阅读说明：本技术 一种带倾角及混合切口的化学药剂稀释注入件 (Take inclination and mix notched chemical agent and dilute injection member ) 是由 董志恒 张建勇 劳景水 李雪梅 李学强 吉晓瑜 张立 黄艳 罗军 曹岩辉 黄振东 于 2020-07-25 设计创作，主要内容包括：本发明公开了一种带倾角及混合切口的化学药剂稀释注入件,包括配对法兰、连接短管、紧凑阀组、注入短管、盲板法兰和混合切口,所述配对法兰依次与连接短管、紧凑阀组及注入短管相连接,所述注入短管穿过盲板法兰从主管侧壁上的开孔插入到主管的中心位置,所述注入短管的管口末端斜切成60度的倾斜角,所述倾斜角上设有混合切口。本发明可作为化学药剂注入系统的终端,具有制作简单、不易堵塞、适应工况多等特点,使药剂与介质快速溶合,提高了化学药剂的效率。(The invention discloses a chemical agent dilution injection member with an inclination angle and a mixing notch, which comprises a mating flange, a short connecting pipe, a compact valve group, a short injection pipe, a blind flange and a mixing notch, wherein the mating flange is sequentially connected with the short connecting pipe, the compact valve group and the short injection pipe, the short injection pipe penetrates through the blind flange and is inserted into the center of a main pipe from an opening on the side wall of the main pipe, the tail end of a pipe orifice of the short injection pipe is obliquely cut into an inclination angle of 60 degrees, and the mixing notch is arranged on the inclination angle. The invention can be used as a terminal of a chemical agent injection system, has the characteristics of simple manufacture, difficult blockage, multiple working conditions adaptation and the like, enables the agent and the medium to be quickly mixed, and improves the efficiency of the chemical agent.)

1. The utility model provides a take inclination and mix notched chemical agent and dilute injection member which characterized in that: including companion flange (1), junction pipe (2), compact valves (3), injection nozzle stub (4), blind flange (5) and mix incision (6), companion flange (1) is connected with junction pipe (2), compact valves (3) and injection nozzle stub (4) in proper order, injection nozzle stub (4) pass blind flange (5) and insert the central point that is responsible for (7) from the trompil that is responsible for on (7) lateral wall and put, the mouth of pipe end oblique cutting that injects nozzle stub (4) becomes the angle of inclination of 60 degrees, be equipped with on the angle of inclination and mix incision (6).

2. The chemical dilution injector with tilt and mix cutouts of claim 1, wherein: the mixed cuts (6) are small holes which are uniformly distributed in the longitudinal direction.

3. The chemical dilution injector with inclination and mixing notch according to claim 1 or 2, wherein: the length of the mixing cut (6) is fully distributed on the pipe orifice with the whole inclination angle of 60 degrees, and the width is 2-4 mm.

4. The chemical dilution injector with tilt and mix cutouts of claim 1, wherein: the length of the short connecting pipe (2) is 100 mm.

5. The chemical dilution injector with tilt and mix cutouts of claim 1, wherein: and a one-way valve and a manual ball valve are arranged in the compact valve group (3).

6. The chemical dilution injector with tilt and mix cutouts of claim 1, wherein: and a gasket (8) and a main pipe flange (9) are also arranged between the blind flange (5) and the main pipe (7).

Technical Field

The invention relates to the field of petrochemical industry, in particular to a chemical agent dilution injection part with an inclination angle and a mixed notch.

Background

The chemical agents commonly used in oil and gas field development and production are divided into: corrosion inhibitors, demulsifiers, scale inhibitors, defoaming agents, water clarifiers and the like. The CHEMICAL INJECTION system (CHEMICAL INJECTION) is used for injecting CHEMICALs of types required by a production system into corresponding pipelines to play roles in slowing down corrosion, breaking emulsification, preventing scaling, eliminating foam, killing bacteria and the like, generally comprises a CHEMICAL storage tank, a CHEMICAL pump, a flowmeter, an INJECTION pipeline and the like, can provide continuous and reliable protection for equipment and pipelines, and can improve the treatment effect of media.

