CN219978957U - Magnetic induction sensing alarm device suitable for mechanical safety valve - Google Patents

Abstract

The utility model provides a magnetic induction sensing alarm device suitable for a mechanical safety valve, which can timely give an alarm and inform an automatic controller when releasing pressure, wherein a detection end and an induction end are completely separated, so that the explosion-proof capacity of the magnetic induction sensing alarm device is improved; the sensing box is arranged in the detection shell and positioned outside the medium passing path, and a magnetic induction sensing assembly is arranged in the sensing box; the toggle contact detection assembly is arranged on the outer wall of the sensing box, a part of structure is positioned on a medium passing path, and a medium enters the impact toggle contact detection assembly from the pressure release inlet end, so that an alarm is triggered after the toggle contact detection assembly is contacted with the magnetic induction sensing assembly.

Description

Magnetic induction sensing alarm device suitable for mechanical safety valve

Technical Field

The utility model relates to the field of automatic alarming of safety valves, in particular to a magnetic induction sensing alarming device suitable for a mechanical safety valve.

Background

The mechanical safety valve belongs to automatic valves, and has stable and reliable working state in severe environment, so that the mechanical safety valve is widely applied to boilers, pressure vessels and pipelines, and the control pressure does not exceed a specified value, thereby playing an important role in protecting equipment operation.

In the use process of the traditional high-pressure container, when the internal pressure of the pressure container reaches a certain value, the mechanical safety valve can automatically open and release the internal medium to achieve the purpose of releasing the pressure, so that safety accidents such as explosion, leakage and dissipation caused by overload and overpressure of the pressure container are prevented.

However, during practical application, it was found that the following disadvantages exist: when the traditional mechanical safety valve is opened to release pressure in an emergency state, on-duty safety personnel cannot acquire on-site safety valve opening alarm information at the first time, so that the on-site safety valve cannot quickly reach the working state of the on-site regulated high-pressure container, and huge potential safety hazards are generated for safety production.

Disclosure of Invention

The utility model aims to provide a magnetic induction sensing alarm device suitable for a mechanical safety valve, which can give an alarm and inform an automatic controller in time when pressure is released, a detection end and an induction end are completely separated, and the explosion-proof capacity of the magnetic induction sensing alarm device is improved.

Embodiments of the present utility model are implemented as follows:

the magnetic induction sensing alarm device comprises a detection shell, a sensing box and a toggle contact detection assembly, wherein the detection shell is provided with a pressure relief inlet end and a pressure relief outlet end for a mechanical safety valve medium to pass through; the sensing box is arranged in the detection shell and positioned outside the medium passing path, and a magnetic induction sensing assembly is arranged in the sensing box; the toggle contact detection assembly is arranged on the outer wall of the sensing box, a part of structure is positioned on a medium passing path, and a medium enters the impact toggle contact detection assembly from the pressure release inlet end, so that an alarm is triggered after the toggle contact detection assembly is contacted with the magnetic induction sensing assembly.

In a preferred embodiment of the present utility model, the paddle contact detection assembly includes a bracket and a bracket coupling, the bracket being fixedly disposed on an outer wall of the sensor case; the middle part of the bracket coupler is connected with the bracket, and the bracket coupler can deflect at least based on the bracket; one end of the bracket coupler is provided with a flow blocking impact plate, the flow blocking impact plate is positioned on the outgoing path of the medium, the other end of the bracket coupler is provided with a poking plate contact probe, and the poking plate contact probe triggers an alarm after contacting with the magnetic induction sensing assembly.

In a preferred embodiment of the present utility model, the impact side of the spoiler is further provided with a counterweight.

In a preferred embodiment of the present utility model, the magnetic induction sensing assembly includes: the magnetic induction receiver is fixedly arranged on the outer wall of the sensing box, and the position of the magnetic induction receiver is matched with the triggering path of the plectrum contact probe; the signal outgoing port is electrically connected with the signal output end of the magnetic induction receiver; the reset relay is electrically connected with the signal output end of the magnetic induction receiver; the audible and visual alarm is electrically connected with the reset relay.

In a preferred embodiment of the utility model, the signal outgoing port is further provided with an explosion-proof seal.

In a preferred embodiment of the present utility model, the explosion-proof sealing member is composed of a sealing metal gasket, a sealing rubber ring and explosion-proof cement.

