CN205114147U - Crude oil storage tank - Google Patents
Crude oil storage tank Download PDFInfo
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- CN205114147U CN205114147U CN201520540406.9U CN201520540406U CN205114147U CN 205114147 U CN205114147 U CN 205114147U CN 201520540406 U CN201520540406 U CN 201520540406U CN 205114147 U CN205114147 U CN 205114147U
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- storage tank
- crude oil
- tank body
- oil storage
- sidewall
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Abstract
The utility model provides a crude oil storage tank. This crude oil storage tank includes: storage tank body, storage tank body have the oil storage chamber, and storage tank body direct mount still includes at ground, crude oil storage tank: the heat preservation system, heat preservation ystem installation is on the jar wall of storage tank body, aspirating oily system, aspirating the oil absorption end of oily system and stretch the into oil storage intracavity of storage tank body, the end that produces oil that aspirates oily system sets up the outside at the storage tank body. Use the technical scheme of the utility model crude oil storage tank installation procedure is loaded down with trivial details in can solving prior art, and the cooperation equipment vehicle that needs when retrieving crude oil is more, and can't carry out the heat retaining problem of automation to the crude oil of storing.
Description
Technical field
The utility model relates to crude storage apparatus field, in particular to a kind of crude oil storage tank.
Background technology
At present, the Oil Field differed greatly with the temperature in summer in the winter time, for not possessing the indivedual oil wells carrying out line production system production, mainly takes the mode of production of single-well crude oil storage tank.
Crude oil storage tank mainly contains following several mode:
(1) on the tank base manually piled up, 60m is installed
3insulation oil storage round can, because insulation oil storage round can has suitable setting height(from bottom), therefore crude oil relies on the gravity of self, to complete the operation of loading crude oil to transportation tank car.
(2) adopt metallic elevated tank base, 20m installed by metallic elevated tank base
3or 40m
3oil storage side's tank, is stored in the crude oil had in oil storage side's tank of suitable setting height(from bottom) and relies on self gravitation, to complete the operation of loading crude oil to transportation tank car.
(3) on level land, directly 20m is used
3or 40m
3oil storage side's tank carries out oil storage, when loading transports crude oil, utilizes the receipts oil car being provided with vehicle-mounted oil well pump to coordinate transportation tank car to carry out loading crude oil, namely receives the crude oil in oil storage side's tank is drawn into transportation tank car by oily car oil tank by vehicle-mounted oil well pump.
There is the problem that in the process of installing insulation oil storage round can, installation procedure is more in the oil storage mode of the first crude oil storage tank, the work that staff cleans insulation oil storage round can is finite space operation, cause cleaning inconvenient, and when insulation oil storage round can is transported to lower a bite oil well to use it to carry out oil storage by needs, after staff carries complete insulation oil storage round can, the tank base in original place needs the reduction work of carrying out recovering landforms, and the working strength of staff is large.
In the oil storage mode of the second with the third crude oil storage tank, utilize the 20m without insulation
3or 40m
3oil storage side's tank carries out oil storage, when temperature is low in the winter time, loading crude oil before, the crude oil in oil storage side's tank need rely on steam coach produce steam heat carry out preheating, with after the crude oil that thaws again by the oil tank of crude oil loading to transportation tank car.The second and the third oil storage mode exist the oily process of receipts with the oily car cooperating of receipts to load crude oil, especially, also must be needed and steam coach cooperating in the winter time.
Utility model content
Main purpose of the present utility model is to provide a kind of crude oil storage tank, loaded down with trivial details to solve prior art Crude Oil storage tank installation procedure, and cannot carry out the problem of automatic heat preserving to the crude oil stored.
To achieve these goals, according to an aspect of the present utility model, a kind of crude oil storage tank is provided, comprise: storage tank body, storage tank body has shoe cream room, and storage tank body is directly installed on ground, crude oil storage tank also comprises: heat-insulation system, and heat-insulation system is arranged on the tank skin of storage tank body; Suction oil system, the oil absorbing end of suction oil system puts in the shoe cream room of storage tank body, and the oil outlet end of suction oil system is arranged on the outside of storage tank body.
