Crude oil dehydration treatment dosing device

Abstract

The utility model relates to the technical field of crude oil dehydration, in particular to a dosing device for crude oil dehydration treatment. The crude oil dehydration treatment dosing device comprises a bottom plate, a treatment cylinder and a transfer cylinder which are fixedly connected are erected on the top of the bottom plate, and a flow guide assembly is erected between the treatment cylinder and the transfer cylinder; the height of the treatment cylinder is larger than that of the transfer cylinder, a liquid guide hole is formed in the side wall of the treatment cylinder, and the flow guide assembly comprises a flow guide cover. According to the crude oil dehydration treatment dosing device provided by the utility model, a mixed medicament can be guided and transferred into the transfer cylinder through the liquid guide hole, so that the preliminary discharge of the medicament is realized, the volume of the mixed medicament is reduced, then a defoaming agent can be added into the residual medicament for defoaming, and the overall medicament amount is reduced, so that the cost is reduced. Therefore, the defoaming agent can be more uniformly mixed with residual bubbles in the medicament, and the defoaming effect on the medicament is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crude oil dehydration, in particular to a chemical dosing device for crude oil dehydration treatment. Background Technique

[0002] The chemical dosing device in crude oil dehydration treatment is a key device to ensure that the crude oil meets the external transportation or refining standards. It is mainly used for adding chemical agents such as demulsifiers and flocculants to promote the separation of oil and water. When adding the agents to the crude oil, the demulsifier and flocculant need to be mixed with water, and then the proportioned agent is put for dosing treatment.

[0003] When mixing the demulsifier and water source, foam is easily generated during the mixing and stirring process. These foams will cause a certain waste of raw materials. The existing treatment methods generally directly add defoamers to the mixed agent for defoaming. However, due to the relatively large amount of the mixed agent, directly adding the defoamer reduces the reaction effect between the defoamer and the foam.

[0004] Therefore, it is necessary to provide a new chemical dosing device for crude oil dehydration treatment to solve the above technical problems. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a chemical dosing device for crude oil dehydration treatment.

[0006] The chemical dosing device for crude oil dehydration treatment provided by the utility model includes: a bottom plate, on the top of which a processing cylinder and a transfer cylinder are fixedly connected, and a flow guiding component is arranged between the processing cylinder and the transfer cylinder;

[0007] The height of the processing cylinder is greater than that of the transfer cylinder. A liquid guiding hole is opened on the side wall of the processing cylinder. The flow guiding component includes a flow guiding cover, which is fixedly inserted into the transfer cylinder and communicated with the inside of the transfer cylinder. One end of the flow guiding cover close to the processing cylinder is provided with a fixedly connected support piece. The outer wall of the support piece is fixedly connected with the part of the outer wall of the processing cylinder opposite to the liquid guiding hole. A fixedly connected filter screen is inlaid at the part of the inner wall of the support piece opposite to the flow guiding cover. And one end of the flow guiding cover close to the processing cylinder is higher than the end close to the transfer cylinder;

[0008] A partition plate is movably arranged inside the processing cylinder. A rubber ring is sleeved on the outer wall of the partition plate, and the outer wall of the rubber ring on the partition plate abuts against and is slidably connected with the inner wall of the processing cylinder.

[0009] Preferably, a plurality of uniformly distributed through holes are formed inside the partition disc. A chute is formed at a position of the bottom of the partition disc opposite to the through holes. A driving rod fixedly connected is erected at the center of the top of the partition disc. A liquid level sensor fixedly connected is arranged on the outer wall of the driving rod. A plurality of stirring blades fixedly connected are arranged on the top of the partition disc. And a plugging assembly for sealing the through holes is arranged at a position of the partition disc opposite to the through holes.

[0010] Preferably, the plugging assembly includes a connecting piece and a support frame. The outer wall of the connecting piece abuts against and is slidably connected to the inner wall of the through hole. A plugging piece fixedly connected is installed at the bottom of the connecting piece. The outer wall of the plugging piece abuts against and is slidably connected to the inner wall of the chute. And the support frame is fixedly installed at a position of the top of the partition disc opposite to the through holes.

[0011] Preferably, a plug rod slidably connected is inserted into the support frame. One end of the plug rod is fixedly connected to the outer wall of the connecting piece. A spring is sleeved on the outer part of the plug rod. One end of the spring is fixedly connected to the outer wall of the connecting piece. And the other end of the spring is fixedly connected to the support frame.

