Manual rotary dosing device

Abstract

The invention discloses a manual rotary dosing device which comprises a device body, and a medicament channel is formed in the device body in the axial direction of the device body. The central rolling shaft is rotationally connected with the device body, part of the central rolling shaft is located in the medicament channel of the device body, and the part, located in the medicament channel, of the central rolling shaft is provided with a medicament containing vessel; the dosing device is provided with a manual operation structure which is connected with the central rolling shaft and drives the central rolling shaft to rotate; and the manual operation structure drives the central rolling shaft to rotate so as to drive the medicament containing vessel to turn over and put the medicament in the medicament containing vessel into the medicament channel. The manual rotary dosing device receives the medicament conveyed by the medicament storage box and is communicated with the medicament conveying pipe through the tee joint to achieve the design purpose of quantitative dosing, the device can more safely, conveniently and reliably feed the medicament, the operation is simple and convenient, and all the operations can be manually completed.

Description

Technical Field

[0001] This invention relates to the field of oilfield oil and gas production technology, and in particular to a special manual rotary dosing device for dispensing solid agents in the annular space between the well tubing and casing. Background Technology

[0002] As oilfield development enters its mid-to-late stages, production casings in oil wells frequently suffer from chemical corrosion damage. Severe casing corrosion poses significant safety hazards and can even render oil and gas wells unable to operate normally. Therefore, oilfields typically employ measures to mitigate casing corrosion, thereby significantly extending its service life. Many casing corrosion prevention methods exist, among which the use of chemical corrosion inhibitors is a commonly used approach.

[0003] See Figure 1 As shown, Figure 1 This diagram illustrates a common wellbore structure in the prior art. To protect the casing, a protective fluid is typically injected into the annular space between the tubing and casing (hereinafter referred to as the casing annulus). This protective fluid contains chemical agents for casing corrosion prevention. However, after a certain period of production, the chemical components in the protective fluid are gradually consumed. The casing protective fluid is located in the annulus section from above the packer to below the wellhead. It is injected during the running of the production tubing, and this protective fluid cannot be replaced during normal gas well production. To ensure the casing protective fluid provides sustained protection for the casing, chemical agents need to be added to it. In typical gas production wells, the casing annulus is not fully filled with protective fluid; the top section is often empty. This empty section typically contains a large amount of natural gas and has a certain pressure. If not handled properly, and the wellhead seal is inadequate, natural gas leakage accidents can easily occur.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a special manual rotary dosing device suitable for dispensing solid agents in the annular space between the well tubing and casing. Summary of the Invention

[0005] The purpose of this invention is to provide a dedicated manual rotary dosing device. This device receives the medicine delivered by the medicine storage tank and connects to the medicine delivery pipe through a three-way valve to achieve the design purpose of quantitative dosing. This device can deliver medicine more safely, conveniently and reliably, and is easy to operate. All operations can be completed manually.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention provides a manually operated rotary dosing device, the dosing device comprising:

[0008] The device body, wherein a drug channel is formed along its axial direction; and

[0009] A central roller is rotatably connected to the device body, the central roller portion being located within the drug channel of the device body, and the portion of the central roller located within the drug channel having a drug holding dish;

[0010] The dosing device is equipped with a manual operation structure that is connected to the central roller and drives the central roller to rotate.

[0011] The manual operation structure drives the central roller to rotate, thereby causing the medicine container to flip and dispensing the internal medicine into the medicine channel.

[0012] Furthermore, the device body includes a first body and a second body;

[0013] The second body is formed at the upstream end of the process of the first body, and the second body is connected to the reagent storage tank at the upstream end of the process through a pipeline via the upper male thread on its outer periphery.

[0014] The downstream end of the first body is provided with a female thread, and the first body is connected to the drug delivery pipe at the downstream end of the process through the female thread.

[0015] The medicine in the medicine storage box is delivered to the medicine holding dish through a pipe.

[0016] Furthermore, the cross-sectional dimensions of the first body are larger than those of the second body;

[0017] The central roller is embedded in and rotatably connected to the first body.

[0018] Furthermore, one side of the first body protrudes outward to form a convex portion;

[0019] The central roller is laterally embedded into the first body along the center position of the protrusion, and one end of the central roller is close to the outer end of the protrusion. A sealing space is reserved between the central roller and the outer end of the protrusion, and a sealing component is installed in the sealing space.

