Chemical adding device for heavy oil high-temperature dehydration test

Abstract

The utility model relates to the technical field of heavy oil experiments, in particular to a dosing device for a heavy oil high-temperature dehydration test. The dosing device for the heavy oil high-temperature dehydration test comprises an injection pipe, a piston rod is inserted into the injection pipe, a piston head which abuts against the inner wall of the injection pipe and is in sliding connection with the inner wall of the injection pipe is fixedly installed at the end of the piston rod, and a positioning assembly for controlling the movement track of the piston rod is installed outside the injection pipe. According to the chemical adding device for the heavy oil high-temperature dehydration test, in the using process, when chemical adding is needed, the rotating cylinder can be controlled firstly to drive the positioning plate to move, the distance between the positioning plate and the auxiliary lug is adjusted, and when a worker drives the piston rod and the positioning plate abuts against the auxiliary lug in the later period, the chemical adding process is completed. Therefore, the moving distance of the piston can be accurately controlled, and the dosing accuracy can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to thickened oil experimental technical field especially relates to a thickened oil high temperature dehydration test is with dosing device. BACKGROUND

[0002] The main purpose of thickened oil high temperature dehydration test is to simulate the field condition in the laboratory, to find the optimal process parameters by heating and other auxiliary means (such as adding demulsifier), to realize the emulsified water and free water in thickened oil maximum separation, make the water content of crude oil reduce to the purpose of handover standard. Its test steps (bottle test method) are as follows: sample preparation-add demulsifier-mix emulsion-constant temperature standing settlement-observation and record calculation dehydration rate-repeated test, and dosing device, which is called dosing device, is the device for adding auxiliary reagent during the experiment, and the syringe is a common dosing device.

[0003] And the existing syringe, when using, is that the staff controls the pushing force of the piston rod to control the discharged reagent capacity, and this manual control mode often causes the discharged reagent to be too much or insufficient due to the excessive or insufficient pushing force when pushing, and the dosing precision is relatively low.

[0004] Therefore, it is necessary to provide a new thickened oil high temperature dehydration test dosing device to solve the above technical problems. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a thickened oil high temperature dehydration test dosing device.

[0006] The thickened oil high temperature dehydration test dosing device provided by the utility model comprises an injection pipe, a piston rod is arranged in the injection pipe, a piston head is fixedly installed at the end of the piston rod and is in sliding connection with the inner wall of the injection pipe, and a positioning assembly for controlling the moving track of the piston rod is installed on the outer wall of the injection pipe.

[0007] The positioning assembly comprises a positioning plate, a rotating cylinder is rotatably connected to the outer wall of the positioning plate, the inner wall of the rotating cylinder is in threaded connection with the outer wall of the piston rod, and the inner wall of the positioning plate is not in contact with the outer wall of the piston rod.

[0008] An auxiliary ear is fixedly connected to the end of the injection pipe away from the medicine discharging opening, and the outer wall of the auxiliary ear is in abutment with the outer wall of the positioning plate.

[0009] Preferably, limit holes are formed in the two side walls of the positioning plate, mounting pieces are fixedly connected to the positions opposite to the limit holes on the outer wall of the auxiliary ear, supporting pieces are fixedly connected to the outer wall of the mounting pieces, and a limit rod is slidingly arranged in the supporting piece.

[0010] Preferably, the end of the limiting rod penetrates through the supporting sheet and abuts against the inner wall of the limiting hole, and the outer wall of the limiting rod is provided with two fixedly connected magnetic sheets on both sides, the two magnetic sheets are respectively located on both sides of the supporting sheet away from the limiting hole, and the magnetic sheets abut against and are attracted to each other when the limiting rod is inserted into the limiting hole.

[0011] Preferably, the positioning assembly further comprises sliding rods, the sliding rods are provided with two and are symmetrically distributed on both sides of the piston rod, the outer wall of the positioning plate is provided with through holes, the inner wall of the through hole is in abutment and sliding connection with the outer wall of the sliding rod, the two sliding rods and the piston rod are provided with the same fixedly connected driving sheet at the end away from the piston head, and the outer wall of the sliding rod is fixedly provided with a scale bar.

[0012] Preferably, the outer wall of the auxiliary ear is provided with a guide hole, and the inner wall of the guide hole is in abutment and sliding connection with the outer wall of the sliding rod.

[0013] Preferably, the end of the sliding rod away from the driving sheet is provided with a fixedly connected protruding rod, the connecting part of the protruding rod and the sliding rod is provided with a fixedly connected blocking sheet, the same connecting ring is sleeved between the two protruding rods, the inner wall of the connecting ring is in abutment and sliding connection with the outer wall of the injection tube, and the outer wall of the protruding rod is provided with a nut for limiting the connecting ring through a threaded structure.

