Wear-resistant mass flow meter

Abstract

The utility model provides a wear-resistant mass flow meter, which belongs to the technical field of absorption tower slurry density measurement, and comprises a mass flow meter, two groups of pipelines and a wear-resistant sheet, the mass flow meter is provided with an input end and an output end, and the input end and the output end are respectively provided with a flange connecting structure; the two pipelines are located at the two ends of the mass flow meter respectively, the ends, close to the mass flow meter, of the two pipelines are communicated with the input end and the output end respectively, and the other ends of the pipelines are used for inputting slurry and outputting slurry respectively. The slurry sequentially enters one group of pipelines, the mass flow meter and the other group of pipelines, and the mass flow meter is used for measuring the density of the slurry; the wear-resistant sheet is connected between the input end of the mass flowmeter and the pipeline and used for making contact with absorption tower slurry and reducing abrasion of the absorption tower slurry to the mass flowmeter. The wear-resistant mass flow meter has the technical effects that the wear to the mass flow meter can be reduced, the service life is prolonged, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of absorption tower slurry density measurement, more specifically, relates to a wear -resisting mass flowmeter. BACKGROUND

[0002] The absorption tower slurry density is an important thermal protection parameter of the thermal power plant, and is an important parameter for the operation personnel to judge the absorption tower environment. At present, the slurry density measurement is measured by using the mass flowmeter. Since the mass flowmeter is in long-term contact with the slurry, it is subject to wear and corrosion by the slurry. The main position of the slurry wear on the mass flowmeter is the connection between the input end of the mass flowmeter and the pipe end. This greatly reduces the service life of the mass flowmeter and affects the accuracy of the slurry density measurement. Therefore, how to solve the wear problem of the mass flowmeter and prolong the service life is a technical problem faced by the technical personnel in the field. Since the mass flowmeter itself does not have the characteristics of wear resistance and corrosion resistance, and no wear-resistant structure or component is used during use, when the mass flowmeter is worn or corroded to a certain extent, or when the mass flowmeter is used for a period of time, a new mass flowmeter is needed to replace the old one. This will inevitably increase the cost and waste resources.

[0003] Therefore, it is necessary to study a mass flowmeter that can resist wear or add a wear-resistant structure based on the original mass flowmeter to improve the wear resistance of the mass flowmeter. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a wear-resistant mass flowmeter to solve the technical problems of poor wear resistance, short service life and high use cost of the mass flowmeter used for absorption tower slurry density measurement in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a wear-resistant mass flowmeter, which comprises:

[0006] The mass flowmeter has an input end and an output end, and the input end and the output end both have a flange connection structure;

[0007] Two groups of pipes are located at both ends of the mass flowmeter, and the ends of the two groups of pipes close to the mass flowmeter are used to communicate the input end and the output end, respectively, and the other ends of the pipes are used to input and output the slurry, respectively. The slurry enters one group of pipes, the mass flowmeter and the other group of pipes in sequence, and the mass flowmeter is used to measure the slurry density;

[0008] A wear plate is connected between the input end of the mass flow meter and the pipeline, and the wear plate is used to contact the absorption tower slurry and reduce the wear of the mass flow meter by the absorption tower slurry.

[0009] In a possible implementation, the two groups of pipeline ends are provided with flange structures, the wear plate has a plurality of mounting holes, and the flange structures and the flange connecting structures are fixedly connected through a plurality of fasteners arranged through the mounting holes.

[0010] In a possible implementation, the wear plate has a circular disc structure, the outer diameter of the wear plate is the same as the outer diameter of the flange structure or the flange connecting structure, a through hole for the slurry to pass through is arranged in the middle of the wear plate, and a plurality of the mounting holes are arranged at positions close to the ends of the wear plate and arranged in a ring array surrounding the through hole.

[0011] In a possible implementation, the inner diameter of the through hole is not greater than the inner diameter of the pipeline and not greater than the inner diameter of the input end of the mass flow meter.

