CN104291031A - Respiration type automatic dehydration oil return system and method for siphoning type oil tank - Google Patents
Respiration type automatic dehydration oil return system and method for siphoning type oil tank Download PDFInfo
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- CN104291031A CN104291031A CN201410495472.9A CN201410495472A CN104291031A CN 104291031 A CN104291031 A CN 104291031A CN 201410495472 A CN201410495472 A CN 201410495472A CN 104291031 A CN104291031 A CN 104291031A
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- 230000018044 dehydration Effects 0.000 title claims abstract description 66
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 66
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000007788 liquid Substances 0.000 claims description 52
- 239000012530 fluid Substances 0.000 claims description 45
- LLPOLZWFYMWNKH-CMKMFDCUSA-N hydrocodone Chemical compound C([C@H]1[C@H](N(CC[C@@]112)C)C3)CC(=O)[C@@H]1OC1=C2C3=CC=C1OC LLPOLZWFYMWNKH-CMKMFDCUSA-N 0.000 claims description 31
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS 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
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a respiration type automatic dehydration oil return system for a siphoning type oil tank. The respiration type automatic dehydration oil return system comprises the oil tank, a dehydrator, an oil return mechanism, and a main oil pipeline connecting the oil tank with the dehydrator. The oil return mechanism comprises a buffer tank, a branch oil pipeline connecting the buffer tank with the main oil pipeline, and a control mechanism. The buffer tank is filled with water, and the control mechanism is used for controlling oil in the dehydrator to flow into the buffer tank or controlling oil in the buffer tank to flow into the oil tank. Through reduction of the internal pressure of the oil return mechanism, the oil at the upper portion of the dehydrator is pumped out to the oil return mechanism, water at the bottom of the oil tank can flow into the dehydrator through the main oil pipeline, the dehydrator can continue conducting dehydration, if the dehydrator cannot conduct dehydration due to the increase of the oil content of the water, the oil in the oil return mechanism is drained out to the oil tank, the oil at the upper portion of the dehydrator is pumped, and dehydration is conducted cyclically. The respiration type automatic dehydration oil return system is high in automation degree, complete in dehydration, good in oil quality, high in dehydration efficiency and capable of being widely applied to the technical field of petrochemical oil tank dehydration.
Description
Technical field
The invention belongs to petrochemical industry oilcan dehydration technical field, be specifically related to a kind of type of respiration automatic dehydration return oil system for hydrocone type oil tank and method.
Background technology
As shown in Figure 1, hydrocone type oilcan dehydration return oil system comprises oil tank 2, moisture trap 1 and the oil main line road 3 for connecting oil tank and moisture trap, described oil main line road 3 is connected for reclinate elbow 31 with oil tank 1, due to the stop of elbow 31, the oil entering moisture trap 1 cannot automatically return in oil tank 2, by artificial, oil in moisture trap must be drained, dehydration could be continued, such work capacity is large, and the accuracy of artificial oil extraction is not high, only with the aqueous ingredients of workman's subjective judgement oil, the quality of impact oil, and dewatering efficiency is low, can not meet the requirement of modern for oily demand.
Summary of the invention
The object of the invention is to solve above-mentioned artificial dehydration and cause the technical matters that quality is low, dewatering efficiency is not high of dewatering, a kind of degree of automation is high, dehydration quality is high, dewatering efficiency is high the type of respiration automatic dehydration return oil system for hydrocone type oil tank and method are provided.
In order to solve the problem, the present invention is achieved by following technical scheme:
For the type of respiration automatic dehydration return oil system of hydrocone type oil tank, comprise oil tank, moisture trap and the oil main line road being connected described oil tank and described moisture trap, described moisture trap is positioned at described oil tank lower position at least partially, the one end in described oil main line road is arranged on moisture trap upper end, its other end extends in oil tank, and the bottom of described oil tank is extended to by elbow, also comprise oil return mechanism, described oil return mechanism comprises the expansion tank be arranged on oil main line road, control mechanism and connect the branch oil pipe road in described expansion tank and described oil main line road, described branch oil pipe road and described oil main line road communication port are arranged on the top in described oil main line road,
Described control mechanism, for reducing the pressure in described expansion tank, makes barometric pressure that the oil pressure on moisture trap top is entered described expansion tank, or for increasing the pressure in described expansion tank, the oil in described expansion tank is expelled to described oil tank.
Further, described expansion tank comprises the first expansion tank that bottom is communicated with, the second expansion tank and the communicating pipe for being communicated with the first expansion tank and the second expansion tank; The bottom of described second expansion tank is provided with and the first connected entrance be communicated with bottom described first expansion tank, and its top is provided with the first air extractor vent be communicated with external compression air device; Described second expansion tank is built with large and immiscible with the oil liquid dielectric of the density of density ratio oil; Described first expansion tank top is provided with the open top be communicated with described branch oil pipe road;
Described control mechanism comprises the control cock be arranged between described second expansion tank and external compression air device, described control cock is triple valve, its first port is connected with the first air extractor vent of described second expansion tank, its second port is connected with external compression air device, and its third connectivity mouth is communicated with the gas for discharging in the second expansion tank with air; Be provided with the first fluid level controller in described second expansion tank, described first fluid level controller is with the first air extractor vent described in liquid surface lifting shutoff or described first connected entrance.By past second expansion tank injecting compressed air, oil in first expansion tank being expelled to oil tank, by discharging the pressurized air in the second expansion tank, the pressure in the second expansion tank being reduced, under atmospheric pressure, the oil on moisture trap top is drawn in the first expansion tank.
