Portable closed dosing device and method

Abstract

The invention discloses a portable closed dosing tool and method.The tool comprises a liquid storage container, a blocking cover and a shoulder strap are arranged on the liquid storage container, and a movable hole is formed in the blocking cover; the end part of the liquid medicine pushing rod penetrates through the movable hole, extends into the liquid storage container and is provided with a piston; the first connector is arranged at the end of the liquid storage container and communicated with the interior of the liquid storage container, and a valve is installed on the first connector. The sealing cover is provided with a gas circulation hole and a second connector, the top of the gas circulation hole is connected with a plug, the second connector is connected with the first connector in a pluggable mode, and the end of the second connector penetrates through the interior of the sealing cover, extends to the bottom of the sealing cover and is provided with a dosing pipe. The dosing tool can provide a completely closed working environment, ensures that the odoriferous agent cannot be diffused outwards, and overcomes the technical defects that in the prior art, in the odoriferous agent adding process through a measuring cylinder or a beaker, a large amount of odoriferous agent volatilizes in air and is not prone to being diffused, the body of an operator is injured, and the odoriferous agent is flammable and explosive.

Description

Technical Field

[0001] This invention belongs to the field of drug dosing device technology, specifically relating to a portable, sealed drug dosing device and method. Background Technology

[0002] In the Tarim Oilfield production line, to facilitate development, natural gas purification and treatment plants, staff apartments, and canteens are generally built simultaneously in the Gobi Desert. Low-pressure fuel tanks are installed in the natural gas purification and treatment plants. Downstream of the low-pressure fuel tanks is the apartment and canteen. Odor-adding devices are installed on the fuel gas pipeline from the low-pressure fuel tanks to the apartment. When the liquid level inside the odor-adding device is found to be insufficient, odorant needs to be manually added to the odor-adding device periodically.

[0003] Currently, due to the lack of a dedicated dosing device, operators typically pour the odorant into a graduated cylinder or beaker with volume measurement capabilities before adding it to the odorizing device on the pipeline. However, throughout the entire process of adding and removing the odorant, it remains in a non-sealed state, causing a large amount to evaporate into the air and become difficult to dissipate. Even at a concentration of 0.01 ppm, it can still be smelled. Furthermore, tetrahydrothiophene is slightly toxic and can cause serious pollution if it remains on clothing, and can cause certain health problems if inhaled. In addition, the odorant is flammable and explosive, and can cause fires and explosions if it comes into contact with open flames in natural gas processing plants. Summary of the Invention

[0004] This invention provides a portable, sealed dosing device and method to address the technical defects of existing technologies that use measuring cylinders or beakers during the odorant addition process. These technologies cannot achieve sealed dosing, resulting in a large amount of odorant evaporating into the air, which is difficult to dissipate and causes physical harm to operators and is flammable and explosive.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] Firstly, a portable, closed-loop dosing tool is provided, comprising:

[0007] A liquid storage container, which is equipped with a sealing cap and a shoulder strap, wherein the sealing cap has a movable hole;

[0008] A liquid delivery rod, the end of which extends through the movable hole into the liquid storage container and is equipped with a piston;

[0009] A first connector is located at the end of the liquid storage container and communicates with the inside of the liquid storage container. A valve is installed on the first connector.

[0010] A sealing cap is provided with a gas flow hole and a second connector. A plug is connected to the top of the gas flow hole. The second connector is pluggable to the first connector. The end of the second connector extends from the inside of the sealing cap to the bottom of the sealing cap and is provided with a dosing tube.

[0011] Furthermore, the liquid storage container, the liquid push rod, the piston, and the valve are all made of corrosion-resistant high-molecular-weight polyethylene material.

[0012] Furthermore, the liquid storage container has graduations on its outer side.

[0013] Furthermore, the liquid storage container has a tubular structure.

[0014] Furthermore, the sealing cap and the dosing tube are made of polytetrafluoroethylene (PTFE).

[0015] Furthermore, the sealing cap has a conical structure, and the gas flow hole and the second connector are sequentially and alternately arranged on the top of the sealing cap.

[0016] Furthermore, the top circumference of the sealing cap is 7cm, and the bottom circumference is 3cm.

[0017] Furthermore, the plug is plugged into the gas flow hole.

