A safety valve action monitoring device based on mechanical triggering

Abstract

This utility model discloses a safety valve operation monitoring device based on mechanical triggering, including a sensing cover plate and a mounting base fixed on the pressure relief port of the safety valve. The sensing cover plate includes a connecting section hinged to the bottom of the mounting base and a closing section disposed on the connecting section. The top of the mounting base is also provided with a suction structure that can be movably connected to the closing section of the sensing cover plate. When the suction structure is connected to the closing section of the sensing cover plate, the closing section of the sensing cover plate completely seals the pressure relief port of the safety valve. This utility model utilizes a mechanical structure to directly respond to the pressure relief airflow with no delay in action. At the same time, the opening and closing state of the sensing cover plate is visible, which allows operators to intuitively monitor the operation status of the safety valve.

Description

Technical Field

[0001] This utility model belongs to the field of safety valve safety monitoring technology, and in particular relates to a safety valve action monitoring device based on mechanical triggering. Background Technology

[0002] Safety valves are valves used to protect system safety. As key safety accessories for special equipment, they automatically open to relieve pressure when there is overpressure. That is, when the pressure of the medium in the equipment or pipeline rises above the specified value, they release the medium to the outside of the system to prevent the pressure of the medium in the pipeline or equipment from exceeding the specified value. Safety valves belong to the category of automatic valves and are commonly used in boilers, pressure vessels and pipelines to control the pressure to not exceed the specified value. They play an important role in protecting personal safety and equipment operation. However, the applicant found that the current safety valve automatically reseats after activation, making it difficult to detect in a timely manner. This results in gas leaks and energy losses not being detected quickly, pressure signal transmission being delayed, and the activation status not being able to be intuitively judged. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the prior art and provide a safety valve action monitoring device based on mechanical triggering. It utilizes a mechanical structure to directly respond to the pressure relief airflow with no action delay. At the same time, the opening and closing state of the sensing cover is visible, which makes it convenient for operators to intuitively monitor the action status of the safety valve.

[0004] The objective of this utility model is achieved through the following technical solution: A safety valve action monitoring device based on mechanical triggering includes a sensing cover plate and a mounting base fixed on the pressure relief port of the safety valve. The sensing cover plate includes a connecting section hinged to the bottom of the mounting base and a closing section disposed on the connecting section. The top of the mounting base is also provided with a suction structure that can be movably connected to the closing section of the sensing cover plate. When the suction structure is connected to the closing section of the sensing cover plate, the closing section of the sensing cover plate completely closes the pressure relief port of the safety valve. In this embodiment, when the suction structure is connected to the closed section of the sensing cover, the closed section of the sensing cover completely seals the pressure relief port of the safety valve. When the safety valve is activated, the pressure of the pressure relief airflow is greater than the suction force between the suction structure and the closed section, thus separating the suction structure from the sensing cover and pushing the connecting section of the sensing cover to rotate along the bottom of the mounting base, causing the sensing cover to hang down to the bottom of the mounting base. In other words, the mechanical structure directly responds to the pressure relief airflow with no delay in action. At the same time, the opening and closing state of the sensing cover changes significantly, making it convenient for operators to intuitively monitor the operating status of the safety valve.

[0005] In one embodiment, a trigger element disposed on the mounting base is further included, the trigger element being electrically connected to a remote alarm terminal; In this embodiment, a trigger element installed on the mounting base is used to monitor the movement status of the sensor cover and transmit the signal to a remote alarm terminal to promptly alert the operator.

[0006] In one embodiment, the trigger is a micro switch, and when the engaging structure is connected to the closed section of the sensing cover, the micro switch abuts against the closed section of the sensing cover. In this embodiment, when the suction structure is connected to the closed section of the sensing cover, the micro switch is triggered and set; when the sensing cover is opened, the micro switch is reset and the action signal is transmitted to the remote alarm terminal.

[0007] In one embodiment, when the suction structure is connected to the closed section of the sensing cover, the trigger and the closed section are on the same surface, and the trigger is a proximity sensor or a displacement sensor.

[0008] In one embodiment, the connecting section of the sensing cover is hinged to the mounting base via a movable hinge.

[0009] In one embodiment, the attraction structure is a magnetic attractor disposed on the top of the mounting base, the magnetic attractor being able to attract each other to the end of the closed section.

[0010] In one embodiment, the suction structure is a slot provided on the top of the mounting base, and the closed section is provided with a buckle corresponding to the slot.

[0011] In one embodiment, the mounting base is bolted to the flange of the safety valve relief port.

[0012] In one embodiment, the surface of the mounting base is provided with an external thread corresponding to the internal thread of the safety valve relief port, so that the mounting base can be threadedly connected to the safety valve relief port.

[0013] In one embodiment, the trigger is connected to the remote alarm terminal via a signal cable.