In a preferred embodiment of the present utility model, the reset relay includes a reset switch, a first relay, and a second relay, which are sequentially connected.

In a preferred embodiment of the present utility model, the signal output port is externally connected to the automation device control room, and transmits the trigger signal to the automation device control room.

In a preferred embodiment of the present utility model, the pressure relief inlet and outlet are respectively connected with a pressure relief inlet pipe and a pressure relief outlet pipe of the mechanical safety valve in a sealing manner.

The embodiment of the utility model has the beneficial effects that: the magnetic induction sensing alarm device is assembled on the pressure release pipeline of the mechanical safety valve, and the pressure release inlet end and the pressure release outlet end for the medium to pass through are arranged on the detection shell, so that the normal pressure release process is prevented from being influenced; an independent sensing box is further arranged in the detection shell, a magnetic induction sensing assembly is arranged in the detection shell, and the sensing element is protected and the explosion-proof performance is improved; the automatic safety valve is characterized in that a toggle contact detection component is arranged on the outer wall of the sensing box and is positioned on a medium passing path, when a medium enters the impact toggle contact detection component from a pressure relief inlet end, an alarm is triggered after the toggle contact detection component is contacted with the magnetic induction sensing component, under the condition that the mechanical safety valve works to release the pressure of the medium inside, alarm information is transmitted to an automatic equipment control room at the first time, an automatic controller can inform an attended safety person to reach the scene according to the alarm information, various parameters of the pressure container are checked, and the safety production is ensured to be stable and orderly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic plan view of a magnetic induction sensing alarm device according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a magnetic induction sensing alarm device according to an embodiment of the present utility model;

FIG. 3 is a diagram of an alarm signal transmission circuit according to an embodiment of the present utility model;

icon: 100-detecting the shell; 200-a sensor cartridge; 300-paddle contact detection assembly; 110-a pressure relief inlet port; 120-a pressure relief outlet port; 001-a pressure relief inlet tube; 002-pressure relief outlet tube; 210-a magnetic induction sensing assembly; 211-a magnetic induction receiver; 212-signal outgoing port; 213-reset relay; 214-an audible and visual alarm; 215-explosion-proof seal; 2131-reset switch; 2132—a first relay; 2133-a second relay; 2141—a mute button; 2142-an alarm; 310-rack; 320-bracket coupling; 321-a choke impingement plate; 322-paddle contact probe; 323-balancing weight.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

First embodiment

The traditional mechanical safety valve work environment is generally severe, the workplace is mostly at medium and high risk, once the mechanical safety valve is in functional failure or after being opened, each parameter of the high-pressure container is still abnormal in operation, and if safety personnel are not in the first time to reach the site for confirmation and stop the equipment operation, the accident disaster can not be estimated.

Aiming at the defect that the traditional mechanical safety valve cannot transmit warning signals after being triggered, the utility model is independently designed and installed, a mechanical safety valve magnetic induction sensing alarm device is utilized to form a signal transmission closed loop, when an audible and visual alarm prompt device sends alarm information, a safety person needs to rush to an operation site to reset and recover a reset relay, and the mechanical safety valve magnetic induction sensing alarm device and relevant working operation parameters of a high-pressure container are checked and confirmed on site, so that the abnormal condition of the operation parameters is found, the relevant operation is stopped immediately, the treatment is reported, and the safety production and the life safety of the personnel are ensured.

Referring to fig. 1 and 2, the present embodiment provides a magnetic induction sensing alarm device suitable for a mechanical safety valve, which includes a detection housing 100, a sensing case 200 disposed in the detection housing 100, and a paddle contact detection assembly 300.

The detection housing 100 is provided with a pressure release inlet end 110 and a pressure release outlet end 120 for a mechanical safety valve medium to pass through, the specific appearance of the detection housing 100 is not limited, the pressure release inlet pipe 001 and the pressure release outlet pipe 002 can be in sealing connection, and the space containing of the sensing box 200 and the toggle contact detection assembly 300 can be realized. Specifically, the detection housing 100 in this embodiment is a totally enclosed rectangular aluminum magnetic induction detection box.

The sensing box 200 is arranged in the detection shell 100 and is positioned outside the medium passing path, the magnetic induction sensing assembly 210 is arranged in the sensing box 200, the sensing box 200 is used for completely isolating the magnetic induction sensing assembly 210 from the toggle contact detection assembly 300, and the sensing box 200 is sealed and explosion-proof, so that the safety of internal elements is ensured.

