CN215997943U - Stirring and blending system of finished oil storage tank - Google Patents

Abstract

The utility model discloses a product oil storage tank stirring and blending system, which comprises a tank body, wherein a spraying and stirring mechanism is arranged in the tank body and is positioned at the center of the bottom of the tank body, the spraying and stirring mechanism is connected with an oil spraying pipe, the oil spraying pipe penetrates out of the tank body and is connected with a circulating pump, the circulating pump is connected with an oil inlet pipe, the outlet end of the oil spraying pipe in the tank body is hermetically arranged, an oil outlet is arranged on the oil spraying pipe close to the outlet end of the oil spraying pipe, a fixed pipeline is vertically connected onto the oil outlet to form a base, the spraying and stirring mechanism comprises a rotary sprayer with a nozzle, the rotary sprayer comprises a cover shell, the cover shell is rotatably arranged at the upper end of the fixed pipeline, at least two nozzles are connected around the cover shell, the nozzle is rotatably connected onto the cover shell, a transmission mechanism capable of being driven by the flow of product oil is arranged in the fixed pipeline, and the cover shell and the nozzles are both connected with the transmission mechanism, the method has the technical characteristics of low failure rate, capability of greatly shortening the blending period of the finished oil, improvement on economic benefit and the like.

Description

Stirring and blending system of finished oil storage tank

Technical Field

The utility model relates to a stirring and blending system, in particular to a stirring and blending system of a product oil tank body, and belongs to the field of petrochemical industry.

Background

The main using methods of the oil blending industry in the blending of various oil products are a fan blade type stirrer, a pipeline static mixer, a wind blending method and the like which are arranged on the wall of a finished oil tank body, the conventional system stirring methods cannot form all-around stirring in the tank body and cannot thoroughly solve the problem of deposit accumulation, so that the deposit is continuously accumulated at the bottom of the tank body, the oil blending time is long, the oil consumption is high, the problems of no layering after long-time storage, unstable oil quality, more tank body occupation and long time can not be solved, the processing cost is improved, the required oil product cannot be provided according to the required speed of the market for the oil product types, the strain capacity of the industry to the market is influenced, and the economic benefit is reduced.

Most of the most commonly used finished oil tank bodies in China at present use the extension-type mechanical stirrer, according to the technical requirements of oil product blending, oil products in the tank bodies need to be uniformly mixed within 3 hours, and the fact that the traditional mechanical stirrer is poor in working effect, not only consumes time for over 3 hours, but also frequently causes safety problems such as sealing point leakage and the like, and influences the safe operation of the finished oil tank body area.

At 30000m³For example, the gasoline tank body is phi 46000 x 20400mm, at least two side-direction-extending-type stirrers are required to be arranged, as shown in fig. 10, a stirrer layout in the prior art is shown, two or three stirrers can be arranged on the tank body according to the size of the tank body, the central line of each stirrer deviates from the central line of the tank by an angle a, the angle a is generally 7-12 degrees, the angle a of each small tank is generally the lower limit, the angle a of each large tank is generally the upper limit, and the angle a of each large tank is generally leftwards, so that the stirrers are concentratedly arranged on the 1/4 circumference of the tank body, so that kinetic energy of the stirrers is better utilized, as shown in fig. 11, the stirrer is a structural schematic diagram (structure of an extending-type mechanical stirrer) of the prior art, the stirrer mainly comprises an explosion-proof motor, a transmission mechanism, a shaft, an impeller, a sealing mechanism, a support and the like, and the stirrer can be assembled before leaving factory, and the site only the flange reserved on the pipe wall is required to be connected through a bolt and a nut gasket, the fixed angle of this agitator installation, its axle only rotate and do not swing, but the mobile state of oil under this kind of agitator operating condition is fixed unchangeable, and the dead angle region is great, and oil mediation is long consuming time, seriously restricts jar body 1 turnover, and in the long-term work of agitator, sealing mechanism appears leaking easily moreover, influences oil mediation speed, also threatens the safe operation in finished product oil tank body district.