Further, the 3rd expansion tank be communicated with bottom described expansion tank comprises, the 4th expansion tank and the communicating pipe for being communicated with the 3rd expansion tank and the 4th expansion tank, the bottom of described 4th expansion tank is provided with and the second connected entrance be communicated with bottom described 3rd expansion tank, and its top is provided with the second air extractor vent; The liquid dielectric that the density of density ratio oil is large and immiscible with oil is provided with in described 4th expansion tank, be provided with the second fluid level controller in described 4th expansion tank, described second fluid level controller is with the second air extractor vent described in liquid surface lifting shutoff or described second connected entrance;
Described 3rd expansion tank is communicated with described branch oil pipe road, described control mechanism is arranged on branch oil pipe road, described control mechanism comprises T-shaped valve and dump pump, the first interface of described T-shaped valve is connected with described dump pump, its second interface is connected with described 3rd expansion tank, and its 3rd interface is connected with described branch oil pipe road; The other end of described dump pump is connected with described 3rd expansion tank;
Or, described control mechanism is arranged on described communicating pipe, the first interface of described T-shaped valve is connected with described dump pump, its second interface is connected with the other end of dump pump, its the 3rd interface is connected with the bottom through-hole of described 3rd expansion tank, described second interface is also connected with the second connected entrance bottom described 4th expansion tank, and one end that described dump pump is connected with the second interface is also connected with the second connected entrance bottom described 4th expansion tank simultaneously.If scene does not have pressurized air, by dump pump, the oil on the 3rd expansion tank top is drawn to oil tank, the oil on moisture trap top enters the 3rd expansion tank under atmospheric pressure.
Further, described expansion tank comprises the 5th expansion tank, be arranged on the 6th expansion tank above the 5th expansion tank and the first conduit for being communicated with the 5th expansion tank and the 6th expansion tank, one end of described first conduit is communicated with bottom described 6th expansion tank, and the other end extends to the bottom of described 5th expansion tank; The top of described 6th expansion tank is provided with the top connected entrance be communicated with external compression air device; Described 5th expansion tank is provided with the interface be communicated with described branch oil pipe road near tip position;
Control cock is provided with between described 6th expansion tank and external compression air device, described control cock is two-bit triplet electromagnetic valve, the first interface of described electromagnetic valve is connected with described top connected entrance, its second interface is connected with outside compressed-air system, and its 3rd interface is communicated with air as deflation hole;
Described 6th expansion tank is built with large and immiscible with the oil liquid dielectric of the density of density ratio oil, 3rd fluid level controller adrift on described liquid dielectric liquid level, described 3rd fluid level controller is top connected entrance described in shutoff or the first conduit with the lifting of liquid level.
Further, described expansion tank comprising the 7th expansion tank, being arranged on the 8th expansion tank above described 7th expansion tank and the second conduit for being communicated with described 7th expansion tank and described 8th expansion tank, one end of described second conduit is communicated with bottom described 8th expansion tank, and the other end extends to the bottom of described 7th expansion tank; The top of described 8th expansion tank is provided with top connected entrance; Described 7th expansion tank is provided with the interface be communicated with described branch oil pipe road near tip position; Described branch oil pipe road is provided with controller;
Described controller comprises dump pump and T-shaped valve, and the first interface of described T-shaped valve is connected with described dump pump, and its second interface is connected with described 7th expansion tank, and its 3rd interface is connected with described branch oil pipe road; The other end of described dump pump is connected with described 3rd expansion tank;
Described 8th expansion tank is built with large and immiscible with the oil liquid dielectric of the density of density ratio oil, 4th fluid level controller adrift on described liquid dielectric liquid level, described 4th fluid level controller is top connected entrance described in shutoff or described second conduit with the lifting of liquid level.
Further, between described oil tank and described moisture trap, be provided with the first control cock, control being turned on or off of oil main line road.
Further, described branch oil pipe road is provided with the second control cock, controls branch oil pipe road and be turned on or off.
For an oil return method for the type of respiration automatic dehydration return oil system of hydrocone type oil tank, its step comprises:
(1) moisture trap is communicated with by horizontally disposed oil main line road with oil tank, above oil main line road, expansion tank is set, expansion tank is communicated with oil main line road by branch oil pipe road, the pressure of expansion tank inside is reduced by control mechanism, under the effect of air, the oil on moisture trap top enters described expansion tank, and the water that oil is filled with simultaneously flows into moisture trap bottom oil main line road;
(2) moisture trap dehydration;
(3) in moisture trap, oil and the volume ratio of water are increased to certain ratio, stop dehydration, and this ratio is ten thousand/to 10;
(4) control mechanism increases the pressure in expansion tank, the oil in expansion tank is expelled to oil tank, the oil soared in expansion tank;
(5) repeat step (1) ~ (4), dehydration cycle, until moisture trap can not dewater.
