Electrode installation tool of electromagnetic flowmeter

Abstract

The utility model provides an electrode installation tool of an electromagnetic flowmeter. The electrode installation tool comprises a supporting structure, the adjusting structure comprises a restraining piece and an adjusting rod, the adjusting rod is movably connected with the supporting structure in the axial direction of the adjusting rod, and the restraining piece is connected with the adjusting rod so as to restrain the axial movement of the adjusting rod relative to the supporting structure; the connecting structure is connected with the supporting structure, the connecting structure can move relative to the supporting structure in the axial direction of the adjusting rod, the connecting structure is connected with the adjusting rod, and the connecting structure is used for being connected with an electrode. The utility model can ensure that the electrode is vertical to the conduit, and meanwhile, the electrode is in close contact with the mounting hole on the wall of the conduit, thereby improving the sealing property of the electrode mounting position.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic flowmeters, in particular to an electrode installation tool for electromagnetic flowmeters. Background Art

[0002] The electromagnetic flowmeter is a new type of flow measurement instrument that emerged rapidly in the 1950s and 1960s with the development of electronic technology. It is an instrument that mainly applies the Faraday electromagnetic induction principle and measures the flow rate of conductive fluid according to the electromotive force generated when the conductive fluid passes through an external magnetic field. It can solve the problem that other flow meters are not easy to apply. At present, it has been widely used in industrial processes, mainly in the following occasions: Industrial production: electromagnetic flowmeters are widely used in flow measurement in chemical, petroleum, metallurgy, textile, food, pharmaceutical and other industries, and can be used to measure the flow of various liquids, steam and gas; sewage treatment: electromagnetic flowmeters can be used for flow measurement in sewage treatment plants, and can measure the flow of liquids such as sewage, wastewater, sludge, etc., to help control the flow and quality in the sewage treatment process; tap water supply: electromagnetic flowmeters can be used for flow measurement in tap water supply systems, and can measure the flow of liquids such as tap water, water supply, circulating water, etc., to help control the supply and quality of water; thermal system: electromagnetic flowmeters can be used for flow measurement in thermal systems, and can measure the flow of liquids such as hot water and steam, to help control the supply and quality of thermal systems; petrochemical: electromagnetic flowmeters can be used for flow measurement in the petrochemical industry, and can measure the flow of various chemical liquids, to help control the flow and quality in the chemical production process.

[0003] The structure of the electromagnetic flowmeter is mainly composed of the magnetic circuit system, conduit, electrode, shell, lining and converter. Usually, an insulating lining is set on the inner wall of the conduit. The installation position of the electrode should be in the vertical direction of the pipeline. Figure 2 , to prevent sediment from accumulating on it and affecting the measurement accuracy. The electrode is generally made of non-magnetic stainless steel and is required to be flush with the insulating lining in the conduit so that the fluid can pass through without obstruction. The electrode of the electromagnetic flowmeter is an important part of the electromagnetic flowmeter. It is an important component for measuring the electromotive force generated by the electromagnetic coil in the conductive medium. Its function is to draw out the induced electromotive force from the conduit. The conductive medium to be measured can be various corrosive liquids, so the sealing of the electrode is very important.

[0004] The existing electrode packaging form is that the electrode structure is like a round head screw, the round head of the electrode is pressed on the surface of the insulating lining, and the other end of the electrode passes through the mounting hole on the catheter wall and is threadedly connected to a nut, so that the electrode and the mounting hole are tightened by the nut, and the electrode and the mounting hole need to maintain close contact, so as to effectively prevent the fluid from leaking out of the catheter. Usually when installing the electrode, the electrode is pulled out of the catheter wall with needle-nosed pliers, which often causes the electrode to be not perpendicular to the catheter, and the connection between the electrode and the mounting hole cannot be guaranteed to be tight, which is easy to cause potential deviation or even fluid leakage, thereby failing to ensure the accuracy of the measurement results and the cleanliness of the working environment. Utility Model Content

[0005] The utility model aims to provide an electrode installation tool for an electromagnetic flowmeter, which can ensure that the electrode is perpendicular to the conduit, and at the same time keep the electrode in close contact with the installation hole on the conduit wall, thereby improving the sealing of the electrode installation location.