[0014] Compared with the related art, the dosing device for thick oil high-temperature dehydration test has the following beneficial effects:

[0015] 1. By means of the positioning assembly, when the addition of the medicament is needed in the use process, the rotating cylinder can be controlled to drive the positioning plate to move, the distance between the positioning plate and the auxiliary ear is adjusted, when the positioning plate abuts against the auxiliary ear, the distance of the piston movement can be accurately controlled when the staff drives the piston rod, so that the accuracy of dosing can be improved.

[0016] 2. By means of the limiting rod, when the staff completes the addition of the medicament, the limiting rod can be moved to be inserted into the limiting hole on the side wall of the positioning plate, the sliding of the piston rod in the later period can be limited by the positioning plate, so that when the device is placed after the completion of dosing, the piston rod is subjected to the impact force when being placed, the phenomenon that the medicament in the injection tube is overflowed and scattered due to sliding is avoided, and the waste of the medicament is reduced and the use experience of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure diagram of a preferred embodiment of the dosing device for thick oil high-temperature dehydration test provided by the utility model;

[0018] Figure 2 For Figure 1 The structural schematic view of the sliding rod and components thereof is shown in the figure.

[0019] Figure 3 For Figure 1 The structural schematic view of the piston rod and the positioning plate connection is shown in the figure.

[0020] Figure 4 For Figure 1 The structural schematic view of the mounting sheet and components thereof is shown in the figure.

[0021] Figure 5 For Figure 1 The partial sectional structural schematic view of the injection pipe is shown in the figure.

[0022] The figure label: 1, injection pipe; 11, auxiliary ear; 111, guide hole; 2, piston rod; 21, piston head; 3, positioning assembly; 31, sliding rod; 311, protruding rod; 312, baffle; 313, connecting ring; 32, positioning plate; 321, limiting hole; 322, through hole; 33, rotating cylinder; 34, driving sheet; 4, mounting sheet; 41, supporting sheet; 42, limiting rod; 43, magnetic sheet. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0024] The specific implementation of the utility model is described in detail in the following by combining with specific examples.

[0025] Please refer to Figures 1 to 5 The utility model embodiment provides a kind of dosing device for thick oil high temperature dewatering test, and dosing device for thick oil high temperature dewatering test includes: injection pipe 1.

[0026] In the embodiment of the utility model, please refer to Figures 1 to 5 Injection pipe 1 is inserted with piston rod 2 inside, the end of piston rod 2 is fixedly installed with the piston head 21 that is in contact with the inner wall of injection pipe 1 and slidably connected, and the outer portion of injection pipe 1 is provided with positioning assembly 3 for controlling the moving track of piston rod 2;Positioning assembly 3 includes positioning plate 32, rotating cylinder 33 is rotatably connected on the outer wall of positioning plate 32, the inner wall of rotating cylinder 33 is threadedly connected with the outer wall of piston rod 2, and the inner wall of positioning plate 32 is not in contact with the outer wall of piston rod 2;Injection pipe 1 is installed with fixedly connected auxiliary ear 11 at one end away from medicine outlet, and the outer wall of auxiliary ear 11 is in contact with the outer wall of positioning plate 32.

[0027] It should be noted that: through the setting of the positioning assembly 3, in the use process, when the medicament needs to be added, the staff can first control the rotating cylinder 33 to rotate, so that it drives the positioning plate 32 to move on the outer wall of the piston rod 2, and in the movement process of the positioning plate 32, the staff can accurately control the distance between the positioning plate 32 and the auxiliary ear 11 by comparing the positioning plate 32 with the scale bar on the outer wall of the sliding plate, and when the positioning plate 32 and the auxiliary ear 11 abut, the distance of the piston movement can be accurately controlled when the staff drives the piston rod 2, so that the accuracy of the drug adding can be improved.

[0028] In the embodiment of the utility model, please refer to Figures 1 to 5 The two side walls of the positioning plate 32 are provided with limiting holes 321, the outer wall of the auxiliary ear 11 is provided with fixedly connected mounting pieces 4 at the opposite position of the limiting holes 321, the outer wall of the mounting piece 4 is provided with fixedly connected supporting pieces 41, the inside of the supporting piece 41 is provided with slidingly connected limiting rods 42, the end of the limiting rod 42 penetrates the supporting piece 41 and abuts against the inner wall of the limiting hole 321, the outer wall of the limiting rod 42 is provided with fixedly connected magnetic sheets 43 on both sides, the two magnetic sheets 43 are located on the two sides of the supporting piece 41 away from the limiting hole 321, and when the limiting rod 42 is inserted into the limiting hole 321, the magnetic sheet 43 abuts against the outer wall of the supporting piece 41 and is mutually adsorbed.