[0012] In a possible implementation, the inner diameter of the through hole gradually decreases in the direction from the end of the pipeline connected with the mass flow meter to the input end of the mass flow meter.

[0013] In a possible implementation, the through hole is a plurality of through holes and is arranged at intervals.

[0014] In a possible implementation, the wear plate includes a plurality of plate structures arranged in a stacked combination, a plurality of the mounting holes are arranged at positions close to the ends of the plate structures, and the through hole is arranged at a middle position of the plate structure.

[0015] In a possible implementation, the inner diameter of the through hole of the plurality of plate structures gradually decreases in the direction from the end of the pipeline connected with the mass flow meter to the input end of the mass flow meter, and the diameters of the ends of the through holes of two adjacent plate structures close to each other are the same.

[0016] In a possible implementation, a sealing gasket is arranged between the output end of the mass flow meter and the other group of pipeline ends, and the sealing gasket is used to seal the gap between the output end and the pipeline.

[0017] In a possible implementation, the material of the wear plate is polytetrafluoroethylene.

[0018] The utility model provides a kind of wear-resistant mass flowmeter's beneficial effect is in at:compared with prior art, the utility model discloses a kind of wear-resistant mass flowmeter including mass flowmeter, two groups of pipelines and wear plate, mass flowmeter has input and output, input and output are all with flange connection structure;Two groups of pipelines are located at the both ends of mass flowmeter, the end of two groups of pipelines close to mass flowmeter is used to connect input and output respectively, and the other end of pipeline is used to input slurry and output slurry respectively;Slurry enters one group of pipeline, mass flowmeter and another group of pipeline in turn, mass flowmeter is used to measure slurry density;Wear plate is connected between the input of mass flowmeter and pipeline, and wear plate is used to contact absorption tower slurry and reduce the wear of absorption tower slurry to mass flowmeter, solve the poor wear resistance of mass flowmeter applied to absorption tower slurry density measurement, short service life, high use cost technical problem, with the technical effect of being able to reduce the wear of mass flowmeter, prolong service life, reduce use cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0020] Figure 1 The structure schematic diagram of a kind of wear-resistant mass flowmeter provided for the embodiment of the utility model;

[0021] Figure 2 The explosion structure schematic diagram of a kind of wear-resistant mass flowmeter provided for the embodiment of the utility model;

[0022] Figure 3 The left half structure schematic diagram of a kind of wear-resistant mass flowmeter provided for the embodiment of the utility model;

[0023] Figure 4 The wear plate structure perspective drawing of a kind of wear-resistant mass flowmeter provided for the embodiment of the utility model;

[0024] Figure 5 The left half structure schematic diagram of a kind of wear-resistant mass flowmeter provided for another embodiment of the utility model;

[0025] Figure 6 The wear plate structure front view in Figure 5 ;

[0026] Figure 7 The wear plate structure perspective drawing of a kind of wear-resistant mass flowmeter provided for another embodiment of the utility model;

[0027] Figure 8 The utility model provides a wear -resistant quality flowmeter's wear -resistant piece structure front view for the utility model embodiment.

[0028] Mark explanation:

[0029] 1, quality flowmeter; 11, input end; 12, output end; 13, flange connection structure; 2, pipeline; 3, wear -resistant piece; 31, mounting hole; 32, through -hole; 33, piece structure; 4, flange structure; 5, sealing pad. Specific implementation

[0030] In order to make the technical problem, technical scheme and beneficial effect that the utility model wants to solve more clearly clear, the following is combined with the drawing and embodiment, and the utility model is further detailedly explained. It should be understood that the specific embodiment described here is merely used to explain the utility model, and is not used to limit the utility model.

