Pipeline leakage alarm device

Abstract

The utility model discloses a pipeline leakage alarm device, which comprises a pipeline and a supporting block, and is characterized in that a first mass flow meter, a second mass flow meter, a third mass flow meter and a fourth mass flow meter are arranged on the pipeline, a box body is arranged on the supporting block, and the supporting block is arranged on the box body. A controller and a displayer are installed in the box body, a buzzer alarm is installed on the top of the box body, and the first mass flow meter, the second mass flow meter, the third mass flow meter and the fourth mass flow meter convert the mass of flowing liquid into-ma current signals and transmit the-ma current signals to the controller. The controller collects current-ma signals of the first mass flow meter, the second mass flow meter, the third mass flow meter and the fourth mass flow meter and compares the front mass flow meter with the rear mass flow meter to judge whether leakage occurs or not, if leakage occurs, the controller sends out a control instruction to start the buzzer alarm, and therefore the effect of timely alarming is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a pipeline leakage alarm device. Background Art

[0002] Pipeline refers to the pipe that transmits working fluid in the hydraulic system. Compared with pipeline, pipeline is a rationally arranged pipeline system. The full name of pipeline is pipeline system, which is composed of pipes, pipe fittings and valves. It is mainly used in chemical plants to connect various devices and transport fluids in and out of equipment for physical and chemical reactions.

[0003] In addition, the existing patent CN207570617U discloses an alarm flowmeter, including a pipeline, an inlet flange, an outlet flange, and a digital display controller; the inlet flange and the outlet flange are respectively arranged on both sides of the pipeline, and the controller is arranged on the side wall of the pipeline; it also includes a first pressure sensor, a second pressure sensor, a comparator, and a buzzer; the first pressure sensor is used to detect the fluid pressure at the inlet flange; the second pressure sensor is used to detect the fluid pressure at the outlet flange; the comparator is respectively connected to the first pressure sensor and the second pressure sensor, and compares the fluid pressure at the inlet flange and the fluid pressure at the outlet flange; the buzzer is connected to the comparator, and sounds an alarm when the fluid pressure difference between the inlet flange and the outlet flange is greater than a preset value; wherein the comparator and the buzzer are integrated in the controller.

[0004] The existing technology only focuses on how to improve the accuracy of the leakage point, and there is less research on how to control the leaking pipeline in time. Since the length of the current pipelines is very long, when a pipeline leakage is determined, an alarm needs to be issued in time, and at the same time, the leakage point of the pipeline needs to be roughly determined so that the leakage point of the pipeline can be reached as quickly as possible to avoid greater losses caused by the leakage. For this reason, this scheme proposes a pipeline leakage alarm device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a pipeline leakage alarm device to solve the problem raised in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pipeline leakage alarm device includes a pipeline and a support block, characterized in that a first mass flow meter is installed on the pipeline through a flange, a second mass flow meter is installed on the pipeline through a flange, a third mass flow meter is installed on the pipeline through a flange, and a fourth mass flow meter is installed on the pipeline through a flange, a base plate is provided at the bottom of the support block, a box is installed on the support block through a flange, a controller is installed inside the box, a display is installed inside the box, and a buzzer alarm is installed on the top of the box.

[0008] Preferably, the first mass flow meter is electrically connected to the controller, the second mass flow meter is electrically connected to the controller, the third mass flow meter is electrically connected to the controller, the fourth mass flow meter is electrically connected to the controller, the controller is electrically connected to the display, and the controller is electrically connected to the buzzer alarm.

[0009] Preferably, a supporting mechanism is also included, which includes a first fixed block, a first bottom plate is provided on the first fixed block, a hole is formed on the first bottom plate, the first bottom plate is connected to the base plate by bolts, an arc groove is formed on the first fixed block, the arc groove fits on the outer circumferential surface of the pipe, the first fixed block contacts a second fixed block, a second bottom plate is provided on the second fixed block, a hole is formed on the second bottom plate, the second bottom plate is connected to the base plate by bolts, an arc groove is formed on the second fixed block, and the arc groove fits on the outer circumferential surface of the pipe.

[0010] Preferably, a fixing mechanism is also included, the fixing mechanism includes a limiting ring, a group of connecting plates are arranged on the limiting ring, threaded holes are opened on the two connecting plates, and threaded columns are threadedly connected in the threaded holes.

[0011] Preferably, a group of hinge seats are provided on the box body, the hinge seats are hinged with door panels, a fixed plate is provided on the door panel, a pulling plate is provided on the fixed plate, an arc-shaped snap-fitting block is provided on the fixed plate, an arc-shaped snap-fitting groove is opened on the box body, and the arc-shaped snap-fitting block is matched with the arc-shaped snap-fitting groove.

