CN217650062U - Safe and reliable TEAL storage tank connecting nipple - Google Patents

Abstract

A safe and reliable TEAL storage tank connection nipple relates to the technical field of chemical production equipment and solves the technical defects that the existing connection nipple is not thoroughly oil-washed or replaced due to dead angles, residual TEAL can smoke, catch fire or trigger a dry powder spraying system and other accidents when the nipple is disassembled or replaced, the technical scheme comprises a gas-phase nipple and a liquid-phase nipple, the gas-phase nipple comprises a first straight pipe and a first manifold, an opening at the upper end of the first straight pipe is a gas-phase pressurizing port, and an opening at the upper end of the first manifold is a discharge port; the liquid phase short section comprises a second straight pipe and a second manifold, an opening at the upper end of the second straight pipe is a material conveying port, and an opening at the upper end of the second manifold is a flushing port. The utility model discloses connect the nipple joint for being the tee bend tubular structure of nearly Y font structure, inside no dead angle can not remain TEAL and mineral oil, and oil wash and replacement are more thorough, and the dismouting nipple joint or change storage tank are more swift, safety.

Description

Safe and reliable TEAL storage tank connecting nipple

Technical Field

The utility model relates to a chemical production equipment technical field such as polypropylene (INEOS, UNIPOL, JPP, SPG, ST) and polyethylene, more specifically relate to a safe and reliable TEAL storage tank connection nipple joint.

Background

TEAL (i.e. triethylaluminum) can be used as rocket fuel, and is also widely applied to the chemical field, such as polypropylene (INEOS, UNIPOL, JPP, SPG, ST) and polyethylene, and is used as a cocatalyst in polypropylene production. Pure TEAL is colorless liquid, has a melting point of-58 ℃ and a flash point of-52 ℃, has high activity, is explosive when meeting water and is natural when meeting air. Therefore, it is important to secure the supply of TEAL raw material.

At present, a TEAL storage tank is widely used in the chemical industry for storing triethyl aluminum raw materials, and the TEAL storage tank needs to be frequently subjected to oil washing, replacement, storage tank replacement and other operations in the production process. The structure defect of its gaseous phase of current TEAL storage tank and liquid phase connection nipple joint exists the dead angle in the nipple joint, and triethyl aluminium easily accumulates in operation processes such as oil wash, replacement at the dead angle department, leads to that oil wash, replacement are not thorough, and can waste more mineral oil when oil wash. When the short section is disassembled or replaced, once the residual TEAL in the dead angle of the short section contacts with air, smoke and burn due to violent reaction, even a dry powder spraying system of a production field can be triggered or a fire disaster is caused when the fire is serious, so that serious potential safety hazards exist, the time for replacing the storage tank is prolonged, the operation risk is increased, and the normal operation of production is influenced.

Therefore, there is a need for an improved connection sub for an existing TEAL tank to address the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

To sum up, the utility model discloses a connection nipple joint structural design defect of solving current TEAL storage tank, there is the dead angle in the nipple joint, extravagant mineral oil when not only the oil is washed, still can lead to the oil to wash because of the existence at dead angle, the replacement is not thorough, dismantle, change the nipple joint remaining TEAL consuming time easily takes place the smoking, the burning, trigger the dry powder spraying system even or cause the technique of risk such as conflagration not enough, and provide a safe and reliable, ensure the oil wash, under the thorough condition of replacement, practice thrift mineral oil, improve operating safety factor, and do not delay the TEAL storage tank connection nipple joint that the storage tank was changed.

In order to solve the technical problem provided by the utility model, the following technical proposal is adopted.