In view of the above-mentioned disadvantages of the prior art: 1. the traditional stretching-in mechanical stirrer is installed at a fixed angle, the shaft of the traditional stretching-in mechanical stirrer only rotates but does not swing, the flowing state of oil products is fixed and unchanged under the working state of the stirrer, and the dead angle area is larger. The oil product blending consumes long time, and the tank body turnover is seriously restricted. 2. Conventional mechanical agitators are prone to leakage from the sealing mechanism as operating time increases. In particular, the oil leakage problem is serious during operation, and the safe operation of the finished oil tank body area is influenced. 3. When the traditional stirrer breaks down and needs to be treated, the traditional stirrer needs to be manually cleaned, and a large amount of manpower and material resources are wasted.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the finished oil tank body stirring and blending system which has the technical characteristics of replacing the traditional mechanical stirring in an oil product blending process, having low failure rate, greatly shortening the blending period of the finished oil, improving the economic benefit and the like.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a stirring and blending system of a finished oil tank comprises a tank body, wherein a spraying and stirring mechanism is arranged in the tank body and is positioned at the center of the bottom of the tank body, the spraying and stirring mechanism is connected with an oil spraying pipe, the oil spraying pipe penetrates out of the tank body and is connected with a circulating pump, the circulating pump is connected with an oil inlet pipe, the outlet end of the oil spraying pipe positioned in the tank body is sealed, an oil outlet is arranged on the oil spraying pipe close to the outlet end of the oil spraying pipe, a fixed pipeline is vertically connected onto the oil outlet to form a base, the spraying and stirring mechanism comprises a rotary sprayer with a nozzle, the rotary sprayer comprises a cover, the cover is rotatably arranged at the upper end of the fixed pipeline and is at least connected with two nozzles around the cover, the nozzle is rotatably connected onto the cover, and a transmission mechanism capable of being driven by the flow of finished oil is arranged in the fixed pipeline, the housing and the nozzle are connected with the transmission mechanism to be linked.

Preferably, the transmission mechanism comprises a connecting sheet, one end of the connecting sheet is connected to the inner wall of the fixed pipeline, the other end of the connecting sheet is connected with a first shaft sleeve which is vertically arranged, the upper end of the first shaft sleeve is sealed, a first worm is rotatably installed in the first shaft sleeve through a first bearing, the lower end of the first worm extends out of the first shaft sleeve, an impeller is sleeved at the lower end of the first worm, the spiral teeth of the first worm are close to the upper end of the first worm, a second shaft sleeve is connected to the first shaft sleeve in a perpendicular mode, an outer shell with a cavity is connected to the outer wall of the fixed pipeline, the second shaft sleeve communicates the first shaft sleeve and the outer shell, a second worm is rotatably connected in the second shaft sleeve through a second bearing, a first gear is sleeved at the left end of the second worm, and the first gear is meshed with the spiral teeth of the first worm to form a worm gear structure, the utility model discloses a nozzle pipe, including the casing, the casing is worn out to the nozzle pipe level and is buckled and be formed with the kink, the nozzle cover is established on the kink, the spiral tooth of No. two worms is close to No. two worm right-hand members, the meshing of the spiral tooth of No. two gears and No. two worms constitutes the worm gear structure, through the rotatable bobbin that is connected with of No. four bearings in the fixed pipeline, encircle the bobbin lower extreme is equipped with No. four gears, No. three gears and No. four gear engagement are with the transmission, the bobbin upper end is equipped with a conical gear, the meshing has a plurality of No. two conical gears on the conical gear, every No. two conical gear cup joints on a nozzle pipe, the nozzle pipe level is worn out the casing and is buckled and is formed with the kink, the nozzle cover is established on the kink.

Preferably, the number of the nozzle pipelines is two, the two nozzle pipelines are symmetrically arranged on the housing, the housing is provided with a mounting hole, the nozzle pipelines are rotatably arranged on the mounting hole through a fifth bearing, the nozzle is a conical body, and the diameter of the opening of the nozzle is smaller than that of the nozzle pipeline.

Preferably, the pipe barrel extends into a housing, a first flange is sleeved on the pipe barrel and close to the upper end of the pipe barrel, the housing is sleeved at the upper end of a fixed pipe barrel and is fixedly connected with the first flange through a screw, the first flange is fixedly connected with a fixed pipeline through a screw, a second flange is connected to the lower end of the fixed pipeline, the oil outlet is connected with a third flange, and the second flange and the third flange are fixedly connected through screws.

