Turbine flowmeter with sealing structure

Abstract

The utility model discloses a turbine flow meter with a sealing structure, which belongs to the technical field of turbine flow meters and comprises a flow meter body, an operation display panel is fixedly arranged at the top of the flow meter body, flanges are fixedly arranged on two sides of the flow meter body, annular grooves are machined in one sides, far away from each other, of the two flanges, and the sealing structure is arranged in the annular grooves. Sealing assemblies are arranged in the annular grooves, each sealing assembly comprises an annular plate, hollow pipes are fixedly arranged on the sides, close to each other, of the two annular plates, the outer walls of the hollow pipes are sleeved with rubber sealing rings, the sections of the rubber sealing rings are conical, and sealing grooves are machined in the inner walls of the two sides of the flowmeter body and the inner walls of the two flanges. According to the flow meter, the rubber sealing ring and the annular sealing gasket are matched to achieve a double-layer sealing effect, so that the sealing performance of the flow meter body can be improved, and the influence of leakage on the detection precision and the conveying safety of fluid is avoided; the annular sealing gasket and the rubber sealing ring can be quickly detached for replacement, and the operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to turbine flowmeter technical field belongs to a kind of turbine flowmeter with sealing structure. BACKGROUND

[0002] Turbine flowmeter is a commonly used flow measuring instrument, which utilizes the relationship between the rotational speed generated by turbine in fluid and fluid flow rate to measure the volumetric flow rate of fluid, i.e., turbine flowmeter utilizes the relationship between the rotational speed of turbine and the flow rate of fluid to measure the volumetric flow rate of fluid, and converts the rotational speed signal into an electrical signal by a sensor, and processes and displays it by an electronic display instrument. Turbine flowmeter is widely used in industrial field, with the advantages of wide measurement range, high precision, simple structure, etc.

[0003] For example, the prior art with publication number CN221302410U discloses a turbine flowmeter with good sealing structure, which comprises a turbine flowmeter body, an operation display panel is installed at the upper end of the turbine flowmeter body, installation grooves are formed on the left and right sides of the turbine flowmeter body, and a blocking ring block is installed in each installation groove.

[0004] However, the above-mentioned prior art still has the following problems when in use: the blocking ring block is connected and fixed with the flange fixing ring, since the blocking sliding block moves by the power of gas, the blocking sliding block will also generate a reaction force on the gas, which will easily affect the sealing property between the blocking ring block and the flange fixing ring. Based on this, the utility model provides a turbine flowmeter with sealing structure. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a turbine flowmeter with sealing structure to solve the problem that the blocking sliding block generates a reaction force on the gas, which will easily affect the sealing property between the blocking ring block and the flange fixing ring in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A turbine flowmeter with sealing structure, comprising a flowmeter body, an operation display panel is fixedly arranged on the top of the flowmeter body, flanges are fixedly arranged on the two sides of the flowmeter body, annular grooves are formed on the sides away from each other of the two flanges, sealing assemblies are arranged in the annular grooves, the sealing assembly comprises a ring plate, hollow tubes are fixedly arranged on the sides close to each other of the two ring plates, rubber sealing rings are sleeved on the outer walls of the hollow tubes, the cross sections of the rubber sealing rings are tapered, sealing grooves are formed in the inner walls of the two sides of the flowmeter body and the inner walls of the two flanges, the rubber sealing rings are inserted into the sealing grooves, and annular sealing pads are arranged on the outer walls of the two flanges.

[0008] Further, the inner walls of the two annular grooves are fixedly provided with a plurality of positioning blocks arranged in an annular array, the outer walls of the two rubber sealing rings are processed with positioning holes in the same number as the positioning blocks, the positioning blocks are inserted into the positioning holes, and the cooperation of the positioning blocks and the positioning holes facilitates workers to quickly install the ring plate and ensures the accurate installation of the ring plate.