[0012] Preferably, a guiding frame fixedly connected is installed on the support frame. A pull rope is arranged outside the guiding frame. One end of the pull rope is fixedly connected to the end of the plug rod away from the connecting piece. The ends of a plurality of the pull ropes away from the connecting piece are fixedly connected to the same sliding disc. The inner wall of the sliding disc is slidably connected to the outer wall of the driving rod. A support disc fixedly connected is sleeved on the outer wall of the driving rod. And a hydraulic cylinder fixedly connected is erected between the support disc and the sliding disc.

[0013] Preferably, a driving motor fixedly connected is erected on the bottom plate. A lead screw fixedly connected is arranged at the output end of the driving motor. A supporting block rotatably connected is arranged at the top end of the lead screw. And the outer wall of the supporting block is fixedly connected to the outer wall of the treatment cylinder.

[0014] Preferably, a top frame rotatably connected is erected at the top end of the driving rod. A motor for driving the driving rod is fixedly installed on the top frame. A plurality of guiding rods fixedly connected are arranged at the bottom of the top frame. The bottom ends of a plurality of the guiding rods are fixedly connected to the same bottom frame. The inner wall of the bottom frame is threadedly connected to the outer wall of the lead screw. And the outer wall of the guiding rod opposite to the lead screw abuts against and is slidably connected to the inner wall of the supporting block.

[0015] Preferably, a pump body fixedly connected is installed on one side of the bottom plate close to the transfer cylinder. A liquid suction pipe fixedly connected is arranged at the output end of the pump body. And the end of the liquid suction pipe away from the pump body extends to the inner bottom of the transfer cylinder.

[0016] Preferably, a diversion strip is fixedly connected to one end of the fairing located inside the transfer cylinder. A sealing plate for sealing the inside of the fairing is inserted into the inside of the fairing, and a cylinder fixedly connected is arranged between the sealing plate and the support piece.

[0017] Compared with the related art, the chemical dosing device for crude oil dehydration treatment provided by the present utility model has the following beneficial effects:

[0018] 1. By arranging a diversion assembly between the treatment cylinder and the transfer cylinder, the present utility model can divert and store the mixed chemical agent into the transfer cylinder through the liquid guide holes, realizing the preliminary discharge of the chemical agent, reducing the capacity of the mixed chemical agent. Then, an antifoaming agent can be added to the remaining chemical agent to remove foam. The reduction of the overall chemical agent amount can make the antifoaming agent mix more evenly with the remaining bubbles in the chemical agent, improving the defoaming effect on the chemical agent.

[0019] 2. By inlaying a filter screen inside the support piece, during the diversion process of the chemical agent, the filter screen can pierce the remaining bubbles in the flowing chemical agent for physical defoaming, so as to assist in improving the defoaming effect of the device.

[0020] 3. By arranging a through hole inside the partition plate and arranging a stirring blade on its top, during the preparation process of the chemical agent, the partition plate can be controlled to move up and down in a spiral manner. During the spiral upward movement of the partition plate, the chemical agent can be stirred and mixed once. When the partition plate moves downward in a spiral manner, the chemical agent can be sprayed upward through the through hole, thereby realizing the turnover of the chemical agent. Therefore, the mixing effect of the device can be improved. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a preferred embodiment of the chemical dosing device for crude oil dehydration treatment provided by the present utility model;

[0022] Figure 2 is Figure 1 a partial sectional structural diagram of the bottom plate and its components shown in;

[0023] Figure 3 is Figure 2 a partial sectional structural diagram of the diversion assembly shown in;

[0024] Figure 4 is Figure 1 a schematic structural diagram of the connection between the partition plate, the plugging assembly and the driving motor shown in;

[0025] Figure 5 is Figure 4 a schematic structural diagram of the connection between the partition plate and the driving motor shown in;

[0026] Figure 6 is Figure 4Schematic structural diagram of the shown partition plate and its components viewed from below;

[0027] Figure 7 is Figure 4 Schematic structural diagram of the shown plugging assembly.

