CN220957084U - Indicator for valve state display - Google Patents

Abstract

The application relates to an indicator for displaying valve state, which comprises a valve rod, wherein the valve rod is connected with a valve clack; the connecting piece is communicated with the valve body, and the valve rod penetrates through the connecting piece; the plurality of the inductors are arranged and are detachably connected to the valve body, and the plurality of the inductors are distributed along the length direction of the valve rod; the first magnet is connected to the valve rod, and the in-process that the valve rod goes up and down, the first magnet can pass through every inductor in proper order to make the inductor react. The first magnet and the second magnet are both positioned in the cavity of the valve body; the digital displacement sensor is connected to one end of the valve body, which is far away from the valve clack, and can feed back the movement path of the second magnet. The application has the effect of flexibly detecting the opening and closing degree of the valve in a high-temperature and high-pressure environment.

Description

Indicator for valve state display

Technical Field

The present application relates to the field of valve status indicators, and more particularly to an indicator for valve status display.

Background

The safety valve is a special valve which is in a normally closed state under the action of external force and prevents the medium pressure in the pipeline or the equipment from exceeding a specified value by discharging the medium to the outside of the system when the medium pressure in the equipment or the pipeline rises to exceed the specified value. The safety valve belongs to the automatic valve class, is mainly used on boilers, pressure vessels and pipelines, and in the application scene, the internal environment of a valve body of the safety valve is in a high-temperature (300-500 ℃) and high-pressure (PN 10.0-80.0 Mpa) state due to the existence of boiler steam and pipeline pressure. When the pressure or temperature in the equipment or the pipeline exceeds the set pressure of the safety valve, the valve clack of the safety valve is required to be opened to release or cool, the medium pressure (temperature) in the equipment and the pipeline is ensured to be under the set pressure (temperature), the equipment and the pipeline are protected from normal operation, accidents are prevented from happening, and loss is reduced, so that the opening and closing degree of the valve clack is also required to be controlled manually sometimes to perform proper pressure release or cooling.

In the related art, in a high-temperature and high-pressure environment inside a safety valve body, for detecting the opening and closing degree of a valve clack, the valve is generally modified in a mode of marking scales and setting a visible window of the valve, or the valve body is disassembled and combined with a valve position meter for assembly.

Aiming at the related technology, the scale marking mode has low cost, but is easy to cause scale abrasion phenomenon due to erosion of external matters in the subsequent use process, thereby influencing the measurement accuracy; the valve position of the valve body corresponding to the valve rod is externally provided with the valve position meter, the valve position meter is complex in structure, complex in assembly and high in cost, when the valve rod is corroded, the valve rod and the valve position meter are easy to break to cause measurement errors, and meanwhile, the scale marking and the valve position meter setting cannot be realized under the condition that the valve is completely closed; for the mode of setting up the visual window of valve, its process of reforming transform is comparatively loaded down with trivial details inconvenient, exists the connecting portion of easy split between visual window and the valve body simultaneously, in the valve body internal environment of high temperature high pressure, the security of visual window is lower, and the reliability is relatively poor.

Disclosure of utility model

In order to flexibly detect the opening and closing degree of a valve in a high-temperature and high-pressure environment, the application provides an indicator for displaying the state of the valve.

The application provides an indicator for displaying valve states, which adopts the following technical scheme:

An indicator for valve status display, comprising:

The valve rod is connected to the valve clack;

the connecting piece is communicated with the valve body, and the valve rod penetrates through the connecting piece;

The sensors comprise but are not limited to Hall type sensors, magnetic sensors and the like, a plurality of sensors are arranged, the sensors are detachably connected to the connecting piece, and the sensors are distributed along the length direction of the valve rod;

The first magnet is connected to the valve rod, and in the process of lifting the valve rod, the first magnet can sequentially pass through each sensor and enable the sensors to react;

the second magnet is connected to the valve rod, the second magnet is arranged at one end, far away from the valve clack, of the first magnet, the first magnet and the second magnet are both positioned in a cavity of the connecting piece, and materials of the first magnet and the second magnet comprise but are not limited to high-temperature resistant materials such as samarium cobalt magnets and alnico magnets;

The digital displacement sensor is connected to one end, far away from the valve clack, of the connecting piece, the second magnet penetrates through the digital displacement sensor, and the digital displacement sensor can feed back the movement path of the second magnet.