[0018] Furthermore, the plug is screwed to the gas flow hole.

[0019] Secondly, a closed-loop dosing method is provided, the method being performed using the dosing tool described above, comprising:

[0020] Preset the dosage of the medicine and install the sealing cap on the top of the medicine tank;

[0021] Connect the first connector to the second connector installed on the sealing cap, open the plug, and pump the agent from the agent tank into the storage container according to the preset agent dosage, and close the valve on the first connector;

[0022] Install the sealing cap on the odorizing device, open the valve on the first connector, and use the liquid pusher rod to push the medicine in the storage container into the odorizing device.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. During the odorant dispensing process, the sealing cap effectively seals the odorant container, while the storage container, through the combined action of the liquid push rod, the first connector, and the second connector, removes and stores the odorant from the container. Simultaneously, the piston on the liquid push rod and the valve on the first connector seal the passage, preventing odorant from escaping. Secondly, when adding odorant to the odorizing device, the sealing cap seals the dosing port, preventing odorant from escaping. During odorant dispensing or addition, this dosing tool provides a completely sealed working environment, ensuring that the odorant cannot diffuse outwards. This solves the technical defects of existing technologies that use measuring cylinders or beakers for odorant addition, which cannot achieve a sealed dosing process, resulting in a large amount of odorant evaporating into the air, causing operator injury and flammability / explosion.

[0025] 2. Due to the excellent wear resistance of high molecular weight polyethylene, storage containers and related components can maintain good surface finish and dimensional stability during long-term use, reducing the risk of leakage or performance degradation caused by wear, significantly extending service life, and reducing replacement frequency and maintenance costs. Secondly, storage containers can safely store various liquids without worrying about container corrosion, thus ensuring the purity and safety of the liquids. Finally, high molecular weight polyethylene is recyclable, meeting the requirements of environmental protection and sustainable development, reducing energy consumption and environmental pollution.

[0026] 3. The presence of graduations allows operators to visually observe the volume of the odorous medicine in the storage container, strictly control the amount of medicine taken or added, reduce errors caused by inaccurate measurement, and ensure accuracy and reliability.

[0027] 4. Tubular structures facilitate liquid flow, reduce flow resistance and the possibility of eddy current generation, help reduce energy consumption, improve liquid transport efficiency, and reduce vibration and noise caused by hydrodynamic instability. With the same amount of material, tubular structures typically have higher bending and torsional stiffness due to their cross-sectional shape, reducing the risk of leakage due to structural failure.

[0028] 5. Polytetrafluoroethylene has extremely strong chemical stability and can resist the corrosion of almost all strong acids, strong alkalis, strong oxidants and organic solvents. This allows the sealing cap and dosing tube to maintain their structural integrity and sealing performance when in contact with various corrosive liquids, preventing liquid leakage or contamination.

[0029] 6. When the sealing cap fits tightly with the dosing port of the odorant container or dosing device, the conical surface design helps to create a more uniform sealing pressure distribution and reduce the risk of leakage. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the liquid storage container structure in the portable sealed dosing tool provided by the present invention;

[0032] Figure 2 This is a schematic diagram of the cross-sectional structure of the sealing cap in the portable closed dosing tool provided by the present invention;

[0033] Figure 3 This is a schematic diagram of the operation of the portable closed-loop dosing tool provided by the present invention;

[0034] Figure 4 The flowchart of the closed-loop dosing method provided by the present invention;

[0035] The components include: 1. Liquid storage container; 101. Sealing cap; 2. Liquid push rod; 3. Piston; 4. First connector; 5. Valve; 6. Shoulder strap; 7. Sealing cap; 8. Plug; 9. Second connector; 10. Dosing pipe; 11. Scale; 12. Low-pressure fuel gas tank; 13. Odor-adding device; 14. Canteen. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0042] In the Tarim Oilfield production line, to facilitate development, natural gas purification and treatment plants, staff apartments, and canteens are generally built simultaneously in the Gobi Desert. Low-pressure fuel tanks are installed in the natural gas purification and treatment plants. Downstream of the low-pressure fuel tanks is the apartment and canteen. An odorizing device 13 is installed on the fuel pipeline from the low-pressure fuel tanks to the apartment. When the liquid level inside the odorizing device 13 is found to be insufficient, odorant needs to be manually added to the odorizing device 13 periodically.