At present, the medicament is generally directly injected through the open pore of the pipe wall of the main pipe, the medicament is contacted with the side surface of the medium and cannot be rapidly and uniformly dispersed in the medium, the mixing effect of the medicament and the medium is not ideal enough, the acting time of the medicament is reduced, and the using amount of the medicament is increased to a certain extent.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides the chemical agent dilution injection member with the inclination angle and the mixing notch, which can be used as a terminal of a chemical agent injection system, has the characteristics of simple manufacture, difficult blockage, multiple working conditions and the like, enables the agent and the medium to be quickly mixed, and improves the efficiency of the chemical agent.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a take inclination and mix notched chemical agent and dilute injection member, includes companion flange, junction tube, compact valves, pours into nozzle stub, blind flange and mixes the incision into, companion flange is connected with junction tube, compact valves and pours into the nozzle stub into in proper order, it inserts the central point that is responsible for from the trompil on being responsible for the lateral wall to pour into the nozzle stub into the blind flange and puts, the mouth of pipe end oblique cutting that pours into the nozzle stub into becomes 60 degrees angles of inclination, be equipped with the mixture incision on the angle of inclination.

The mixed cuts are small holes which are uniformly distributed in the longitudinal direction.

The length of the mixing notch is distributed over the whole pipe orifice with the inclination angle of 60 degrees, and the width of the mixing notch is 2-4 mm.

The length of the short connecting pipe is 100 mm.

And the compact valve group is internally provided with a one-way valve and a manual ball valve.

And a gasket and a main pipe flange are also arranged between the blind flange and the main pipe.

The invention has the advantages that:

1. the invention carries out innovative design on the basis of meeting the basic requirement of chemical agent injection, and facilitates the disassembly and assembly during on-site maintenance and replacement by adopting the connection of two pairs of flanges; the compact valve group is integrated, backflow is prevented, and isolation is convenient; the insertion design is adopted, so that the medicament directly reaches the center of the medium; the pipe orifice is designed into a 60-degree inclination angle by adopting an injection opening, so that the contact area of the medicament and a medium is increased; the injection port is specially designed with a mixing notch, so that the mixing effect of the medicament under the drive of the fluid is further improved.

2. The invention has the advantages of simple manufacture, difficult blockage, adaptability to various working conditions and the like, can greatly improve the mixing effect of the injected chemical agent and the medium, enables the chemical agent to better play a role, further reduces the injection amount of the chemical agent and reduces the production cost.

Drawings

FIG. 1 is a schematic diagram of the composition structure of the present invention, in which: 1-companion flange; 2-connecting short pipes; 3-a compact valve group; 4-injection short pipe; 5-blind flange; 6-mixed incision; 7-main pipe, 8-gasket, 9-main pipe flange.

FIG. 2 is a detail view of a portion of the end of the injection nozzle stub of the present invention, taken in the direction A of FIG. 1, in which: 6-mixed incision, 7-main tube.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, a chemical dilution syringe with an inclination angle and a mixing notch, comprising: the injection device comprises a mating flange 1, a short connecting pipe 2, a compact valve group 3, an injection short pipe 4, a blind flange 5 and a mixed notch 6, wherein the mating flange 1 is sequentially connected with the short connecting pipe 2, the compact valve group 3 and the injection short pipe 4, the injection short pipe 4 penetrates through the blind flange 5 and is inserted into the central position of a main pipe 7 from an opening on the side wall of the main pipe 7, the tail end of a pipe orifice of the injection short pipe 4 is obliquely cut into an inclined angle of 60 degrees, and the mixed notch 6 is arranged on the inclined angle.

The mixed cuts 6 are small holes uniformly distributed in the longitudinal direction.

The length of the mixing cut 6 is distributed over the whole pipe orifice with the inclination angle of 60 degrees, and the width is 2-4 mm.

The length of the connecting short pipe 2 is 100 mm.

And a one-way valve and a manual ball valve are arranged in the compact valve group 3.

And a gasket 8 and a main pipe flange 9 are also arranged between the blind flange 5 and the main pipe 7.

Above companion flange 1 main function be with the chemical agent pipeline connection of upper reaches, through setting up this companion flange 1 and can make things convenient for the later stage to overhaul and carry out the dismouting when changing, its size, material and pressure grade and medicament pipeline match unanimously.

The connecting short pipe 2 is consistent with the specification of an upstream chemical agent pipeline, is used for connecting the mating flange 1 and a downstream compact valve group 3, and is generally 100mm in length in consideration of welding and compactness as much as possible.