[0006] In order to achieve the above object, the utility model provides an electrode installation tool for an electromagnetic flowmeter, which includes:

[0007] Support structure;

[0008] An adjustment structure, comprising a restraining member and an adjustment rod, wherein the adjustment rod is movably connected to the support structure along its axial direction, and the restraining member is connected to the adjustment rod to restrain the axial movement of the adjustment rod relative to the support structure;

[0009] A connecting structure, wherein the connecting structure is connected to the supporting structure and can move relative to the supporting structure along the axial direction of the adjusting rod. The connecting structure is connected to the adjusting rod and is used to connect electrodes.

[0010] Optionally, the restraining member is rotatable relative to the supporting structure, and the restraining member is threadedly connected to the adjusting rod.

[0011] Optionally, the supporting structure includes a first base and at least two guide columns fixedly connected to the first base, the guide columns are parallel to the adjustment rod, and the adjustment rod passes through the first base; the connecting structure is movably connected to the guide columns.

[0012] Optionally, a supporting foot is provided at one end of the guide column other than the end connected to the first base.

[0013] Optionally, the connecting structure includes a connecting rod and a connecting assembly, the axial direction of the connecting rod is parallel to the adjusting rod, the connecting rod is rotatably connected to the connecting assembly, the connecting rod is used to be threadedly connected to the electrode, the connecting assembly is connected to the adjusting rod, and the connecting assembly is movably connected to the supporting structure.

[0014] Optionally, the connecting rod and the adjusting rod are coaxial.

[0015] Optionally, the connecting assembly includes a second base, the second base is movably connected to the supporting structure, and the second base is respectively connected to the adjusting rod and the connecting rod.

[0016] Optionally, a receiving groove is provided on the second base, the receiving groove penetrates the second base along the axial direction of the adjusting rod, the receiving groove penetrates one side of the second base along the radial direction of the adjusting rod, and the connecting rod passes through the receiving groove.

[0017] Optionally, the connecting assembly further includes a third base and a pull rod, the third base is connected to the second base via the pull rod, and the third base is fixedly connected to the adjusting rod.

[0018] Optionally, the connection structure further includes a sleeve, which is movably sleeved on the connection rod, and the sleeve is used to screw the first nut on the electrode.

[0019] As configured above, when in use, the utility model is supported on the catheter of the electromagnetic flowmeter by the supporting structure, the electrode is connected by the connecting structure, and the position of the adjusting rod along its own axis is adjusted by the constraint. The movement of the adjusting rod will drive the connecting structure to move, thereby pulling the electrode, and finally tightening the electrode. After tightening, the first nut on the electrode is tightened to lock the position. Using the utility model to install the electrode can ensure that the electrode is perpendicular to the catheter, and at the same time, the electrode is kept in close contact with the mounting hole on the catheter wall, improving the sealing of the electrode installation. On the one hand, it can avoid the deviation of the electric potential and ensure the accuracy of the measurement accuracy and the accuracy of the measurement results. On the other hand, it can avoid the leakage of fluid from the catheter to pollute the working environment, ensuring the cleanliness of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Those skilled in the art should understand that the drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.

[0021] Figure 1 It is a schematic diagram of an electrode installation tool for an electromagnetic flowmeter according to an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of an electrode installation tool and electrodes of an electromagnetic flowmeter according to an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of a connecting rod of an electrode installation tool for an electromagnetic flowmeter according to an embodiment of the utility model;

[0024] Figure 4It is a schematic diagram of a sleeve of an electrode mounting tool of an electromagnetic flowmeter according to an embodiment of the utility model.

[0025] The reference numerals are as follows:

[0026] 1-adjusting structure; 11-constraint; 12-adjusting rod; 2-first base; 3-guide column; 4-catheter; 5-electrode; 6-connecting assembly; 61-second base; 611-accommodating groove; 62-third base; 63-pull rod; 7-sleeve; 71-inner hole; 72-hexagonal hole; 73-force section; 8-connecting rod; 81-head; 82-rod; 9-first nut. DETAILED DESCRIPTION

[0027] In this document, unless otherwise specified, the terms "upper", "lower", "left", "right", "inside", "outside", "front", "back", "top", "bottom", etc. are used to indicate directions or positional relationships based on the drawings. 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 direction and operation. Therefore, they cannot be understood as limiting the present invention.