The utility model provides a safe and reliable TEAL storage tank connection nipple which characterized in that, including:

the gas-phase short section comprises a vertical hollow tubular first straight pipe and a first manifold which is connected to the first straight pipe in an inclined upward manner, and the first straight pipe and the first manifold form a Y-shaped three-way pipe structure; the lower end opening of the first straight pipe is detachably connected to an external port of a gas transmission pipeline of the storage tank, and the upper end opening of the first straight pipe is a gas-phase pressurizing port and is used for inputting gas into the tank to provide back pressure for stored TEAL; the upper end opening of the first manifold is a discharge port for discharging replacement gas, white oil and residual TEAL when the empty tank is disassembled;

the liquid phase short section comprises a vertical hollow tubular second straight pipe and a second manifold which is connected to the second straight pipe in an inclined upward manner, and the second straight pipe and the second manifold form a Y-shaped three-way pipe structure; the lower end opening of the second straight pipe is detachably connected to an external tank connector of a liquid conveying pipeline of the storage tank, and the upper end opening of the second straight pipe is a material conveying opening and used for outputting TEAL to the outside of the tank; and an opening at the upper end of the second manifold is a flushing port for inputting gas or white oil into the tank during tank replacement so as to realize flushing or replacement without dead angles.

Furthermore, the lower ends of the first manifold and the second manifold are respectively connected to the pipe walls at the lower parts of the first straight pipe and the second straight pipe, and the included angle alpha between the first manifold and the second manifold and the axial line at the upper parts of the first straight pipe and the second straight pipe is between 20 and 45 degrees.

Further, the open ends of the gas-phase short section and the liquid-phase short section are detachably connected with the matched pipe fitting through loose sleeve concave-convex flanges.

Furthermore, the loose sleeve concave-convex flanges at the opening ends of the gas-phase short section and the liquid-phase short section are detachably connected with the matched pipe fittings through metal hoses.

Furthermore, the gas-phase short section and the liquid-phase short section are respectively and fixedly connected to the gas transmission pipeline and the outer tank connector of the gas transmission pipeline in an axially symmetric mode that the first manifold and the second manifold correspondingly extend outwards.

Further, the structure, the size of gaseous phase nipple joint and liquid phase nipple joint is the same, and the pipe diameter of gaseous phase nipple joint is greater than the pipe diameter of liquid phase nipple joint.

The utility model has the advantages that:

the connecting short section is divided into a gas-phase short section and a liquid-phase short section, the gas-phase short section and the liquid-phase short section both comprise a straight pipe of a vertical tubular structure and a manifold which is obliquely and upwardly connected to the straight pipe, and the straight pipe and the manifold form a Y-shaped three-way tubular structure. The lower end opening of the straight pipe is detachably connected to the gas transmission of the TEAL storage tank or the tank outer connector of the gas transmission pipeline, so that the straight pipe is kept in a vertical state. Gas or liquid through the gaseous phase pressurization mouth of straight tube or material delivery port business turn over storage tank can smoothly flow in or flow out fast, and the manifold structure that upwards extends can make the liquid that gets into backward flow to the straight tube under the action of gravity, prevent TEAL or mineral oil from storing up in the manifold is inside, make oil wash and replacement more thorough, not only avoided TEAL to store up in connecting the nipple joint, mineral oil's waste when also having avoided oil wash, when guaranteeing dismouting connection nipple joint or change storage tank, can not appear smoking because of remaining TEAL, the burning, or trigger dry powder spraying system, or cause accidents such as conflagration, make the dismouting of connecting the nipple joint and the change operation of storage tank safer, work efficiency is improved, the smooth of production is guaranteed.

Additionally, the utility model discloses the structure of gaseous nipple joint and liquid phase nipple joint is simpler, and the cost of manufacturing is lower relatively, and the two is connected with the mouth of pipe of equipment and is adopted behind the unsmooth flange of loose cover, can solve nipple joint and TEAL jar, and other continuous orificial centering and stress problems, can save and need many people to operate and bulky discharge arm device, and dismouting and use are more convenient, have also reduced the cost that customer purchase and used.

To sum up, the utility model discloses connect nipple joint design benefit, there is not the dead angle in the nipple joint inside, can not store up TEAL or mineral oil for the oil wash and the replacement of TEAL storage tank are more thorough, more oil-saving, and the operation of nipple joint and change storage tank is connected in the dismouting is safer, smooth, high-efficient.

Drawings

Fig. 1 is the utility model discloses connect the nipple joint to install the side perspective structure sketch map on the storage tank.