[0014] The beneficial effects of this utility model are as follows: This invention provides a safety valve operation monitoring device based on mechanical triggering. When the suction structure is connected to the closed section of the sensing cover, the closed section of the sensing cover completely seals the safety valve's pressure relief port. When the safety valve operates, the pressure of the pressure relief airflow is greater than the suction force between the suction structure and the closed section, thus separating the suction structure from the sensing cover and pushing the connecting section of the sensing cover to rotate along the bottom of the mounting base, causing the sensing cover to hang down at the bottom of the mounting base. This utilizes a mechanical structure to directly respond to the pressure relief airflow with no delay in action. At the same time, the opening and closing state of the sensing cover changes significantly, allowing operators to intuitively monitor the safety valve's operation status. Simultaneously, a trigger element transmits a signal to a remote alarm terminal when the sensing cover opens, promptly alerting the operator. The mounting base and the safety valve's pressure relief port are tightly fitted, and if the sensing cover abnormally opens, even minor leaks in the safety valve can be detected simultaneously. Attached Figure Description

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein: Figure 1 A schematic diagram of the structure of this utility model is shown; Figure 2 This diagram shows the structure of the present invention in one state; Figure 3 This shows a structural schematic diagram of the present invention in another state; In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0016] Figure label: 100-Monitoring device, 1-Induction cover, 2-Mounting base, 3-Clamping structure, 4-Micro switch, 5-Moving hinge, 6-Signal cable, 101-Connecting section, 102-Enclosed section. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] This utility model provides a safety valve action monitoring device based on mechanical triggering. The monitoring device 100 is installed on the pressure relief port of the safety valve, such as... Figures 1 to 3 As shown, the device includes a sensor cover plate 1 and a mounting base 2 fixed on the pressure relief port of the safety valve. The sensor cover plate 1 includes a connecting section 101 hinged to the bottom of the mounting base 2 and a closing section 102 provided on the connecting section 101. The top of the mounting base 2 is also provided with a suction structure 3 that can be movably connected to the closing section 102 of the sensor cover plate 1. When the suction structure 3 is connected to the closing section 102 of the sensor cover plate 1, the closing section 102 of the sensor cover plate 1 completely closes the pressure relief port of the safety valve. It should be noted that in this embodiment, when the suction structure 3 is connected to the closed section 102 of the sensing cover plate 1, the closed section 102 of the sensing cover plate 1 completely seals the pressure relief port of the safety valve. When the safety valve is activated, the pressure of the pressure relief airflow is greater than the suction force between the suction structure 3 and the closed section 102, that is, the suction structure 3 is separated from the sensing cover plate 1, and the connecting section 101 of the sensing cover plate 1 is pushed to rotate along the bottom of the mounting base 2, so that the sensing cover plate 1 hangs down at the bottom of the mounting base 2. That is, the mechanical structure directly responds to the pressure relief airflow, and the action is without delay. At the same time, the opening and closing state of the sensing cover plate 1 changes significantly, which makes it convenient for the operator to intuitively monitor the action state of the safety valve.