[0028] The following will describe the specific implementation of the utility model in more detail with reference to the schematic diagram. The advantages and features of the utility model will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in exact proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0029] The preferred embodiments of the present utility model are given below in conjunction with the accompanying drawings and described in detail.

[0030] Figure 1 Schematic diagram of an electrode installation tool for an electromagnetic flowmeter according to an embodiment of the utility model. Figure 2 This is a schematic diagram of the electrode installation tool and electrodes of the electromagnetic flowmeter of an embodiment of the utility model. Please refer to Figure 1 and Figure 2 The embodiment of the utility model provides an electrode installation tool for an electromagnetic flowmeter, including a supporting structure, an adjusting structure 1 and a connecting structure.

[0031] The adjustment structure 1 includes a restraining member 11 and an adjusting rod 12. The adjusting rod 12 is movably connected to the supporting structure along its own axial direction. The restraining member 11 is connected to the adjusting rod 12 to restrain the axial movement of the adjusting rod 12 relative to the supporting structure.

[0032] The supporting structure includes a first base 2 and at least two guide columns 3 fixedly connected to the first base 2. The guide columns 3 are parallel to the adjustment rod 12. It can be understood that when the tooling of this embodiment is used, the guide columns 3 are perpendicular to the axis of the conduit 4 of the electromagnetic flowmeter, so that the direction of pulling the electrode 5 can be perpendicular to the axis of the conduit 4. The adjustment rod 12 passes through the first base 2;

[0033] Further, the constraint member 11 can rotate relative to the supporting structure, and the constraint member 11 is threadedly connected to the adjustment rod 12. Specifically, in this embodiment, the constraint member 11 can be a nut, and the adjustment rod 12 can be a screw. It can be understood that when the constraint member 11 is rotated and the axial position of the constraint member 11 remains unchanged, the adjustment rod 12 will move axially.

[0034] The connecting structure is connected to the supporting structure, and the connecting structure can move relative to the supporting structure along the axial direction of the adjusting rod 12. The connecting structure is connected to the adjusting rod 12, and the connecting structure is used to connect the electrode 5. Further, the connecting structure is movably connected to the guide column 3. In this embodiment, the connecting structure includes a connecting rod 8 and a connecting assembly 6. The axial direction of the connecting rod 8 is parallel to the adjusting rod 12. The connecting rod 8 is rotatably connected to the connecting assembly 6. The connecting rod 8 is used to be threadedly connected to the electrode 5. It can be understood that the connecting rod 8 is coaxial with the electrode 5, and one end of the connecting rod 8 connected to the electrode 5 is provided with an internal thread. Figure 3 . The connecting assembly 6 is connected to the adjusting rod 12, and the connecting assembly 6 is movably connected to the supporting structure. Specifically, the connecting assembly 6 includes a second base 61, and the second base 61 is movably connected to the supporting structure, and the second base 61 is respectively connected to the adjusting rod 12 and the connecting rod 8. In this embodiment, the second base 61 is provided with a through hole for the guide column 3 to pass through, and the through hole is slidably matched with the guide column 3, and the second base 61 can move along the axial direction of the guide column 3, and the guide column 3 guides the movement of the second base 61, and the movement of the second base 61 is the movement of the connecting structure, so that the connecting structure moves accurately along the axial direction of the guide column 3. Because the guide column 3 is perpendicular to the axis of the catheter 4, the direction in which the connecting structure pulls the electrode 5 is also perpendicular to the axis of the catheter 4, so as to ensure the verticality of the electrode 5 and the catheter 4 after the installation is completed. Further, the connecting rod 8 and the adjusting rod 12 are coaxial to balance the force.