Further,
Expansion tank described in described step (1) comprises the first expansion tank and second expansion tank of bottom connection, the liquid dielectric that the density of the first fluid level controller and density ratio oil is large and immiscible with oil is provided with in second expansion tank, toward the second expansion tank injecting compressed air, liquid dielectric in described second expansion tank is pressed into the first expansion tank, first fluid level controller declines along with liquid level, first connected entrance of shutoff second expansion tank, discharge pressurized air, reduce the pressure in the second expansion tank; In described step (4), by toward the second expansion tank injecting compressed air, increase the pressure in the second expansion tank, the oil in the first expansion tank is expelled to oil tank.
Further,
Be provided with control cock between described second expansion tank and external compression air device, described electromagnetic valve is triple valve, and the first port of described control cock connects the second expansion tank, and its second port connects external compression air device; Its third connectivity mouth is communicated with air, for discharging the gas in the second expansion tank.
Further, if scene does not have pressurized air, expansion tank described in described step (1) comprises the 3rd expansion tank and the 4th expansion tank of bottom connection, branch oil pipe road arranges T-shaped valve and dump pump, dump pump by the oil pump in described 3rd expansion tank to oil tank, dump pump quits work, liquid dielectric in 3rd expansion tank returns the 4th assistant cylinder, air pressure in 3rd expansion tank reduces, and the oil on moisture trap top enters the 3rd expansion tank through another interface of T-shaped valve under barometric pressure effect.
Further, expansion tank described in described step (1) comprising the 5th expansion tank, being arranged on the 6th expansion tank above the 5th expansion tank and the first pipe for being communicated with the 5th expansion tank and the 6th expansion tank, described 6th expansion tank top is connected with external compression air device, the electromagnetic valve of two-bit triplet is provided with, the density being provided with density ratio oil in the 6th expansion tank large and the liquid dielectric immiscible with oil and fluid level controller between described 6th expansion tank and external compression air device; By Controlling solenoid valve, control pressurized air and enter the 6th expansion tank, increase the pressure in expansion tank, the oil in discharge the 5th expansion tank is to oil tank; Controlling solenoid valve, discharges the pressurized air in the 6th expansion tank, reduces the pressure in the 6th expansion tank, the oil on moisture trap top is sucked into the 5th expansion tank.
Further, described oil main line road is provided with the first control cock, described branch oil pipe road is provided with the second control cock.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention arranges oil return mechanism, the pressure in expansion tank is reduced by control mechanism, the oil on moisture trap top flow to the tank that backwashes, make the water of tank bottom enter moisture trap by oil main line road, moisture trap is continued dehydration, if can not dewater because oil increases with the volume ratio of water in moisture trap, the pressure in expansion tank is increased by control mechanism, the oil soared in expansion tank, to oil tank, extracts the oil on moisture trap top, dehydration cycle again.Degree of automation of the present invention is high, and dehydration is clean, the quality better of oil, and dewatering efficiency is high, can be widely used in petrochemical industry oilcan dehydration technical field.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is existing hydrocone type oilcan dehydration return oil system schematic diagram;
Fig. 2 is the structural representation for the type of respiration automatic dehydration return oil system of hydrocone type oil tank described in embodiment one;
Fig. 3 is the structural representation for the type of respiration automatic dehydration return oil system of hydrocone type oil tank described in embodiment two;
Fig. 4 is the structural representation for the type of respiration automatic dehydration return oil system of hydrocone type oil tank described in embodiment three;
Fig. 5 is the structural representation for the type of respiration automatic dehydration return oil system of hydrocone type oil tank described in embodiment four;
Fig. 6 is the structural representation for the type of respiration automatic dehydration return oil system of hydrocone type oil tank described in embodiment five.
In figure: 1-moisture trap, 2-oil tank, 3-oil main line road, 31-elbow, 32-first control cock, 4-oil, 5-water, 6-branch oil pipe road, 61-second control cock, 7-oil return mechanism, 71-first expansion tank, 72-second expansion tank, 73-first fluid level controller, 74-first air extractor vent, 75-first connected entrance, 76-first electromagnetic valve, 77-second port, 78-exhausr port, 81-the 3rd expansion tank, 82-the 4th expansion tank, 83-second fluid level controller, 84-second vent, 85-second connected entrance, 86-T type valve, 87-dump pump; 91-the 5th expansion tank, 92-the 6th expansion tank, 921-first conduit, 922-top connected entrance, 93-the 3rd fluid level controller, 94-second electromagnetic valve, 941-first vent, 942-second vent, 943-the 3rd vent, 95-the 7th expansion tank, 96-the 8th expansion tank, 961-second conduit, 962-vent, 97-the 4th fluid level controller, 98-the 3rd electromagnetic valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment one
As shown in Figure 2, type of respiration automatic dehydration return oil system for hydrocone type oil tank of the present invention, comprise moisture trap 1, oil tank 2, oil return mechanism 7 and the oil main line road 3 being connected described oil tank 2 and described moisture trap 1, described moisture trap 1 is positioned at described oil tank 2 lower position at least partially, the one end in described oil main line road 3 is arranged on moisture trap 1 upper end, its other end extends in oil tank 2, and the bottom of described oil tank 2 is extended to by elbow 31, described oil return mechanism 7 comprises the first expansion tank 71 and the second expansion tank 72 that bottom is interconnected, connect the branch oil pipe road 6 in the first expansion tank 71 and oil main line road 3, the bottom of the second expansion tank 72 is provided with and the first connected entrance 78 be communicated with bottom described first expansion tank 71, its top is provided with the first vent 74 be communicated with external compression air device, electromagnetic valve 76 is provided with between described second expansion tank 72 and external compression air device, described electromagnetic valve 76 is triple valve, its first interface is connected with the first air extractor vent 74 of the second expansion tank 72, second port 77 is connected with external compression air device, its the 3rd interface is exhausr port 78, in described second expansion tank 72, the first fluid level controller 73 is set, described second expansion tank 72 is built with large and immiscible with the oil liquid dielectric of the density of density ratio oil, liquid dielectric in the present embodiment is water, described first fluid level controller 73 is ball float, and it is with having described first connected entrance 75 or described first air extractor vent 74 described in the water surface fluctuation shutoff in the second expansion tank 72.