[0009] Further, the outer walls of the two flanges are processed with a plurality of fixing holes one arranged in an annular array, bolts are used to pass through the fixing holes one for connecting and fixing the flanges and the fluid pipelines during actual use.

[0010] Further, the outer walls of the two flanges are processed with circular grooves communicated with the annular grooves, the annular sealing pads are arranged in the circular grooves, the inner walls of the annular sealing pads are attached to the outer walls of the ring plates, and the circular grooves can limit and fix the annular sealing pads, so that the sealing performance of the annular rubber pad between the flanges and the fluid pipelines is improved.

[0011] Further, the outer walls of the two annular sealing pads are processed with fixing holes two in the same number as the fixing holes one, and the fixing holes two are arranged to avoid the annular rubber pad from hindering the installation and use of the flanges.

[0012] Further, the far sides of the two ring plates are processed with two rectangular grooves, the ring plates and the hollow pipes are processed with circular holes communicated with the rectangular grooves, and the circular holes are slidably provided with pull rods, so that the pull rods facilitate workers to quickly disassemble the ring plates, and the efficiency of replacing the rubber sealing rings is improved.

[0013] Further, the pull rod comprises a rod body and a rod head, the outer wall of the rod body is sleeved with a limiting ring, and the limiting ring is fixed in the circular hole, so that the limiting ring limits the rod head and avoids the rod body and the rod head from being directly separated from the circular hole.

[0014] Further, the far end of the rod body from the rod head is fixedly provided with a rectangular plate, the rectangular plate is connected with a pull belt, and the pull belt is arranged in the rectangular groove, so that the pull belt facilitates workers to quickly pull the rectangular block and the pull rod, and the pull belt is more convenient to use.

[0015] The utility model has the advantages of the following:

[0016] 1. The utility model discloses a flowmeter body and a flange are provided with rubber sealing rings, and the outer wall of the flange is provided with annular sealing pads, which can realize double sealing effect, improve the sealing performance of the flowmeter body, avoid the influence of leakage on the detection accuracy and the safety of fluid conveying, and facilitate the replacement of the annular sealing pads and the rubber sealing rings after the flange and the fluid pipeline are separated.

[0017] 2, through the rectangular plate and the pole body cooperation, when the staff disassembles the ring plate, grasps the rectangular plate and the pole body, can pull out the ring plate from the sealing groove quickly, so as to further improve the replacement efficiency of the ring-shaped sealing gasket and the rubber sealing ring. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creating labor.

[0019] The structure, proportion, size, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the limiting conditions of the implementation of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose of the present application, should still fall within the scope of the technical content disclosed by the present application.

[0020] Figure 1 The overall structure schematic diagram provided by the present application is shown in the figure;

[0021] Figure 2 The flange and flowmeter body structure provided by the present application is shown in the figure;

[0022] Figure 3 The flowmeter body partial sectional view provided by the present application is shown in the figure;

[0023] Figure 4 The ring plate, hollow tube and rubber sealing ring sectional view provided by the present application is shown in the figure;

[0024] Figure 5 The A part of the figure is shown in the figure. Figure 4

[0025] In the figure: 1, flowmeter body; 2, operation display panel; 3, flange; 4, annular groove; 5, sealing assembly; 51, ring plate; 52, hollow tube; 53, rubber sealing ring; 54, sealing groove;

[0026] 6, positioning block; 7, positioning hole; 8, fixing hole one; 9, circular groove; 10, annular sealing gasket; 11, fixing hole two; 12, rectangular groove; 13, round hole; 14, pull rod; 141, pole body; 142, rod head; 143, limit ring; 144, rectangular plate; 145, pull belt. DETAILED DESCRIPTION