Through adopting above-mentioned technical scheme, the in-process that the valve clack was opened, valve rod and first magnet, second magnet go up and down thereupon. The inductors are arranged at the positions of the connecting piece, corresponding to different heights of the valve rod, of the different heights, and react sequentially when the first magnet passes through, so that the opening and closing degrees of the valve clacks can be visually indicated, the inductors are detachably connected to the connecting piece, the height of the inductors is adjustable, and therefore, the inductors can be debugged on site according to the specific opening and closing angle control requirements of the valve clacks in the use process.

In the lifting process of the valve rod, the second magnet is lifted along with the valve rod at the same time, and the digital displacement sensor can accurately feed back the movement path of the second magnet. The second magnet and the digital displacement sensor are suitable for scenes in which the opening degree of the valve needs to be accurately controlled; in addition, the second magnet is mutually matched with the digital displacement sensor, so that the installation height of the inductor can be accurately adjusted by staff.

In the design, the first magnet and the second magnet are both made of high-temperature resistant materials, and the device can still be normally used in high-temperature (300-500 ℃) and high-pressure (PN 10.0-80.0 Mpa) scenes such as boilers, pressure vessels and pipelines. The inductor is arranged on the outer side of the valve body and is far away from the cavity of the valve body, and the adverse effect of the high-temperature and high-pressure external environment on the operation of the inductor is small. Meanwhile, the first magnet and the sensor, the second magnet and the digital displacement sensor are all inductively triggered, and compared with the traditional contact triggering mode, the method has lower breaking touch probability.

Optionally, every the equal rigid coupling of inductor has the U type to detain, the U type detains can the joint in connecting piece lateral wall, every the equal threaded connection of U type detains has the bolt, the bolt perpendicular to U type detains the symmetry axis setting.

Through adopting above-mentioned technical scheme, when installing the inductor in the connecting piece, with the U type lock joint that the inductor corresponds in the connecting piece, twist the bolt and make its inseparable butt in the connecting piece, accomplish the fixed mounting between inductor and the connecting piece, this mounting means is applicable to the accurate position control of inductor.

Optionally, the connecting piece corresponds every inductor department has all seted up the adjustment tank, every inductor all fixedly connected with regulating block, the regulating block can closely peg graft in corresponding in the adjustment tank cell body.

Through adopting above-mentioned technical scheme, when installing the inductor in the connecting piece, closely peg graft the regulating block that corresponds the inductor in the regulating tank cell body that corresponds, this mounting means is more swift, and the person of facilitating the use simultaneously fixes a position the installation height of inductor fast.

Optionally, the method comprises the following steps:

The connecting plate is detachably connected to the valve body and provided with a connecting through groove which is parallel to the valve rod;

The threaded rod is arranged in one-to-one correspondence with the inductors, the threaded rod is fixedly connected to the corresponding inductors, the threaded rod can penetrate through the connecting through groove, one end of the threaded rod, which is far away from the corresponding inductor, is in threaded connection with the nut, and when the threaded rod penetrates through the connecting through groove, the corresponding inductor and the nut can jointly clamp the connecting plate.

Through adopting above-mentioned technical scheme, when installing the inductor in the connecting plate, make the threaded rod wear to locate the cell body that connects the draw-in groove perpendicularly, screw on the one end that the corresponding inductor was kept away from to the threaded rod for nut and inductor clamp the connecting plate jointly, above-mentioned mounting means is applicable to the accurate position adjustment of inductor, and the connecting plate can be dismantled simultaneously and be connected in the valve body, and it does not reform transform valve body itself, and the repacking cost is lower.

