A monitoring and protection device for back pressure of safety valve and bursting disc in series

Abstract

The utility model discloses a monitoring and protection device for back pressure of a safety valve and a bursting disc in series, comprising: a safety valve, a bursting disc, a pressure gauge, and a pressure sensor, wherein the inlet of the safety valve is used to be connected with a pressure vessel, the bursting disc is arranged at the outlet of the safety valve, the pressure gauge is arranged between the safety valve and the bursting disc, and the pressure sensor is arranged at the outlet of the pressure gauge. The back pressure of the safety valve and the bursting disc in series is monitored and controlled.

Description

Technical Field

[0001] The utility model relates to the field of steel production, in particular to a monitoring and protection device for back pressure of a safety valve and a bursting disc connected in series. Background Art

[0002] Pressure vessels are widely used in various fields, such as chemical, petroleum, metal smelting and other industries. In order to ensure the safety and reliability of pressure vessels, the pressure inside the container needs to be monitored and controlled. Common pressure control devices include safety valves and bursting discs. The safety valve can automatically release the pressure when the pressure of the pressure vessel exceeds the preset value to ensure the safe operation of the container. The bursting disc can quickly rupture when the pressure exceeds the burst pressure, release the pressure in the container, and avoid the container from overpressure rupture. However, there may be back pressure between the safety valve and the bursting disc, which may affect the safety and reliability of the container. Utility Model Content

[0003] The utility model aims to provide a monitoring and protection device for the back pressure of a safety valve and a bursting disc connected in series, so as to monitor and control the back pressure of the safety valve and the bursting disc connected in series.

[0004] A monitoring and protection device for back pressure of a safety valve and a bursting disc connected in series, comprising: a safety valve, a bursting disc, a pressure gauge, and a pressure sensor, wherein the inlet of the safety valve is used to be connected to a pressure vessel, the bursting disc is arranged at the outlet of the safety valve, the pressure gauge is arranged between the safety valve and the bursting disc, and the pressure sensor is arranged at the outlet of the pressure gauge.

[0005] In one of the embodiments, the monitoring and protection device for the back pressure of the safety valve and the bursting disc in series further comprises a communication board, and the communication board is connected to the pressure sensor.

[0006] In one of the embodiments, the monitoring and protection device for the back pressure of the safety valve and the bursting disc in series also includes an audible and visual alarm, and the communication board is connected to the audible and visual alarm signal.

[0007] In one of the embodiments, the communication board is wirelessly connected to the sound and light alarm.

[0008] In one of the embodiments, the monitoring and protection device for the back pressure of the safety valve and the bursting disc in series further includes a monitoring device, and the communication board is connected to the monitoring device by signal.

[0009] In one of the embodiments, the communication board is wirelessly connected to the monitoring device.

[0010] In one of the embodiments, the monitoring and protection device for the back pressure of the safety valve and the bursting disc in series further comprises a vent pipe, which is arranged at the outlet of the safety valve, and the vent pipe and the bursting disc are connected in parallel.

[0011] In one embodiment, the pressure gauge and the pressure sensor are located between the safety valve and the relief pipe.

[0012] Compared with the prior art, the monitoring and protection device for back pressure of the safety valve and bursting disc in series of the utility model has the following advantages:

[0013] 1. The utility model realizes the monitoring and control of the back pressure between the safety valve and the bursting disc by connecting a pressure gauge and a pressure sensor in series between the safety valve and the bursting disc, thereby improving the safety and reliability of the pressure vessel.

[0014] 2. The pressure sensor can convert the pressure measured by the pressure gauge into an electrical signal and transmit the electrical signal to the monitoring equipment, facilitating monitoring and control.

[0015] 3. The monitoring equipment can monitor the back pressure between the safety valve and the bursting disc in real time according to the electrical signal transmitted by the pressure sensor, and judge the reliability of the safety valve according to the monitoring results, confirm whether the safety valve is sealed normally, and release the back pressure between the safety valve and the bursting disc through the vent pipe.

[0016] 4. The pressure gauge and pressure sensor are reasonably located, which is convenient for installation and maintenance and improves the convenience of use.

[0017] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of a back pressure monitoring and protection device of a safety valve and a bursting disc connected in series in an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the communication architecture of a back pressure monitoring and protection device for a safety valve and a bursting disc connected in series according to an embodiment of the utility model.