Further, crude oil storage tank also comprises: storage tank support portion, and storage tank support portion is placed on ground, and storage tank body is arranged on storage tank support portion, and bottom wall outer and the ground of storage tank body have gap.
Further, storage tank body comprises sidewall, and wherein, sidewall comprises the first side wall and the second sidewall that are oppositely arranged, and heat-insulation system comprises: heating arrangement, and the first end of heating arrangement is fixed on the first side wall, and the second end of heating arrangement extends towards the second sidewall.
Further, storage tank body also comprises base plate and top board, and base plate, top board and sidewall form shoe cream room, and heat-insulation system also comprises: insulation bed course, is provided with insulation bed course in sidewall, base plate and top board.
Further, heating arrangement is multiple, and multiple heating arrangement is distributed in shoe cream room in the horizontal direction, and has gap between heating arrangement and base plate.
Further, crude oil storage tank also comprises the liquidometer for detecting crude oil liquid level in shoe cream room.
Further, liquidometer comprises: floating block, is arranged in shoe cream room; Pouring weight, this is external to be arranged on storage tank; Connection cord, the first end of connection cord is connected with floating block, and the second end of connection cord is connected with pouring weight, and connection cord is stretched between floating block and pouring weight.
Further, liquidometer also comprises: Liquid level scale, and Liquid level scale is arranged on the outside of sidewall, and connection cord walks around the end of Liquid level scale, and pouring weight is arranged on Liquid level scale movably.
Further, sidewall is provided with cleaning exhaust outlet.
Further, base plate is provided with cleaning sewage draining exit.
Application the technical solution of the utility model, the storage tank body of this crude oil storage tank can be directly installed on ground, and, time in the winter time, by heat-insulation system the crude oil freezed in shoe cream room heated and be incubated, then by suction oil system, crude oil being extracted out to be delivered to the vehicle transported crude oil.Application the technical solution of the utility model, ground does not recycle ground because storage tank body is directly installed on storage tank body is raised, thus the work that staff piles up ground is saved, alleviate the labour intensity of staff, and, the function that crude oil storage tank of the present utility model has heating in crude oil and is incubated crude oil, which offers a saving the tedious work utilizing steam coach to heating crude oil in addition, simplify the requirement of carried of crude oil to working equipment, then the suction oil system had by crude oil storage tank self is pumped crude oil, pumping is carried out without the need to other pumping vehicle, simplify the work of pumping crude oil, the difficult problem that the cooperating equipment vehicle needed when solving recovery crude oil is more.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the main TV structure schematic diagram of the embodiment according to crude oil storage tank of the present utility model;
Fig. 2 shows the right TV structure schematic diagram of Fig. 1;
Fig. 3 shows the plan structure schematic diagram of Fig. 1;
Fig. 4 shows the backsight structural representation of Fig. 1.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, storage tank body; 11, sidewall;
12, base plate; 13, top board;
20, heat-insulation system; 21, heating arrangement;
22, bed course is incubated; 30, oil system is aspirated;
31, oil outlet end; 40, storage tank support portion;
50, liquidometer; 51, floating block;
52, pouring weight; 53, connection cord;
54, Liquid level scale; 60, exhaust outlet is cleaned;
70, sewage draining exit is cleaned; 82, roof manhole portion;
83, the outer cat ladder of tank; 85, cat ladder in tank.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
It is noted that following detailed description is all exemplary, be intended to provide further instruction to the application.Unless otherwise, all technology used herein and scientific terminology have the identical meanings usually understood with the application person of an ordinary skill in the technical field.
As shown in Figure 1 to Figure 3, a kind of crude oil storage tank is present embodiments provided.This crude oil storage tank comprises the storage tank body 10 with shoe cream room, and storage tank body 10 can be directly installed on ground.In the present embodiment, crude oil storage tank also comprises heat-insulation system 20 and suction oil system 30, wherein, heat-insulation system 20 is arranged on the tank skin of storage tank body 10, the oil absorbing end of suction oil system 30 puts in the shoe cream room of storage tank body 10, and the oil outlet end 31 of suction oil system 30 is arranged on the outside of storage tank body 10.