Optionally, the first magnet and/or the second magnet are/is screwed to the valve rod along the height direction of the valve rod.

Through adopting above-mentioned technical scheme, the user can be through twisting first magnet or second magnet, adjusts the position height of first magnet or second magnet, makes it can more accurately respond to with inductor or digital sensor, promotes the response precision.

Optionally, a plurality of mounting grooves have been seted up along self length direction to the valve rod, first magnet with the installation logical groove has all been seted up to the second magnet, the installation logical groove can communicate in arbitrary the mounting groove, first magnet with the installation piece has all been inserted to the second magnet, installation piece both ends terminal surface all is greater than the mounting groove or the cross section setting of installation logical groove, the installation piece can the joint in the cell body of mounting groove, the installation piece includes but is not limited to high temperature resistant elastic rubber material such as fluororubber.

Through adopting above-mentioned technical scheme, if need adjust the position height of first magnet or second magnet, make the installation that first magnet or second magnet correspond lead to the groove and be linked together with the valve rod corresponding high mounting groove, insert the installation piece mounting groove with the cell body of installation through groove, because the installation piece both ends all are greater than the mounting groove or the cross section of installation through groove, consequently the installation piece can be fixed first magnet or second magnet and valve rod in the joint in the mounting groove cell body.

Optionally, the rock wool cushion coats the outer side wall of the sensor and/or the digital displacement sensor.

Through adopting above-mentioned technical scheme, rock wool bed course can be for the isolated heat of inductor or digital displacement sensor, does not cause the interference to the magnetic field, makes it can normally high-efficient operation in the environment of high temperature high pressure.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The design of the first magnet, the second magnet, the sensor and the digital displacement sensor realizes flexible measurement of the opening and closing degree of the valve, and the first magnet and the second magnet are positioned in the cavity of the valve rod, so that the valve is suitable for use in high-temperature and high-pressure environments;

2. the height-adjustable design of the sensor can be suitable for measuring a plurality of positions of valve opening;

3. The design of the first magnet and the second magnet with respect to the valve rod with adjustable height enables the first magnet and the second magnet to more accurately realize the precision induction debugging between the first magnet and the sensor or the digital displacement sensor.

Drawings

FIG. 1 is a schematic overall construction of a protruding U-shaped member of an indicator for valve status display according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a protruding U-shaped member of an indicator for valve status display according to an embodiment of the present application;

FIG. 3 is a schematic view of a protruding adjustment slot of an indicator for valve status display according to an embodiment of the present application;

FIG. 4 is a cross-sectional view of a protruding adjustment slot of an indicator for valve status display according to an embodiment of the present application;

FIG. 5 is a schematic view of the structure of a protruding web of an indicator for valve status display according to an embodiment of the present application;

FIG. 6 is a cross-sectional view of the structure of a protruding web of an indicator for valve status display according to an embodiment of the present application;

FIG. 7 is a schematic view of the construction of a protruding mounting block of an indicator for valve status display according to an embodiment of the present application;

FIG. 8 is a structural cross-sectional view of a protruding mounting block of an indicator for valve status display according to an embodiment of the present application;

Fig. 9 is an enlarged view of a portion a in fig. 8.

Reference numerals illustrate: 1. a valve stem; 2. a mounting groove; 21. a mounting block; 3. a first magnet; 31. a second magnet; 32. installing a through groove; 4. an inductor; 41. a digital displacement sensor; 5. a U-shaped buckle; 51. a bolt; 6. an adjustment tank; 61. an adjusting block; 62. a rubber layer; 7. a connecting plate; 71. connecting the through groove; 72. a threaded rod; 73. a nut; 8. a rock wool cushion layer; 9. a valve body; 10. and a connecting piece.