[0028] Reference numerals in the figure: 1, bottom plate; 11, treatment cylinder; 111, liquid guide hole; 12, transfer cylinder; 13, pump body; 131, liquid suction pipe; 2, diversion assembly; 21, diversion cover; 22, support sheet; 221, filter screen; 23, sealing plate; 231, cylinder; 24, diversion strip; 3, partition plate; 31, through hole; 311, chute; 32, drive rod; 321, liquid level sensor; 33, stirring blade; 34, top frame; 341, guide rod; 342, bottom frame; 4, drive motor; 41, lead screw; 42, support block; 5, plugging assembly; 51, connecting piece; 511, plugging piece; 52, support frame; 521, guide frame; 53, insertion rod; 531, spring; 54, pull rope; 541, sliding disk; 55, support disk; 551, hydraulic cylinder. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0031] Please refer to Figures 1 to 7 , a crude oil dehydration treatment chemical adding device provided by an embodiment of the present utility model, the crude oil dehydration treatment chemical adding device includes: a bottom plate 1.

[0032] In an embodiment of the present utility model, please refer to Figures 1 to 7A processing cylinder 11 and a transfer cylinder 12 are fixedly connected on the top of the bottom plate 1, and a flow guide assembly 2 is arranged between the processing cylinder 11 and the transfer cylinder 12; the height of the processing cylinder 11 is greater than the height of the transfer cylinder 12, and a liquid guide hole 111 is opened on the side wall of the processing cylinder 11, and the flow guide assembly 2 includes a flow guide cover 21, which is fixedly inserted in the transfer cylinder 12 and communicated with the interior of the transfer cylinder 12, and a fixedly connected support sheet 22 is installed at one end of the flow guide cover 21 close to the processing cylinder 11, and the outer wall of the support sheet 22 is fixedly connected to the outer wall of the processing cylinder 11 and the liquid guide hole 111. The inner wall of the support sheet 22 is connected to the flow guide cover A fixedly connected filter screen 221 is inlaid in the relative position of 21, and the end of the air guide cover 21 close to the processing cylinder 11 is higher than the end close to the transfer cylinder 12, and a fixedly connected guide strip 24 is installed at the end of the air guide cover 21 located inside the transfer cylinder 12, and a sealing plate 23 for sealing the inside of the air guide cover 21 is inserted inside the air guide cover 21, and a fixedly connected cylinder 231 is arranged between the sealing plate 23 and the supporting plate 22; a movably connected separation plate 3 is arranged inside the processing cylinder 11, and a rubber ring is sleeved on the outer wall of the separation plate 3, and the outer wall of the rubber ring on the separation plate 3 is abutted against and slidably connected to the inner wall of the processing cylinder 11.

[0033] It should be noted that: by setting up the guide component 2 between the processing cylinder 11 and the transfer cylinder 12, after the medicines are mixed and proportioned, the separation plate 3 is adjusted to move the separation plate 3 to the bottom of the liquid guide hole 111, and then the guide component 2 can be opened to release the blockage of the liquid guide hole 111. At this time, the mixed liquid will flow into the transfer cylinder 12 through the liquid guide hole 111, so that the medicine at the bottom of the processing cylinder 11 after proportioning can be diverted and transferred, to achieve the initial discharge of the medicine, reduce the volume of the mixed medicine, and then add the defoaming agent to the remaining medicine for defoaming. The reduction of the overall amount of medicine can make the defoaming agent and the residual bubbles in the medicine mix more evenly, thereby improving the defoaming effect on the medicine.

[0034] In the embodiments of the present invention, please refer to Figures 1 to 7, a plurality of uniformly distributed through holes 31 are provided inside the partition plate 3. A chute 311 is provided at a position on the bottom of the partition plate 3 opposite to the through hole 31. A driving rod 32 fixedly connected is erected at the center of the top of the partition plate 3. A liquid level sensor 321 fixedly connected is provided on the outer wall of the driving rod 32. A plurality of stirring blades 33 fixedly connected are provided on the top of the partition plate 3. And a plugging assembly 5 for sealing the through hole 31 is provided at a position on the partition plate 3 opposite to the through hole 31. The plugging assembly 5 includes a connecting piece 51 and a support frame 52. The outer wall of the connecting piece 51 abuts against and is slidably connected to the inner wall of the through hole 31. A plugging piece 511 fixedly connected is installed at the bottom of the connecting piece 51. The outer wall of the plugging piece 511 abuts against and is slidably connected to the inner wall of the chute 311. And the support frame 52 is fixedly installed at a position on the top of the partition plate 3 opposite to the through hole 31. A plug rod 53 slidably connected is inserted into the support frame 52. One end of the plug rod 53 is fixedly connected to the outer wall of the connecting piece 51. A spring 531 is sleeved on the outside of the plug rod 53. One end of the spring 531 is fixedly connected to the outer wall of the connecting piece 51. And the other end of the spring 531 is fixedly connected to the support frame 52. A guiding frame 521 fixedly connected is installed on the support frame 52. A pull rope 54 is provided outside the guiding frame 521. One end of the pull rope 54 is fixedly connected to the end of the plug rod 53 away from the connecting piece 51. The ends of a plurality of pull ropes 54 away from the connecting piece 51 are installed with a same fixedly connected sliding disk 541. The inner wall of the sliding disk 541 is slidably connected to the outer wall of the driving rod 32. A support disk 55 fixedly connected is sleeved on the outer wall of the driving rod 32. And a hydraulic cylinder 551 fixedly connected is erected between the support disk 55 and the sliding disk 541.