The compact valve group 3 integrates two types of valves, namely a check valve and a manual ball valve, the check valve is used for preventing media in the main pipe 7 from flowing back to a pipeline of a chemical agent system under the action of pressure difference, and meanwhile, the manual ball valve can play a role in cutting off and isolating.

The injection short pipe 4 is made of the same size and material as the external chemical agent pipeline, is inserted into the central position of the main pipe 7 through the open hole in the main pipe 7 and the blind flange 5, and the tail end of the pipe orifice of the injection short pipe 4 is obliquely cut into an inclination angle of 60 degrees, so that the contact area between the agent and the medium is increased. The key technology of the present invention is to inject the drug into the center of the main pipe 7 and to disperse the drug uniformly in the medium. The injection short pipe 4 penetrates through the blind flange 5 and is welded and fixed in a flat welding (SO) mode.

The blind flange 5 is a reducing flange with a through hole in the center, and is generally made of a flange cover plate according to the standard, the diameter of the through hole is determined according to the pipe diameter of the injection short pipe 4, and the diameter of the through hole is generally 1.0-1.2mm larger than that of the injection short pipe. The main functions are as follows: the first is matched and connected with the flange on the hole of the main pipe 7, and the second is welded and fixed with the injection short pipe 4. The blind flange 5 is made of the same material as the mating flange 1, but has different sizes, generally larger than the mating flange 1, and the size is determined according to the principle of facilitating the insertion of the injection stub 4. The pressure rating of the blind flange 5 is the same as the main pipe 7.

The mixed notch 6 is positioned on a 60-degree oblique angle at the tail end of the injection short pipe 4, the width of the notch can be flexibly adjusted according to the pipe diameter and the injection amount of the injection short pipe 4, and the function is to further diffuse the medicament under the drive of a medium.

The distance L1 between the companion flange 1 and the blind flange 5 is not particularly limited, and may be flexibly adjusted according to the actual situation of the site, but should be as compact as possible in consideration of the installation space and operability of the site. The insertion depth L2 of the main tube 7 needs to be determined by calculation based on the size of the main tube 7, the size of the opening, and the pressure rating.

According to the specification of an upstream chemical agent pipeline, the material, the size and the pressure grade of a companion flange 1 are determined; the specifications of the connecting short pipe 2 and the injection short pipe 4 are consistent with those of an upstream medicament pipeline, and the minimum cutting length of the connecting short pipe 2 is generally 100 mm; the compact valve group 3 is as compact as possible, the shape length is as short as possible, and the valves are arranged in the order that the one-way valves are arranged at the upstream of the ball valve; the injection short pipe 4 penetrates through the blind flange 5 and is welded on the inner surface and the outer surface, the 60-degree inclination angle at the tail end of the short pipe is arranged to face the downstream of the medium flow direction, and the wall thickness of the injection short pipe 4 can be properly reinforced in consideration of the impact of the medium; the material of the blind flange 5 is consistent with that of other parts of the injection part, the pressure grade is consistent with that of the main pipe 7, and the size is determined according to the size of the mating flange 1 so as to facilitate the insertion of the injection short pipe 4; the length L3 of the mixing incision 6 is distributed over the whole 60-degree inclination angle, and the width t can be selected to be 2-4 mm.

The distance L1 between the flange faces of the companion flange 1 and the blind flange 5 is generally not specifically limited, but should be as compact as possible, so that the field installation and operation are convenient; the distance from the flange surface of the blind flange 5 to the center of the main pipe 7, i.e., the insertion depth L2, needs to be determined by calculation according to the size of the main pipe 7, the size of the opening and the pressure level, and the thickness of the inter-flange gasket needs to be considered.

The mating flange 1, the short connecting pipe 2, the compact valve group 3 and the short injection pipe 4 are connected through insert welding (SW); the injection short pipe 4 and the blind flange 5 are fixedly connected through flat welding (SO), SO that the mating flange 1, the connecting short pipe 2, the compact valve group 3, the injection short pipe 4 and the blind flange 5 are integrated.

After the welding process is finished as a whole, the welding seam of the welding part is subjected to 100% penetration detection (PT), so that the sealing performance is ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.