Preferably, still include a plurality of connecting pieces, the connecting piece is vertical to be connected in jar body bottom, the oil spout pipe is connected at the connecting piece top.

Preferably, the oil injection pipe is connected with a return line with a stop valve.

Preferably, the oil injection pipe is connected with an external pipeline with a stop valve.

Preferably, the oil inlet pipe is communicated with the tank body, and the oil injection pipe, the circulating pump and the oil inlet pipe form a circulating pipeline.

Preferably, the first shaft sleeve and the second shaft sleeve are integrally formed, at least two connecting pieces are arranged, and the connecting pieces are connected around the outer wall of the first shaft sleeve; the first conical gear and the fourth gear are integrally formed with the pipe barrel.

Preferably, the impeller is adjacent to the fixed pipe lower port.

Has the advantages that: 1. in the finished oil conveying link, the tank bottom sediment can be more fully stirred, dispersed and dissolved, the problem of the sediment in the tank body 1 is solved, and effective components are recovered.

2. In the blending process of the product oil production, two or more oil products and oil product additives can be mixed and stirred uniformly and efficiently, blending can be completed at one time or free operation can be performed according to production requirements and processes, blending is more uniform and sufficient, blending speed is higher, and the utilization rate of the product oil tank body 1 is greatly improved.

3. Compared with the traditional stirrer, the mechanical stirrer has the advantages of simple construction design, safety, environmental protection and capability of effectively avoiding the problem that the sealing point of the traditional mechanical stirrer is easy to leak, thereby greatly improving the economic benefit.

Drawings

FIG. 1 is a partial cross-sectional view of the jet agitation mechanism of the present invention.

Fig. 2 is a schematic structural diagram of the jet stirring mechanism of the utility model.

Fig. 3 is an enlarged view of the present invention at a.

Fig. 4 is a schematic diagram of the transmission structure of the utility model.

Fig. 5 is a partial structural schematic diagram of the present invention.

Fig. 6 is a sectional view of a portion of the structure of fig. 5 in accordance with the present invention.

Fig. 7 is a schematic diagram of the system structure of the utility model.

Fig. 8 is a schematic view of the connection of the oil spray pipe and the connecting piece.

FIG. 9 is a schematic view of the connection between the first shaft sleeve and the second shaft sleeve.

Fig. 10 is a diagram of a prior art agitator arrangement.

FIG. 11 is a schematic view of a prior art agitator configuration.

Detailed Description

The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following examples.

As shown in fig. 1-9, a specific embodiment of a stirring and blending system for a product oil tank is provided, which includes a tank 1, a jet stirring mechanism is installed in the tank 1 and located at the center of the bottom of the tank 1, the jet stirring mechanism is connected to a fuel injection pipe 2, the fuel injection pipe 2 penetrates out of the tank 1 and is connected to a circulating pump 3, the circulating pump 3 is connected to an oil inlet pipe 4, an outlet end of the fuel injection pipe 2 located in the tank 1 is sealed, an oil outlet is formed on the fuel injection pipe 2 near the outlet end of the fuel injection pipe 2, the oil outlet is vertically connected to a fixed pipeline 5 to form a base, the jet stirring mechanism includes a rotary injector 6 with a nozzle 7, the rotary injector 6 includes a housing 8, and the housing 8 is rotatably disposed at the upper end of the fixed pipeline 5, at least two nozzles 7 are connected around the housing 8, the nozzles 7 are rotatably connected to the housing 8, a transmission mechanism capable of being driven by the flow of the product oil is installed in the fixed pipeline 5, and the housing 8 and the nozzles 7 are both connected with the transmission mechanism for linkage;