[0043] Currently, due to the lack of a dedicated dosing device, operators typically pour the odorant solution into a measuring cylinder or beaker with volume measurement function before adding it to the odorizing device 13. This is done by first pouring the solution into the cylinder or beaker and then into the dosing port of the odorizing device 13 on the pipeline. However, throughout the entire process of adding and removing the odorant, it remains in a non-sealed state, causing a large amount of odorant to evaporate into the air and become difficult to dissipate. Even at a concentration of 0.01 ppm, it can still be smelled. Furthermore, tetrahydrothiophene is slightly toxic; if it remains on clothing, it can cause serious pollution, and if inhaled, it can cause harm to the body. Additionally, the odorant solution is flammable and explosive, and if it encounters an open flame in a natural gas processing plant, it can cause a fire or explosion.

[0044] To address the aforementioned technical deficiencies, the inventors have provided a portable, sealed dosing device and method.

[0045] The present invention will now be described in further detail with reference to the accompanying drawings:

[0046] Example 1:

[0047] like Figure 1 and Figure 2As shown, in a first aspect of the present invention, a portable sealed dosing device is provided, including a liquid storage container 1 for storing odorant liquid. The liquid storage container 1 is provided with a sealing cap 101 and a shoulder strap 6. The sealing cap 101 is detachably installed on the top of one end of the liquid storage container 1 to seal the odorant liquid in the liquid storage container 1 and prevent the odorant liquid from leaking out. At the same time, in order to store the odorant liquid in the liquid storage container 1 and deliver the odorant liquid to the odorizing device 13, a movable hole is provided on the sealing cap 101. The end of the liquid push rod 2 extends through the movable hole into the liquid storage container 1 and is provided with a piston 3. One end of the shoulder strap 6 is connected to the outside of one end of the liquid storage container 1, and the other end of the shoulder strap 6 is connected to the outside of the other end of the liquid storage container 1. The shoulder strap 6 provides convenience for operators to do dosing operations and can be carried with them. The first connector 4 is located at the top of the other end of the liquid storage container 1 and communicates with the inside of the liquid storage container 1. The first connector 4 is used to deliver odorant liquid into the liquid storage container 1 or to output odorant liquid from the liquid storage container 1. A valve 5 is installed on the first connector 4, which is used to block or open the odorant liquid flow channel between the first connector 4 and the liquid storage container 1. The sealing cover 7 has a gas flow hole and a second connector 9. A plug 8 is connected to the top of the gas flow hole. In one embodiment, the second connector 9 is plugged into the first connector 4. The plugging and unplugging connection can shorten the disassembly or installation time of the plug 8 and improve work efficiency. In another embodiment, the first connector 4 and the second connector 9 can also be connected by a threaded connection to further improve the sealing performance during the extraction or dosing process and ensure that there is no possibility of leakage of odorant liquid. The end of the second connector 9 passes through the inside of the sealing cover 7 and extends to the bottom of the sealing cover 7, where a dosing tube 10 is provided. During the dispensing of the odorant solution using this dosing tool, the sealing cap 7 effectively seals the odorant container, while the storage container 1, through the combined action of the dispensing push rod 2, the first connector 4, and the second connector 9, removes and stores the odorant solution from the container. Simultaneously, the piston 3 on the dispensing push rod 2 and the valve 5 on the first connector 4 seal the odorant solution flow channel formed between the storage container 1 and the first connector 4, preventing the odorant solution from escaping. Furthermore, when adding the odorant solution to the dosing device 13… The sealing cap 7 can block the dosing port on the odorizing device 13, preventing the odorant solution from escaping through the dosing port. Therefore, during the odorant dispensing or addition process, this dosing tool provides a completely sealed working environment, ensuring that the odorant cannot diffuse outwards. This solves the technical defects of existing technologies that use measuring cylinders or beakers for odorant addition, which cannot achieve a sealed dosing process, resulting in a large amount of odorant solution evaporating into the air, causing operator injury and flammability / explosion. This standardizes the odorant dispensing and addition procedures. Figure 1As shown, the liquid storage container 1, the liquid push rod 2, the piston 3, and the valve 5 are all made of corrosion-resistant high-molecular-weight polyethylene. Due to the excellent wear resistance of high-molecular-weight polyethylene, these components can maintain good surface finish and dimensional stability during long-term use, reducing the risk of leakage or performance degradation caused by wear, significantly extending their service life, and lowering replacement frequency and maintenance costs. Secondly, this allows the liquid storage container 1 to safely store various liquids without worrying about corrosion, thus ensuring the purity and safety of the liquids. Finally, the high-molecular-weight polyethylene material is recyclable, meeting the requirements of environmental protection and sustainable development, reducing energy consumption and environmental pollution.