Described oil main line road 3 is provided with first control cock 32 of closing or opening oil main line road 3, described branch oil pipe road 6 is provided with the second control cock 61.
Described in the present embodiment, the oil return method of hydrocone type oilcan dehydration return oil system is:
(1), opens solenoid valve 76, pressurized air enters the second expansion tank 72 from the second port 77, and the water in the second expansion tank 72 is pressed into the first expansion tank 71; The oil on the first expansion tank 71 top enters oil tank 2 through branch oil pipe road 6.
The liquid level of (2) second expansion tanks 72 declines, after the first fluid level controller 73 drops to bottom, by the first connected entrance 75 shutoff of the second expansion tank 72.
(3) the second port 77 of shut electromagnetic valve 76, the pressurized air entering the second expansion tank 72 is discharged through exhausr port 78, the pressure of the second expansion tank 72 inside reduces, under the effect of oil tank 2 self-pressure, the oil on moisture trap 1 top enters into the first expansion tank 71, first fluid level controller 73 rises along with liquid level, arrives behind top, the first air extractor vent 74 of shutoff second expansion tank 72; The pressure of moisture trap 1 reduces, and the water bottom oil tank 2 enters oil main line road 3 through elbow 31, enters into moisture trap 1.
(4) moisture trap 1 dewaters, and is discharged by water; In moisture trap 1, oil increases with the volume ratio of water, reach ten thousand/to 10, when moisture trap stops dewatering; Repeat step (1) ~ (3), until moisture trap 1 can not discharge water, the water in oil tank clears, and completes dehydration.
Embodiment two
As shown in Figure 3, except oil return mechanism is different in the present embodiment, other structure is identical with embodiment one, oil return mechanism described in the present embodiment comprises the 3rd expansion tank 81 and the 4th expansion tank 82 of bottom connection, described 4th expansion tank 81 top is provided with the second air extractor vent 84, the second connected entrance 85 is provided with bottom it, in described 4th expansion tank 82, the second fluid level controller 83 is set, described 4th expansion tank 82 is built with large and immiscible with the oil liquid dielectric of the density of density ratio oil, liquid dielectric in the present embodiment is water, described second fluid level controller 83 is with the second connected entrance 85 described in the water surface fluctuation shutoff in the 4th expansion tank 82 or described second air extractor vent 84.
Described branch oil pipe road 6 is provided with control mechanism, described control mechanism comprises T-shaped valve 86 and dump pump 87, three connectors of described T-shaped valve 86 are respectively joint A, joint B and joint C, joint C is connected with branch oil pipe road 6, joint A is connected with one end of dump pump 87, joint B is connected with the 3rd expansion tank 81, and the other end of described dump pump 87 is connected with the 3rd expansion tank 81.
The oil return method of the type of respiration automatic dehydration return oil system for hydrocone type oil tank described in the present embodiment is:
(1) start dump pump 87, the joint A of T-shaped valve 86 is communicated with joint C, and joint B closes, and the oil in the 3rd expansion tank 81 is extracted out by dump pump 87, and oil, along solid line method flowing as shown in Figure 3, gets back to oil tank 2 through branch oil pipe road 6.
The second fluid level controller 83 in (2) the 4th expansion tanks 82 drops to the bottom of the 4th expansion tank 82 along with the decline of liquid level, by the second connected entrance 85 shutoff.
(3) dump pump 87 quits work, the joint C of T-shaped valve 86 and joint B conducting, according to the principle of permeator, water in 3rd expansion tank 81 is back in the 4th expansion tank 82, the pressure of the 3rd expansion tank 81 reduces, and the water that the oil 4 on moisture trap 1 top enters bottom the 3rd expansion tank the 81, three expansion tank 81 through joint C and joint B enters the 4th expansion tank 82, second fluid level controller 83 rises along with liquid level, seals second vent 84 at the 4th expansion tank 82 top; Meanwhile, the water 5 bottom oil tank 2 enters moisture trap 1 through oil main line 3.
(4) moisture trap 1 dewaters, discharge water, in moisture trap 1, oil increases with the volume ratio of water, reach ten thousand/to 10, moisture trap stops dehydration, repeats step (1) ~ (3), repeatedly dewater, moisture trap can not discharge water again, illustrates in oil tank do not have water, completes oilcan dehydration.