Detailed Description

The application is described in further detail below with reference to fig. 1-9.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiment of the application discloses an indicator for displaying valve states. Referring to fig. 1 and 2, an indicator for displaying a valve state includes a valve rod 1, the valve rod 1 is connected to a valve clack, a valve body 9 is connected with a connecting piece 10, the valve rod 1 is penetrated through the connecting piece 10, and the valve rod 9 can be lifted along the height direction along with the opening and closing of the valve clack. The valve body 9 is a valve body of various valves including, but not limited to, a gate valve, a shut-off valve, a pinch valve, and the like. The valve rod 1 is respectively connected with a first magnet 3 and a second magnet 31 at different height positions, the second magnet 31 is arranged corresponding to the first magnet 3 and far away from one end of the valve clack, and the materials of the first magnet 3 and the second magnet 31 comprise but are not limited to high temperature resistant materials such as samarium cobalt magnets, alnico magnets and the like. The connecting piece 10 is detachably connected with two inductors 4 at the position corresponding to the first magnet 3, and the inductors 4 comprise but are not limited to Hall type inductors, magnetosensitive inductors and the like. The inductors 4 are arranged along the length direction of the valve rod 1. During the lifting of the valve rod 1, the first magnet 3 can sequentially pass through the inductors 4 with different heights and react with the inductors. The connecting piece 10 is close to second magnet 31 one end and can dismantle and be connected with digital displacement sensor 41, and digital sensor electricity is connected in host computer and display screen, and valve rod 1 lift in-process, digital displacement sensor 41 can be through the lift journey of display screen real-time feedback second magnet 31. The outer side walls of the sensor 4 and/or the digital displacement sensor 41 are/is coated with rock wool cushion layers 8.

The following effects are achieved: in the opening and closing process of the valve clack, the valve rod 1 is lifted along with the valve clack, and the valve rod 1 drives the first magnet 3 and the second magnet 31 to lift together. In the process that the valve clack is gradually opened, the first magnet 3 sequentially passes through the inductors 4 with different heights and enables the inductors 4 to react, and the inductors 4 with different heights can display different opening and closing states of the valve clack. Also, in the process of opening the valve clack, the digital displacement display feeds back the lifting path of the second magnet 31 in real time, so that the more accurate opening and closing degree of the valve clack can be reflected. The digital displacement display can be detached, so that the digital displacement display can be installed when the installation height of the sensor 4 is debugged or when the opening and closing degree of the valve clack is required to be accurately known, and the data reflected by the digital displacement display are more accurate and visual. In the above design, the first magnet 3 and the second magnet 31 are both located in the cavity of the connecting piece 10, the connecting piece 10 effectively protects the first magnet 3 and the second magnet 31, and the first magnet 3 and the second magnet 31 are made of high temperature resistant materials, so that the valve can be suitable for the working environment of high temperature and high pressure inside the valve body. The inductor is arranged on the outer side of the valve body and is far away from the cavity of the valve body, and the adverse effect of the high-temperature and high-pressure external environment on the operation of the inductor is small. In addition, the sensor 4 and the digital displacement sensor 41 are both triggered by induction, and compared with a contact type triggering mode, the sensitivity of the device is higher, and the device can flexibly measure the opening degree of the valve especially in the boiler pipeline environment containing high-temperature high-pressure steam.

Referring to fig. 1 and 2, as a further example under the present embodiment, one end of each sensor 4 is fixedly connected with a U-shaped buckle 5, and the U-shaped buckle 5 can be clamped to the outer side wall of the connecting piece 10 corresponding to a section of the valve rod 1. Each U-shaped buckle 5 is connected with a bolt 51 in a threaded mode perpendicular to the direction of the symmetry axis of the U-shaped buckle 5, when the U-shaped buckle 5 is clamped to the connecting piece 10, the bolt 51 is screwed, and the bolt 51 and the U-shaped buckle 5 clamp the connecting piece 10 together.

The bolts 51 and the U-shaped buckles 5 can fix the corresponding inductor 4 at any height of the connecting piece 10 corresponding to one section of the valve rod 1, the original connecting piece 10 is not damaged in the installation process, the installation is simple, and the device is suitable for a use scene of accurately regulating and controlling the inductor 4.