the transmission mechanism comprises a connecting piece 9, one end of the connecting piece 9 is connected to the inner wall of the fixed pipeline 5, the other end of the connecting piece 9 is connected with a first shaft sleeve 10 which is vertically arranged, the upper end of the first shaft sleeve 10 is sealed, a first worm 15 is rotatably installed in the first shaft sleeve 10 through a first bearing 11, the lower end of the first worm 15 extends out of the first shaft sleeve 10, an impeller 12 is sleeved at the lower end of the first worm 15, spiral teeth of the first worm 15 are close to the upper end of the first worm 15, a second shaft sleeve 13 is connected to the first shaft sleeve 10 in a perpendicular mode, an outer shell 14 with a cavity is connected to the outer wall of the fixed pipeline 5, the second shaft sleeve 13 communicates the first shaft sleeve 10 and the outer shell 14, a second worm 20 is rotatably connected in the second shaft sleeve 13 through a second bearing 16, a first gear 18 is sleeved at the left end of the second worm 20, the first gear 18 is meshed with spiral teeth of the first worm 15 to form a worm and gear structure, a rotating shaft 17 is rotatably mounted in the outer shell 14 through a third bearing 19, a second gear 22 and a third gear 21 are sleeved on the rotating shaft 17, spiral teeth of the second worm 20 are close to the right end of the second worm 20, the second gear 22 is meshed with spiral teeth of the second worm 20 to form the worm and gear structure, a pipe barrel 24 is rotatably connected in the fixed pipeline 5 through a fourth bearing 23 and surrounds the lower end of the pipe barrel 24 to form a fourth gear 25, the third gear 21 is meshed with the fourth gear 25 to transmit, a first conical gear 26 is arranged at the upper end of the pipe barrel 24, a plurality of second conical gears 27 are meshed on the first conical gear 26, each second conical gear 27 is sleeved on a nozzle pipeline 28, and the nozzle pipeline 28 horizontally penetrates through the outer shell 8 and is bent to form a bent part, the nozzle 7 is sleeved on the bending part.

The operation process is as follows: starting the circulating pump 3, the circulating pump 3 pressurizes the product oil in the tank 1 and sprays out from the oil spraying pipe 2, when the product oil entering the oil spraying pipe 2 rapidly enters the fixed pipeline 5, the impeller 12 is pushed to rotate, for example, the impeller 12 rotates clockwise, the impeller 12 drives the first worm 15 to rotate clockwise, the helical teeth at the upper end of the first worm 15 drive the first gear 18 on the second worm 20 to rotate anticlockwise (the anticlockwise rotation of the first gear 18 is assumed, because the helical direction of the helical teeth at the upper end of the first worm 15 is not explained), the first gear 18 drives the second worm 20 to rotate anticlockwise, the helical teeth of the second worm 20 drive the second gear 22 to rotate clockwise (the clockwise rotation of the second gear 22 is also assumed, because the helical direction of the helical teeth of the second worm 20 is not explained), the second gear 22 drives the rotating shaft 17 and the third gear 21 on the rotating shaft 17 to rotate clockwise, the third gear 21 rotates clockwise to drive the fourth gear 25 to rotate anticlockwise, the fourth gear 25 rotates anticlockwise to drive the pipe barrel 24 to rotate synchronously, as the barrel 24 rotates counterclockwise, the first bevel gear 26 on the barrel 24 also rotates counterclockwise, under the drive of the first conical gear 26, the second conical gear 27 rotates clockwise, the second conical gear 27 drives the nozzle pipeline 28 to rotate clockwise, since the nozzle pipe 28 horizontally penetrates the housing 8 and is bent to form a bent portion, the nozzle 7 is fitted over the bent portion, the nozzle 7 thus has a circling motion, in which case the cover 8 rotates through 360 degrees, and at the same time as the cover 8 rotates through 360 degrees, the nozzle 7 also rotates around, consequently can more fully stir dispersion, dissolve tank bottoms deposit, solve the problem of the 1 deposit of the jar body, retrieve the active ingredient, in the actual process: can will advance oil pipe 4 and connect on the oil and the oil additive of other kinds, can realize stirring it with the mixing of the interior finished product oil of jar body 1, once only accomplish the blending or according to production demand and the free operation of technology, the blending is more even abundant, and the blending speed is faster, has improved the utilization ratio of the finished product oil jar body 1 greatly, and inside no motor drive, the stability in use is high, avoids motor failure, carries out the clearance maintenance of the whole jar of body 1.