More specifically, magnetic induction sensing assembly 210 includes: the magnetic induction receiver 211, the signal outgoing port 212, the reset relay 213 and the audible and visual alarm 214 are arranged on the outer wall of the sensing box 200, and the position of the magnetic induction receiver 211 is matched with the trigger path of the plectrum contact probe; the signal outgoing port 212 is electrically connected with the signal output end of the magnetic induction receiver 211; the reset relay 213 is electrically connected with the signal output end of the magnetic induction receiver 211; the audible and visual alarm 214 is electrically connected to the reset relay 213. The reset relay 213 includes a reset switch 2131, a first relay 2132 and a second relay 2133 which are sequentially connected, and the audible and visual alarm 214 includes a silencing button 2141 and an alarm 2142 which are sequentially connected, and the specific connection is shown in fig. 3.

The principle of operation of magnetic induction sensing assembly 210 is as follows: when the toggle contact detection assembly 300 touches the magnetic induction receiver 211, the magnetic induction receiver 211 sends out an alarm electric signal to send out an audible and visual alarm, and meanwhile, an alarm signal is triggered and transmitted to the control room through a transmission signal line, so that the alarm signal can be transmitted to the control room of the automatic equipment at the first time, an automatic controller can inform the on-duty security personnel to reach the scene according to the alarm information, various parameters of the pressure container are checked, and the safe production is ensured to be stable and orderly.

The signal outgoing port 212 of this embodiment is further provided with an explosion-proof sealing element 215, where the explosion-proof sealing element 215 is a combination of a sealing metal gasket, a sealing rubber ring and an explosion-proof cement/water-soluble sealing filler, so as to ensure the airtight independence of the space, achieve a certain explosion-proof effect, and can be applied to severe production environments such as dangerous chemicals and high pressure.

The toggle contact detection assembly 300 is disposed on the outer wall of the sensor box 200, and part of the structure is located on the medium passing path, and the medium enters the impact toggle contact detection assembly 300 from the pressure release inlet end 110, so that the toggle contact detection assembly 300 contacts with the magnetic induction sensor assembly 210 to trigger an alarm.

More specifically, the paddle contact detection assembly 300 includes a bracket 310 and a bracket coupler 320, the bracket 310 being fixedly disposed on the outer wall of the sensor cartridge 200; the middle part of the bracket coupler 320 is connected with the bracket 310, and the bracket coupler 320 can deflect at least based on the bracket 310 and trigger a signal through displacement; one end of the bracket coupler 320 is provided with a flow blocking impact plate 321, the flow blocking impact plate 321 is positioned on the outgoing path of the medium, the other end of the bracket coupler 320 is provided with a plectrum contact probe 322, and an alarm is triggered after the plectrum contact probe 322 is contacted with the magnetic induction sensing assembly 210. In order to keep the stress balance in the standby state and prevent the gas sensor from being damaged due to excessive punching under the impact of high-pressure liquid flow, the impact side of the flow blocking impact plate 321 is also provided with a balancing weight 323.

The operating principle of the paddle contact detection assembly 300 is as follows: the pressure relief inlet is connected with an outlet valve end of the mechanical safety valve, and when the mechanical safety valve is subjected to pressure relief, high-pressure liquid flow is ejected out and directly impacted onto the flow blocking impact plate 321/balancing weight 323 along the pressure relief inlet; when the high-pressure liquid flow is released, the high-pressure liquid flow directly acts on the flow blocking impact plate 321 to enable the flow blocking impact plate to move, and the poking contact probe 322 swings forwards to touch the magnetic induction receiver 211 through the bracket coupler 320.

According to the mechanical safety valve magnetic induction sensing alarm device, on the basis of not changing the working principle of a traditional mechanical safety valve, the working state of the traditional mechanical safety valve is not affected by adding a set of independent magnetic induction sensing alarm device at the outlet end of the safety valve, the normal function of the safety valve for releasing a high-pressure container is ensured, and when the safety valve is opened due to overhigh internal pressure of the high-pressure container, the magnetic induction sensor is triggered to send an alarm signal, so that jump starting information of the safety valve is transmitted to an automation equipment control room.