[0020] Furthermore, a locking cap is installed on the outside of the protrusion.

[0021] Furthermore, the sealing assembly includes:

[0022] Two copper bushings, one of which rests against the end face of the central roller, and the other bushing is located near the end of the protrusion; and

[0023] A sealing ring is located between the two copper sleeves, and the sealing ring is clamped and fixed by the two copper sleeves;

[0024] The sealing assembly is secured within the sealing space by the locking cap.

[0025] Furthermore, two sealing rings are provided at the connection between the central roller and the first body.

[0026] Furthermore, the manual operation structure includes:

[0027] Manual crank; and

[0028] A transmission rod connected to the manual crank, the transmission rod passing sequentially through the locking cap and the sealing assembly and connected to the central roller;

[0029] The manual crank drives the central roller to rotate via the transmission rod.

[0030] Furthermore, the cross-sectional dimension of the end of the transmission rod connected to the central roller is larger than the cross-sectional dimension of the end of the transmission rod that mates with the manual crank.

[0031] The transmission rod is connected to the central roller via a hexagonal structure, and the transmission rod is connected to the manual crank via a square structure.

[0032] Furthermore, the size of the drug channel located above the central roller in the device body is smaller than the size of the drug channel located below the central roller.

[0033] The manual rotary dosing device provided by the present invention, as described above, has the following beneficial effects:

[0034] The manual rotary dosing device of the present invention receives the medicine delivered by the medicine storage tank and connects to the medicine delivery pipe through a three-way valve to achieve the design purpose of quantitative dosing. The device can dosing medicine more safely, conveniently and reliably, and is easy to operate. All operations can be completed manually. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0036] Figure 1 This is a schematic diagram of the wellbore structure in the prior art and the present invention.

[0037] Figure 2 This is a schematic diagram of the structure of the manual rotary dosing device disclosed in an embodiment of the present invention;

[0038] Figure 3This is a schematic diagram of the dosing state of the manual rotary dosing device disclosed in an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the dosing state of the manually rotated dosing device disclosed in an embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Device body; 2. Central roller; 4. Manual operation mechanism; 5. Reagent;

[0042] 101. First body; 102. Second body; 103. Upper male thread; 104. Lower female thread; 105. Protrusion; 106. Locking cap;

[0043] 201. Medicine container;

[0044] 301. Copper sleeve; 302. Sealing ring; 303. Sealing ring;

[0045] 401. Manual crank; 402. Transmission rod. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] See Figures 1 to 4 As shown;

[0048] This embodiment discloses a manually rotated drug delivery device, which includes:

[0049] Device body 1, with a pharmaceutical channel formed along its axial direction; and

[0050] A central roller 2 is rotatably connected to the device body 1. A portion of the central roller 2 is located within the drug channel of the device body, and the portion of the central roller 2 located within the drug channel has a drug container 201.

[0051] The dosing device is equipped with a manual operation structure 4 that is connected to the central roller 2 and drives the central roller 2 to rotate;

[0052] The manual operation structure 4 drives the central roller 2 to rotate, thereby driving the medicine container 201 to flip and dispensing the internal medicine into the medicine channel.

[0053] Specifically, this embodiment discloses a manual rotary dosing device, which is mainly used to deliver solid chemicals to a delivery pipe connected to a position corresponding to the wellbore. It is manually operated and achieves quantitative dosing. The manual rotary dosing device of this embodiment mainly includes a device body 1, a central roller 2 rotatably connected within the device body 1, and a manual operation structure 4 for driving the central roller 2 to rotate. First, according to the required dosage, a suitable chemical container 201 is fixed on the central roller 2, facing upwards, to receive the chemicals delivered from the upstream end of the process. The chemical container 201 allows for quantitative dosing. By rotating the container 201 downwards, the chemicals can be smoothly dispensed. Repeated dosing according to the required dosage achieves quantitative dosing. This device is easy to operate and has high dosing accuracy.

[0054] Preferably, the device body 1 in this embodiment includes a first body 101 and a second body 102;

[0055] The second body 102 is formed at the upstream end of the process of the first body 101, and the second body 102 is connected to the reagent storage tank at the upstream end of the process through a pipeline via the upper male thread 103 on its outer periphery.