Referring to fig. 3 and 4, as a further example of the present embodiment, the connecting member 10 is provided with a plurality of adjusting grooves 6 corresponding to a section of the valve rod 1, and the adjusting grooves 6 are arrayed along the length direction of the valve rod 1. Each inductor 4 is fixedly connected with an adjusting block 61, and the outer side wall of each adjusting block 61 is coated with a rubber layer 62, wherein the rubber layer 62 comprises, but not limited to, high-temperature resistant elastic rubber materials such as fluororubber. The adjusting block 61 and the rubber layer 62 can be tightly inserted into the groove body of any adjusting groove 6.

The mounting height of the inductor 4 is quickly positioned by the regulating tank 6, the rubber layer 62 has elasticity, so that the connection between the regulating block 61 and the tank body of the regulating tank 6 is tighter, meanwhile, the rubber layer 62 is made of high-temperature-resistant elastic rubber, when the valve body 9 is mounted in a high-temperature high-pressure equipment channel, the rubber layer 62 effectively protects the inductor 4 positioned outside the valve body 9, and the inductor 4 can normally work in a high-temperature high-pressure external environment.

Referring to fig. 5 and 6, as a further example under the present embodiment, two fixing nuts are screwed to the valve body 9 near the valve rod 1, and a connection plate 7 is clamped between the valve body 9 and each fixing nut, where the connection plates 7 are disposed in one-to-one correspondence with the sensors 4. Each connection plate 7 is provided with a connection channel 71, the connection channels 71 being arranged parallel to the valve stem 1. Each inductor 4 is fixedly connected with a threaded rod 72, the threaded rods 72 can be vertically inserted into the corresponding connecting through grooves 71, the threaded rods 72 are in threaded connection with nuts 73, and the nuts 73 can be abutted against one side, away from the corresponding inductor 4, of the connecting plate 7.

The fixing nut belongs to the original structure of the valve body 9, and the design of the connecting plate 7 is to refit the valve body 9 and add the inductor 4 on the basis of not damaging the original structure of the valve body 9. The height of the sensor 4 can be accurately adjusted within the length range of the tank body of the connecting through groove 71, and the adjusting process is accurate, simple and fast.

Referring to fig. 2, as a further example under the present embodiment, the ends of the first magnet 3 and the second magnet 31 are both screwed to the valve stem 1, and the first magnet 3, the second magnet 31 and the outer side wall of the valve stem 1 are smoothly transited.

When the mounting heights of the first magnet 3 and the second magnet 31 need to be adjusted to achieve the accurate sensing effect of the sensor 4 and the digital displacement sensor 41, the mounting height can be quickly adjusted by twisting the first magnet 3 or the second magnet 31.

Referring to fig. 7-9, as a further example in this embodiment, a plurality of mounting grooves 2 are formed at positions of the valve rod 1 corresponding to the sensor 4 and the digital displacement sensor 41 corresponding to the valve rod 1, and the mounting grooves 2 are arrayed along the length direction of the valve rod 1. The first magnet 3 and the second magnet 31 are provided with mounting through grooves 32, and the mounting through grooves 32 can be communicated with the groove body of any mounting groove 2. The installation block 21 is inserted in the groove body of each installation through groove 32, the installation block 21 can penetrate through the groove bodies of the installation grooves 2 and the installation through grooves 32, the two ends of the installation block 21 are larger than the cross sections of the groove bodies of the installation grooves 2 and the installation through grooves 32, the end parts of the installation block 21 can be clamped in the groove bodies of the installation grooves 2, and the installation block 21 comprises but is not limited to high-temperature-resistant elastic rubber materials such as fluororubber.

