Flow pipeline anti-blocking device applied to SCADA (supervisory control and data acquisition) system

Abstract

The utility model relates to the technical field of SCADA (supervisory control and data acquisition) system pipelines, in particular to a flow pipeline anti-blocking device applied to an SCADA system, which comprises a first mounting flange and a second mounting flange which are arranged on an SCADA system pipeline, and a pore plate is arranged between the first mounting flange and the second mounting flange. The inner walls of the upper ends of the first mounting flange and the second mounting flange are provided with pressure guide pipes in a communicating manner; the lower ends of the pressure guide pipes on the two sides are provided with pressure guide ports which are distributed in a communicating manner; and an anti-blocking mechanism. By means of the anti-blocking mechanism, online dredging and cleaning can be conveniently carried out when the pressure leading opening of the orifice plate type flow meter installed on the SCADA system pipeline is blocked, pressure taking reliability is guaranteed, large problems caused by small faults are effectively avoided, in addition, operation is convenient and fast in daily overhaul and maintenance, and the pressure leading opening of the orifice plate type flow meter installed on the SCADA system pipeline is prevented from being blocked. And the dredging operation of the pressure leading port of the flow pipeline in the SCADA system can be completed without dismounting.

Description

Technical Field

[0001] The utility model relates to the technical field of SCADA system pipelines, and particularly relates to a flow pipeline anti-blocking device applied to the SCADA system. Background Art

[0002] The SCADA system is the basis for the safety monitoring of pipe networks. At present, some enterprise gas area R-SCADA systems are designed for centralized deployment, realizing cross-regional pipe network control interconnection and interoperability, centralized monitoring and management, and unified technical standards for station equipment. This eliminates the local system construction and operation and maintenance investment of member enterprises as a whole, shields network information security risks, and supports subsequent gas unified dispatching and display functions. At the same time, gas alarms are connected to the system and applied to comprehensively ensure the gas use safety of users, and have been widely promoted and applied in the gas industry.

[0003] At present, orifice plate flowmeters are used in SCADA system pipelines as detection devices for detecting the gas flow in the pipelines. Its working principle is to place an orifice plate in the pipeline, lead out pressure-taking pipelines on both sides of the orifice plate to detect the pressures at both ends, and use the change in the pressure difference to convert the flow rate of the flowing gas.

[0004] However, in the actual use process, there are great differences in the cleanliness of the working medium. After using for a period of time, the pressure-taking ports at both ends of the orifice plate are often blocked by impurities in the gas, which even affects the normal operation of the flowmeter, resulting in failures, and requires shutdown and disassembly for treatment, which is troublesome to operate.

[0005] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is the closest prior art. Content of the Utility Model

[0006] The purpose of the utility model is to solve the above deficiencies and provide a flow pipeline anti-blocking device applied to the SCADA system.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme: A flow pipeline anti-blocking device applied to the SCADA system, including a first mounting flange and a second mounting flange arranged on the SCADA system pipeline. An orifice plate for forming a local contraction in the SCADA system pipeline and generating a pressure difference is arranged between the first mounting flange and the second mounting flange. The inner walls of the upper ends of the first mounting flange and the second mounting flange are both communicated with a pressure-leading pipe, and pressure-leading ports are arranged at the lower ends of the pressure-leading pipes on both sides in a communicating distribution;

[0008] An anti-blocking mechanism for dredging the pressure-leading ports.

[0009] Furthermore, the anti-blocking mechanism includes:

[0010] The first cleaning component is located on the air inlet side of the orifice plate and is used to dredge the pressure guiding port on this side;

[0011] The second cleaning component is located on the air outlet side of the orifice plate and is used to dredge the pressure guiding port on this side.

[0012] Furthermore, the first cleaning component and the second cleaning component have the same structure, both including:

[0013] A fixed ring is correspondingly arranged at the air inlet end of the pressure guiding port;

[0014] An arc-shaped through port is correspondingly arranged on the fixed ring corresponding to the pressure guiding port and is used to connect the SCADA system pipeline and the pressure guiding pipe;

[0015] A cleaning arc plate is arranged on the fixed ring and is symmetrical with the corresponding arc-shaped through port in position, and is used to clean at the corresponding pressure guiding port;

[0016] There are two internal gear rings, which are arranged front and back on the inner edge of the fixed ring;

[0017] Gear column blocks are meshingly arranged on the two internal gear rings.

[0018] Furthermore, there are two gear column blocks, which are respectively arranged in the first mounting flange and the second mounting flange.

[0019] Furthermore, a double-shaft motor is arranged at the center of the two gear column blocks.

[0020] Furthermore, differential pressure transmitters with three-valve groups are arranged at the upper ends of the two pressure guiding pipes.