[0021] Among them, 1. Safety valve, 2. Bursting disc, 3. Pressure gauge, 4. Pressure sensor, 5. Pressure vessel, 6. Release pipe, 7. Communication board, 8. Monitoring equipment, 9. Sound and light alarm. DETAILED DESCRIPTION

[0022] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In this embodiment, Figure 1 , 2 As shown, the monitoring and protection device for back pressure of the safety valve and bursting disc in series of the utility model comprises: a safety valve 1, a bursting disc 2, a pressure gauge 3, and a pressure sensor 4. The inlet of the safety valve 1 is used to connect with the pressure vessel 5, the bursting disc 2 is arranged at the outlet of the safety valve 1, the pressure gauge 3 is arranged between the safety valve 1 and the bursting disc 2, and the pressure sensor 4 is arranged at the outlet of the pressure gauge 3. The pressure gauge 3 is used to measure the pressure between the safety valve 1 and the bursting disc 2, and the pressure sensor 4 is used to convert the pressure measured by the pressure gauge 3 into an electrical signal and transmit the electrical signal to the monitoring device 8. The monitoring device 8 can monitor the back pressure between the safety valve 1 and the bursting disc 2 in real time according to the electrical signal transmitted by the pressure sensor 4, monitor the state of the safety valve 1, and perform pressure relief control according to the monitoring result.

[0026] This embodiment further includes a communication board 7, which is connected to the pressure sensor 4. The communication board 7 converts the electrical signal of the pressure sensor 4 into a digital signal and transmits it to the outside, which is convenient for remote monitoring.

[0027] This embodiment also includes an audible and visual alarm 9, and the communication board 7 is connected to the audible and visual alarm 9 by signal. The signal connection includes a wired connection and a wireless connection. The communication board 7 sends the back pressure value of the safety valve 1 monitored by the pressure sensor 4 to the audible and visual alarm 9. If it exceeds the preset value, the audible and visual alarm 9 will send an audible and visual alarm to remind the staff to pay attention.

[0028] This embodiment also includes a monitoring device 8, and the communication board 7 is connected to the monitoring device 8 by signal. The signal connection includes a wired connection and a wireless connection. The data of the back pressure of the safety valve 1 can be displayed in real time on the monitoring device 8, which is convenient for monitoring and regulation. The communication board 7 sends the back pressure value of the safety valve 1 monitored by the pressure sensor 4 to the monitoring device 8. The monitoring device 8 can record the change of the back pressure water time of the safety valve 1. On the one hand, it is convenient to check the historical records for review. On the other hand, when the back pressure exceeds the preset value, the alarm information can also be displayed on the interface of the monitoring device 8.

[0029] Preferably, the communication board 7 is wirelessly connected to the sound and light alarm 9. The communication board 7 is wirelessly connected to the monitoring device 8. The wireless connection method includes but is not limited to WIFI, radio, Bluetooth, local area network, SIM card and other wireless connections.

[0030] By establishing a wireless connection or a wired connection, the sound and light alarm 9 and the monitoring device 8 are arranged in a control room where personnel are on duty in real time, and the staff can remotely monitor the back pressure of the safety valve 1 in real time to ensure the normal operation of the safety valve 1. If the personnel only rely on on-site inspections of the pressure vessel 5, there is a time interval between the two inspections, and the back pressure of the safety valve 1 cannot be known during the time interval, which poses a safety hazard.

[0031] This embodiment further includes a vent pipe 6, which is disposed at the outlet of the safety valve 1, and the vent pipe 6 is connected in parallel with the bursting disc 2. The pressure gauge 3 and the pressure sensor 4 are located between the safety valve 1 and the vent pipe 6. According to the monitoring result of the back pressure, the back pressure between the safety valve 1 and the bursting disc 2 is discharged through the vent pipe 6 to ensure the normal operation of the safety valve 1.

[0032] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A monitoring and protection device for back pressure of a safety valve and a bursting disc in series, characterized in that: include: A safety valve, a bursting disc, a pressure gauge, and a pressure sensor. The inlet of the safety valve is used to be connected to a pressure vessel, the bursting disc is arranged at the outlet of the safety valve, the pressure gauge is arranged between the safety valve and the bursting disc, and the pressure sensor is arranged at the outlet of the pressure gauge.

2. A monitoring and protection device for back pressure of a safety valve and a bursting disc in series according to claim 1, characterized in that: It also includes a communication board card, which is connected to the pressure sensor.

3. A monitoring and protection device for back pressure of a safety valve and a bursting disc in series according to claim 2, characterized in that: It also includes an audible and visual alarm, and the communication board is connected to the audible and visual alarm signal.

4. A monitoring and protection device for back pressure of a safety valve and a bursting disc in series according to claim 3, characterized in that: The communication board is wirelessly connected to the sound and light alarm.

5. The monitoring and protection device for back pressure of a safety valve and a bursting disc in series according to claim 2, characterized in that: It also includes a monitoring device, and the communication board is connected to the monitoring device by signal.

6. A monitoring and protection device for back pressure of a safety valve and a bursting disc in series according to claim 5, characterized in that: The communication board is wirelessly connected to the monitoring device.

7. A monitoring and protection device for back pressure of a safety valve and a bursting disc in series according to any one of claims 1 to 6, characterized in that: It also includes a relief pipe, which is arranged at the outlet of the safety valve, and the relief pipe and the bursting disc are connected in parallel.

8. A monitoring and protection device for back pressure of a safety valve and a bursting disc in series according to claim 7, characterized in that: The pressure gauge and the pressure sensor are located between the safety valve and the relief pipe.

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