In the figure: 1. the device comprises a storage tank, 11 gas pipelines, 12 liquid pipelines, 13 loose-sleeve concave-convex flanges, 2 gas short sections, 21 first straight pipes, 22 first manifolds, 23 gas pressure ports, 24 discharge ports, 3 liquid short sections, 31 second straight pipes, 32 second manifolds, 33 material conveying ports and 34 flushing ports.

Detailed Description

The structure of the present invention will be further described with reference to the accompanying drawings and preferred embodiments of the present invention.

Referring to fig. 1, the utility model relates to a safe and reliable's TEAL storage tank connection nipple joint, including gaseous phase nipple joint 2 and liquid phase nipple joint 3 that respectively detachably installs on the outer interface of gas transmission pipeline 11 of TEAL storage tank 1 and liquid transmission pipeline 12.

Specifically, the gas-phase short section 2 comprises a first straight pipe 21 in a vertical hollow tubular shape and a first manifold 22 connected to the first straight pipe 21 in an inclined upward direction, and the first straight pipe 21 and the first manifold form a Y-shaped three-way pipe structure. The lower end opening of the first straight pipe 21 is detachably connected to the tank outer interface of the gas transmission pipeline 11 of the storage tank 1, the upper end opening of the first straight pipe 21 is a gas-phase pressurizing port 23, and the gas-phase pressurizing port 23 is connected with a nitrogen supply system during actual use and used for inputting nitrogen into the storage tank 1 through the gas transmission pipeline 11 so as to press out TEAL liquid stored in the tank. The upper end opening of the first manifold 22 is a vent 24 for venting displaced gas, white oil and residual TEAL when the empty tank is removed.

Specifically, the liquid phase nipple 3 includes a second straight tube 31 in a vertical hollow tubular shape and a second manifold 32 connected to the second straight tube 31 in an inclined upward direction, and the two form a three-way tube structure in a nearly Y shape. The lower end opening of the second straight pipe 31 is detachably connected to the tank outer port of the infusion pipeline 12 of the storage tank 1, and the upper end opening of the second straight pipe 31 is a material conveying port 33, is connected with a catalyst supply system, and is used for outputting triethyl aluminum to the quantitative tank through the infusion pipeline 12. The upper end opening of the second manifold 32 is a flushing port 34 for feeding gas or white oil into the tank during tank replacement to realize flushing or replacement without dead angles.

After the technical scheme is adopted, the utility model discloses following beneficial effect has.

The utility model discloses a connect the nipple joint to divide into gaseous phase nipple joint 2 and liquid phase nipple joint 3, the two straight tube that all includes vertical tubular structure and the manifold of connection on the straight tube in the slant, the straight tube constitutes the tee bend tubular structure of nearly Y font with the manifold. The lower extreme opening detachably of straight tube is connected on the gas transmission of TEAL storage tank 1 or the jar outer joint of infusion pipeline 12, makes things convenient for the dismouting, and can make the straight tube keep vertical state. Gas or liquid entering and exiting the storage tank 1 through the gas-phase pressurizing port 23 or the material conveying port 33 of the straight pipe can smoothly and quickly flow in or out, the structure of the manifold extending upwards can make the entering liquid flow back to the straight pipe under the action of gravity, TEAL or mineral oil is prevented from being accumulated inside the manifold, oil washing and replacement are more thorough, TEAL accumulation in the connection nipple is avoided, waste of mineral oil during oil washing is also avoided, when the connection nipple is disassembled and assembled or the storage tank 1 is replaced, smoke, fire and other abnormalities cannot occur due to residual TEAL, a dry powder spraying system cannot be triggered due to overlarge fire, or accidents such as fire and the like are caused, the disassembly and assembly of the connection nipple and the replacement operation of the storage tank 1 are safer, the working efficiency is improved, and smooth production is ensured.

The technical solution of the present invention for further improving the technical problem proposed by the present invention further includes the following technical features.

Further, referring to fig. 1, the lower ends of the first manifold 22 and the second manifold 32 of the gas-phase pipe nipple 2 and the liquid-phase pipe nipple 3 of the present invention are respectively connected to the pipe walls of the lower portions of the first straight pipe 21 and the second straight pipe 31, and the included angle α between the two and the upper axes of the first straight pipe 21 and the second straight pipe 31 is between 20 ° and 45 °.