[0021] Compared with the prior art, the present utility model has the following beneficial effects: Through the anti-blocking mechanism provided, the present utility model can conveniently perform on-line dredging and cleaning when the pressure guiding port of the orifice flowmeter installed on the SCADA system pipeline in this embodiment has a blockage fault, ensuring the reliability of pressure taking, effectively avoiding major problems caused by minor faults. In addition, during daily maintenance, the operation is convenient, and the dredging operation of the pressure guiding port of the flow pipeline in the SCADA system can be completed without disassembly. Description of the Drawings

[0022] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0023] Figure 1 It is a three-dimensional structure diagram of one perspective of the whole of an embodiment of the present utility model;

[0024] Figure 2 A perspective three-dimensional structure diagram of another view of the whole of an embodiment of the present utility model;

[0025] Figure 3 A perspective three-dimensional structure diagram of one view of the anti-blocking mechanism of an embodiment of the present utility model;

[0026] Figure 4 is Figure 3 The enlarged structure diagram at position A in

[0027] In the figure: 1. First installation flange; 2. Second installation flange; 3. Orifice plate; 4. Pressure guiding pipe; 41. Pressure guiding port; 5. Anti-blocking mechanism; 51. Fixed ring; 52. Arc-shaped through port; 53. Cleaning arc plate; 54. Internal gear ring; 55. Gear column block; 6. Biaxial motor; 7. Differential pressure transmitter. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, "a plurality" means more than two. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0031] Such as Figures 1-4As shown in the figure, a flow pipeline anti-blocking device of the present utility model is applied to the pipeline of the SCADA system and is used to clean the blockage of the pressure tapping port 41 of the flowmeter installed thereon. It includes a first mounting flange 1 and a second mounting flange 2 arranged on the SCADA system pipeline. A orifice plate 3 for forming a local contraction and generating a pressure difference inside the SCADA system pipeline is arranged between the first mounting flange 1 and the second mounting flange 2. The inner walls at the upper ends of the first mounting flange 1 and the second mounting flange 2 are both communicated with a pressure guiding pipe 4. The lower ends of the pressure guiding pipes 4 on both sides are provided with pressure tapping ports 41 that are communicatively distributed;

[0032] An anti-blocking mechanism 5 for dredging the pressure tapping port 41.

[0033] In a specific implementation, by using the first mounting flange 1 and the second mounting flange 2 on the SCADA system pipeline to fixedly install the device for measuring the medium flow rate. Among them, the two pressure guiding pipes 4 welded on the first mounting flange 1 and the second mounting flange 2 and communicating with the inside of the SCADA system pipeline, and the pressure tapping port 41 communicated with the lower end of the pressure guiding pipe 4. When the medium filled in the SCADA system pipeline flows through the orifice plate 3, local contraction will occur, the flow bundle will be concentrated, the flow velocity will increase, the static pressure will decrease, and a static pressure difference will be generated before and after the orifice plate 3. This pressure difference has a certain functional relationship with the flow rate. The greater the flow rate, the greater the pressure difference, so as to obtain the flow rate data of the SCADA system pipeline.

[0034] Also, through the anti-blocking mechanism 5 installed at the pressure tapping port 41, it can conveniently perform on-line dredging and cleaning when the pressure tapping port 41 of the orifice plate flowmeter installed on the SCADA system pipeline fails to block in this embodiment, ensuring the reliability of pressure taking.

[0035] It should be noted that the flow rate measurement of the medium on the SCADA system pipeline adopts an orifice plate flowmeter of conventional technology.

[0036] In one embodiment, the anti-blocking mechanism 5 includes:

[0037] A first cleaning component, located on the air inlet side of the orifice plate 3, for dredging the pressure tapping port 41 on this side;

[0038] A second cleaning component, located on the air outlet side of the orifice plate 3, for dredging the pressure tapping port 41 on this side. Designed in this way, through the first cleaning component and the second cleaning component installed in the first mounting flange 1 and the second mounting flange 2 and corresponding to the pressure tapping port 41 on both sides of the orifice plate 3, on-line dredging and cleaning can be conveniently performed, ensuring the reliability of pressure taking on both sides of the orifice plate 3.

[0039] In one embodiment, the first cleaning component and the second cleaning component have the same structure, and both include:

[0040] The fixed ring 51 is correspondingly arranged at the air inlet end of the pressure guiding port 41;

[0041] The arc-shaped through port 52 is correspondingly arranged on the fixed ring 51 corresponding to the pressure guiding port 41 and is used to connect the SCADA system pipeline and the pressure guiding pipe 4;

[0042] The cleaning arc plate 53 is arranged on the fixed ring 51 and is symmetrical with the corresponding arc-shaped through port 52 in position and is used for cleaning at the corresponding pressure guiding port 41;

[0043] There are two internal gear rings 54, which are arranged at the inner edge of the fixed ring 51 front and back;