Preferably, the number of the nozzle pipelines 28 is two, the two nozzle pipelines are symmetrically arranged on the housing 8, the housing 8 is provided with a mounting hole, the nozzle pipelines 28 are rotatably arranged on the mounting hole through a fifth bearing 29, the nozzle 7 is a conical body, the opening diameter of the nozzle 7 is smaller than that of the nozzle pipelines 28, pressurized injection can be further performed, the two nozzle pipelines can meet basic requirements, and the number of the nozzle pipelines 28 can be increased according to actual requirements.

Preferably, the pipe barrel 24 extends into the housing 8, a first flange 30 is sleeved on the pipe barrel 24 and close to the upper end of the pipe barrel 24, the housing 8 is sleeved at the upper end of the fixed pipe barrel 5 and is fixedly connected with the first flange 30 through screws, the first flange 30 is further fixedly connected with the fixed pipeline 5 through screws, the lower end of the fixed pipeline 5 is connected with a second flange 31, the oil outlet is connected with a third flange 32, and the second flange 31 and the third flange 32 are fixedly connected through screws, so that the structure is stable and the practicability is high.

Preferably, still include a plurality of connecting piece 33, connecting piece 33 is vertical to be connected in jar 1 bottom, spout oil pipe 2 and connect at the connecting piece 33 top, avoid spouting oil pipe 2 and jar 1 bottom part accumulation deposit.

Preferably, the oil injection pipe 2 is connected with a return line with a stop valve, so that actual production and operation are facilitated.

Preferably, the oil injection pipe 2 is connected with an external pipeline with a stop valve, so that actual production and operation are facilitated.

Preferably, the oil inlet pipe 4 is communicated with the tank body 1, the oil spraying pipe 2, the circulating pump 3 and the oil inlet pipe 4 form a circulating pipeline, and the product oil in the tank body 1 is used for spraying and stirring without being connected with external oil products, so that the method is convenient and rapid, and does not pollute the product oil in the tank body 1.

Preferably, the first shaft sleeve 10 and the second shaft sleeve 13 are integrally formed, at least two connecting pieces 9 are arranged, and the connecting pieces 9 are connected around the outer wall of the first shaft sleeve 10; the first conical gear 26 and the fourth gear 25 are integrally formed with the pipe barrel 24, so that the structure is firm, and the service life is long.

Preferably, the impeller 12 is located near the lower end of the fixed pipe 5.

Improved jet stirring mechanism: an improved jet stirring mechanism (figure 7) is arranged in each tank body 1, oil products pressurized and output by a finished oil transfer pump (a circulating pump 3) are supplied to an impeller 12 to form rotation, the rotation force and the oil products pressurized and output are transmitted to a nozzle 7, the nozzle 7 is driven by a series of drives in a drive box completely isolated in structure, the jet stirring mechanism is arranged at the center of the bottom of an oil storage tank and can rotate in a three-dimensional space, a housing 8 vertically rotates for 360 degrees, the nozzle 7 also rotates for 360 degrees, the movement tracks are not overlapped, the jet stirring full coverage of the three-dimensional space in the tank body 1 (the tank body 1) is formed, the requirement of fully mixing and homogenizing the oil products in the tank body 1 is met, and the flow control of a stirring system is realized by selecting nozzles with different calibers.

The oil is sprayed at a high speed through the nozzle 7 during the operation of the spraying and stirring mechanism, the sediment is stirred and dissolved, and meanwhile, the oil in the tank is convected through the spraying flow, so that the all-round stirring effect is realized. However, if the nozzle 7 is rotated too fast, the impact on the deposit and the stirring effect are reduced.

Technical requirements

1. The strength calculation, the structural design, the manufacture and the inspection of the jet stirring mechanism are carried out according to the requirements of GB 150.1-150.4-2011. The jet stirring mechanism is convenient to install, the matched installation support is firm, and the operation and installation of the stirrer do not influence the strength and the structure of the oil tank.

2. The technical requirements of raw materials, processing and manufacturing of the jet stirring mechanism and the like meet corresponding standard regulations (table 1).