The manifold of gaseous nipple joint 2 and liquid phase nipple joint 3 is connected on the straight tube with oblique ascending mode, reduces the contained angle between manifold and straight tube upper portion axis to the at utmost, and 20 ~ 45 contained angles between are most reasonable for liquid in the manifold can flow back to the straight tube in the automatic under the action of gravity, thereby has avoided mineral oil or TEAL to store up in the nipple joint, has further improved the utility model discloses connect the clean degree that nipple joint oil washed or displaced.

Additionally, the utility model discloses gaseous nipple joint 2 and liquid phase nipple joint 3's manifold bottom all is connected on the pipe wall of straight tube lower part, and this kind of structural design can reduce the straight tube from the length to its bottom with the manifold junction to reduce the distance between the jar outer interface of straight tube, manifold junction and gas transmission pipeline 11 or infusion pipeline 12, avoid the oil wash or replace in-process TEAL or mineral oil to store up in the nipple joint lower part, further improved the utility model discloses connect nipple joint oil wash or the clean degree of replacement.

Further, referring to fig. 1, the discharge port 24 and the position of the flushing port 34 on the upper end of the first manifold 22 and the second manifold 32 form a minimum included angle with the positions of the gas phase pressurizing port 23 and the material conveying port 33, so that the thoroughness of replacement and oil washing can be effectively guaranteed when the tank is replaced, and no dead angle and safety of the tank are realized from the practical operation. Once a week, at least 10Kg of white oil can be saved probably by oil washing each time (aiming at a 20 ten thousand ton/year polypropylene device), and the effects of energy saving and consumption reduction are huge.

Further, as shown in figure 1, the utility model discloses a gaseous phase nipple joint 2 and liquid phase nipple joint 3's open end all is connected with matched with pipe fitting detachably through loose unsmooth flange 13 of cover, can solve nipple joint and TEAL jar, and other continuous orificial centering and stress problems can save and need many people to operate and bulky discharge arm device.

The utility model discloses all interfaces of gaseous nipple joint 2 and liquid phase nipple joint 3 are all optimized by conventional screw thread or fixed flange to loose cover flange 13, and then improve the nipple joint and dismantle and change speed, and adopt loose cover flange 13 can avoid TEAL and flange direct contact, avoid debris such as sealing strips that threaded connection seals usefulness to enter into follow-up catalyst volume of advancing system, cause the flow to fluctuate, production such as jam is undulant, avoid the TEAL erosion flange of corrosivity and cause to seal not tight, faults such as leakage.

Furthermore, the utility model discloses the discharge port 24, gaseous phase pressurization mouth 23, the unsmooth flange 13 of the loose cover of washing mouth 34 and material delivery port 33 department on gaseous phase nipple joint 2 and liquid phase nipple joint 3 upper portion all are connected with matched with pipe fitting through metal collapsible tube (not drawn in the figure).

Specifically, a discharge port 24 of the gas-phase short section 2 is connected with a displacement or oil washing pipeline through a metal hose, and a gas-phase pressurizing port 23 of the gas-phase short section 2 is connected with a nitrogen pipeline for pressurizing a tank body through a metal hose; the flushing port 34 of the liquid-phase short section 3 is connected with a pipeline for replacing nitrogen or oil washing through a metal hose, and the material conveying port 33 of the liquid-phase short section 3 is connected with a downstream conveying pipeline through a metal hose.

The utility model discloses gaseous nipple joint 2 and liquid phase nipple joint 3's open end all optimizes to be connected for loose unsmooth flange 13 of cover and complex pipe fitting detachably, has solved nipple joint and TEAL jar, and centering and stress problem when other continuous mouths of pipe are connected can save and need many people to operate and bulky arm device of unloading to replace and solve the effect of local height-adjusting with metal collapsible tube.

Further, refer to fig. 1 and show, during the actual installation, the utility model discloses a gaseous phase nipple joint 2 and liquid phase nipple joint 3 correspond the axisymmetric mode that outwards stretches out with first manifold 22 and second manifold 32 and do not fixed connection on the jar outer joint of gas transmission pipeline 11 and infusion pipeline 12.