[0027] ​The following specific embodiments illustrate the embodiments of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed content of the specification. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] Referring to the drawings accompanying Figures 1-5 The utility model provides a kind of turbine flowmeter with sealing structure, including flowmeter body 1, the operating display panel 2 is fixedly arranged on the top of flowmeter body 1, the flange 3 is fixedly arranged on both sides of flowmeter body 1, annular groove 4 is processed on the side of two flanges 3 away from each other, sealing assembly 5 is arranged in annular groove 4, and sealing assembly 5 includes ring plate 51, the hollow tube 52 is fixedly arranged on the side of two ring plates 51 close to each other, rubber sealing ring 53 is sleeved on the outer wall of hollow tube 52, and rubber sealing ring 53 cross section is set as taper, sealing groove 54 is processed on the inner wall of both sides of flowmeter body 1 and the inner wall of two flanges 3, and rubber sealing ring 53 is inserted in sealing groove 54.

[0029] The outer wall of two flanges 3 is processed with fixed hole one 8, and the number of fixed hole one 8 is multiple, and multiple fixed hole one 8 is distributed in annular array on flange 3, the outer wall of two flanges 3 is processed with the circular groove 9 being communicated with annular groove 4, annular sealing pad 10 is arranged in circular groove 9, the inner wall of annular sealing pad 10 is attached with the outer wall of ring plate 51, the outer wall of two annular sealing pads 10 is processed with the fixed hole two 11 being same in number with fixed hole one 8, and multiple fixed hole one 8 and fixed hole two 11 are set, which can improve the installation firmness of flowmeter body 1.

[0030] In actual use, the staff first inserts the ring plate 51 and the hollow tube 52 into the flange 3 and the flowmeter body 1, at this time, the annular sealing gasket 10 on the outer wall of the hollow tube 52 is in contact with the sealing groove 54, then the annular sealing gasket 10 is placed in the circular groove 9, and then the flange 3 is fixed with the fluid pipeline. During the gradual clamping process of the fluid pipeline and the flange 3, the annular sealing gasket 10 and the ring plate 51 are further pressed and deepened, the rubber sealing ring 53 is pressed and tightly combined with the sealing groove 54, and the rubber sealing ring 53 cooperates with the annular sealing gasket 10 to play a double-sealing effect, so that the sealing performance of the flowmeter body 1 during installation can be greatly improved. When the fluid is conveyed to the flowmeter body 1 through the fluid pipeline, under the action of the fluid, the impeller in the flowmeter body 1 rotates under force, and the rotation speed is proportional to the average flow rate of the pipeline. At the same time, the blade periodically cuts the magnetic field lines generated by the electromagnet, changes the magnetic flux of the coil, and according to the principle of electromagnetic induction, a pulsating potential signal, i.e. an electric pulse signal, will be induced in the coil. The frequency of the electric pulse signal is proportional to the flow rate of the measured fluid, so the flow rate of the fluid can be measured. When the rubber sealing ring 53 needs to be replaced, the staff first disassembles the flange 3 and the fluid pipeline, then removes the annular sealing gasket 10, and then pulls out the ring plate 51 from the inside of the flange 3 and the flowmeter, and finally removes the rubber sealing ring 53 from the hollow tube 52. The structure is simple and convenient to replace.

[0031] In the embodiment, a plurality of positioning blocks 6 arranged in an annular array are fixed on the inner walls of the two annular grooves 4, and a plurality of positioning holes 7 with the same number as the positioning blocks 6 are machined on the outer walls of the two rubber sealing rings 53. The positioning blocks 6 and the positioning holes 7 are inserted and connected, and the staff can accurately install the rubber sealing ring 53 into the sealing groove 54 by means of the positioning blocks 6, so as to prevent the rubber sealing ring 53 from deviating and affecting the sealing performance.

[0032] Referring to the drawings accompanying the specification Figures 1-5 The far sides of the two ring plates 51 are machined with two rectangular grooves 12, and the interiors of the ring plate 51 and the hollow tube 52 are machined with a circular hole 13 in communication with the rectangular groove 12. A pull rod 14 is slidably arranged in the circular hole 13, and the pull rod 14 includes a rod body 141 and a rod head 142. A limiting ring 143 is sleeved on the outer wall of the rod body 141, and the limiting ring 143 is fixed in the circular hole 13. A rectangular plate 144 is fixedly arranged on the end of the rod body 141 away from the rod head 142, and a pull belt 145 is connected to the rectangular plate 144 and arranged in the rectangular groove 12.

