Flowmeter device special for acid industry chromatography

Abstract

The utility model discloses a special flow meter device for acid industry chromatography, which comprises a connecting pipeline, and flange connecting ends are mounted at two ends of the connecting pipeline; a sealing assembly is arranged in the flange connecting end and comprises a sealing sleeve, one end of the sealing sleeve is inserted into the flange connecting end, and the other end of the sealing sleeve is inserted into an external pipeline; the sealing pieces are arranged in the middle and at the two ends of the sealing sleeve, the sealing pieces abut against the flange connecting end and an external pipeline respectively, an annular groove is formed in an opening of the flange connecting end, and a connecting protrusion is formed on the outer surface of the middle of the sealing sleeve; by means of the designed sealing assembly, continuous and multi-layer sealing barriers are formed in the flange connecting end, the barriers can effectively resist corrosion of corrosive media and can keep excellent sealing performance under the extreme working conditions of high pressure, high temperature and the like, and therefore long-term stable operation of the flowmeter is guaranteed, and the service life of the flowmeter is prolonged. Meanwhile, practicability and convenience of an industrial site are fully considered in design of the sealing assembly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to acid industry chromatography analysis technical field, concretely relates to a special flowmeter device for acid industry chromatography. BACKGROUND

[0002] In acid industry chromatography analysis, flowmeters are mainly used to measure and monitor the flow of mobile phase (usually acidic solution), ensuring the accuracy and stability of experimental conditions. This is crucial for obtaining reliable chromatography analysis results;

[0003] In the field application environment of industrial chromatography, standard industrial management processes are usually followed, and appropriate flow rates are maintained to ensure the stability and efficiency of operations. The volume of a single measurement in this environment is relatively small, only 10 liters or smaller measurement units, and the single run time is relatively short. Such characteristics pose special requirements for the selection of flowmeters, but traditional industrial flowmeters are mostly designed for large flow, long time tonnage measurement, which obviously cannot meet the special needs of the industrial chromatography field environment. Traditional flowmeters often fail to achieve the expected precision and stability when dealing with small flow and short time measurement tasks, thereby affecting the accuracy of experimental results. Therefore, in order to achieve accurate and stable flow measurement in the industrial chromatography field environment, a new type of flowmeter that is more suitable for small flow and short time measurement is needed.

[0004] The existing flowmeter faces extremely harsh use conditions when applied in the industrial chromatography field environment, especially in terms of sealing. The industrial chromatography environment is usually filled with various corrosive media, high pressure, and high temperature, and other complex working conditions, which pose a serious challenge to the sealing performance of the flowmeter. The sealing method of the mainstream flowmeter on the market mainly relies on the sealing ring at the flange end connection to achieve sealing. However, this traditional sealing method has exposed many problems in actual application, such as the aging and wear of the sealing ring, and the decline in sealing performance due to improper installation or long-term use, etc. These factors directly limit the overall sealing performance of the flowmeter, making it difficult to meet the high standard requirements of the industrial chromatography field. Therefore, how to improve the sealing performance of the flowmeter has become a key problem that needs to be solved in the current industrial chromatography field. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a special flowmeter device for acid industry chromatography to solve the problem of insufficient sealing of the current flowmeter mentioned in the background.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a special flowmeter device for acid industry chromatography, connecting pipeline is provided with flange connecting end at both ends, sealing assembly is arranged in the flange connecting end, the sealing assembly includes: sealing sleeve, one end is inserted into the flange connecting end, the other end is inserted into the external pipeline, so as to realize the sealing of the connecting place of flange connecting end and external pipeline, avoid the leakage in use.

[0007] As a preferred technical scheme in the utility model, the opening of the flange connecting end is provided with a ring groove, the middle outer surface of the sealing sleeve is formed with a connecting protrusion, the outer surface of the connecting protrusion is threaded, which is not shown in the figure, the connecting protrusion is screwed with the inner wall of the ring groove, so that stable installation is realized.

[0008] As a preferred technical scheme in the utility model, the both ends of the sealing sleeve and the both sides of the connecting protrusion are provided with end grooves, the sealing member includes a pressing ring inserted into the end groove of the both ends of the sealing sleeve, and an outer sealing ring and an inner sealing ring inserted into the end groove of the both sides of the connecting protrusion, the inner sealing ring abuts against the inner wall of the ring groove, and multiple sealing structures can form multiple seals inside the flange connecting end and the external pipeline.

[0009] As a preferred technical scheme in the utility model, the inside of the flange connecting end is further provided with a surface body, the surface body abuts against the pressing ring at one end of the sealing sleeve, and the pressing ring at the other end of the sealing sleeve abuts against the external pipeline with the surface body structure, which can form a sealing structure and a leakage prevention point inside the flange connecting end and the pipeline.