In summary, the magnetic induction sensing alarm device is assembled on the pressure release pipeline of the mechanical safety valve, and the pressure release inlet end 110 and the pressure release outlet end 120 for the medium to pass through are arranged on the detection housing 100, so that the normal pressure release process is prevented from being influenced; a separate sensing box 200 is further arranged in the detection shell 100, a magnetic induction sensing assembly 210 is arranged in the detection shell, and the anti-explosion performance is improved while the sensing element is protected; the sensor box 200 is provided with the toggle contact detection assembly 300 on the outer wall, the toggle contact detection assembly 300 is positioned on a medium passing path, when a medium enters the impact toggle contact detection assembly 300 from the pressure release inlet end 110, the toggle contact detection assembly 300 is enabled to trigger an alarm after being contacted with the magnetic induction sensor assembly 210, under the condition that the mechanical safety valve works to release the pressure of the medium inside, the alarm information is transmitted to the control room of the automatic equipment at the first time, an automatic controller can inform the attended safety personnel to reach the scene according to the alarm information, the parameters of the pressure container are checked, and the safe production is ensured to be stable and orderly.

This description describes examples of embodiments of the utility model and is not intended to illustrate and describe all possible forms of the utility model. It should be understood that the embodiments in the specification may be embodied in many alternate forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present utility model. Those skilled in the art will appreciate that a plurality of features illustrated and described with reference to any one drawing may be combined with features illustrated in one or more other drawings to form embodiments not explicitly illustrated or described. The illustrated combination of features provides representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachings of the present utility model may be used in particular applications or implementations as desired.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. A magnetic induction sensing alarm device suitable for a mechanical safety valve, the magnetic induction sensing alarm device comprising:

the detection shell is provided with a pressure relief inlet end and a pressure relief outlet end for a mechanical safety valve medium to pass through;

the sensing box is arranged in the detection shell and is positioned outside the medium passing path, and a magnetic induction sensing assembly is arranged in the sensing box;

the toggle contact detection assembly is arranged on the outer wall of the sensing box, a part of structure is positioned on the medium passing path, and the medium enters and impacts the toggle contact detection assembly from the pressure release inlet end, so that the toggle contact detection assembly is contacted with the magnetic induction sensing assembly to trigger an alarm.

2. The magnetic induction sensing alarm device for mechanical safety valves of claim 1, wherein the paddle contact detection assembly comprises:

the bracket is fixedly arranged on the outer wall of the sensing box;

the middle part of the bracket coupler is connected with the bracket, and the bracket coupler can deflect at least based on the bracket; one end of the support coupler is provided with a flow blocking impact plate, the flow blocking impact plate is positioned on the outgoing path of the medium, the other end of the support coupler is provided with a poking plate contact probe, and the poking plate contact probe triggers an alarm after contacting with the magnetic induction sensing assembly.

3. The magnetic induction sensing alarm device for mechanical safety valves of claim 2, wherein the impact side of the choke impact plate is further provided with a weight.

4. The magnetic induction sensing alarm device adapted for use with a mechanical safety valve of claim 2, wherein the magnetic induction sensing assembly comprises:

the magnetic induction receiver is fixedly arranged on the outer wall of the sensing box, and the position of the magnetic induction receiver is matched with the triggering path of the poking sheet contact probe;

the signal outgoing port is electrically connected with the signal output end of the magnetic induction receiver;

the reset relay is electrically connected with the signal output end of the magnetic induction receiver;

and the audible and visual alarm is electrically connected with the reset relay.

5. The magnetic induction sensing alarm device for mechanical safety valves of claim 4, wherein the signal outgoing port is further provided with an explosion-proof seal.

6. The magnetic induction sensing alarm device for mechanical safety valves of claim 5, wherein the explosion-proof seal consists of a sealing metal gasket, a sealing rubber ring and explosion-proof cement.

7. The magnetic induction sensing alarm device for mechanical safety valves of claim 4, wherein the reset relay comprises a reset switch, a first relay and a second relay connected in sequence.

8. The magnetic induction sensing alarm device for mechanical safety valves of claim 4, wherein the signal outgoing port is externally connected to an automation device control room, and transmits a trigger signal to the automation device control room.

9. The magnetic induction sensing alarm device suitable for the mechanical safety valve according to claim 1, wherein the pressure relief inlet end and the pressure relief outlet end are respectively in sealing connection with a pressure relief inlet pipe and a pressure relief outlet pipe of the mechanical safety valve.