Embodiment three
As shown in Figure 4, the present embodiment is except oil return mechanism is different from embodiment one, other structure & working mechanism and enforcement are executed one identical, described oil return mechanism comprises the 5th expansion tank 91, first conduit 921 of the 6th expansion tank 92 and connection the 5th expansion tank 91 and the 6th expansion tank 92, described 6th expansion tank 92 is arranged on the top of the 5th expansion tank 91, one end of described first conduit 921 is arranged on the bottom of the 6th expansion tank 92, the other end extends to the bottom of described 5th expansion tank 91, described 5th expansion tank 91 is provided with input port near tip position, described 5th expansion tank 91 connects branch oil pipe road 6 by input port and is communicated with oil main line road 3, the liquid dielectric that the density of density ratio oil is large described 6th expansion tank 92 is equipped with, described liquid dielectric is water, the described water surface is placed with the 3rd fluid level controller 93, it is along with the lifting of the water surface, the top connected entrance 922 of the 6th expansion tank 92 described in shutoff or bottom connected entrance, the top connected entrance 922 of described 6th expansion tank 92 is communicated with the second electromagnetic valve 94 of two-bit triplet, first vent 941 of described second electromagnetic valve 94 is connected with top connected entrance 922, its second vent 942 is connected with outside compressed-air system, its the 3rd vent 943 is as deflation hole.
For the dewatering of the type of respiration automatic dehydration return oil system of hydrocone type oil tank described in the present embodiment, the steps include:
(1) open the second electromagnetic valve 94, make pressurized air through the second vent 942 and the first vent 941, the water entered in the 6th expansion tank the 92, six expansion tank 92 enters the 5th slow portion tank 91 through conduit 921.
(2) when the bottom of the 6th expansion tank 92 is down in underwater, the bottom connected entrance of the 3rd fluid level controller 93 shutoff the 6th expansion tank 92.
(3) the second electromagnetic valve 94 is closed, first vent 941 and the 3rd vent 943 conducting, pressurized air is discharged from the 3rd vent 943, air pressure in 6th expansion tank declines instantaneously, water in 5th expansion tank 91 returns in the 6th expansion tank 92 through the first conduit 921, in moisture trap 1, the oil of upper surface enters the 5th expansion tank 91 through branch oil pipe road, and meanwhile, the water of oil tank 2 enters moisture trap through oil main line road.
(4) along with the water surface rises to the top of the 6th expansion tank 92, the top connected entrance 922 of the 3rd fluid level controller 93 shutoff the 6th expansion tank 92.
(5) moisture trap dewaters, water is discharged, along with moisture trap Zhong Shui and the volume ratio of oil increase, moisture trap can not dewater, and repeats step (1) ~ (4), by the oil pressure oil return tank in the 5th expansion tank 91, oil again in sucking-off moisture trap, carry out dehydration cycle, until the de-not water outlet of moisture trap, complete oilcan dehydration.
Embodiment four
As shown in Figure 5, for the type of respiration automatic dehydration return oil system of hydrocone type oil tank described in the present embodiment, except oil return mechanism 7, other structure is identical with embodiment two, oil return mechanism 7 described in the present embodiment comprises the 3rd expansion tank 81, the 4th expansion tank 82, for being communicated with the communicating pipe of the 3rd expansion tank 81 and the 4th expansion tank 82, the center of gravity of described 3rd expansion tank 81 arranges higher than the center of gravity of the 4th expansion tank 82.Be provided with control mechanism between described 3rd expansion tank 81 and the 4th expansion tank 82, the top of described 3rd expansion tank 81 is provided with outlet, is communicated with oil main line road 3 by branch oil pipe road 6.
Described control mechanism comprises T-shaped valve 86 and dump pump 87, three connectors of described T-shaped valve 86 are respectively joint A, joint B and joint C, joint C is connected with branch oil pipe road 6, joint A is connected with one end of dump pump 87, joint B is connected with the 3rd expansion tank 81, and the other end of described dump pump 87 is connected with the 3rd expansion tank 81.
The top of described 4th expansion tank 84 is provided with the second vent 84, the large liquid dielectric of density ratio oil is equipped with in its inside, liquid dielectric in the present embodiment is water, the water surface is provided with the second fluid level controller 83, second fluid level controller 83 along with the lifting of the water surface, second vent 84 at its top of shutoff or the second connected entrance 85 bottom it.
For the method that the type of respiration automatic dehydration return oil system of hydrocone type oil tank dewaters described in the present embodiment, its step comprises:
(1) start dump pump 87, the joint A of T-shaped valve 86 is communicated with joint C, and joint B closes, and the water in the 4th expansion tank 82 is discharged to oil tank 2 by the oil that dump pump 87 is evacuated to the 3rd expansion tank the 81, three expansion tank 82.
The second fluid level controller 83 in (2) the 4th expansion tanks 82 drops to the bottom of the 4th expansion tank 82 along with the decline of liquid level, by the second connected entrance 85 shutoff.