[0010] As a preferred technical scheme in the utility model, the surface body has a horizontal surface and an inclined surface, the horizontal surface abuts against the pressing ring, and the inclined surface of the pressing ring inside the flange connecting end gradually inclines towards the water flow direction, so as to facilitate the water flow.

[0011] As a preferred technical scheme in the utility model, the end face of the flange connecting end is provided with mounting screw holes at equal angles, the flange connecting end is provided with grooves communicating with all the mounting screw holes around the end, a sponge ring is inserted into the groove, the inner wall of the sponge ring has a notch with the same curved surface as the mounting screw hole, and when the bolt is screwed through the mounting screw hole and the external pipeline is disassembled, the lubricating oil is poured into the sponge ring, the bolt is lubricated by the contact between the sponge ring and the bolt.

[0012] As one preferred technical scheme in the utility model, the outside of the sponge ring is further sleeved with a partition ring, the partition ring is in the groove, the outer diameter of the partition ring is equal to the outer diameter of the flange connecting end, so as to realize the closure of the groove, an oil injection hole is arranged above the partition ring, lubricating oil is poured into the oil injection hole and is absorbed by the sponge ring.

[0013] As one preferred technical scheme in the utility model, the inside of the meter body is further installed with a flow sensor, a detection end of the flow sensor extends into the inside of the connecting pipeline, and is used for detecting the flow rate of the liquid in the connecting pipeline.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] Through the sealing assembly, continuous and multi-level sealing barriers are formed in the flange connecting end, the barriers can not only effectively resist the corrosion of corrosive medium, but also maintain excellent sealing performance under extreme working conditions such as high pressure and high temperature, so that the long-term stable operation of the flow meter is ensured, and the practicability and convenience of the industrial site are fully considered in the design of the sealing assembly. The structure is compact and easy to install, which can greatly reduce the installation difficulty and time cost. In addition, the maintenance and replacement of the assembly are relatively simple, which helps to reduce the later operation and maintenance cost and improve the overall work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a sectional view of the flange connecting end of the utility model;

[0018] Figure 3 It is a sectional view of the flange connecting end of the utility model; Figure 2

[0019] Figure 4 It is an enlarged schematic view of the B area in the utility model; Figure 2

[0020] In the drawing:

[0021] 100, connecting pipeline; 101, flange connecting end; 102, meter body; 103, sponge ring; 104, oil injection hole; 105, partition ring; 106, mounting screw hole;

[0022] 200, sealing sleeve; 201, end groove; 202, outer sealing ring; 203, connecting protrusion; 204, ring groove; 205, pressing ring; 206, outer sealing ring. DETAILED DESCRIPTION

[0023] ​​The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0024] Please refer to Figures 1 to 4 The present application provides a technical solution: a flowmeter device special for acid industrial chromatography, comprising

[0025] The connecting pipeline 100 is provided with flange connecting ends 101 at both ends thereof;

[0026] The flange connecting end 101 is provided with a sealing assembly, and the sealing assembly comprises:

[0027] The sealing sleeve 200 is inserted into the flange connecting end 101 at one end and inserted into the external pipeline at the other end, so as to realize sealing of the connecting position between the flange connecting end 101 and the external pipeline;

[0028] The sealing members are arranged at the middle part and both ends of the sealing sleeve 200 and abut against the flange connecting end 101 and the external pipeline respectively, and multiple sealing members are arranged to realize multiple sealing of the connecting position, so as to improve the sealing effect and avoid leakage in use.

[0029] In the embodiment, the opening of the flange connecting end 101 is provided with a ring groove 204, and the middle outer surface of the sealing sleeve 200 is formed with a connecting protrusion 203, the outer surface of the connecting protrusion 203 is provided with threads, which are not shown in the figure, and the connecting protrusion 203 is threadedly connected with the inner wall of the ring groove 204, so as to realize stable installation.

[0030] In the embodiment, the both ends of the sealing sleeve 200 and the both sides of the connecting protrusion 203 are provided with end grooves 201, the sealing members comprise a pressing ring 205 clamped into the end grooves 201 at both ends of the sealing sleeve 200, and an outer sealing ring 202 and an inner sealing ring 206 clamped into the end grooves 201 at both sides of the connecting protrusion 203, the inner sealing ring 206 abuts against the inner wall of the ring groove 204, and multiple sealing structures can form multiple sealing in the internal part of the flange connecting end 101 and the external pipeline.

[0031] In the embodiment, the internal part of the flange connecting end 101 is further provided with a table body 102, the table body 102 abuts against the pressing ring 205 at one end of the sealing sleeve 200, and the pressing ring 205 at the other end of the sealing sleeve 200 abuts against the external pipeline with the table body 102 structure, so as to form a sealing structure and prevent leakage in the internal part of the flange connecting end 101 and the pipeline.