The utility model discloses gaseous phase nipple joint 2 and liquid phase nipple joint 3 are installed with the mode of axial symmetry to make manifold one side outwards stretch out, this kind of mounting means is convenient for connect nipple joint and corresponding pipe fitting assembly, and the mutual noninterference makes things convenient for manual operation, is favorable to improving the efficiency of the dismouting of nipple joint, thereby reduces 1 change time of storage tank.

Further, refer to fig. 1 and show, the utility model discloses a gaseous phase nipple joint 2 is all the same with structure, size of liquid phase nipple joint 3, all adopts the thick wall design, and the difference of the two lies in gaseous phase nipple joint 2's pipe diameter and is greater than liquid phase nipple joint 3's pipe diameter. And gaseous phase nipple joint pipe diameter is greater than the liquid phase nipple joint, and aim at pressurizes in time, and the adjustment reaction is swift, and the emission is big during the replacement in addition, and the replacement is more thorough.

The above examples are merely for clarity of description of specific embodiments of the present invention and are not intended to limit the embodiments of the present invention. For those skilled in the art, according to the present invention, other adjustments or changes to the gas phase short section 2, the first straight pipe 21, the first manifold 22, the gas phase pressurizing opening 23, the discharging opening 24, the liquid phase short section 3, the second straight pipe 31, the second manifold 32, the material conveying opening 33, the flushing opening 34, etc. can be deduced and summarized, and are not listed here. Any modification, replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (6)

1. The utility model provides a nipple joint is connected to safe and reliable TEAL storage tank which characterized in that, including:

the gas-phase short section comprises a vertical hollow tubular first straight pipe and a first manifold which is connected to the first straight pipe in an inclined upward manner, and the first straight pipe and the first manifold form a Y-shaped three-way pipe structure; the lower end opening of the first straight pipe is detachably connected to an external tank interface of a gas transmission pipeline of the storage tank, and the upper end opening of the first straight pipe is a gas phase pressurizing port and used for inputting gas into the tank to provide back pressure for stored TEAL; the upper end opening of the first manifold is a discharge port for discharging replacement gas, white oil and residual TEAL when the empty tank is disassembled;

the liquid phase short section comprises a vertical hollow tubular second straight pipe and a second manifold which is connected to the second straight pipe in an inclined upward manner, and the second straight pipe and the second manifold form a Y-shaped tee pipe structure; the lower end opening of the second straight pipe is detachably connected to an external tank interface of a transfusion pipeline of the storage tank, and the upper end opening of the second straight pipe is a material conveying port and used for outputting TEAL to the outside of the tank; and an opening at the upper end of the second manifold is a flushing port for inputting gas or white oil into the tank during tank replacement so as to realize flushing or replacement without dead angles.

2. The safe and reliable TEAL tank nipple of claim 1, wherein the lower ends of said first and second manifolds are connected to the lower walls of said first and second straight pipes, respectively, and the angle α between them and the axis of the upper portions of said first and second straight pipes is between 20 ° and 45 °.

3. The safe and reliable TEAL storage tank connection sub of claim 1, wherein the open ends of the gas phase sub and the liquid phase sub are detachably connected with the matched pipe fittings through loose-sleeve concave-convex flanges.

4. A safe and reliable TEAL tank connector sub according to claim 3, characterized in that the loose-fitting flanges at the open ends of the gas-phase sub and the liquid-phase sub are detachably connected to the mating pipes by metal hoses.

5. The safe and reliable TEAL storage tank connection nipple of claim 1, characterized in that the gas-phase nipple and the liquid-phase nipple are fixedly connected to the gas transmission pipeline and the external connection port of the liquid transmission pipeline respectively in an axisymmetric manner that the first manifold and the second manifold correspondingly extend outwards.

6. The safe and reliable TEAL storage tank connection nipple of claim 1, characterized in that, the structure, size of gaseous phase nipple and liquid phase nipple are the same, and the pipe diameter of gaseous phase nipple is greater than the pipe diameter of liquid phase nipple.

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