[0012] The utility model has the following beneficial effects:

[0013] The first mass flow meter, the second mass flow meter, the third mass flow meter and the fourth mass flow meter convert the mass of the liquid flowing through into -ma current signals and transmit them to the controller. The controller collects the current -ma signals of the first mass flow meter, the second mass flow meter, the third mass flow meter and the fourth mass flow meter, and compares the two mass flow meters to determine whether a leak occurs. If a leak occurs, the controller sends a control command to start the buzzer alarm, thereby achieving the effect of timely alarm. At the same time, the display can show which section of the flow meter has changed its rated flow rate, thereby determining which section of the pipeline has leaked, so that the leak point can be rushed to in time for timely repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structural diagram of the alarm device;

[0015] Figure 2 It is a structural diagram of the box;

[0016] Figure 3 It is a structural diagram of the supporting mechanism;

[0017] Figure 4It is a structural diagram of the fixing mechanism.

[0018] In the figure: 1. pipeline; 2. first mass flowmeter; 3. second mass flowmeter; 4. third mass flowmeter; 5. fourth mass flowmeter; 6. support block; 7. box body; 701. hinge seat; 702. door panel; 703. fixing plate; 704. pulling plate; 705. arc-shaped locking block; 706. arc-shaped slot; 8. controller; 9. display; 10. buzzer alarm; 11. base plate; 12. support mechanism; 1201. first fixing block; 1202. first bottom plate; 1203. second fixing block; 1204. second bottom plate; 13. fixing mechanism; 1301. limit ring; 1302. connecting plate; 1303. threaded column. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-4A pipeline leakage alarm device comprises a pipeline 1 and a support block 6, characterized in that a first mass flowmeter 2 is installed on the pipeline 1 through a flange, a second mass flowmeter 3 is installed on the pipeline 1 through a flange, a third mass flowmeter 4 is installed on the pipeline 1 through a flange, a fourth mass flowmeter 5 is installed on the pipeline 1 through a flange, a base plate 11 is provided at the bottom of the support block 6, a box body 7 is installed on the support block 6 through a flange, a controller 8 is installed inside the box body 7, a display 9 is installed inside the box body 7, a buzzer alarm 10 is installed on the top of the box body 7, the first mass flowmeter 2, the second mass flowmeter 3, the third mass flowmeter 4 and the fourth mass flowmeter 5 are all ROTAMASS RCCT34 mass flowmeters, and the model of the controller 8 is Siemens PLC S7-200CPU224XP, the model of the display 9 is Weiluntong touch screen TK6070i, the first mass flow meter 2 is electrically connected to the controller 8, the second mass flow meter 3 is electrically connected to the controller 8, the third mass flow meter 4 is electrically connected to the controller 8, the fourth mass flow meter 5 is electrically connected to the controller 8, the controller 8 is electrically connected to the display 9 through the RS485 communication line, and the controller 8 is connected to the buzzer alarm 10 through the RS485 communication line. At the same time, the intervals between the first mass flow meter 2, the second mass flow meter 3, the third mass flow meter 4 and the fourth mass flow meter 5 can be set according to the length of the pipeline 4. The first mass flow meter 2, the second mass flow meter 3, the third mass flow meter 4 and the fourth mass flow meter 5 are electrically connected to the controller 8. The mass flow meter 3, the third mass flow meter 4 and the fourth mass flow meter 5 convert the mass of the liquid flowing through into a 4-20ma current signal and transmit it to the controller 9. The controller 9 collects the current 4-20ma signal of the first mass flow meter 2, the second mass flow meter 3, the third mass flow meter 4 and the fourth mass flow meter 5, and compares the two mass flow meters to determine whether a leak occurs. If a leak occurs, the controller 9 sends a control command to start the buzzer alarm 10, thereby achieving the effect of timely alarm. At the same time, the display 9 can be used to see which section of the flow meter has changed its flow rate, thereby determining which section of the pipeline has leaked, so that the leak can be rushed to the leak point in time and repaired in time.

[0021] The supporting mechanism 12 includes a first fixed block 1201, on which a first bottom plate 1202 is provided, a hole is provided on the first bottom plate 1202, the first bottom plate 1202 is connected to the base plate 11 by bolts, the first fixed block 1201 is provided with an arc groove, the arc groove is matched with the outer peripheral surface of the pipeline 1, the first fixed block 1201 contacts with a second fixed block 1203, on which a second bottom plate 1204 is provided, a hole is provided on the second bottom plate 1204, the second bottom plate 1204 is connected to the base plate 11 by bolts, the second fixed block 1203 is provided with an arc groove, the arc groove is matched with the outer peripheral surface of the pipeline 1, the pipeline 1 is fixed by the first fixed block 1201 and the second fixed block 1203, and then the first bottom plate 1202 and the second bottom plate 1204 are fixed to the base plate 11 by bolts, so as to achieve the function of fixing the pipeline.