[0056] The downstream end of the first body 101 is provided with a female thread 104, and the first body 101 is connected to the drug delivery pipe at the downstream end of the process through the female thread 104.

[0057] The medicine in the medicine storage box is delivered into the medicine container 201 through a pipe.

[0058] The manual rotary dosing device of this embodiment is mainly applicable to the applicant's casing dosing system, and this device is a core component of the casing dosing system. The upper end of the manual rotary dosing device, i.e., the upstream end of the process, is connected to the reagent storage tank via a pipeline and equipped with a corresponding valve. This allows the reagent in the reagent storage tank to enter the reagent container 201 through the reagent channel. As the device rotates, the reagent in the container 201 is transported to the reagent pipeline below. The lower end of the device, i.e., the downstream end of the process, is connected to the delivery pipe via a tee. The reagent in the container 201, due to its rotation, enters the delivery pipe and ultimately reaches the designated location in the wellbore.

[0059] In a preferred embodiment, the cross-sectional dimension of the first body 101 is larger than that of the second body 102; the central roller 2 is embedded in and rotatably connected to the first body 101.

[0060] In this embodiment, considering the sealing problem, as well as the sealing and installation problem of the end manual operation structure 4, one side of the first body 101 protrudes outward as a protrusion 105.

[0061] The center roller 2 is laterally embedded in the first body 101 along the center position of the protrusion 105, and one end of the center roller 2 is close to the outer end of the protrusion 105. A sealing space is reserved between the center roller 2 and the outer end of the protrusion 105, and a sealing component is installed in the sealing space.

[0062] Preferably, in this embodiment, a locking cap 106 is installed on the outside of the protrusion 105.

[0063] In this embodiment, the sealing assembly is fixed inside the device body 1 by the locking cap 106 at the end of the protrusion 105, and the manual operation structure 4 is guaranteed to have the effect of mechanical sealing.

[0064] Specifically, the sealing assembly of this embodiment includes two copper sleeves 301, one copper sleeve 301 abutting against the end face of the central roller 2, and the other copper sleeve 301 near the end of the protrusion 105; and a sealing ring 302 located between the two copper sleeves 301, the sealing ring 302 being clamped and fixed by the two copper sleeves 301; the sealing assembly is fixed in the sealing space by the locking cap 106.

[0065] To further improve the sealing effect, two sealing rings are provided at the connection between the central roller and the first body in this embodiment.

[0066] Preferably, the manual operation structure 4 in this embodiment includes a manual crank 401 and a transmission rod 402 connected to the manual crank 401. The transmission rod 402 passes through the locking cap 106 and the sealing assembly in sequence and is connected to the central roller 2. The manual crank 401 drives the central roller 2 to rotate through the transmission rod 402.

[0067] The cross-sectional dimension of the end of the transmission rod 402 that connects to the central roller 2 is larger than the cross-sectional dimension of the end of the transmission rod 402 that mates with the manual crank 401; the transmission rod 402 and the central roller 2 are connected by a hexagonal structure, and the transmission rod 402 and the manual crank 401 are connected by a square structure.

[0068] To further achieve quantitative drug dispensing, the size of the upper drug channel is designed to be slightly larger than that of the drug container 201. This allows the drug to enter the drug container 201 smoothly, avoiding waste, and also ensures that only the drug in the drug container 201 is conveyed into the lower drug channel when the central roller 2 is rotated. Therefore, based on the above design objectives, the size of the drug channel above the central roller 2 in the device body 1 of this embodiment is smaller than the size of the drug channel below the central roller 2.

[0069] The device in this embodiment is suitable for dispensing powders in various solid states. Furthermore, the size of the reagent container 201 can be changed according to the required dosage, thus adapting to different operating conditions. The device is pressure-resistant up to 35 MPa, and has a wide applicable pressure range.

[0070] Detailed implementation instructions:

[0071] (1) The medicine containers 201 are arranged in descending order of volume as: Type A, Type B, Type C, and Type D.

[0072] (2) Here is an example of a dosage of 100 cups of Type A medicine.

[0073] (3) Dosing time: can be determined according to the actual situation.

[0074] (4) Calculate the total amount of chemicals to be used in advance according to the required amount of chemicals to be used in construction.