(3) dump pump 87 quits work, the joint C of T-shaped valve 86 and joint B conducting, the water of the 3rd expansion tank 81 is back to the 4th expansion tank 82 by joint C and joint B, air pressure in expansion tank 81 reduces, the oil 4 on moisture trap 1 top enters the 3rd expansion tank 81, second fluid level controller 83 rises along with liquid level, seals second vent 84 at the 4th tank 82 top, slow portion; Meanwhile, the water 5 bottom oil tank 2 enters moisture trap 1 through oil main line 3.
(4) moisture trap 1 dewaters, discharge water, in moisture trap 1, oil increases with the volume ratio of water, reach ten thousand/to 10, moisture trap stops dehydration, repeats step (1) ~ (3), repeatedly dewater, moisture trap can not discharge water again, illustrates in oil tank do not have water, completes oilcan dehydration.
Embodiment five as shown in Figure 6, for the type of respiration automatic dehydration return oil system of hydrocone type oil tank described in the present embodiment, except oil return mechanism 7, other structure is identical with embodiment one, described oil return mechanism 7 comprises the 7th expansion tank 95, be arranged on the 8th expansion tank 96 above the 7th expansion tank 95, for being communicated with the second conduit 961 of the 7th expansion tank 95 and the 8th expansion tank 96, described 7th expansion tank 95 is provided with water outlet near tip position, described water outlet is connected with oil main line road 3 by branch oil pipe road 6, described branch oil pipe road 6 is provided with control mechanism, described 8th expansion tank 96 top is provided with vent 962.One end of described second conduit 961 is arranged on the bottom of the 8th expansion tank 96, the other end extends to the bottom of the 7th expansion tank 95, described 8th expansion tank 96 is built with the large liquid dielectric of the density of density ratio oil, in the present embodiment, described liquid dielectric is water, 4th fluid level controller 97 adrift on the water surface, described 4th fluid level controller 97 with the lifting of the water surface, the vent 962 at the 8th expansion tank 97 top described in shutoff or the second conduit 961 bottom it.
Described control mechanism comprises the second T-shaped valve 86 and dump pump 87, three connectors of described T-shaped valve 86 are respectively joint A, joint B and joint C, joint C is connected with branch oil pipe road 6, joint A is connected with one end of dump pump 87, joint B is connected with the 7th expansion tank 95, and the other end of described dump pump 87 is connected with the 7th expansion tank 95.
For the method that the type of respiration automatic dehydration return oil system of hydrocone type oil tank dewaters described in the present embodiment, its step comprises:
(1) start dump pump 87, the joint A of T-shaped valve 86 is communicated with joint C, and joint B closes, and the oil of the 7th expansion tank 95 is drawn to oil tank 2, and the water in the 8th expansion tank 96 flow to the 7th expansion tank 95 through the second conduit 962 under gravity.
The 4th fluid level controller 97 in (2) the 8th expansion tanks 96 drops to the bottom of the 8th expansion tank 96 along with the decline of liquid level, by the second conduit 961 shutoff.
(3) dump pump 87 quits work, the joint C of T-shaped valve 86 and joint B conducting, the water of the 7th expansion tank 81 flow to the 8th expansion tank 96 at oil tank next time from pressure, air pressure in 7th expansion tank 95 reduces, the oil 4 on moisture trap 1 top enters the 7th expansion tank 95,4th fluid level controller 97 rises along with liquid level, seals the vent 962 at the 8th tank 96 top, slow portion; Meanwhile, the water 5 bottom oil tank 2 enters moisture trap 1 through oil main line 3.
(4) moisture trap 1 dewaters, discharge water, in moisture trap 1, oil increases with the volume ratio of water, reach ten thousand/to 10, moisture trap stops dehydration, repeats step (1) ~ (3), repeatedly dewater, moisture trap can not discharge water again, illustrates in oil tank do not have water, completes oilcan dehydration.
The present invention dewaters through iterative cycles, and degree of automation is high, and dehydration is clean, the quality better of oil, and dewatering efficiency is high, can be widely used in petrochemical industry oilcan dehydration technical field.
Described in the present embodiment for other structure of the type of respiration automatic dehydration return oil system of hydrocone type oil tank see prior art.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, therefore everyly do not depart from technical solution of the present invention content, the any amendment done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. the type of respiration automatic dehydration return oil system for hydrocone type oil tank, comprise the oil main line road of the described oil tank of oil tank, moisture trap and connection and described moisture trap, described moisture trap is positioned at described oil tank lower position at least partially, the one end in described oil main line road is arranged on moisture trap upper end, its other end extends in oil tank, and the bottom of described oil tank is extended to by elbow, it is characterized in that:
Also comprise oil return mechanism, described oil return mechanism comprises the expansion tank be arranged on oil main line road, control mechanism and connects the branch oil pipe road in described expansion tank and described oil main line road, and described branch oil pipe road and described oil main line road communication port are arranged on the top in described oil main line road;
Described control mechanism, for reducing the pressure in described expansion tank, makes barometric pressure that the oil pressure on moisture trap top is entered described expansion tank, or for increasing the pressure in described expansion tank, the oil in described expansion tank is expelled to described oil tank.