[0033] By setting the pull rod 14 on the ring plate 51, the pull rod 14 is composed of the rod body 141 and the rod head 142, when the ring plate 51 needs to be disassembled, the staff first holds the pull belt 145 to drive the rectangular plate 144 and the rod body 141 to move outwards, the rod head 142 on the rod body 141 is limited by the limiting ring 143 and cannot be separated, therefore the staff can pull the ring plate 51 by means of the rectangular plate 144 and the rod body 141 to disassemble, so that the disassembly efficiency of the ring plate 51 can be improved, when reinstalling and using, the rectangular plate 144 is stored in the rectangular groove 12, the rod body 141 is stored in the circular hole 13 and cannot affect the sealing use of the ring-shaped sealing gasket 10.

[0034] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model belong to the scope of protection required by the utility model.

Claims

1. A turbine flowmeter with sealing structure, comprising a flowmeter body (1), an operation display panel (2) is fixed on the top of the flowmeter body (1), flanges (3) are fixed on both sides of the flowmeter body (1), characterized in that: Two flanges (3) are away from one side of the annular groove (4) are processed, the annular groove (4) inside is equipped with sealing assembly (5); The sealing assembly (5) includes ring plate (51), two ring plate (51) are fixedly provided with hollow tube (52) on the side of the approach, the hollow tube (52) outer wall is provided with rubber sealing ring (53), and the rubber sealing ring (53) cross section is provided with taper, the flowmeter body (1) both sides inner wall and two flanges (3) inner wall are processed with sealing groove (54), the rubber sealing ring (53) is inserted in sealing groove (54), and the outer wall of two flanges (3) is equipped with annular sealing pad (10).

2. The turbine flow meter with a seal structure of claim 1, wherein: The inner wall of two annular grooves (4) is fixedly provided with a plurality of positioning blocks (6) arranged in a ring shape, the outer wall of two rubber sealing rings (53) is processed with a plurality of positioning holes (7) same as the number of positioning blocks (6), and the positioning block (6) is inserted with the positioning hole (7).

3. The turbine flow meter with a seal structure of claim 1, wherein: The outer wall of two flanges (3) is processed with a plurality of fixing holes (8), and the plurality of fixing holes (8) are arranged in a ring shape on the flange (3).

4. The turbine flow meter with a seal structure of claim 1, wherein: The outer wall of two flanges (3) is processed with a plurality of fixing holes (8), and the plurality of fixing holes (8) are arranged in a ring shape on the flange (3).

5. The turbine flow meter with a seal structure of claim 3, wherein: The outer wall of two flanges (3) is processed with a plurality of fixing holes (8), and the plurality of fixing holes (8) are arranged in a ring shape on the flange (3).

6. The turbine flow meter with a seal structure of claim 1, wherein: The outer wall of two annular sealing pads (10) is processed with a plurality of fixing holes (11) same as the number of fixing holes (8).

7. The turbine flow meter with a seal structure of claim 6, wherein: Two ring plates (51) are away from one side of the two rectangular grooves (12) are processed, the ring plate (51) and hollow tube (52) inside are processed with circular hole (13), and the circular hole (13) is communicated with rectangular groove (12), the circular hole (13) inside is slidably provided with pull rod (14).

8. The turbine flow meter with a seal structure of claim 7, wherein: The pull rod (14) includes rod body (141) and rod head (142), the outer wall of rod body (141) is sleeved with limiting ring (143), and the limiting ring (143) is fixed in the circular hole (13). The rod body (141) is fixedly provided with rectangular plate (144) away from the end of rod head (142), the rectangular plate (144) is connected with pull belt (145), and the pull belt (145) is arranged in the rectangular groove (12).

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