[0048] like Figure 1 As shown, a scale 11 is provided on the outside of the storage container 1. This scale allows operators to visually observe the volume of the odorant solution inside the container, enabling strict control of the dosage and amount of odorant solution taken or added. This reduces errors caused by inaccurate dosage and ensures accuracy and reliability. Furthermore, during nighttime operations, a self-illuminating LED light strip can be installed on the outside of the storage container 1. The height of the light strip from the end of the container 1 is used as the measurement for the amount of odorant solution drawn, and the light source from the LED light strip is used to observe whether the amount of odorant solution drawn into the container 1 meets the operational requirements. Figure 1 As shown, the liquid storage container 1 has a tubular structure. During the storage of the odorant liquid, the tubular structure facilitates the liquid flow of the odorant, reduces flow resistance and the possibility of eddy current generation, helps reduce energy consumption, improves liquid transfer efficiency, and reduces vibration and noise caused by hydrodynamic instability. With the same amount of material, the tubular structure, due to its cross-sectional shape, typically has higher bending and torsional stiffness, reducing the risk of leakage due to structural failure. Figure 2 As shown, the sealing cap 7 and the dosing tube 10 are made of polytetrafluoroethylene (PTFE). PTFE has extremely strong chemical stability and can resist the corrosion of almost all strong acids, strong alkalis, strong oxidants and organic solvents. This allows the sealing cap 7 and the dosing tube 10 to maintain their structural integrity and sealing performance when in contact with various corrosive liquids, preventing liquid leakage or contamination.

[0049] As shown in Figure 2, the sealing cap 7 has a conical structure. Gas flow holes and the second connector 9 are sequentially spaced at the top of the sealing cap 7. The gas flow hole has a small circumferential diameter. This is to allow a small amount of air to enter the odorant liquid tank through the gas flow hole after the plug 8 is removed during drug dispensing or addition, preventing negative pressure and facilitating the extraction of the odorant liquid. Similarly, during the addition of drug to the odorizing device 13, the plug 8 can be removed to expel a small amount of air from the dosing port of the odorizing device 13, maintaining the ambient pressure around the dosing port and facilitating the addition of the odorant liquid. The second connector 9 connects to the first connector 4 to form a drug dispensing and addition channel, facilitating the extraction, storage, or addition of the odorant liquid. The dosing tube 10 at the end of the second connector 9 is a flexible tube. Both the sealing cap 7 and the dosing tube 10 are made of polytetrafluoroethylene (PTFE). It is worth noting that the sealing cap 7 has a circumferential diameter of 7cm at the top and 3cm at the bottom, making it suitable for a wide range of openings.

[0050] like Figure 2 As shown, the plug 8 can be connected to the gas flow hole by plugging or screwing. When the plug 8 is connected to the gas flow hole by plugging, the efficiency of installing or removing the plug 8 can be improved, which facilitates the operation of taking or adding medicine. When the plug 8 is connected to the gas flow hole by screwing, the firmness and reliability of the connection between the two are enhanced.

[0051] Example 2:

[0052] like Figure 4 As shown, in a second aspect of the present invention, a closed-loop dosing method is provided, the method being performed using the dosing tool described above, comprising:

[0053] S101. Preset the dosage of the agent and install the sealing cap on the top of the agent tank; For example, in order to accurately add the odorant liquid into the odorizing device 13, before taking and adding the agent, first set the required amount of liquid according to the operation requirements, then open the odorant liquid tank, put the sealing cap 7 into the opening of the odorant liquid tank, and use the sealing cap 7 to seal the odorant liquid tank to prevent the odorant liquid in the odorant liquid tank from leaking out.