[0022] The fixing mechanism 13 includes a limit ring 1301, on which a group of connecting plates 1302 are arranged. Threaded holes are opened on the two connecting plates 1302, and threaded columns 1303 are threadedly connected in the threaded holes. The limit ring 1301 is sleeved on the pipeline 1, and then the threaded column 1303 is rotated to tighten the connecting plate 1302, thereby changing the inner diameter of the limit ring 1301, so that the connecting lines between the first mass flow meter 2, the second mass flow meter 3, the third mass flow meter 4 and the fourth mass flow meter 5 and the controller 8 are fixed on the pipeline 1, thereby achieving the purpose of storage.

[0023] A group of hinge seats 701 are provided on the box body 7, and the hinge seats 701 are hinged with a door panel 702. A fixing plate 703 is provided on the door panel 702, and a pulling plate 704 is provided on the fixing plate 703. An arc-shaped snap-fitting block 705 is provided on the fixing plate 703. An arc-shaped snap-fitting groove 706 is opened on the box body 7, and the arc-shaped snap-fitting block 705 is matched with the arc-shaped snap-fitting groove 706, and is snap-fitted and connected with the arc-shaped snap-fitting block 705 and the arc-shaped snap-fitting groove 706, so as to fix the door panel 702.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipeline leakage alarm device, comprising a pipeline (1), characterized in that: The pipeline (1) is equipped with a first mass flow meter (2) via a flange, the pipeline (1) is equipped with a second mass flow meter (3) via a flange, the pipeline (1) is equipped with a third mass flow meter (4) via a flange, and the pipeline (1) is equipped with a fourth mass flow meter (5) via a flange; It also comprises a support block (6), a base plate (11) being arranged at the bottom of the support block (6), a box (7) being mounted on the support block (6), a controller (8) being mounted inside the box (7), a display (9) being mounted inside the box (7), and a buzzer alarm (10) being mounted on the top of the box (7).

2. A pipeline leakage alarm device according to claim 1, characterized in that: The first mass flow meter (2) is electrically connected to the controller (8), the second mass flow meter (3) is electrically connected to the controller (8), the third mass flow meter (4) is electrically connected to the controller (8), the fourth mass flow meter (5) is electrically connected to the controller (8), the controller (8) is electrically connected to the display (9), and the controller (8) is electrically connected to the buzzer alarm (10).

3. A pipeline leakage alarm device according to claim 1, characterized in that: The invention also comprises a supporting mechanism (12), wherein the supporting mechanism (12) comprises a first fixing block (1201), wherein a first bottom plate (1202) is provided on the first fixing block (1201), wherein a hole is provided on the first bottom plate (1202), wherein the first bottom plate (1202) is connected to the base plate (11) by bolts, wherein an arc groove is provided on the first fixing block (1201), wherein the arc groove fits on the outer peripheral surface of the pipe (1), wherein the first fixing block (1201) contacts a second fixing block (1203), wherein a second bottom plate (1204) is provided on the second fixing block (1203), wherein a hole is provided on the second bottom plate (1204), wherein the second bottom plate (1204) is connected to the base plate (11) by bolts, wherein an arc groove is provided on the second fixing block (1203), wherein the arc groove fits on the outer peripheral surface of the pipe (1).

4. A pipeline leakage alarm device according to claim 1, characterized in that: The device also includes a fixing mechanism (13), wherein the fixing mechanism (13) includes a limiting ring (1301), a group of connecting plates (1302) are arranged on the limiting ring (1301), threaded holes are opened on two connecting plates (1302), and threaded columns (1303) are threadedly connected in the threaded holes.

5. A pipeline leakage alarm device according to claim 1, characterized in that: The box body (7) is provided with a group of hinge seats (701), the hinge seats (701) are hinged with a door panel (702), the door panel (702) is provided with a fixing plate (703), the fixing plate (703) is provided with a pulling plate (704), the fixing plate (703) is provided with an arc-shaped snap-fit ​​block (705), the box body (7) is provided with an arc-shaped snap-fit ​​groove (706), and the arc-shaped snap-fit ​​block (705) is matched with the arc-shaped snap-fit ​​groove (706).

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