Ground does not recycle ground because storage tank body is directly installed on storage tank body is raised, like this, crude oil storage tank can be put suitably according to the actual condition in well site, thus the work that staff piles up ground early stage is saved, the erection work of this crude oil storage tank is simple, alleviate the labour intensity of staff, and, the function that the crude oil storage tank of the present embodiment has heating in crude oil and is incubated crude oil, which offers a saving the tedious work utilizing steam coach to heating crude oil in addition, simplify the requirement of carried of crude oil to working equipment, then the suction oil system had by crude oil storage tank self is pumped crude oil, adopt auto-pumping oil submerged pump that crude oil is pumped to transport trolley, the pumping work aspirating crude oil is carried out without the need to additional pumping vehicle, simplify the work of pumping crude oil, the difficult problem that the cooperating equipment vehicle needed when solving recovery crude oil is more.And, when crude oil storage tank is transported to another well site from a well site by needs, staff can directly utilize flat truck to be pulled away by crude oil storage tank, without the need to carrying out land restoration (this crude oil storage tank eliminates the work that early stage piles up ground) to well site again.
As shown in Figure 2, crude oil storage tank also comprises storage tank support portion 40.In the present embodiment, storage tank support portion 40 adopts I-beam section as support beam.After crude oil storage tank installation, in order to ensure, between the bottom of storage tank body 10 and ground, there is enough gaps, ground humidity corrosion is subject to prevent storage tank body 10, therefore, before installation storage tank body 10, first on the ground place storage tank support portion 40, then storage tank body 10 is arranged on storage tank support portion 40, with the bottom wall outer and ground that make storage tank body 10, there is enough gaps.
In the present embodiment, storage tank body 10 comprises sidewall 11, wherein, sidewall 11 comprises the first side wall and the second sidewall that are oppositely arranged, as shown in figures 1 and 3, heat-insulation system 20 comprises heating arrangement 21, wherein, the first end of heating arrangement 21 is fixed on the first side wall, second end of heating arrangement 21 extends towards the second sidewall that (namely heating arrangement 21 is across between the first side wall and the second sidewall, but being only fixed on the first side wall by its first end of heating arrangement 21, and its second end is not connected with the second sidewall but unsettled in shoe cream room).Time in the winter time, heated by the crude oil freezed in heating arrangement 21 pairs of shoe cream rooms, thus improve the flowing power of dense crude oil, transport to facilitate suction crude oil.In the present embodiment, aspirate oil system 30 and comprise the first suction oil part extending into oil well and the oily part of the second suction being arranged on storage tank body 10 top.The connection trip of the first suction oil part appoints elbow can be connected fast with the pump hydraulic fluid port of the pumping equipment at well head place, thus realizes being extracted out from oil well by crude oil and being stored in the object in crude oil storage tank.Second suction oil part comprises fixed mount, motor and suction oil submerged pump, and motor and the oily submerged pump of suction are fixed by fixed mount, and aspirate oily submerged pump and adopt 100YZ100-30 type submerged pump, delivery side of pump diameter 100mm, the flow of pump is 100m
3/ h, head of pump is 30m; Motor adopts 7.5kW necessary electromotor.The second oil pumping part is utilized to be extracted out by the crude oil be stored in shoe cream room and be delivered in transport vehicle.
As shown in Figures 2 to 4, storage tank body 10 of the present utility model also comprises base plate 12 and top board 13, and base plate 12, top board 13 form shoe cream room with sidewall 11, and heat-insulation system 20 also comprises insulation bed course 22.The sidewall 11 of the crude oil storage tank of the present embodiment, base plate 12 and top board 13 all adopt large corrugated sheet (steel plate) processing and manufacturing of two-layer high strength, in order to be incubated crude oil after having heated crude oil, therefore, insulation bed course 22 is provided with in sidewall 11, base plate 12 and top board 13.Insulation bed course 22 applies the thick glass silk flosssilk wadding of 10cm, and glass silk flosssilk wadding is clamped between two-layer high-strength corrugated sheet and (is namely provided with in base plate 12, top board 13 and sidewall 11 and is incubated bed course 22), thus prevents the heat loss of crude oil.