TABLE 1 technical parameters of the jet stirring mechanism

3. The jet power is provided by the product oil transfer pump outside the tank, the pump applies pressure to generate jet force of the medium, the jet stirring mechanism rotates the jet flow to generate a jet sweeping energy, the oil at the bottom of the oil tank is stirred and mixed into the upper part, the purposes of stirring and blending the oil are achieved, no dead angle is blended, and the purposes of safety, high efficiency, energy saving and environmental protection are achieved.

4. The jet flow generated by the nozzle of the jet stirring mechanism can be sprayed and kinetic energy can be provided for a turbine (or impeller) blade positioned at the inflow inlet of the stirrer, so that a rotating shaft attached to a blade can rotate along with the rotating shaft, and a gear mechanism in the stirrer is driven to drive a movable part of the stirrer and the nozzle to rotate together, so that the jet flow slowly moves in the oil tank along the circumference, and a strong vortex effect is formed in the moving process to generate a homogenization effect on oil.

5. The jet stirring mechanism is driven by an impeller, the worm gear and worm are in a speed change type, and the ratio of the total driving energy to the energy loss of the rotary jet stirring is more than or equal to 8000: 1. The jet stirring mechanism operates and mixes the oil product to achieve the functions of homogenizing, stirring and dispersing the reduced oil product deposit and assisting the cleaning of the tank body 1 within 3 hours (after the mixing is finished, the sampling at any position in the tank body 1 can achieve the density difference less than or equal to 1 thousandth).

6. The jet stirring mechanism can rotate in a three-dimensional space, the jet stirring mechanism vertically rotates for 360 degrees, the nozzle vertically rotates for 360 degrees around the jet stirring mechanism, the motion tracks are required to be not overlapped, the three-dimensional space in the tank body 1 is formed to be fully covered by jet stirring, and the requirement of fully mixing and homogenizing oil in the tank body 1 is met.

7. The effective stirring distance of the jet stirring mechanism is not less than the radius of the tank body 1, and the tail end flow velocity is not less than 0.32 m/s.

8. When the jet stirring mechanism is installed, the jet stirring mechanism is prevented from colliding with other in-tank facilities such as a floating plate supporting leg and a drain pipe in the tank. When the device is operated, the rotary jet stirrer is started to work after the lowest blending liquid level is reached, and the situation that the accessories in the tank body 1 are influenced by jet impact is avoided.

9、30000m³The radius of the finished gasoline tank body 1 (tank body 1) is 23m, the designed maximum storage liquid level is 18.6m, the closest part of the tank wall is 23m, and the tail end flow velocity is 0.32 m/s; the farthest position was 28m, and the flow rate at the tip was 0.34 m/s.

The implementation steps are as follows:

1. the original pipelines of the product oil tank body 1 and the return tank of the transfer pump are replaced and cleaned, all pipelines are isolated by blind plates, and the gas in the limited space is qualified through analysis.

2. And (5) removing the original stretching-in type mechanical stirrer.

3. The original mechanical stirrer mounting opening of the tank body 1 is plugged by utilizing a prefabricated plugging piece.

4. An opening of the spraying and stirring mechanism is additionally arranged on a first circle of wall plate of the pipe wall of the tank body 1 to be reformed, and the improved spraying and stirring mechanism is installed. And a pipeline entering the jet stirring mechanism is additionally arranged on a return tank pipeline of a finished oil transfer pump (a circulating pump 3).

