Auxiliary equipment for zero drift adjustment of vortex shedding flowmeter

Abstract

The utility model discloses auxiliary equipment for zero drift adjustment of a vortex shedding flowmeter. The auxiliary equipment comprises a grounding base; the extension bracket is telescopically arranged in the grounding base; the clamping part is arranged at the end part of the extension bracket and is used for placing the vortex shedding flowmeter; the adjusting assembly is arranged on the grounding base and used for adjusting the height of the extension support so that the vortex shedding flowmeter can be separated from the pipeline to conduct zero drift adjustment. When the device is used, the ground contact base is arranged on the side edge of a pipeline and makes contact with the ground, then the vortex shedding flowmeter is detached from the pipeline and placed in the clamping part, and finally the height of the extension support is adjusted, so that the vortex shedding flowmeter is separated from the pipeline and does not make contact with the pipeline. According to the vortex shedding flowmeter, the to-be-tested component is not required to be held by a hand in the null drift process, and grounding and auxiliary null drift adjustment in the null drift adjustment process are facilitated under the condition of isolating external interference in the null drift process.

Description

TECHNICAL FIELD

[0001] The utility model relates to zero drift adjustment auxiliary equipment technical field especially relates to a kind of auxiliary equipment for vortex flowmeter zero drift adjustment. BACKGROUND

[0002] Vortex flowmeter is a kind of widely used in industrial production to accurately measure the flow rate of fluid in closed pipeline velocity type flowmeter, the release frequency of vortex column is proportional to the average flow velocity of fluid, by detecting vortex frequency, the flow of fluid in pipeline can be calculated using corresponding formula.

[0003] The detection element of vortex flowmeter, such as piezoelectric crystal, capacitive sensor, etc., will gradually age, wear and tear due to the influence of fluid scouring, corrosion and temperature, pressure and other environmental factors during long-term use, resulting in changes in its performance, zero drift, and the existing vortex flowmeter is difficult to isolate external interference during zero drift adjustment, resulting in errors in zero drift adjustment, which can easily affect the subsequent use precision. SUMMARY

[0004] The utility model aims at the above-mentioned deficiency, and provides a kind of auxiliary equipment for vortex flowmeter zero drift adjustment.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a kind of auxiliary equipment for vortex flowmeter zero drift adjustment, comprising:

[0006] Ground contact base;

[0007] Extension bracket, which is telescopically arranged in the ground contact base;

[0008] Clamping part, arranged at the end of the extension bracket, for placing the vortex flowmeter;

[0009] Adjusting assembly, arranged on the ground contact base, for adjusting the height of the extension bracket, so that the vortex flowmeter is separated from the pipeline for zero drift adjustment.

[0010] Further, it further comprises ground contact line group, and the ground contact line group is arranged on the ground contact base;

[0011] One end of the ground contact line group is provided with a ground contact end, and the other end is provided with a connecting end connected with the sensor of the vortex flowmeter.

[0012] Further, the ground contact base is internally provided with a telescopic cavity corresponding to the extension bracket;

[0013] The telescopic cavity is further provided with an adjusting cavity.

[0014] Further, the extension support is provided with an adjusting slider, which is matched with the adjusting cavity and can slide up and down in the adjusting cavity along the height direction.

[0015] Further, the adjusting assembly comprises two groups of limiting guide rods, which are arranged in the adjusting cavity and penetrate through the adjusting slider.

[0016] One group of the limiting guide rods is provided with an adjusting screw thread, the end of which extends to the outside of the ground-contacting base and is provided with an adjusting knob, and the adjusting slider is provided with an inner screw thread matched with the adjusting screw thread.

[0017] Further, the clamping part comprises two groups of clamping half-rings, which are arranged in a circular ring shape.

[0018] The two groups of clamping half-rings are hinged to the top of the extension support, and a reset torsional spring is arranged at the hinge.

[0019] Further, the clamping half-ring is made of non-conductive material.

[0020] The beneficial effects of the utility model are as follows:

[0021] In use, the ground-contacting base is arranged on the side of the pipeline and contacts the ground, the vortex flowmeter is detached from the pipeline and arranged in the clamping part, and the height of the extension support is adjusted, so that the vortex flowmeter is separated from the pipeline and does not contact the pipeline, the converter of the vortex flowmeter is floating and does not contact any metal object, interference in the subsequent zero drift process is avoided, the hand-held measured component is not needed in the zero drift process, and the ground connection in the zero drift adjustment process is facilitated under the condition of isolating external interference, and the purpose of assisting the zero drift process is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is an installation schematic view of the utility model;

[0023] Fig. 2 It is a structural schematic view of the utility model;

[0024] Fig. 3 It is a sectional view of the utility model.

[0025] In the drawings:

[0026] 1, ground-contacting base; 11, telescopic cavity; 12, adjusting cavity;

[0027] 2, extension support; 21, adjusting slider;

[0028] 3, clamping part; 31, clamping half-ring;

[0029] 4, adjusting assembly; 41, limiting guide rod; 42, adjusting screw; 43, adjusting knob;

[0030] 5, ground wire group; 51, ground end; 52, connecting end. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] Please refer to Figs. 1-3 The utility model discloses a kind of auxiliary equipment for vortex flowmeter zero drift adjustment, comprising:

[0033] Ground base 1 is set on ground;

[0034] Extension support 2 is set in ground base 1 in telescopic;

[0035] Clamping part 3 is set in the end of extension support 2, to hold and clip vortex flowmeter 01 or be set on it;

[0036] Adjusting assembly 4 is set on ground base 1, for adjusting the height of extension support 2, so that vortex flowmeter 01 is separated from pipeline to carry out zero drift adjustment.