[0019] Specifically, in this embodiment, the suction structure 3 is a magnetic suction component set on the top of the mounting base 2. The magnetic suction component can be attracted to the end of the closed section 102. The magnetic force of the magnetic suction component can be set according to the actual situation. In this embodiment, the sensing cover 1 can be opened by the impact of the depressurized airflow (≥1KPa). In one embodiment, a trigger element is also included, which is connected to a remote alarm terminal via a signal cable 6. That is, the trigger element on the mounting base 2 is used to monitor the action status of the sensing cover 1 and transmit the signal to the remote alarm terminal to remind the operator in a timely manner. Specifically, in this embodiment, the trigger is a micro switch 4. When the suction structure 3 is connected to the closed section 102 of the sensing cover 1, the micro switch 4 abuts against the closed section 102 of the sensing cover 1. That is, when the suction structure 3 is connected to the closed section 102 of the sensing cover 1, the micro switch 4 is triggered and set. When the sensing cover 1 is opened, the micro switch 4 is reset and transmits the action signal to the remote alarm terminal to remind the operator. In one embodiment, when the suction structure 3 is connected to the closed section 102 of the sensing cover 1, the trigger and the closed section 102 are on the same surface. The trigger is a proximity sensor or a displacement sensor. That is, a proximity sensor or a displacement sensor can also be used as the trigger. When the position of the sensing cover 1 is detected to change, the action signal is transmitted to the remote alarm terminal to remind the operator. In one embodiment, such as Figure 2 and Figure 3 As shown, the connecting section 101 of the sensing cover 1 is hinged to the mounting base 2 via the movable hinge 5. That is, when the safety valve is activated, the pressure of the pressure relief airflow is greater than the attraction force between the suction structure 3 and the closing section 102, which separates the suction structure 3 from the sensing cover 1 and pushes the connecting section 101 of the sensing cover 1 to rotate along the bottom of the mounting base 2, so that the sensing cover 1 hangs down at the bottom of the mounting base 2. The opening and closing state of the sensing cover 1 changes significantly, which makes it convenient for operators to intuitively monitor the operation status of the safety valve. In one embodiment, the suction structure 3 is a slot provided on the top of the mounting base 2, and the closed section 102 is provided with a buckle corresponding to the slot. That is, the sensor cover plate 1 can also be connected by the buckle and the slot engaging with each other. Under the action of the pressure relief airflow from the pressure relief port of the safety valve, the buckle and the slot separate. Alternatively, the sensor cover plate 1 can be connected by adhesive strips or other means, so that it can close the pressure relief port of the safety valve under normal conditions, and open under the action of the pressure relief airflow when the safety valve is activated. In one embodiment, the mounting base 2 is fixed to the flange of the safety valve relief port by bolts; In one embodiment, the surface of the mounting base 2 is provided with an external thread corresponding to the internal thread of the safety valve relief port, so that the mounting base 2 can be threadedly connected to the safety valve relief port. The mounting base 2 is tightly fitted to the pressure relief port of the safety valve. If the sensing cover 1 is abnormally opened, this device can also detect the slight leakage of the safety valve simultaneously. In one embodiment, the working principle of this utility model is as follows: Under normal conditions, the suction structure 3 is connected to the closed section 102 of the sensing cover 1, at which time the closed section 102 of the sensing cover 1 completely seals the pressure relief port of the safety valve. When the safety valve is activated, the pressure of the pressure relief airflow is greater than the suction force between the suction structure 3 and the closed section 102, that is, the pressure relief airflow separates the suction structure 3 from the sensing cover 1 and pushes the connecting section 101 of the sensing cover 1 to rotate along the bottom of the mounting base 2, so that the sensing cover 1 hangs down at the bottom of the mounting base 2. That is, the mechanical structure directly responds to the pressure relief airflow, and the action is without delay. At the same time, the opening and closing state of the sensing cover 1 changes significantly, which makes it convenient for operators to intuitively monitor the action status of the safety valve. At the same time, the set trigger element transmits the signal to the remote alarm terminal when it detects the state change of the sensing cover 1, so as to promptly remind the operator. The mounting base 2 and the pressure relief port of the safety valve are tightly fitted. If the sensing cover 1 is abnormally opened, the minor leakage problem of the safety valve can also be detected simultaneously. In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A safety valve action monitoring device based on mechanical triggering, characterized in that, The device includes a sensor cover and a mounting base fixed to the pressure relief port of a safety valve. The sensor cover includes a connecting section hinged to the bottom of the mounting base and a closing section disposed on the connecting section. The top of the mounting base is also provided with a suction structure that can be movably connected to the closing section of the sensor cover. When the suction structure is connected to the closing section of the sensor cover, the closing section of the sensor cover completely closes the pressure relief port of the safety valve.

2. The safety valve action monitoring device based on mechanical triggering according to claim 1, characterized in that, It also includes a trigger element disposed on the mounting base, the trigger element being electrically connected to a remote alarm terminal.

3. The safety valve action monitoring device based on mechanical triggering according to claim 2, characterized in that, The trigger is a micro switch. When the engaging structure is connected to the closed section of the sensing cover, the micro switch abuts against the closed section of the sensing cover.

4. The safety valve action monitoring device based on mechanical triggering according to claim 2, characterized in that, When the suction structure is connected to the closed section of the sensing cover, the trigger and the closed section are on the same surface, and the trigger is a proximity sensor or a displacement sensor.

5. The safety valve action monitoring device based on mechanical triggering according to claim 1, characterized in that, The connecting section of the sensor cover is hinged to the mounting base via a movable hinge.

6. The safety valve action monitoring device based on mechanical triggering according to claim 1, characterized in that, The attraction structure is a magnetic suction element disposed on the top of the mounting base, which can attract each other to the end of the closed section.

7. The safety valve action monitoring device based on mechanical triggering according to claim 1, characterized in that, The suction structure is a slot provided on the top of the mounting base, and the closed section is provided with a buckle corresponding to the slot.

8. The safety valve action monitoring device based on mechanical triggering according to claim 1, characterized in that, The mounting base is fixed to the flange of the safety valve relief port by bolts.

9. The safety valve action monitoring device based on mechanical triggering according to claim 1, characterized in that, The surface of the mounting base is provided with an external thread corresponding to the internal thread of the safety valve relief port, so that the mounting base can be threadedly connected to the safety valve relief port.

10. A safety valve action monitoring device based on mechanical triggering according to claim 2, characterized in that, The trigger is connected to the remote alarm terminal via a signal cable.

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