[0054] S102. Connect the first connector to the second connector installed on the sealing cap, open the plug, and draw the agent from the agent tank into the storage container according to the preset agent dosage, and close the valve on the first connector; for example, connect the first connector 4 and the second connector 9 by plugging and unplugging, so that the first connector 4 and the second connector 9 form a flow channel, and then remove the plug 8. At this time, pull the agent push rod 2 in the storage container 1 towards the end of the storage container 1 away from the first connector 4. The odorant agent in the odorant tank flows into the storage container 1 through the dosing tube 10 at the bottom of the sealing cap 7. When the odorant agent content in the storage container 1 reaches the preset content value, manually close the valve 5 on the first connector 4 to block the flow channel between the storage container 1 and the first connector 4, thereby completing the drug extraction.

[0055] S103. Install the sealing cap on the odorizing device, open the valve on the first connector, and use the liquid pusher rod to push the agent in the storage container into the odorizing device. For example, as... Figure 3 As shown, an odorizing device 13 is installed between the low-pressure fuel gas tank 12 and the canteen 14, with the low-pressure fuel gas tank 12 located upstream and the canteen 14 located downstream. When adding medicine to the odorizing device 13, the cover plate on the medicine inlet of the odorizing device 13 is removed, the sealing cover 7 is installed in the medicine inlet, the valve 5 on the first connector 4 is opened and the plug 8 is removed to restore the flow of the flow channel between the liquid storage container 1 and the first connector 4. The medicine push rod 2 is pushed towards the first connector 4, and the odorant liquid in the liquid storage container 1 flows sequentially through the first connector 4, the second connector 9 and the medicine adding pipe 10 into the odorizing device 13 to complete the medicine adding operation.

[0056] In summary, the embodiments of the present invention are only illustrated by taking the addition of odorant solution into the odorization device 13 in oil extraction as an example. The present invention is not limited to the field of oil extraction technology. As needed, the present invention can also be used for chemical dosing operations in other fields.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading the present invention, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

Claims

1. A portable, sealed dosing tool, characterized in that, include: A liquid storage container (1) is provided with a sealing cap (101) and a shoulder strap (6), wherein the sealing cap (101) is provided with an movable hole; A liquid push rod (2) is provided with a piston (3) at the end of which extends through the movable hole into the liquid storage container (1). The first connector (4) is located at the end of the liquid storage container (1) and communicates with the inside of the liquid storage container (1). A valve (5) is installed on the first connector (4). A sealing cap (7) is provided with a gas flow hole and a second connector (9). A plug (8) is connected to the top of the gas flow hole. The second connector (9) is plugged into and plugged into the first connector (4). The end of the second connector (9) extends from the inside of the sealing cap (7) to the bottom of the sealing cap (7) and is provided with a dosing tube (10).

2. The dosing tool according to claim 1, characterized in that, The liquid storage container (1), the liquid push rod (2), the piston (3), and the valve (5) are all made of corrosion-resistant high molecular weight polyethylene material.

3. The dosing tool according to claim 1 or 2, characterized in that, The liquid storage container (1) has a scale (11) on its outer side.

4. The dosing tool according to claim 3, characterized in that, The liquid storage container (1) has a tubular structure.

5. The dosing tool according to claim 1, characterized in that, The sealing cap (7) and the dosing tube (10) are made of polytetrafluoroethylene.

6. The dosing tool according to claim 1, characterized in that, The sealing cover (7) has a conical structure, and the gas flow hole and the second connector (9) are arranged at intervals on the top of the sealing cover (7).

7. The dosing tool according to claim 6, characterized in that, The sealing cap (7) has a top circumference diameter of 7cm and a bottom circumference diameter of 3cm.

8. The dosing tool according to claim 1, characterized in that, The plug (8) is plugged into the gas flow hole.

9. The dosing tool according to claim 1, characterized in that, The plug (8) is screwed to the gas flow hole.

10. A closed-loop dosing method, characterized in that, The method is performed using the dosing tool according to any one of claims 1-9, and includes: Preset the dosage of the medicine and install the sealing cap on the top of the medicine tank; Connect the first connector to the second connector installed on the sealing cap, open the plug, and pump the agent from the agent tank into the storage container according to the preset agent dosage, and close the valve on the first connector; Install the sealing cap on the odorizing device, open the valve on the first connector, and use the liquid pusher rod to push the medicine in the storage container into the odorizing device.

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