In the present embodiment, multiple heating arrangement has been installed in crude oil storage tank, and, multiple heating arrangement 21 is distributed in shoe cream room in the horizontal direction, and (multiple heating arrangement 21 can in uniform same level in the horizontal direction, also can two uniform and adjacent in the horizontal direction heating arrangements 21 relative to base plate 12, there is different height), and between heating arrangement 21 and base plate 12, there is gap.Preferably, heating arrangement 21 has 4.4 heating arrangements 21 all adopt the anti-explosion heating rod of 9kW, and (first heating arrangement 21 and the 3rd heating arrangement 21 are the first heating group to form two groups of uses, second heating arrangement 21 and the 4th heating arrangement 21 are the second heating group), in the process that crude oil is heated, first heating group and the second heating group can start simultaneously heat crude oil, the first heating group and the second heat contents can not start independently and crude oil heated to (when namely the first heating group heats crude oil, the second heating group does not start yet; Or when the second heating group heats crude oil, the first heating group does not start).Further, 4 heating arrangements 21 can independent startup respectively, thus utilizes the combination in any of 4 heating arrangements 21 to heat crude oil.
When utilizing suction oil system 30 to carry out aspirating oily work, for the ease of staff, the crude oil in shoe cream room is observed, thus be provided with two place's inspection doors at the top of storage tank body 10, and the connection for bbreather pipe having installed 8kg at two inspection door places of place is respectively to ventilate in the process of suction oil.
If staff will observe from the inspection door at top the crude oil in shoe cream room, then cat ladder 83 from tank is needed to climb tank top.In order to make staff observe the crude oil in shoe cream room more easily, thus know clearly the liquid level of crude oil in shoe cream room, therefore, crude oil storage tank also comprises the liquidometer 50 for detecting crude oil liquid level in shoe cream room.As shown in Figures 2 to 4, liquidometer 50 comprises floating block 51, pouring weight 52, connection cord 53 and Liquid level scale 54.Floating block 51 is arranged in shoe cream room, and float over (when shoe cream room is built with crude oil) on the liquid level of crude oil all the time, with the height and position of mobile floating block 51 with the change of crude oil liquid level, pouring weight 52 is arranged on outside storage tank body 10, the first end of connection cord 53 is connected with floating block 51, second end of connection cord 53 is connected with pouring weight, and connection cord 53 is stretched between floating block 51 and pouring weight 52, when the height and position of floating block 51 changes with the change of liquid level, the height and position of pouring weight 52 also changes thereupon, and, it is equal with the height distance of floating block 51 movement that pouring weight 52 moves height distance.In the present embodiment, the weight of pouring weight 52 is slightly less than the weight of floating block 51.Such as utilize the first suction oil part of suction oil system 30 to be extracted in crude oil storage tank by crude oil from oil well, along with the increase of crude oil in shoe cream room, liquid level raises, and now the height and position of floating block 51 rises, and the height and position of pouring weight 52 declines simultaneously; Correspondingly, when the crude oil in crude oil storage tank to pump in the process on transport trolley by the second suction oil part of application suction oil system 30, due to floating block 51 along with the decline of liquid level height reduction, now the height and position of pouring weight 52 then raises.In order to more accurately quantize the liquid level change of crude oil in shoe cream room, thus Liquid level scale 54 is arranged on the outside of sidewall 11, and runner is provided with on the end of Liquid level scale 54, connection cord 53 is made to walk around the runner of Liquid level scale 54 end, thus the friction reduced when connection cord 53 moves, and pouring weight 52 is arranged on Liquid level scale 54 movably.Like this, when the height and position of pouring weight 52 changes with the change of liquid level, the fluid level scale shown on Liquid level scale 54 by pouring weight 52, staff just accurately can know the amount of crude oil in shoe cream room, thus the process of control and suck crude oil exactly.