[0035] It should be noted that: through the setting of the plugging assembly 5, during the subsequent use process, when mixing and proportioning raw materials, the hydraulic cylinder 551 can be controlled to extend. The extended hydraulic cylinder 551 can pull the pull rope 54 through the sliding disk 541, so as to realize the pulling of the plug rod 53. The moving plug rod 53 will pull the connecting piece 51 and the plugging piece 511, and then the sealing of the through hole 31 can be released. Therefore, when the partition plate 3 moves in the vertical direction, the defoaming agent raw material and the water source can be smoothly turned over above and below the partition plate 3, so as to assist in improving the mixing effect during the preparation of the medicament;

[0036] After the preparation of the medicament is completed, the hydraulic cylinder 551 can be reset to release the drive of the pull rope 54. At this time, the spring 531 outside the plug rod 53 will squeeze the connecting piece 51 through its own acting force, so as to drive the plugging piece 511 to seal the through hole 31.

[0037] In the embodiment of the present invention, please refer to Figures 1 to 7, a driving motor 4 is fixedly connected and installed on the bottom plate 1. A lead screw 41 is fixedly connected to the output end of the driving motor 4. A supporting block 42 is rotatably connected to the top end of the lead screw 41, and the outer wall of the supporting block 42 is fixedly connected to the outer wall of the treatment cylinder 11. A top frame 34 is rotatably connected to the top end of the driving rod 32. A motor for driving the driving rod 32 is fixedly installed on the top frame 34. A plurality of guide rods 341 are fixedly connected to the bottom of the top frame 34. The bottom ends of the plurality of guide rods 341 are installed with a bottom frame 342 fixedly connected together. The inner wall of the bottom frame 342 is threadedly connected to the outer wall of the lead screw 41, and the outer wall of the guide rod 341 opposite to the lead screw 41 abuts against and is slidably connected to the inner wall of the supporting block 42.

[0038] It should be noted that: through the setting of the driving motor 4, during the subsequent use process, the working driving motor 4 will drive the lead screw 41 to rotate. The rotating lead screw 41 will drive the bottom frame 342 to move through the threaded structure, so as to drive the driving rod 32 and the partition plate 3 to move in the vertical direction through the guide rod 341 and the top frame 34. Therefore, the vertical movement of the partition plate 3 can be realized.

[0039] And during this process, the driving rod 32 can also be controlled to rotate. The rotating driving rod 32 will drive the partition plate 3 to rotate, and then the partition plate 3 can perform a vertical spiral movement. Therefore, the partition plate 3 can mix and stir the pharmaceutical raw materials and water sources more comprehensively through the stirring blades 33, and then the ratio of the raw materials can be made more uniform.

[0040] In the embodiment of the present invention, please refer to Figures 1 to 7 , a pump body 13 is fixedly connected and installed on one side of the top of the bottom plate 1 close to the transfer cylinder 12. A liquid suction pipe 131 is fixedly connected to the output end of the pump body 13, and the end of the liquid suction pipe 131 away from the pump body 13 extends to the inner bottom of the transfer cylinder 12.

[0041] It should be noted that: through the setting of the pump body 13, after the mixing of the pharmaceutical agent is completed later, the working pump body 13 can transport the defoamed pharmaceutical agent to the crude oil through the liquid suction pipe 131, so as to realize the dehydration operation of the crude oil.