[0037] Based on the above structure setting, the application can be set with pipeline side edge and contact with ground when using, then vortex flowmeter 01 is disassembled from pipeline and placed in clamping part 3, finally the height of extension support 2 is adjusted, so that vortex flowmeter 01 is separated from pipeline and does not contact with pipeline, so that the converter of vortex flowmeter 01 floats and does not contact with any metal object, to avoid interference in subsequent zero drift process;

[0038] Secondly, vortex flowmeter 01 is separated from pipeline, which can also avoid the interference caused by pipeline vibration;

[0039] Further, it also includes ground wire group 5, and the ground wire group 5 is set on ground base 1;

[0040] One end of the ground wire group 5 is provided with a ground end 51, and the other end is provided with a connecting end 52 connected with the sensor of vortex flowmeter 01.

[0041] Finally, in the detection process, the sensor can be connected through the connecting end 52 and the vortex flowmeter 01, and the grounding end 51 is in contact with the ground, so that the sensor grounding can exclude interference and carry out zero drift.

[0042] Further need to explain is that the inside of the ground contact base 1 is provided with an extension cavity 11 corresponding to the extension support 2;

[0043] The extension cavity 11 is also provided with an adjusting cavity 12.

[0044] In the above structure, the extension support 2 is provided with an adjusting sliding block 21, which is matched with the adjusting cavity 12 and can slide up and down in the height direction inside it.

[0045] It should be added that the adjusting assembly 4 includes two sets of limiting guide rods 41, which are arranged in the adjusting cavity 12 and penetrate the adjusting sliding block 21.

[0046] One of the limiting guide rods 41 is provided with an adjusting thread 42, the end of which extends to the outside of the ground contact base 1 and is provided with an adjusting knob 43, and the adjusting sliding block 21 is provided with an inner thread corresponding to the adjusting thread 42.

[0047] Through the above structure, when the device is used, the limiting guide rod 41 with the adjusting thread 42 can be rotated by adjusting the adjusting knob 43, and the extension support 2 can be adjusted by the engagement of the adjusting sliding block 21.

[0048] It should be particularly pointed out that the adjusting assembly 4 structure in the present application is a commonly used technical means, which can be replaced by other structures easily thought by those skilled in the art.

[0049] In the present application, the clamping part 3 includes two sets of clamping half rings 31, which form a circular ring.

[0050] The two sets of clamping half rings 31 are hinged to the top of the extension support 2, and a reset torsional spring is arranged at the hinge, which is used to make the two sets of clamping half rings 31 have opposite fastening force, so as to ensure the stability when clamping the vortex flowmeter 01.

[0051] Finally, it should be added that the clamping half ring 31 is made of non-conductive material to avoid the problem of affecting the zero drift process caused by metal or other conductive materials.

[0052] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0053] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, and when the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0054] In addition, "multiple" means more than two.

[0055] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An auxiliary device for zero drift adjustment of a vortex flowmeter, characterized in that, include: Ground-contact base (1); The extension bracket (2) is telescopically installed inside the ground contact base (1); The clamping part (3) is provided at the end of the extension bracket (2) for mounting the vortex flow meter (01); Adjustment component (4), located on ground base (1), is used to adjust the height of extension bracket (2) so that vortex flow meter (01) can be disconnected from pipeline for zero drift adjustment.

2. The auxiliary device for zero drift adjustment of a vortex flowmeter according to claim 1, characterized in that: It also includes a grounding wire assembly (5), which is disposed on the grounding base (1); One end of the ground contact line group (5) is provided with a ground contact end (51), and the other end is provided with a connection end (52) for connecting to the sensor of the vortex flow meter (01).

3. The auxiliary device for zero drift adjustment of a vortex flowmeter according to claim 1, characterized in that: The ground contact base (1) has a telescopic cavity (11) inside that corresponds to the extension bracket (2); An adjustment cavity (12) is also provided inside the telescopic cavity (11).

4. The auxiliary device for zero drift adjustment of a vortex flowmeter according to claim 3, characterized in that: An adjustment slider (21) is provided on the extension bracket (2). The adjustment slider (21) is adapted to the adjustment cavity (12) and can slide up and down in the height direction inside it.

5. The auxiliary device for zero drift adjustment of a vortex flowmeter according to claim 4, characterized in that: The adjustment assembly (4) includes two sets of limiting guide rods (41), which are disposed in the adjustment cavity (12) and pass through the adjustment slider (21); One of the limiting guide rods (41) is provided with an adjusting thread (42), the end of which extends to the outside of the ground base (1) and is provided with an adjusting knob (43), and an internal thread that meshes with the adjusting thread (42) is provided in the corresponding adjusting slider (21).

6. The auxiliary device for zero drift adjustment of a vortex flowmeter according to claim 1, characterized in that: The clamping part (3) includes two sets of clamping semi-rings (31), which are arranged in a circular shape. The two sets of clamping half rings (31) are hinged to the top of the extension bracket (2), and a reset torsion spring is provided at the hinge.

7. The auxiliary device for zero drift adjustment of a vortex flowmeter according to claim 6, characterized in that: The clamping half-ring (31) is made of a non-conductive material.

Images