[0075] (5) Connect the device to the manual dosing system;

[0076] (6) Add solid reagents;

[0077] (7) Insert the manual crank 401 and place the crank at the 0° position. The medicine will fall into the medicine container 201, completing one loading of medicine.

[0078] (8) Rotate the joystick 180° to complete the dispensing of one dose of medicine;

[0079] (9) Continue to rotate the joystick until it is back to the 0° position. The medicine will fall into the container, completing the second loading of the medicine.

[0080] (10) Rotate the joystick 180° to complete the second dose of medicine;

[0081] (11) Based on the total amount of pesticide added in this round of pesticide application, continue to repeat the above operation to complete all pesticide application work.

[0082] The manual rotary dosing device provided by the present invention, as described above, has the following beneficial effects:

[0083] The manual rotary dosing device of the present invention receives the medicine delivered by the medicine storage tank and connects to the medicine delivery pipe through a three-way valve to achieve the design purpose of quantitative dosing. The device can dosing medicine more safely, conveniently and reliably, and is easy to operate. All operations can be completed manually.

[0084] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A manually operated rotary dosing device, characterized in that, The dosing device includes: The device body (1) has a drug channel formed along its axial direction; and A central roller (2) is rotatably connected to the device body (1), the central roller (2) is partially located in the medicine channel of the device body (1), and the part of the central roller (2) located in the medicine channel has a medicine container (201); The dosing device is equipped with a manual operation structure (4) that is connected to the central roller (2) and drives the central roller (2) to rotate; The manual operation structure (4) drives the central roller (2) to rotate, thereby driving the medicine container (201) to flip over and dispensing the internal medicine into the medicine channel.

2. The manual rotary dosing device according to claim 1, characterized in that, The device body (1) includes a first body (101) and a second body (102); The second body (102) is formed at the upstream end of the first body (101) through a pipeline, and the second body (102) is connected to the reagent storage tank at the upstream end of the process through the upper male thread (103) on its outer periphery. The downstream end of the first body (101) is provided with a female thread (104), and the first body (101) is connected to the drug delivery pipe at the downstream end of the process through the female thread (104). The medicine in the medicine storage box is delivered into the medicine container (201) through a pipe.

3. The manual rotary dosing device according to claim 2, characterized in that, The cross-sectional dimension of the first body (101) is larger than the cross-sectional dimension of the second body (102); The central roller (2) is embedded in and rotatably connected to the first body (101).

4. The manual rotary dosing device according to claim 3, characterized in that, One side of the first body (101) protrudes outward to form a protrusion (105); The central roller (2) is laterally embedded in the first body (101) along the center position of the protrusion (105), and one end of the central roller (2) is close to the outer end of the protrusion (105). A sealing space is reserved between the central roller (2) and the outer end of the protrusion (105), and a sealing component is installed in the sealing space.

5. The manual rotary dosing device according to claim 4, characterized in that, A locking cap (106) is installed on the outside of the protrusion (105).

6. The manual rotary dosing device according to claim 5, characterized in that, The sealing assembly includes: Two copper sleeves (301), one of which rests against the end face of the central roller (2), and the other of which is near the end of the protrusion (105); and A sealing ring (302) is located between the two copper sleeves (301), and the sealing ring (302) is clamped and fixed by the two copper sleeves (301); The sealing assembly is secured within the sealing space by the locking cap (106).

7. The manual rotary dosing device according to claim 4, characterized in that, Two sealing rings (303) are provided at the connection between the central roller (2) and the first body (101).

8. The manual rotary dosing device according to claim 6, characterized in that, The manual operation structure (4) includes: Manual crank (401); and A transmission rod (402) connected to the manual crank (401) passes through the locking cap (106) and the sealing assembly in sequence and is connected to the center roller (2); The manual crank (401) drives the central roller (2) to rotate via the transmission rod (402).

9. The manual rotary dosing device according to claim 8, characterized in that, The cross-sectional dimension of the end of the transmission rod (402) connected to the central roller (2) is larger than the cross-sectional dimension of the end of the transmission rod (402) that mates with the manual crank (401); The transmission rod (402) is connected to the central roller (2) via a hexagonal structure, and the transmission rod (402) is connected to the manual crank (401) via a quadrangular structure.

10. The manual rotary dosing device according to claim 3, characterized in that, The size of the drug channel on the device body (1) above the central roller (2) is smaller than the size of the drug channel below the central roller (2).

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