[0042] The working principle of the crude oil dehydration treatment and dosing device provided by the present invention is as follows:

[0043] When using this device, the staff can first add the pharmaceutical raw materials and water sources required for crude oil dehydration into the treatment cylinder 11 in sequence, and then control the driving rod 32 to rotate. The rotating driving rod 32 can drive the stirring blades 33 to rotate through the partition plate 3, so as to realize the preliminary mixing and stirring of the pharmaceutical raw materials and water sources.

[0044] During this process, the driving motor 4 can be controlled to drive the lead screw 41 to rotate. The rotating lead screw 41 can drive the chassis 342, the guide rod 341, the top frame 34 and its partition plate 3 to move in the vertical direction through the threaded connection with the chassis 342, so that the partition plate 3 can move in the vertical direction. During this process, when the partition plate 3 moves upward, the pharmaceutical raw materials and water source above it will move downward through the through holes 31 towards the lower part of the partition plate 3. Conversely, when the partition plate 3 moves downward, the pharmaceutical and water source below the partition plate 3 will move upward towards the upper part of the partition plate 3, thereby realizing the up-and-down turning of the pharmaceutical and water source, and thus can assist in improving the mixing effect during pharmaceutical proportioning;

[0045] After the proportioning and mixing of the pharmaceutical are completed, the partition plate 3 can be adjusted to the bottom of the treatment cylinder 11, and then the hydraulic cylinder 551 is controlled to contract to release the pulling of the pull rope 54. At this time, the spring 531 will squeeze the connecting piece 51 through its own acting force, so that the connecting piece 51 can drive the plugging piece 511 to move to seal the through holes 31 in the partition plate 3;

[0046] Then the partition plate 3 can be controlled to move upward so that the partition plate 3 moves below the liquid guide hole 111, and then the cylinder 231 is controlled to work. The working cylinder 231 will drive the sealing plate 23 to move upward, thereby releasing the seal inside the diversion cover 21. At this time, the proportioned pharmaceutical will move into the inside of the diversion cover 21 through the diversion hole, and the pharmaceutical flowing into the inside of the diversion cover 21 will flow towards the inside of the transfer cylinder 12 through the diversion strip 24, so as to realize the transfer of the pharmaceutical. During this process, the filter screen 221 in the support piece 22 can pierce the fine bubbles contained in the flowing pharmaceutical, so as to realize the primary elimination of the bubbles;

[0047] During this process, when the pharmaceutical inside the treatment cylinder 11 flows to the relative position of the liquid level sensor 321, the controller at the terminal can control the cylinder 231 to reset and move, so that the sealing plate 23 is inserted into the inside of the diversion cover 21 to block the diversion cover 21, so as to separate the part of the pharmaceutical containing more bubbles;

[0048] Then the staff can add the defoamer into the treatment cylinder 11. By reducing the overall stock of the pharmaceutical, the defoamer can be more fully mixed with the remaining pharmaceutical, so as to improve the defoaming effect of the proportioned pharmaceutical. After defoaming, the above operations can be repeated to discharge the remaining pharmaceutical into the transfer cylinder 12;

[0049] Then the pump body 13 can be controlled to work as needed. The working pump body 13 can add the proportioned pharmaceutical inside the transfer cylinder 12 into the crude oil through the liquid suction pipe 131, so as to realize the chemical addition treatment for crude oil dehydration.

[0050] The circuits and controls involved in the present utility model are all prior arts, and will not be elaborated herein.

[0051] The above are only embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An oil dehydration treatment chemical adding device, characterized in that Comprising: A bottom plate (1), on the top of which a processing cylinder (11) and a transfer cylinder (12) fixedly connected are erected, and a diversion assembly (2) is erected between the processing cylinder (11) and the transfer cylinder (12); The height of the processing cylinder (11) is greater than that of the transfer cylinder (12). A liquid guiding hole (111) is opened on the side wall of the processing cylinder (11). The diversion assembly (2) includes a diversion cover (21), and the diversion cover (21) is fixedly inserted into the transfer cylinder (12) and communicated with the inside of the transfer cylinder (12). One end of the diversion cover (21) close to the processing cylinder (11) is provided with a support piece (22) fixedly connected. The outer wall of the support piece (22) is fixedly connected with the relative part of the outer wall of the processing cylinder (11) and the liquid guiding hole (111). A filter screen (221) fixedly connected is inlaid at the relative part of the inner wall of the support piece (22) and the diversion cover (21), and one end of the diversion cover (21) close to the processing cylinder (11) is higher than the end close to the transfer cylinder (12); An isolation plate (3) movably connected is erected inside the processing cylinder (11). A rubber ring is sleeved on the outer wall of the isolation plate (3), and the outer wall of the rubber ring on the isolation plate (3) abuts against and is slidably connected with the inner wall of the processing cylinder (11).