2. according to claim 1 for the type of respiration automatic dehydration return oil system of hydrocone type oil tank, it is characterized in that: the first expansion tank be communicated with bottom described expansion tank comprises, the second expansion tank and the communicating pipe for being communicated with the first expansion tank and the second expansion tank; The bottom of described second expansion tank is provided with and the first connected entrance be communicated with bottom described first expansion tank, and its top is provided with the first air extractor vent be communicated with external compression air device; Described second expansion tank is built with large and immiscible with the oil liquid dielectric of the density of density ratio oil; Described first expansion tank top is provided with the open top be communicated with described branch oil pipe road;
Described control mechanism comprises the control cock be arranged between described second expansion tank and external compression air device, described control cock is triple valve, its first port is connected with the first air extractor vent of described second expansion tank, its second port is connected with external compression air device, and its third connectivity mouth is communicated with the gas for discharging in the second expansion tank with air; Be provided with the first fluid level controller in described second expansion tank, described first fluid level controller is with the first air extractor vent described in liquid surface lifting shutoff or described first connected entrance.
3. according to claim 1 for the type of respiration automatic dehydration return oil system of hydrocone type oil tank, it is characterized in that: the 3rd expansion tank be communicated with bottom described expansion tank comprises, the 4th expansion tank and the communicating pipe for being communicated with the 3rd expansion tank and the 4th expansion tank, the bottom of described 4th expansion tank is provided with and the second connected entrance be communicated with bottom described 3rd expansion tank, and its top is provided with the second air extractor vent; The liquid dielectric that the density of density ratio oil is large and immiscible with oil is provided with in described 4th expansion tank, be provided with the second fluid level controller in described 4th expansion tank, described second fluid level controller is with the second air extractor vent described in liquid surface lifting shutoff or described second connected entrance;
Described 3rd expansion tank is communicated with described branch oil pipe road, described control mechanism is arranged on branch oil pipe road, described control mechanism comprises T-shaped valve and dump pump, the first interface of described T-shaped valve is connected with described dump pump, its second interface is connected with described 3rd expansion tank, and its 3rd interface is connected with described branch oil pipe road; The other end of described dump pump is connected with described 3rd expansion tank;
Or, described control mechanism is arranged on described communicating pipe, the first interface of described T-shaped valve is connected with described dump pump, its second interface is connected with the other end of described dump pump, its the 3rd interface is connected with the bottom through-hole of described 3rd expansion tank, described second interface is also connected with the second connected entrance bottom described 4th expansion tank, and one end that described dump pump is connected with the second interface is also connected with the second connected entrance bottom described 4th expansion tank simultaneously.
4. according to claim 1 for the type of respiration automatic dehydration return oil system of hydrocone type oil tank, it is characterized in that: described expansion tank comprises the 5th expansion tank, be arranged on the 6th expansion tank above the 5th expansion tank and the first conduit for being communicated with the 5th expansion tank and the 6th expansion tank, one end of described first conduit is communicated with bottom described 6th expansion tank, and the other end extends to the bottom of described 5th expansion tank; The top of described 6th expansion tank is provided with the top connected entrance be communicated with external compression air device; Described 5th expansion tank is provided with the interface be communicated with described branch oil pipe road near tip position;
Control cock is provided with between described 6th expansion tank and external compression air device, described control cock is two-bit triplet electromagnetic valve, the first interface of described electromagnetic valve is connected with described top connected entrance, its second interface is connected with outside compressed-air system, and its 3rd interface is communicated with air as deflation hole;
Described 6th expansion tank is built with large and immiscible with the oil liquid dielectric of the density of density ratio oil, 3rd fluid level controller adrift on described liquid dielectric liquid level, described 3rd fluid level controller is top connected entrance described in shutoff or the first conduit with the lifting of liquid level.
5. according to claim 1 for the type of respiration automatic dehydration return oil system of hydrocone type oil tank, it is characterized in that: described expansion tank comprising the 7th expansion tank, being arranged on the 8th expansion tank above described 7th expansion tank and the second conduit for being communicated with described 7th expansion tank and described 8th expansion tank, one end of described second conduit is communicated with bottom described 8th expansion tank, and the other end extends to the bottom of described 7th expansion tank; The top of described 8th expansion tank is provided with top connected entrance; Described 7th expansion tank is provided with the interface be communicated with described branch oil pipe road near tip position; Described branch oil pipe road is provided with controller;
Described controller comprises dump pump and T-shaped valve, and the first interface of described T-shaped valve is connected with described dump pump, and its second interface is connected with described 7th expansion tank, and its 3rd interface is connected with described branch oil pipe road; The other end of described dump pump is connected with described 3rd expansion tank;
Described 8th expansion tank is built with large and immiscible with the oil liquid dielectric of the density of density ratio oil, 4th fluid level controller adrift on described liquid dielectric liquid level, described 4th fluid level controller is top connected entrance described in shutoff or described second conduit with the lifting of liquid level.