[0035] Preferably, the second base 61 is provided with a receiving groove 611, and the connecting rod 8 passes through the receiving groove 611. The receiving groove 611 passes through the second base 61 along the axial direction of the adjusting rod 12, and the receiving groove 611 passes through one side of the second base 61 along the radial direction of the adjusting rod 12, so as to facilitate the placing of the connecting rod 8 into the receiving groove 611 from the side. For example, the connecting rod 8 may include a rod portion 82 and a head portion 81, the diameter of the head portion 81 is larger than the diameter of the rod portion 82, the groove width of the receiving groove 611 is smaller than the diameter of the head portion 81 and larger than the diameter of the rod portion 82, one end of the rod portion 82 passes through the receiving groove 611 on the second base 61 to connect with the head portion 81, and the other end of the rod portion 82 passes through the receiving groove 611 on the second base 61 to connect with the electrode 5. The head portion 81 of the connecting rod 8 and the first base 2 are located on the same side of the second base 61, and the head portion 81 of the connecting rod 8 may be a hexagonal head for easy force application. In other embodiments, the accommodating groove 611 may only penetrate the second base 61 along the axial direction of the adjusting rod 12 , and in this case, the accommodating groove 611 is a through hole.

[0036] As configured above, when the utility model is used, it is supported on the conduit of the electromagnetic flowmeter by the supporting structure, the electrode 5 is connected by the connecting structure, and the position of the adjusting rod 12 along its own axis is adjusted by the constraint 11. The movement of the adjusting rod 12 will drive the connection structure to move, thereby pulling the electrode 5, and finally tightening the electrode 5. After tightening, the first nut 9 on the electrode 5 is tightened to lock the position. The constraint 11 in this embodiment is a nut, and the position of the adjusting rod 12 is changed by rotating the nut. This force application method is better controlled than the direct pulling with needle-nosed pliers in the prior art. Using the utility model to install the electrode 5 can ensure that the electrode 5 is perpendicular to the conduit 4, and at the same time, the electrode 5 is kept in close contact with the mounting hole on the wall of the conduit 4, and the sealing of the electrode 5 installation is improved. On the one hand, it can avoid the deviation of the potential, ensure the accuracy of the measurement accuracy and the accuracy of the measurement results, and on the other hand, it can avoid the leakage of fluid from the conduit 4 to pollute the working environment, ensuring the cleanliness of the working environment.

[0037] Preferably, a support foot 31 is provided at one end of the guide column 3 other than the end connected to the first base 2, and the support foot 31 is used to support the conduit 4. The contact surface between the support foot 31 and the conduit 4 can be an arc surface, so that the installation tool of the utility model is more stable when in use.

[0038] In this embodiment, the connecting assembly 6 further includes a third base 62 and a pull rod 63, the third base 62 is connected to the second base 61 through the pull rod 63, and the third base 62 is fixedly connected to the adjustment rod 12. Preferably, the number of the pull rods 63 is at least two, and the pull rods 63 are evenly distributed around the adjustment rod 12 to balance the force. For example, one end of the pull rod 63 is provided with a threaded section, and one end of the pull rod 63 passes through the third base 62 and is threadedly connected to the second nut, so as to achieve the connection between the pull rod 63 and the third base 62.

[0039] Preferably, you can refer to Figure 2 and Figure 4 , the connection structure also includes a sleeve 7, which can be movably sleeved on the connecting rod 8. The sleeve 7 is used to connect the first nut 9 on the electrode 5, and the operator can screw the first nut 9 through the sleeve 7. In practical applications, the position where the first nut 9 is located often does not have a space for directly using a wrench or other tools, so the sleeve 7 is provided to screw the first nut 9. It can be understood that the outer diameter of the sleeve 7 is greater than the groove width of the accommodating groove 611, the sleeve 7 and the head 81 are respectively located on both sides of the second base 61, and the inner hole 71 of the sleeve 7 is a hexagonal hole 72 at the end away from the second base 61, so as to cooperate with the first nut 9 on the electrode 5. The outer wall of the sleeve 7 is provided with a force section 73, and the force section 73 is hexagonal, so as to facilitate the use of tools to apply force.

[0040] When this embodiment is in use, after the connecting rod 8 is threadedly connected to the electrode 5, the restraining member 11 is rotated to cause the adjusting rod 12 to move axially so as to pull the electrode 5 outward from the catheter 4. After being tightened, the sleeve 7 is matched with the first nut 9 to tighten the first nut 9 to complete the installation of the electrode 5.

[0041] It should be noted that references to "one embodiment", "an embodiment", "a specific embodiment", "some embodiments", etc. in the specification only indicate that the described embodiment may include a particular feature, structure or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment. In addition, when a particular feature, structure or characteristic is described in conjunction with an embodiment, whether or not explicitly described, it is within the knowledge of a person skilled in the relevant art to implement such feature, structure or characteristic in conjunction with other embodiments.