2. The chemical dosing device for crude oil dehydration treatment according to claim 1, characterized in that A plurality of uniformly distributed through holes (31) are opened inside the isolation plate (3). A chute (311) is opened at the relative part of the bottom of the isolation plate (3) and the through holes (31). A driving rod (32) fixedly connected is erected at the center of the top of the isolation plate (3). A liquid level sensor (321) fixedly connected is arranged on the outer wall of the driving rod (32). A plurality of stirring blades (33) fixedly connected are arranged on the top of the isolation plate (3), and a plugging assembly (5) for sealing the through holes (31) is arranged at the relative part of the isolation plate (3) and the through holes (31).

3. The crude oil dehydration treatment chemical adding device according to claim 2, wherein, The plugging assembly (5) includes a connecting piece (51) and a support frame (52). The outer wall of the connecting piece (51) abuts against and is slidably connected with the inner wall of the through hole (31). A plugging piece (511) fixedly connected is installed at the bottom of the connecting piece (51). The outer wall of the plugging piece (511) abuts against and is slidably connected with the inner wall of the chute (311), and the support frame (52) is fixedly installed at the relative part of the top of the isolation plate (3) and the through hole (31).

4. The chemical dosing device for crude oil dehydration treatment according to claim 3, wherein A sliding rod (53) slidably connected is inserted into the support frame (52). One end of the sliding rod (53) is fixedly connected with the outer wall of the connecting piece (51). A spring (531) is sleeved on the outside of the sliding rod (53). One end of the spring (531) is fixedly connected with the outer wall of the connecting piece (51), and the other end of the spring (531) is fixedly connected with the support frame (52).

5. The chemical dosing device for crude oil dehydration treatment according to claim 4, wherein A guiding frame (521) is fixedly connected and installed on the support frame (52). A pulling rope (54) is arranged outside the guiding frame (521). One end of the pulling rope (54) is fixedly connected to the end of the insertion rod (53) far away from the connecting piece (51). The ends of multiple pulling ropes (54) far away from the connecting piece (51) are fixedly connected to the same sliding disk (541). The inner wall of the sliding disk (541) is slidably connected to the outer wall of the driving rod (32). A support disk (55) is fixedly sleeved on the outer wall of the driving rod (32), and a hydraulic cylinder (551) is fixedly connected between the support disk (55) and the sliding disk (541).

6. The crude oil dehydration treatment chemical adding device according to claim 1, wherein, A driving motor (4) is fixedly connected and installed on the bottom plate (1). A lead screw (41) is fixedly connected to the output end of the driving motor (4). A support block (42) is rotatably connected to the top end of the lead screw (41), and the outer wall of the support block (42) is fixedly connected to the outer wall of the treatment cylinder (11).

7. The chemical dosing device for crude oil dehydration treatment according to claim 2, wherein, A top frame (34) is rotatably connected to the top end of the driving rod (32). A motor for driving the driving rod (32) is fixedly installed on the top frame (34). Multiple guiding rods (341) are fixedly connected to the bottom of the top frame (34). The bottom ends of the multiple guiding rods (341) are fixedly connected to the same bottom frame (342). The inner wall of the bottom frame (342) is threadedly connected to the outer wall of the lead screw (41), and the outer wall of the guiding rod (341) opposite to the lead screw (41) abuts against and is slidably connected to the inner wall of the support block (42).

8. The chemical dosing device for crude oil dehydration treatment according to claim 1, wherein, A pump body (13) is fixedly connected and installed on one side of the top of the bottom plate (1) close to the transfer cylinder (12). A liquid suction pipe (131) is fixedly connected to the output end of the pump body (13), and the end of the liquid suction pipe (131) far away from the pump body (13) extends to the inner bottom of the transfer cylinder (12).

9. The chemical dosing device for crude oil dehydration treatment according to claim 1, wherein, A guiding strip (24) is fixedly connected to one end of the flow guiding cover (21) located inside the transfer cylinder (12). A sealing plate (23) for plugging the inside of the flow guiding cover (21) is inserted into the inside of the flow guiding cover (21), and a cylinder (231) is fixedly connected between the sealing plate (23) and the support piece (22).

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