6. as described in any one of claim 1 to 5 for an oil return method for the type of respiration automatic dehydration return oil system of hydrocone type oil tank, its step comprises:
(1) moisture trap is communicated with by horizontally disposed oil main line road with oil tank, above oil main line road, expansion tank is set, expansion tank is communicated with oil main line road by branch oil pipe road, the pressure of expansion tank inside is reduced by control mechanism, under the effect of air, the oil on moisture trap top enters described expansion tank, and the water that oil is filled with simultaneously flows into moisture trap bottom oil main line road;
(2) moisture trap dehydration;
(3) in moisture trap, oil is increased to certain ratio with the volume ratio of water, stops dehydration;
(4) control mechanism increases the pressure in expansion tank, the oil in expansion tank is expelled to oil tank, the oil soared in expansion tank;
(5) repeat step (1) ~ (4), dehydration cycle, until moisture trap can not discharge water again.
7. hydrocone type oil tank automatic dehydration oil return method according to claim 6, it is characterized in that: expansion tank described in described step (1) comprises the first expansion tank and second expansion tank of bottom connection, the liquid dielectric that the density of the first fluid level controller and density ratio oil is large and immiscible with oil is provided with in second expansion tank, toward the second expansion tank injecting compressed air, liquid dielectric in described second expansion tank is pressed into the first expansion tank, first fluid level controller declines along with liquid level, first connected entrance of shutoff second expansion tank, discharge pressurized air, reduce the pressure in the second expansion tank, in described step (4), by toward the second expansion tank injecting compressed air, increase the pressure in the second expansion tank, the oil in the first expansion tank is expelled to oil tank.
8. hydrocone type oil tank automatic dehydration oil return method according to claim 7, it is characterized in that: between described second expansion tank and external compression air device, be provided with control cock, described electromagnetic valve is triple valve, first port of described control cock connects the second expansion tank, and its second port connects external compression air device; Its third connectivity mouth is communicated with air, for discharging the gas in the second expansion tank.
9. hydrocone type oil tank automatic dehydration oil return method according to claim 6, it is characterized in that: expansion tank described in described step (1) comprises the 3rd expansion tank and the 4th expansion tank of bottom connection, branch oil pipe road arranges T-shaped valve and dump pump, dump pump by the oil pump in described 3rd expansion tank to oil tank, dump pump quits work, liquid dielectric in 3rd expansion tank returns the 4th assistant cylinder, air pressure in 3rd expansion tank reduces, and the oil on moisture trap top enters the 3rd expansion tank through another interface of T-shaped valve under barometric pressure effect.
10. hydrocone type oil tank automatic dehydration oil return method according to claim 6, it is characterized in that: described in described step (1), expansion tank comprises the 5th expansion tank, be arranged on the 6th expansion tank above the 5th expansion tank and the first conduit for being communicated with the 5th expansion tank and the 6th expansion tank, described 6th expansion tank top is connected with external compression air device, the electromagnetic valve of two-bit triplet is provided with between described 6th expansion tank and external compression air device, the density being provided with density ratio oil in 6th expansion tank large and the liquid dielectric immiscible with oil and fluid level controller, by Controlling solenoid valve, control pressurized air and enter the 6th expansion tank, increase the pressure in expansion tank, the oil in discharge the 5th expansion tank is to oil tank, Controlling solenoid valve, discharges the pressurized air in the 6th expansion tank, reduces the pressure in the 6th expansion tank, the oil on moisture trap top is sucked into the 5th expansion tank.
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| CN201410495472.9A CN104291031B (en) | 2014-09-24 | 2014-09-24 | A kind of type of respiration automatic dehydration oil return system and method for hydrocone type oil tank |
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| CN201410495472.9A CN104291031B (en) | 2014-09-24 | 2014-09-24 | A kind of type of respiration automatic dehydration oil return system and method for hydrocone type oil tank |
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| CN105416893A (en) * | 2015-12-14 | 2016-03-23 | 广州天禾自动化实业有限公司 | Automatic dehydrating and oil returning system for siphoning type oil tank and oil returning method |
| CN106742857A (en) * | 2017-02-17 | 2017-05-31 | 中国人民解放军后勤工程学院 | Oil storage tank de-watering apparatus |
| CN108626578A (en) * | 2017-03-23 | 2018-10-09 | 中科隆声科技有限公司 | Storage tank siphon port automatic dehydration return-flow system without refluxing opening and method |
| CN109513235A (en) * | 2019-01-10 | 2019-03-26 | 成都润亿达环境科技有限公司 | Food and beverage greasy dirt water separating equipment |
| CN110203572A (en) * | 2019-07-08 | 2019-09-06 | 广州天禾自动化实业有限公司 | A kind of dormancy method and sleep devices for oilcan dehydration system |
| CN113321266A (en) * | 2021-05-24 | 2021-08-31 | 北京瑞普三元仪表有限公司 | Oil-water dual-phase flow separation device, system and method |
| CN114955282A (en) * | 2022-04-27 | 2022-08-30 | 广州天禾自动化实业有限公司 | Oil return system for oil tank dehydration |
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Address after: Room 801, Building A, No. 10 Xicheng Middle Street, Huangpu District, Guangzhou City, Guangdong Province, 510730 Patentee after: GUANGZHOU DAY WO AUTOMATION INDUSTRIAL Co.,Ltd. Address before: 1102B, No. 9 Caibin Road, High tech Industrial Development Zone, Guangzhou City, Guangdong Province, 510663 Patentee before: GUANGZHOU DAY WO AUTOMATION INDUSTRIAL Co.,Ltd. |