[0031] Please see Figures 1 to 8 Together, now a kind of wear -resistant quality flowmeter provided by the utility model will be described. The kind of wear -resistant quality flowmeter, including quality flowmeter 1, two groups of pipeline 2 and wear -resistant piece 3, quality flowmeter 1 has input end 11 and output end 12, and input end 11 and output end 12 all have flange connection structure 13;Two groups of pipeline 2 are located at the both ends of quality flowmeter 1, and the end close to quality flowmeter 1 of two groups of pipeline 2 is used to communicate input end 11 and output end 12 respectively, and the other end of pipeline 2 is used to input slurry and output slurry respectively;Slurry enters one group of pipeline 2, quality flowmeter 1 and another group of pipeline 2 in turn, and quality flowmeter 1 is used to measure the density of slurry;Wear -resistant piece 3 is connected between input end 11 of quality flowmeter 1 and pipeline 2, and wear -resistant piece 3 is used to contact absorption tower slurry and reduce the wear of absorption tower slurry to quality flowmeter 1.

[0032] The utility model provides a kind of wear -resistant quality flowmeter, compared with prior art, by setting wear -resistant piece 3 between quality flowmeter 1 and pipeline 2, it can reduce the wear of slurry to quality flowmeter 1, solve the technical problem that the wear resistance of quality flowmeter 1 applied to absorption tower slurry density measurement is poor, service life is short, use cost is high, with the technical effect that it can reduce the wear of quality flowmeter 1, prolong service life, reduce use cost.

[0033] In actual use, the thickness of wear -resistant piece 3 can be reasonably selected according to actual situation.

[0034] The input end 11 of the mass flowmeter 1 is one end of the slurry inflow, and the inner surface of the input end 11 is a pressure receiving surface, which is the main part subjected to the pressure of the slurry. Since the wear-resistant sheet 3 is arranged between the input end 11 and the pipeline 2, the pressure receiving surface is changed into the wear-resistant sheet 3, that is, the slurry will generate pressure and wear on the wear-resistant sheet 3. The wear-resistant sheet 3 has a long service life and can reduce the wear on the mass flowmeter 1.

[0035] In some embodiments, referring to Figures 1 to 8 , both ends of the pipeline 2 are provided with flange structures 4, the wear-resistant sheet 3 has a plurality of mounting holes 31, the flange structure 4 and the flange connecting structure 13 are fixedly connected through a plurality of fasteners (which are prior art and not shown in the figure), and the fasteners are arranged through the mounting holes 31. The flange structure 4 is in sealing connection with the end of the pipeline 2, the flange structure 4 and the flange connecting structure 13 have the same structure and the same outer diameter, which facilitates mutual connection. By using a plurality of fasteners to sequentially pass through the flange structure 4, the wear-resistant sheet 3 and the flange connecting structure 13, and then fixing and locking the fasteners, the flange structure 4 and the flange connecting structure 13 can be fixed, and the wear-resistant sheet 3 is also fixed. In the use process of the utility model, the slurry will cause wear on the wear-resistant sheet 3, and the wear-resistant sheet 3 is made of wear-resistant material, so the wear on the mass flowmeter 1 can be greatly reduced. It should be noted that a small amount of slurry is allowed to cause wear on the mass flowmeter 1, but most of the slurry will not cause wear on the mass flowmeter 1. Compared with the prior art without using the wear-resistant sheet 3, the slurry wear on the mass flowmeter 1 can be greatly reduced.

[0036] In some embodiments, referring to Figures 1 to 5 , the wear-resistant sheet 3 has a circular disc structure, the outer diameter of the wear-resistant sheet 3 is the same as that of the flange structure 4 or the flange connecting structure 13, the wear-resistant sheet 3 is provided with a through hole 32 in the middle for the slurry to pass through, and a plurality of mounting holes 31 are arranged at positions close to the ends of the wear-resistant sheet 3 and surround the through hole 32 in a ring array. Specifically, the slurry passes through the pipeline 2, the through hole 32, the inside of the mass flowmeter 1 and another pipeline 2 in sequence. When the slurry passes through the through hole 32, the wear on the mass flowmeter 1 is reduced. If a through hole 32 is arranged in the middle of the wear-resistant sheet 3, the through hole 32 is coaxially arranged with the pipeline 2, which facilitates the passage of the slurry and the measurement of the density. The number of mounting holes 31 is the same as that of holes on the flange structure 4, and the mounting holes 31 are arranged in alignment, which facilitates the passage and fixation of the fasteners.