5, construction requirements are as follows: the sizes of the welding corners of the lap welding seam and the fillet welding seam are equal to the thickness of a thin piece, and continuous welding is needed. The flange welding is as specified in the corresponding flange standard. Splicing the pipes by adopting a butt joint mode of argon arc welding backing, executing according to NB/T47013 after welding is finished, and ensuring that the grade III is qualified and the technical grade is not lower than the grade AB. Thirdly, magnetic powder detection is carried out on the surface of the machined groove, the detection standard is executed according to NB/T47013, and the grade I is qualified. Preheating the opening connecting pipe and the primary welding bead of the tank wall plate to more than 100 ℃ before welding, carrying out penetration detection on the primary welding bead, executing the detection standard according to NB/T47013, and enabling the I-grade to be qualified. Fifthly, the sealing surface of the flange of the perforated connecting pipe is smooth and free from welding beading and scratches, the sealing surface of the flange is perpendicular to the axis of the connecting pipe, the inclination is not more than 1 percent of the outer diameter of the flange and not more than 3mm, and bolt holes of the flange are uniformly distributed across the center. Sixthly, the reinforcing ring is manufactured according to JB/T4736-2002, and the reinforcing ring for the opening of the tank wall is manufactured by adopting a whole plate and cannot be spliced; the curvature of the reinforcing plate is consistent with that of the tank body. After the reinforcing ring experiment is finished, the signal is empty and the cylindrical pipe plug is applied to seal. And after the reinforcing ring is welded, 0.2MPa of compressed air is injected into the signal hole of the reinforcing ring, the tightness of the welding line is checked, and no leakage is qualified. The distance between the opening connecting pipe or the edge of the reinforcing ring and the center line of the longitudinal weld seam of the tank wall conforms to the specification of No. 10.2.6 of GB 50341-2014. Eighthly, welding the support base plate before water testing, wherein the welding position of the support base plate is staggered with the welding seam of the tank bottom plate by more than 300 mm; and (3) after the test water sedimentation of the oil tank is qualified, installing the pipeline and the bracket of the rotary injection system, and adjusting the height of the bracket according to the actual gradient on site to keep the pipeline horizontal when the pipeline in the tank is installed. And ninthly, after the pipeline and the support are installed qualified, corrosion prevention is carried out according to the requirements of the drawing.

3.6 after the construction is finished, the system is flushed, replaced and airtight, and the system is put into use after the leakage is confirmed.

3.7 effect verification. After the improved product oil tank body 1 stirring system is put into use, a gasoline blending experiment is carried out by using the T0911 tank, the results are shown in the table 2, the sampling density difference of the upper position, the middle position and the lower position in the tank body 1 is less than or equal to 1 thousandth, and the effect is good.

TABLE 2 oil blending analysis (rotating jet mixer for 2 hours)

1. In the finished oil conveying link, the tank body 1 using the stirring system can more fully stir and disperse and dissolve the sediments at the bottom of the tank, solve the problem of the sediments at the tank body 1 and recover the effective components.

2. In the blending process of the finished oil production, two or more oil products and oil product additives can be mixed and stirred more efficiently, and blending can be completed at one time or free operation can be performed according to production requirements and processes. The blending is more uniform and sufficient, the blending speed is higher, and the utilization rate of the product oil tank body 1 is greatly improved.

3. Compared with the traditional stirrer, the improved stirring system of the finished oil tank is simple in construction design, easy to maintain, not easy to wear, safe and environment-friendly. The shaft sealing part is not arranged, so that the problem that the sealing point of the traditional mechanical stirrer is easy to leak is effectively solved, and the economic benefit is greatly improved.

4. The improved main body part of the product oil stirring and blending system is arranged in the tank, so that the operation noise is low, and the environment is not influenced.

Finally, it should be noted that the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the utility model.

Claims (6)

1. The utility model provides a product oil storage tank stirring blending system, includes jar body (1), its characterized in that: the tank is characterized in that a jet stirring mechanism is installed in the tank body (1) and is positioned at the center of the bottom of the tank body (1), the jet stirring mechanism is connected with a fuel injection pipe (2), the fuel injection pipe (2) penetrates out of the tank body (1) and is connected with a circulating pump (3), the circulating pump (3) is connected with a fuel inlet pipe (4), the outlet end of the fuel injection pipe (2) in the tank body (1) is hermetically arranged, a fuel outlet is formed in the fuel injection pipe (2) close to the outlet end of the fuel injection pipe (2), a fixed pipeline (5) is vertically connected to the fuel outlet to form a base, the jet stirring mechanism comprises a rotary ejector (6) with nozzles (7), the rotary ejector (6) comprises a housing (8), the housing (8) is rotatably arranged at the upper end of the fixed pipeline (5), and at least two nozzles (7) are connected around the housing (8), the nozzle (7) is rotatably connected to the housing (8), a transmission mechanism capable of being driven by the flow of the product oil is installed in the fixed pipeline (5), and the housing (8) and the nozzle (7) are connected with the transmission mechanism to be linked;

the oil injection pipe is characterized by further comprising a plurality of connecting pieces (33), wherein the connecting pieces (33) are vertically connected to the bottom of the tank body (1), and the oil injection pipe (2) is connected to the tops of the connecting pieces (33); the oil injection pipe (2) is connected with a return pipeline with a stop valve; the oil injection pipe (2) is connected with an external pipeline with a stop valve; the oil inlet pipe (4) is communicated with the tank body (1), and the oil spraying pipe (2), the circulating pump (3) and the oil inlet pipe (4) form a circulating pipeline.