In the possible embodiments that another is not shown, connecting rod is utilized to replace above-mentioned connection cord 53, and one end of Liquid level scale 54 is fixed on top board 13, the other end extends along the direction perpendicular to top board 13 plane, then pouring weight 52 is arranged on Liquid level scale 54 movably, and floating block 51 swims on crude oil liquid level all the time.When floating block 51 raises with crude oil liquid level and rises, pouring weight 52 increases relative to the height of top board 13, and in the same manner, when crude oil liquid level declines, the height of pouring weight 52 declines thereupon.Like this, the level value that staff is indicated on Liquid level scale 54 by pouring weight 52, thus know clearly the crude oil amount in shoe cream room.
After crude oil storage tank employs a period of time, owing to being entrained with silt and other impurity in the crude oil that pumps out from oil well, and these silts and impurity can be deposited in the bottom of crude oil storage tank, therefore, staff needs to carry out necessary cleaning to crude oil storage tank after crude oil storage tank uses a period of time.Conveniently staff enters in crude oil storage tank and carries out cleaning, thus the position of the close side sidewall 11 of top board 13 is provided with roof manhole portion 82, and generally, roof manhole portion 82 closes.Further, be provided with cat ladder 85 in tank in the inner side of the sidewall 11 near roof manhole portion 82, staff enters shoe cream room from roof manhole portion 82, then at the bottom of cat ladder in tank 85 to tank.
Due to staff in crude oil storage tank, carry out cleaning work time, need to ventilate to the air in tank, therefore sidewall 11 is provided with cleaning exhaust outlet 60.Be close and seal in the process that cleaning exhaust outlet 60 uses at crude oil storage tank, after opening and cleaning exhaust outlet 60, staff also directly can enter in shoe cream room by cleaning exhaust outlet 60 always.When clearing up the silt and impurity that are deposited on bottom in crude oil storage tank, the silt of accumulation and impurity can be gone out from the direct spade of cleaning exhaust outlet 60 by staff.
As shown in Figure 4, in order to the sewage discharge of cleaning crude oil storage tank be fallen, thus base plate 12 is provided with cleaning sewage draining exit 70.Cleaning sullage can directly discharge from cleaning sewage draining exit 70 sewage containing silt and impurity.After cleaning, cleaning sewage draining exit 70 blocks by staff again.For cannot the direct spade silt of going out and other impurity, staff directly cleans with water, and is discharged from cleaning sewage draining exit 70 by sewage.Because heating arrangement 21 and the inner side of base plate 12 have gap, like this, heating arrangement 21 can not be formed silt and impurity and stop, silt and impurity can be rinsed totally.
In this application, the bottom-to-top-height of the storage tank body 10 of crude oil storage tank is less than 1.8m (actual height is about 1.7m), therefore when staff works at the top of this crude oil storage tank, do not belong to aloft work, meet the safety requirements of country to outwork personnel, therefore, the edge of tank top without the need to arranging guardrail, thus saves manufacturing cost.The crude oil storage tank of the present embodiment has rational oil storage volume, is 30m
3left and right.
The technical scheme of application the present embodiment, carries out except storage crude oil except applying crude oil storage tank, can also be used to store, transport other liquid substances.
It should be noted that used term is only to describe detailed description of the invention here, and be not intended to the illustrative embodiments of restricted root according to the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative is also intended to comprise plural form, in addition, it is to be further understood that, " comprise " when using term in this manual and/or " comprising " time, it indicates existing characteristics, step, work, device, assembly and/or their combination.