[0037] In some embodiments, referring to Figures 1 to 5, the inner diameter of the through hole 32 is not greater than the inner diameter of the pipeline 2 and the inner diameter of the input end 11 of the mass flow meter 1. If there is one through hole 32, the diameter of the through hole 32 is less than or equal to the inner diameter of the pipeline 2 and the inner diameter of the input end 11 of the mass flow meter 1. The advantage of this arrangement is that the slurry is in contact with the wear-resistant sheet 3, and the contact with the input end 11 of the mass flow meter 1 is reduced, which can reduce the wear of the slurry on the mass flow meter 1 (input end 11).

[0038] In order to facilitate the flow of the slurry and at the same time reduce the wear on the mass flow meter 1, in some embodiments, please refer to Figures 5 to 6 , the inner diameter of the through hole 32 gradually decreases along the direction from the end of the pipeline 2 connected to the mass flow meter 1 to the input end 11 of the mass flow meter 1. The gradually decreasing inner diameter of the through hole 32 can ensure the smooth flow of the slurry, and also enable the slurry to be in contact with the wear-resistant sheet 3 to the maximum extent, which can reduce the wear on the mass flow meter 1 and enable most of the slurry to directly enter the inside of the mass flow meter 1.

[0039] In some embodiments, please refer to Figure 7 , the number of through holes 32 is multiple and is arranged at intervals. If there are two through holes 32, the two through holes 32 are arranged at intervals and are both arranged at the middle position of the wear-resistant sheet 3. The slurry can flow through the two through holes 32, and the diameters of the two through holes 32 are the same and are less than the inner diameter of the pipeline 2 and the inner diameter of the input end 11 of the mass flow meter 1.

[0040] Specifically, the inner diameter of the pipeline 2 and the inner diameter of the input end 11 of the mass flow meter 1 are the same, which can facilitate the flow of the slurry and subsequent density measurement operations.

[0041] In order to reasonably adjust or control the thickness of the wear-resistant sheet 3, in some embodiments, please refer to Figure 8 , the wear-resistant sheet 3 comprises a plurality of sheet structures 33 arranged in a stacked manner. The plurality of mounting holes 31 are located at the end portion of the sheet structure 33, and the through hole 32 is arranged at the middle position of the sheet structure 33. In actual application, according to the site conditions, different thicknesses or the same thicknesses of the plurality of sheet structures 33 are reasonably selected for use, which can adjust the overall thickness of the wear-resistant sheet 3 and facilitate the installation and use of the wear-resistant effect.

[0042] Specifically, the sheet structure 33 is in the shape of a disc or a round cake, and the adjacent two sheet structures 33 are sealingly connected, which can effectively prevent the slurry from leaking and achieve the sealing effect.

[0043] In order to gradually reduce the inner diameter of the through hole 32 of the plurality of sheet structures 33, in some embodiments, please refer to Figure 8The inner diameter of the through hole 32 of the plurality of sheet structures 33 gradually decreases in the direction from the end of the pipeline 2 connected with the mass flow meter 1 to the input end 11 of the mass flow meter 1, and the diameters of the end portions of the through holes 32 of two adjacent sheet structures 33 are the same. If two sheet structures 33 are used, the inner diameters of the end portions of the through holes 32 of the two sheet structures 33 are set to be the same, so that the two sheet structures 33 can be combined to form a whole, and the gradual decrease of the inner diameters of the two combined through holes 32 is realized. The pulp slurry can smoothly pass through the through holes 32, and the phenomenon of jamming and the like does not occur, and the effect is the same as that of the gradually-changing inner diameter of the through hole 32 of one sheet structure 33.