2. The product oil storage tank blending and blending system of claim 1, wherein: the transmission mechanism comprises a connecting piece (9), one end of the connecting piece (9) is connected to the inner wall of the fixed pipeline (5), the other end of the connecting piece (9) is connected with a first shaft sleeve (10) which is vertically arranged, the upper end of the first shaft sleeve (10) is sealed, a first worm (15) is rotatably arranged in the first shaft sleeve (10) through a first bearing (11), the lower end of the first worm (15) extends out of the first shaft sleeve (10), an impeller (12) is sleeved at the lower end of the first worm (15), spiral teeth of the first worm (15) are close to the upper end of the first worm (15) and are perpendicular to the first shaft sleeve (10) to be connected with a second shaft sleeve (13), the outer wall of the fixed pipeline (5) is connected with an outer shell (14) with a cavity, and the second shaft sleeve (13) communicates the first shaft sleeve (10) with the outer shell (14), a second worm (20) is rotatably connected in the second shaft sleeve (13) through a second bearing (16), a first gear (18) is sleeved at the left end of the second worm (20), the first gear (18) is meshed with the spiral teeth of the first worm (15) to form a worm gear structure, a rotating shaft (17) is rotatably installed in the outer shell (14) through a third bearing (19), the rotating shaft (17) is sleeved with a second gear (22) and a third gear (21), the spiral teeth of the second worm (20) are close to the right end of the second worm (20), the second gear (22) is meshed with the spiral teeth of the second worm (20) to form the worm gear structure, a pipe barrel (24) is rotatably connected in the fixed pipeline (5) through a fourth bearing (23), and a fourth gear (25) is arranged around the lower end of the pipe barrel (24), no. three gear (21) and No. four gear (25) meshing are with the transmission, barrel (24) upper end is equipped with conical gear (26) No. one, conical gear (26) go up the meshing have a plurality of conical gear (27) No. two, every conical gear (27) No. two cup joint on a nozzle pipeline (28), nozzle pipeline (28) level is worn out housing (8) and is buckled and be formed with the kink, nozzle (7) cover is established on the kink.

3. The product oil storage tank blending and blending system of claim 2, wherein: the nozzle pipeline (28) have two, and its symmetry sets up on housing (8), the mounting hole has been seted up on housing (8), nozzle pipeline (28) are rotatable to be established on the dress hole through No. five bearing (29), nozzle (7) are the cone, nozzle (7) opening diameter is less than the diameter of nozzle pipeline (28).

4. The product oil tank blending system of claim 2 or 3, wherein: the oil-out pipe is characterized in that the pipe barrel (24) extends into the housing (8), a first flange (30) is sleeved on the pipe barrel (24) and close to the upper end of the pipe barrel (24), the housing (8) is sleeved at the upper end of the fixed pipeline (5) and is fixedly connected with the first flange (30) through screws, the first flange (30) is fixedly connected with the fixed pipeline (5) through screws, the lower end of the fixed pipeline (5) is connected with a second flange (31), the oil outlet is connected with a third flange (32), and the second flange (31) and the third flange (32) are fixedly connected through screws.

5. The product oil storage tank blending and blending system of claim 2, wherein: the first shaft sleeve (10) and the second shaft sleeve (13) are integrally formed, at least two connecting pieces (9) are arranged, and the connecting pieces (9) are connected around the outer wall of the first shaft sleeve (10); the first conical gear (26) and the fourth gear (25) are integrally formed with the pipe barrel (24).

6. The product oil storage tank blending and blending system of claim 2, wherein: the impeller (12) is close to the lower port of the fixed pipeline (5).

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