The high temperature resistant material of the mounting block 21 makes it suitable for the service environment of high temperature high pressure, when needing to adjust the installation height of first magnet 3 and second magnet 31, corresponding the installation through groove 32 of first magnet 3 and second magnet 31 respectively in the mounting groove 2 of corresponding height, insert the mounting block 21 and locate the cell body of mounting groove 2 and installation through groove 32, accomplish the altitude mixture control of first magnet 3 and second magnet 31. The design of the installation groove 2 is convenient for a user to quickly position the installation height of the first magnet 3 or the second magnet 31, and the adjustment speed of the user is accelerated.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (7)

1. An indicator for valve status display, comprising:

a valve rod (1), wherein the valve rod (1) is connected to the valve clack;

The connecting piece (10), the connecting piece (10) is communicated with the valve body (9), and the valve rod (1) penetrates through the connecting piece (10);

The sensors (4) comprise, but are not limited to, hall sensors (4), magnetic sensors (4) and the like, a plurality of sensors (4) are arranged, the sensors (4) are detachably connected to the connecting piece (10), and the sensors (4) are distributed along the length direction of the valve rod (1);

The first magnet (3), the first magnet (3) is connected to the valve rod (1), and in the process of lifting and lowering the valve rod (1), the first magnet (3) can sequentially pass through each inductor (4) and enable the inductors (4) to react;

The second magnet (31), the second magnet (31) is connected to the valve rod (1), the second magnet (31) is arranged corresponding to one end of the first magnet (3) far away from the valve clack, the first magnet (3) and the second magnet (31) are both positioned in the cavity of the connecting piece (10), and the materials of the first magnet (3) and the second magnet (31) comprise but are not limited to high temperature resistant materials such as samarium cobalt magnet, alnico magnet and the like;

The digital displacement sensor (41), digital displacement sensor (41) are connected in connecting piece (10) keep away from valve clack one end, second magnet (31) wear to locate digital displacement sensor (41) set up, digital displacement sensor (41) can feed back the motion journey of second magnet (31).

2. An indicator for valve status display according to claim 1, wherein: every inductor (4) all rigid coupling has U type knot (5), U type knot (5) can joint in connecting piece (10) lateral wall, every U type knot (5) all threaded connection has bolt (51), bolt (51) perpendicular to U type knot (5) symmetry axis sets up.

3. An indicator for valve status display according to claim 1, wherein: the connecting piece (10) corresponds every inductor (4) department has all seted up adjustment tank (6), every inductor (4) all fixedly connected with regulating block (61), regulating block (61) can closely peg graft in corresponding in adjustment tank (6) cell body.

4. An indicator for valve status display as claimed in claim 1, comprising:

The connecting plate (7), the connecting plate (7) can be detachably connected to the valve body (9), the connecting plate (7) is provided with a connecting groove (71), and the connecting groove (71) is parallel to the valve rod (1);

Threaded rod (72), threaded rod (72) with inductor (4) one-to-one sets up, threaded rod (72) rigid coupling in correspondence inductor (4), threaded rod (72) can wear to locate link groove (71), threaded rod (72) keep away from correspondence inductor (4) one end threaded connection has nut (73), works as threaded rod (72) wear to locate when link groove (71), inductor (4) that it corresponds with nut (73) can clamp jointly connecting plate (7).

5. An indicator for valve status display according to any one of claims 2-4, wherein: the first magnet (3) and/or the second magnet (31) are/is connected to the valve rod (1) in a threaded manner along the height direction of the valve rod (1).

6. An indicator for valve status display according to any one of claims 2-4, wherein: the valve rod (1) is offered the array along self length direction and is offered a plurality of mounting grooves (2), first magnet (3) with installation logical groove (32) have all been offered to second magnet (31), installation logical groove (32) can communicate in arbitrary mounting groove (2), first magnet (3) with mounting block (21) have all been inserted to second magnet (31), mounting block (21) both ends terminal surface all is greater than mounting groove (2) or the cross section setting of installation logical groove (32), mounting block (21) can the joint in the cell body of mounting groove (2), mounting block (21) include but are not limited to high temperature resistant elastic rubber material such as fluororubber.

7. An indicator for valve status display according to any one of claims 2-4, wherein: and the rock wool cushion layer (8), wherein the rock wool cushion layer (8) is coated on the outer side wall of the sensor (4) and/or the digital displacement sensor (41).