[0044] In order to ensure the sealing effect, in some embodiments, referring to Figures 1 to 2 A sealing gasket 5 is arranged between the output end 12 of the mass flow meter 1 and the end of the other pipeline 2, and the sealing gasket 5 is used to seal the gap between the output end 12 and the pipeline 2. The sealing end can ensure the sealing performance, and an O-shaped sealing ring or other forms of sealing ring in the prior art can be used.

[0045] In some embodiments, the material of the wear-resistant sheet 3 is polytetrafluoroethylene, which has good wear resistance, prolongs the service life of the mass flow meter 1, and ensures the measurement accuracy of the mass flow meter 1.

[0046] The above only describes the preferred embodiments of the utility model, and does not limit the utility model. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A wear resistant mass flow meter characterized by, The utility model relates to a wear-resistant sheet for mass flowmeter, and belongs to the field of mass flowmeter. The utility model discloses a wear-resistant sheet for mass flowmeter, which is characterized by comprising the following parts: A mass flowmeter with an input end and an output end, both of which have flange connection structures; Two groups of pipes located at both ends of the mass flowmeter, the ends of the two groups of pipes close to the mass flowmeter are used for connecting the input end and the output end respectively, and the other ends of the two groups of pipes are used for inputting slurry and outputting slurry respectively; the slurry enters a group of the pipes, the mass flowmeter and another group of the pipes in sequence, and the mass flowmeter is used for measuring the density of the slurry; 2. A wear-resistant mass flowmeter as recited in claim 1, wherein, A wear-resistant sheet connected between the input end of the mass flowmeter and the pipe, which is used for contacting and absorbing the slurry of the absorption tower and reducing the wear of the mass flowmeter caused by the slurry of the absorption tower.

3. A wear-resistant mass flowmeter as recited in claim 2, wherein, Both ends of the two groups of pipes are provided with flange structures, the wear-resistant sheet has a plurality of mounting holes, the flange structures and the flange connection structures are fixedly connected through a plurality of fasteners, and the fasteners are arranged through the mounting holes.

4. A wear-resistant mass flowmeter as recited in claim 3, wherein, The wear-resistant sheet has a round cake structure, the outer diameter of the wear-resistant sheet is the same as that of the flange structure or the flange connection structure, a through hole for passing the slurry is arranged in the middle of the wear-resistant sheet, and a plurality of the mounting holes are arranged at positions close to the ends of the wear-resistant sheet and are arranged in a ring array to surround the through hole.

5. A wear-resistant mass flowmeter as recited in claim 3, wherein, The inner diameter of the through hole is not greater than the inner diameter of the pipe and the inner diameter of the input end of the mass flowmeter.

6. A wear-resistant mass flowmeter as recited in claim 3, wherein, The inner diameter of the through hole gradually decreases in the direction from the end of the pipe connected with the mass flowmeter to the input end of the mass flowmeter.

7. A wear-resistant mass flowmeter as recited in claim 5, wherein, The through hole is a plurality of and is arranged at intervals.

8. A wear-resistant mass flowmeter as recited in claim 7, wherein, The wear-resistant sheet comprises a plurality of sheet structures arranged in a stacked combination, a plurality of the mounting holes are arranged at positions close to the ends of the sheet structures, and the through hole is arranged at a middle position of the sheet structure.

9. A wear-resistant mass flowmeter as recited in claim 1, wherein, The inner diameter of the through hole of the plurality of sheet structures gradually decreases in the direction from the end of the pipe connected with the mass flowmeter to the input end of the mass flowmeter, and the diameters of the ends of the through holes of two adjacent sheet structures close to each other are the same.

10. A wear-resistant mass flowmeter as recited in claim 1, wherein, A sealing gasket is arranged between the output end of the mass flowmeter and the end of the other group of pipes, and the sealing gasket is used for sealing the gap between the output end and the pipe. The material of the wear-resistant sheet is polytetrafluoroethylene.

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