It should be noted that, term " first ", " second " etc. in the specification sheets of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as the embodiment example of the application described herein if with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
For convenience of description, here can usage space relative terms, as " ... on ", " in ... top ", " at ... upper surface ", " above " etc., be used for the spatial relation described as a device shown in the figure or feature and other devices or feature.Should be understood that, space relative terms be intended to comprise except the described in the drawings orientation of device in the different azimuth used or in work.Such as, " in other devices or structure below " or " under other devices or structure " will be positioned as after if the device in accompanying drawing is squeezed, being then described as the device of " above other devices or structure " or " on other devices or structure ".Thus, exemplary term " in ... top " can comprise " in ... top " and " in ... below " two kinds of orientation.This device also can other different modes location (90-degree rotation or be in other orientation), and relatively describe space used here and make respective explanations.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a crude oil storage tank, comprising: storage tank body (10), and described storage tank body (10) has shoe cream room, it is characterized in that, described storage tank body (10) is directly installed on ground, and described crude oil storage tank also comprises:
Heat-insulation system (20), described heat-insulation system (20) is arranged on the tank skin of described storage tank body (10);
Suction oil system (30), the oil absorbing end of described suction oil system (30) puts in the shoe cream room of described storage tank body (10), and the oil outlet end (31) of described suction oil system (30) is arranged on the outside of described storage tank body (10).
2. crude oil storage tank according to claim 1, is characterized in that, described crude oil storage tank also comprises:
Storage tank support portion (40), described storage tank support portion (40) is placed on ground, described storage tank body (10) is arranged on described storage tank support portion (40), and bottom wall outer and the ground of described storage tank body (10) have gap.
3. crude oil storage tank according to claim 1, it is characterized in that, described storage tank body (10) comprises sidewall (11), wherein, sidewall comprises the first side wall and the second sidewall that are oppositely arranged, and described heat-insulation system (20) comprising:
Heating arrangement (21), the first end of described heating arrangement (21) is fixed on described the first side wall, and the second end of described heating arrangement (21) extends towards described second sidewall.
4. crude oil storage tank according to claim 3, it is characterized in that, described storage tank body (10) also comprises base plate (12) and top board (13), described base plate (12), described top board (13) and described sidewall (11) form described shoe cream room, and described heat-insulation system (20) also comprises:
Insulation bed course (22), is provided with described insulation bed course (22) in described sidewall (11), described base plate (12) and described top board (13).
5. crude oil storage tank according to claim 4, it is characterized in that, described heating arrangement (21) is for multiple, described multiple heating arrangement (21) is distributed in described shoe cream room in the horizontal direction, and has gap between described heating arrangement (21) and described base plate (12).
6. crude oil storage tank according to claim 3, is characterized in that, described crude oil storage tank also comprises the liquidometer (50) for detecting crude oil liquid level in described shoe cream room.
7. crude oil storage tank according to claim 6, is characterized in that, described liquidometer (50) comprising:
Floating block (51), is arranged in described shoe cream room;
Pouring weight (52), is arranged on described storage tank body (10) outward;
Connection cord (53), the first end of described connection cord (53) is connected with described floating block (51), second end of described connection cord (53) is connected with described pouring weight (52), and described connection cord (53) is stretched between described floating block (51) and described pouring weight (52).
8. crude oil storage tank according to claim 7, is characterized in that, described liquidometer (50) also comprises:
Liquid level scale (54), described Liquid level scale (54) is arranged on the outside of described sidewall (11), described connection cord (53) walks around the end of described Liquid level scale (54), and described pouring weight (52) is arranged on described Liquid level scale (54) movably.
9. crude oil storage tank according to claim 3, is characterized in that, described sidewall (11) is provided with cleaning exhaust outlet (60).
10. crude oil storage tank according to claim 4, is characterized in that, described base plate (12) is provided with cleaning sewage draining exit (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540406.9U CN205114147U (en) | 2015-07-23 | 2015-07-23 | Crude oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540406.9U CN205114147U (en) | 2015-07-23 | 2015-07-23 | Crude oil storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205114147U true CN205114147U (en) | 2016-03-30 |
Family
ID=55569775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520540406.9U Active CN205114147U (en) | 2015-07-23 | 2015-07-23 | Crude oil storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205114147U (en) |
-
2015
- 2015-07-23 CN CN201520540406.9U patent/CN205114147U/en active Active
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