[0044] The gear column block 55 is meshingly arranged on the two internal gear rings 54. With such a design, through the arc-shaped through port 52 machined by turning through on one side of the fixed ring 51 and the cleaning arc plate 53 assembled in the groove machined by turning on the other side of the fixed ring 51 symmetrical with the arc-shaped through port 52, in the initial state, the arc-shaped through port 52 will be arranged corresponding to the pressure guiding port 41, maintaining the communication state between the inside of the SCADA system pipeline and the pressure guiding pipe 4, and realizing stable pressure taking measurement. In addition, the two internal gear rings 54 welded to the inner edge of the fixed ring 51 front and back and the gear column block 55 meshingly connected to the internal gear rings 54 will transmit the acting force to the fixed ring 51, driving the fixed ring 51 and the cleaning arc plate 53 assembled on the fixed ring 51 to rotate inside the corresponding first installation flange 1 and second installation flange 2, implementing the online dredging and cleaning of the pressure guiding port 41, and ensuring the reliability of pressure taking on both sides of the orifice plate 3.

[0045] It should be noted that a plurality of elastic protrusions are integrally formed on the outer surface of the cleaning arc plate 53, which can perform dredging and cleaning operations on the pressure guiding port 41.

[0046] In one embodiment, there are two gear column blocks 55, which are respectively arranged in the first installation flange 1 and the second installation flange 2. With such a design, by being meshingly connected to the internal gear rings 54 on both sides inside the first installation flange 1 and the second installation flange 2 respectively, when the gear column block 55 is subjected to an external force, it will transmit the rotational acting force to drive the fixed rings 51 on both sides to rotate inside the corresponding first installation flange 1 or second installation flange 2, assisting in realizing the cleaning function.

[0047] In one embodiment, a dual-axis motor 6 is arranged at the center of the two gear column blocks 55. With such a design, by sleeving and fixing the power shafts on both sides of the dual-axis motor 6 to the gear column blocks 55 on both sides respectively, when the dual-axis motor 6 is started, the gear column blocks 55 connected to the couplings on its power shafts can be driven to rotate.

[0048] In one embodiment, a differential pressure transmitter 7 with a three-valve group is provided at the upper ends of the two pressure guiding pipes 4. With such a design, through the differential pressure transmitter 7 with a three-valve group connected to the upper ends of the pressure guiding pipes 4, and with a digital display meter designed on the differential pressure transmitter 7, the flow rate data flowing through the pipeline inside the SCADA system can be displayed in real time.

[0049] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and that the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A flow pipeline anti-blocking device applied to a SCADA system, comprising a first mounting flange (1) and a second mounting flange (2) arranged on the pipeline of the SCADA system. A orifice plate (3) for forming a local contraction and generating a pressure difference in the pipeline of the SCADA system is arranged between the first mounting flange (1) and the second mounting flange (2). Pressure guiding pipes (4) are communicated and arranged on the inner walls of the upper ends of the first mounting flange (1) and the second mounting flange (2). It is characterized in that: The lower ends of the two pressure guiding pipes (4) are provided with pressure guiding ports (41) which are distributed in a communicating manner; A clogging prevention mechanism (5) for dredging the pressure guiding ports (41).

2. The flow pipeline anti-blocking device applied to the SCADA system according to claim 1, characterized in that, The clogging prevention mechanism (5) includes: A first cleaning component, located on the air inlet side of the orifice plate (3), for dredging the pressure guiding port (41) on this side; A second cleaning component, located on the air outlet side of the orifice plate (3), for dredging the pressure guiding port (41) on this side.

3. The flow pipeline anti-blocking device applied to the SCADA system according to claim 2, wherein, The first cleaning component and the second cleaning component have the same structure, and both include: A fixed ring (51), correspondingly arranged at the air inlet end of the pressure guiding port (41); An arc-shaped through port (52), correspondingly arranged on the fixed ring (51) corresponding to the pressure guiding port (41), for communicating the SCADA system pipeline and the pressure guiding pipe (4); A cleaning arc plate (53), arranged on the fixed ring (51) and symmetrically positioned with respect to the corresponding arc-shaped through port (52), for cleaning the corresponding pressure guiding port (41); Internal gear rings (54), two in number and arranged front and back on the inner edge of the fixed ring (51); Gear column blocks (55), meshingly arranged on the two internal gear rings (54).

4. The flow pipeline anti-blocking device applied to the SCADA system according to claim 3, wherein: There are two gear column blocks (55), which are respectively arranged in the first mounting flange (1) and the second mounting flange (2).

5. The flow pipeline anti-blocking device applied to the SCADA system according to claim 4, characterized in that: A double-shaft motor (6) is arranged at the center of the two gear column blocks (55).

6. The flow pipeline anti-blocking device applied to the SCADA system according to claim 1, characterized in that: Differential pressure transmitters (7) with three-valve groups are arranged at the upper ends of the two pressure guiding pipes (4).

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