[0029] It should be noted that: through the setting of the limiting rod 42 and the limiting hole 321, when the ejection of the medicament is completed, the positioning plate 32 on the piston rod 2 can abut against the auxiliary ear 11 smoothly, at this time, the limiting hole 321 and the limiting rod 42 can belong to the same straight line, at this time, the staff can move the limiting rod 42, so that it slides in the inside of the supporting piece 41 towards the direction of the limiting hole 321, so that the limiting rod 42 can be inserted into the limiting hole 321 smoothly, the limiting of the positioning plate 32 and the piston rod 2 is realized, and when the limiting rod 42 is inserted into the limiting hole 321, the magnetic sheet 43 on the outer wall of the limiting rod 42 can abut against the outer wall of the supporting piece 41 and be mutually adsorbed, so that the stability of the limiting rod 42 inserted into the limiting hole 321 can be improved, and the limiting rod 42 can stably limit the positioning plate 32 and the piston rod 2.

[0030] So that after the drug adding is completed, the piston rod 2 is subjected to the impact force when being placed, the phenomenon that the medicament in the injection tube 1 is overflowed and scattered due to sliding can be reduced, and the waste of the medicament can be reduced and the use experience of the device can be improved.

[0031] In the embodiment of the utility model, please refer to Figures 1 to 5The positioning assembly 3 further comprises two slide rods 31 symmetrically arranged on both sides of the piston rod 2, and the outer wall of the positioning plate 32 is provided with two through holes 322, the inner wall of the through hole 322 is in abutment and sliding connection with the outer wall of the slide rod 31, the two slide rods 31 and the piston rod 2 are provided with the same fixedly connected driving piece 34 at the end away from the piston head 21, and the outer wall of the slide rod 31 is fixedly provided with a scale bar, and the outer wall of the auxiliary ear 11 is provided with a guide hole 111 in abutment and sliding connection with the outer wall of the slide rod 31.

[0032] It should be noted that: by connecting the driving piece 34 with the slide rod 31 and the piston rod 2, when the staff presses the driving piece 34 during use, the piston rod 2 and the slide rod 31 can be driven synchronously, and the slide rod 31 can improve the lateral extrusion force of the piston rod 2 after assembly, thereby reducing the probability of breakage of the piston rod 2 in the subsequent use process.

[0033] In the embodiment of the utility model, please refer to Figures 1 to 5 The end of the slide rod 31 away from the driving piece 34 is provided with a fixedly connected protruding rod 311, the connecting part of the protruding rod 311 and the slide rod 31 is provided with a fixedly connected baffle 312, the same connecting ring 313 is sleeved between the two protruding rods 311, the inner wall of the connecting ring 313 is in abutment and sliding connection with the outer wall of the injection pipe 1, and the outer wall of the protruding rod 311 is provided with a nut for limiting the connecting ring 313 through a threaded structure.

[0034] It should be noted that: by arranging the connecting ring 313, the connecting ring 313 at the end of the slide rod 31 can form a complete overall structure during use, thereby improving the guiding effect of the slide rod 31, and since the connecting ring 313 is sleeved, the connecting ring 313 can be removed after the staff loosens the nut and removes the limitation of the connecting ring 313, so that when the staff pulls the piston rod 2, the piston rod 2 and the piston head 21 can be pulled out of the injection pipe 1 together, so that the staff can later overhaul and replace the damaged piston head 21.

[0035] The working principle of the dosing device for thick oil high-temperature dehydration test provided by the utility model is as follows:

[0036] When using the device, the staff can first insert the port of the injection pipe 1 into the medicament storage tank, then pull the piston rod 2 to drive the piston head 21 to move in the injection pipe 1, so that the medicament can be sucked into the injection pipe 1, and before adding the medicament into the test pipe for thick oil high-temperature dehydration test,

[0037] The air in the injection tube 1 can be first pushed out by pushing the piston rod 2, and then the rotating cylinder 33 in the positioning assembly 3 can be rotated on the outer wall of the movable piston rod according to the required injection volume of the medicine, at this time, the rotating cylinder 33 can be moved spirally along the outer wall of the piston rod 2 through the threaded structure, and in the process, the moving rotating cylinder 33 can drive the positioning plate 32 to move synchronously on the outer wall of the sliding rod 31, and the moving distance of the positioning plate 32 can be accurately controlled through the comparison between the positioning plate 32 and the scale on the outer wall of the sliding rod 31.

[0038] After the position of the positioning plate 32 is adjusted, the piston rod 2 and the piston head 21 at the end thereof can be pushed by the driving piece 34, and the moving piston head 21 can push the medicine in the injection tube 1 out through the medicine outlet at the end, so that the medicine adding operation can be smoothly performed, and in the process, when the outer wall of the positioning plate 32 abuts against the outer wall of the auxiliary ear 11, the positioning plate 32 can block the movement track of the piston rod 2, so that the moving distance of the piston head 21 can be accurately controlled, the medicine liquid extruded and added is more accurate, and the accuracy of the thick oil high-temperature dehydration test can be assisted to be improved, and the influence of the deviation of the added medicine on the experimental results can be reduced.