[0042] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0043] It should also be noted that, although the present invention has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the present invention. For any technician familiar with the art, without departing from the scope of the technical solution of the present invention, the above disclosed technical content can be used to make many possible changes and modifications to the technical solution of the present invention, or modified into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

[0044] It should also be understood that, unless otherwise specified or indicated, the terms "first", "second", "third", etc. in the specification are merely used to distinguish between the various components, elements, steps, etc. in the specification, and are not used to indicate the logical relationship or sequential relationship between the various components, elements, steps, etc.

[0045] It should also be recognized that the terms described herein are only used to describe specific embodiments and are not used to limit the scope of the utility model. It must be noted that the singular forms "one" and "a kind" used herein and in the appended claims include plural references unless the context clearly indicates the opposite meaning. For example, a reference to "a step" or "a device" means a reference to one or more steps or devices, and may include secondary steps and secondary devices. All conjunctions used should be understood in the broadest sense. And, the word "or" should be understood to have a logical "or" definition, rather than a logical "exclusive or" definition, unless the context clearly indicates the opposite meaning. In addition, the implementation of the method and / or device in the embodiment of the utility model may include performing the selected task manually, automatically, or in combination.

Claims

1. An electrode installation tool for an electromagnetic flowmeter, It is characterized in that include: Support structure; An adjustment structure, comprising a restraining member and an adjustment rod, wherein the adjustment rod is movably connected to the support structure along its axial direction, and the restraining member is connected to the adjustment rod to restrain the axial movement of the adjustment rod relative to the support structure; A connecting structure, wherein the connecting structure is connected to the supporting structure and can move relative to the supporting structure along the axial direction of the adjusting rod. The connecting structure is connected to the adjusting rod and is used to connect electrodes.

2. The electrode installation tool for the electromagnetic flowmeter according to claim 1, It is characterized in that The restraining member can rotate relative to the supporting structure, and the restraining member is threadedly connected to the adjusting rod.

3. The electrode installation tool for the electromagnetic flowmeter according to claim 1, It is characterized in that The supporting structure includes a first base and at least two guide columns fixedly connected to the first base, wherein the guide columns are parallel to the adjusting rod, and the adjusting rod passes through the first base; the connecting structure is movably connected to the guide columns.

4. The electrode installation tool for the electromagnetic flowmeter as claimed in claim 3, It is characterized in that The guide column is different from the end connected to the first base and is provided with a supporting foot.

5. The electrode installation tool for the electromagnetic flowmeter according to claim 1, It is characterized in that The connecting structure includes a connecting rod and a connecting assembly, wherein the axial direction of the connecting rod is parallel to the adjusting rod, the connecting rod is rotatably connected to the connecting assembly, the connecting rod is used to be threadedly connected to the electrode, the connecting assembly is connected to the adjusting rod, and the connecting assembly is movably connected to the supporting structure.

6. The electrode installation tool for the electromagnetic flowmeter according to claim 5, It is characterized in that The connecting rod and the adjusting rod are coaxial.

7. The electrode installation tool for the electromagnetic flowmeter according to claim 5, It is characterized in that The connecting assembly includes a second base, the second base is movably connected to the supporting structure, and the second base is respectively connected to the adjusting rod and the connecting rod.

8. The electrode installation tool for the electromagnetic flowmeter according to claim 7, It is characterized in that The second base is provided with a receiving groove, the receiving groove penetrates the second base along the axial direction of the adjusting rod, the receiving groove penetrates one side of the second base along the radial direction of the adjusting rod, and the connecting rod passes through the receiving groove.

9. The electrode installation tool for the electromagnetic flowmeter according to claim 7, It is characterized in that The connecting assembly also includes a third base and a pull rod, the third base is connected to the second base via the pull rod, and the third base is fixedly connected to the adjusting rod.

10. The electrode installation tool for the electromagnetic flowmeter according to claim 5, It is characterized in that The connection structure further comprises a sleeve, which is movably sleeved on the adjusting rod connecting rod, and is used to connect the first nut on the electrode.

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