[0032] In the embodiment, the table body 102 has horizontal surface and inclined surface, wherein the horizontal surface is in contact with the pressing ring 205, and the inclined surface of the pressing ring 205 inside the flange connecting end 101 is gradually inclined towards the water flow direction, so as to facilitate the water flow.

[0033] In the embodiment, the end surface of the flange connecting end 101 is provided with mounting screw holes 106 at equal angles, and the periphery of the end of the flange connecting end 101 is provided with a groove in communication with all the mounting screw holes 106, and a sponge ring 103 is clamped in the groove, the inner wall of the sponge ring 103 is provided with a notch in the same curved surface as the mounting screw holes 106, and when the bolt is threaded through the mounting screw hole 106 and disassembled from the external pipeline, the lubricating oil is poured into the sponge ring 103, and the lubricating oil is absorbed by the sponge ring 103 and contacted with the bolt, so as to realize the lubrication of the bolt.

[0034] In the embodiment, the outer part of the sponge ring 103 is further sleeved with a partition ring 105, the partition ring 105 is in the groove, and the outer diameter of the partition ring 105 is equal to the outer diameter of the flange connecting end 101, so as to realize the closure of the groove, and the oil injection hole 104 is provided above the partition ring 105, the lubricating oil is poured through the oil injection hole 104 and absorbed by the sponge ring 103.

[0035] In the embodiment, the inside of the table body 102 is further provided with a flow sensor, the detection end of the flow sensor is inserted into the inside of the connecting pipeline 100, and the flow sensor is used for detecting the flow rate of the liquid in the connecting pipeline 100.

[0036] Although the embodiments of the utility model have been shown and described (see the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A flow meter device specifically for acid industrial chromatography, comprising: A connecting pipe (100) is provided with flange connection ends (101) at both ends; Its features are: A sealing assembly is provided inside the flange connection end (101), the sealing assembly comprising: The sealing sleeve (200) is inserted into the flange connection end (101) at one end and into the external pipe at the other end; A sealing element is provided in the middle and at both ends of the sealing sleeve (200), and the sealing element abuts against the flange connection end (101) and the external pipe respectively.

2. The flow meter device for acid industry chromatography according to claim 1, characterized in that: The flange connection end (101) has an annular groove (204) at its opening, and the outer surface of the middle part of the sealing sleeve (200) has a connecting protrusion (203) formed thereon. The outer surface of the connecting protrusion (203) is threaded, and the connecting protrusion (203) is threaded to the inner wall of the annular groove (204).

3. The flow meter device for acid industrial chromatography according to claim 2, characterized in that: The sealing sleeve (200) has end grooves (201) at both ends and on both sides of the connecting protrusion (203). The sealing element includes a pressure ring (205) that is inserted into the end grooves (201) at both ends of the sealing sleeve (200), and an outer sealing ring (202) and an inner sealing ring (206) that are inserted into the end grooves (201) on both sides of the connecting protrusion (203). The inner sealing ring (206) abuts against the inner wall of the annular groove (204).

4. The flow meter device for acid industrial chromatography according to claim 3, characterized in that: The flange connection end (101) is also equipped with a gauge body (102), which abuts against the pressure ring (205) at one end of the sealing sleeve (200), while the pressure ring (205) at the other end of the sealing sleeve (200) abuts against the external pipe with the gauge body (102) structure.

5. The flow meter device for acid industrial chromatography according to claim 4, characterized in that: The body (102) has a horizontal surface and an inclined surface, wherein the horizontal surface abuts against the pressure ring (205), and the inclined surface of the pressure ring (205) located inside the flange connection end (101) gradually tilts towards the direction of water flow.

6. The flow meter device for acid industrial chromatography according to claim 1, characterized in that: The flange connection end (101) has mounting screw holes (106) at equal angles on its end face, and the flange connection end (101) has a groove around its end that connects all the mounting screw holes (106). A sponge ring (103) is inserted into the groove. The inner wall of the sponge ring (103) has a notch on the same curved surface as the mounting screw holes (106).

7. The flow meter device for acid industrial chromatography according to claim 6, characterized in that: The outer side of the sponge ring (103) is also fitted with a spacer (105), which is located in the groove, and the outer diameter of the spacer (105) is equal to the outer diameter of the flange connection end (101). An oil injection hole (104) is opened directly above the spacer (105).

8. The flow meter device for acid industry chromatography according to claim 5, characterized in that: A flow sensor is also installed inside the meter body (102), and the detection end of the flow sensor extends into the interior of the connecting pipe (100).

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