[0039] After the medicine is added, before the device is placed, the staff can push the limiting rods 42 on both sides, and the limiting rods 42 subjected to the pushing force can slide in the inside of the supporting piece 41 towards the direction close to the limiting hole 321, and when the limiting rods 42 are inserted into the inside of the limiting hole 321, the magnetic pieces 43 on the outer wall of the limiting rods 42 can abut against and be attracted to the supporting piece 41, so that the limiting rods 42 are limited, and the sliding track of the piston rod 2 can be limited through the limiting rods 42.

[0040] Therefore, when the staff finishes adding the medicine and needs to place the device, the phenomenon that the piston rod 2 is randomly slid due to the abutting force between the driving piece 34 and the external components during the placing process can be avoided, so that the piston rod 2 can always be in a stable state when the device is not used, and the phenomenon that the medicine in the injection tube 1 is randomly leaked due to the random sliding of the piston rod 2 when the device is not used can be reduced, and therefore the use experience of the device can be improved.

[0041] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion obtained by utilizing the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A dosing device for thick oil high-temperature dehydration test, characterized in that, Include: The injection tube (1), the inside of the injection tube (1) is inserted with a piston rod (2), the end of the piston rod (2) is fixedly installed with a piston head (21) which is abutted and slidably connected with the inner wall of the injection tube (1), and the outside of the injection tube (1) is installed with a positioning assembly (3) for controlling the moving track of the piston rod (2); The positioning assembly (3) comprises a positioning plate (32), a rotating cylinder (33) is rotatably installed on the outer wall of the positioning plate (32), the inner wall of the rotating cylinder (33) is threadedly connected with the outer wall of the piston rod (2), and the inner wall of the positioning plate (32) is not in contact with the outer wall of the piston rod (2); The end of the injection tube (1) away from the drug discharge port is installed with a fixedly connected auxiliary lug (11), and the outer wall of the auxiliary lug (11) is abutted with the outer wall of the positioning plate (32).

2. The dosing device for thick oil high-temperature dehydration test according to claim 1, characterized in that, Limiting holes (321) are formed in the two side walls of the positioning plate (32), the outer wall of the auxiliary lug (11) and the opposite part of the limiting hole (321) are both installed with a fixedly connected mounting piece (4), the outer wall of the mounting piece (4) is installed with a fixedly connected supporting piece (41), and the inside of the supporting piece (41) is inserted with a slidably connected limiting rod (42).

3. The dosing device for thick oil high-temperature dehydration test according to claim 2, characterized in that, The end of the limiting rod (42) penetrates through the supporting piece (41) and is abutted with the inner wall of the limiting hole (321), the outer wall of the limiting rod (42) is installed with a fixedly connected magnetic sheet (43) on both sides, the two magnetic sheets (43) are respectively located on the two sides of the supporting piece (41) away from the limiting hole (321), and when the limiting rod (42) is inserted into the inside of the limiting hole (321), the magnetic sheets (43) are abutted with the outer wall of the supporting piece (41) and are mutually attracted.

4. The dosing device for thick oil high-temperature dehydration test according to claim 1, characterized in that, The positioning assembly (3) further comprises a sliding rod (31), the sliding rod (31) is provided with two and is symmetrically distributed on both sides of the piston rod (2), through holes (322) are formed in the two sides of the outer wall of the positioning plate (32), the inner wall of the through hole (322) is abutted with and slidably connected with the outer wall of the sliding rod (31), the two sliding rods (31) and the piston rod (2) are installed with the same fixedly connected driving piece (34) at the end away from the piston head (21), and the outer wall of the sliding rod (31) is fixedly installed with a scale bar.

5. The dosing device for thick oil high-temperature dehydration test according to claim 4, characterized in that, A guide hole (111) is formed in the outer wall of the auxiliary lug (11), and the inner wall of the guide hole (111) is abutted with and slidably connected with the outer wall of the sliding rod (31).

6. The dosing device for thick oil high-temperature dehydration test according to claim 4, characterized in that, The end of the sliding rod (31) away from the driving piece (34) is installed with a fixedly connected lug (311), the lug (311) is installed with a fixedly connected baffle (312) at the connecting part with the sliding rod (31), the same connecting ring (313) is sleeved between the two lugs (311), the inner wall of the connecting ring (313) is abutted with and slidably connected with the outer wall of the injection tube (1), and the outer wall of the lug (311) is installed with a nut for limiting the connecting ring (313) through a threaded structure.

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