CN213332708U

CN213332708U - Safety valve with alarm device

Info

Publication number: CN213332708U
Application number: CN202021921083.5U
Authority: CN
Inventors: 杨天赐; 曾志恒
Original assignee: Sichuan Jinda Qian Machinery Manufacturing Co ltd
Current assignee: Sichuan Jinda Qian Machinery Manufacturing Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-06-01
Anticipated expiration: 2030-09-04

Abstract

The utility model relates to the field of safety valves, and discloses a safety valve with an alarm device, which comprises a valve body and an alarm device, wherein the valve body comprises a valve body and a valve cover, the valve body and an inner cavity of the valve cover jointly form a valve cavity, and a valve core for controlling the opening and closing of the valve is arranged in the valve cavity; the alarm device is fixedly connected with an exhaust port arranged on the valve body, and the alarm device can sound under the action of air flow. The utility model provides a current carry, store the relief valve of its installation of gaseous medium's equipment, container or pipeline not possess warning prompt facility, cause the problem that the staff can not in time discover the relief valve and open.

Description

Safety valve with alarm device

Technical Field

The utility model relates to a relief valve field specifically indicates a relief valve with alarm device.

Background

Safety valves, as an automatic valve, are typically installed in pressurized equipment, containers or piping installed in a fluid system as an overpressure protection device. When the pressure in the equipment, the container or the pipeline rises to exceed the allowable value, the valve is automatically opened to discharge the medium so as to reduce the pressure in the equipment, the container or the pipeline, and therefore the safe operation of the equipment, the container or the pipeline is protected.

However, when the internal pressure of the device, container or pipeline for conveying and storing the gas medium is too high, the safety valve opens to discharge gas outwards, and the gas medium is mostly colorless or even tasteless compared with the liquid medium. At this moment, the worker may not find in time that the safety valve is opened due to the excessive pressure of the equipment, the container or the pipeline, and thus cannot take necessary pressure reduction measures in time, so that the equipment, the container or the pipeline is damaged due to the continuous excessive pressure, and the production safety is damaged.

SUMMERY OF THE UTILITY MODEL

Based on above technical problem, the utility model provides a relief valve with alarm device has solved the relief valve of current equipment, container or its installation of carrying, storage gas medium and has not possessed warning prompt facility, causes the problem that the staff can not in time discover the relief valve and open.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

a safety valve with an alarm device comprises a valve body and the alarm device, wherein the valve body comprises a valve body and a valve cover, the inner cavities of the valve body and the valve cover jointly form a valve cavity, and a valve core for controlling the valve to open and close is arranged in the valve cavity; the alarm device is fixedly connected with an exhaust port arranged on the valve body, and the alarm device can sound under the action of air flow.

As a preferred mode, the alarm device comprises an outer cylinder and an inner cylinder, wherein the outer cylinder is fixedly connected with an exhaust port arranged on the valve body; the inner cylinder is arranged in the inner cavity of the outer cylinder; the inner barrel is provided with a resonance plate, the resonance plate is provided with a strip-shaped hole, the strip-shaped hole is provided with a reed, and one end of the reed is fixed on the resonance plate.

As a preferable mode, a plurality of strip-shaped holes are formed in the sounding board, and the strip-shaped holes are distributed around the center of the sounding board at equal intervals.

Preferably, the reed is fixedly connected with the resonance plate through a screw.

Preferably, a through hole is formed at the center of the resonator plate.

Preferably, the resonator plate is fixedly mounted to the inner cylinder by means of screws.

As a preferred mode, the valve core comprises an adjusting screw rod, a spring, a valve rod and a valve clack, and the adjusting screw rod is in threaded connection with a threaded through hole at the upper end of the valve cover; the spring is sleeved on the valve rod positioned in the inner cavity of the valve cover, the upper end of the spring is fixedly connected with the first spring seat, and the lower end of the spring is fixedly connected with the second spring seat; the first spring seat is fixedly connected with the adjusting screw rod, and the second spring seat is fixedly connected with the valve rod; the upper end of the valve rod passes through the first spring seat and is arranged in a movable hole arranged on the adjusting screw rod; the valve clack is fixedly connected with the lower end of the valve rod.

As a preferred mode, the lower end of the valve body is provided with a valve seat, and the valve seat is provided with a vertically through air inlet hole; the valve clack can be connected with the air inlet hole in a sealing mode.

As a preferred mode, the valve clack is sleeved with a guide sleeve, and the guide sleeve is fixedly arranged in the valve cavity through the clamping action of the valve body and the valve cover.

Preferably, the top end of the valve cover is provided with a protective cover through threaded connection.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an install alarm device additional on the gas vent of the valve body of relief valve, when carrying, storing gaseous medium's equipment, container or pipeline internal pressure great relief valve open outside exhaust gas, the gaseous medium of emission can flow through alarm device and make alarm device sound production to remind the staff's relief valve to open through sound alarm function. At the moment, the equipment, the container or the pipeline is in a high-pressure state, and workers can take necessary pressure reduction measures to avoid damage to the equipment, the container or the pipeline due to continuous overlarge pressure and harm to production safety.

Drawings

The present application will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the alarm device.

Fig. 3 is a schematic view of the structure of the resonator plate and the reed assembly.

Fig. 4 is a schematic view of a resonator plate structure.

The device comprises a protective cover 1, an adjusting screw rod 2, a first spring seat 3, a spring 4, a valve cover 5, a second spring seat 6, an exhaust port 7, an alarm device 8, an outer cylinder 801, an inner cylinder 802, a resonance plate 803, an annular mounting seat 804, a through hole 805, a reed 806, a strip-shaped hole 807, a valve seat 9, an air inlet 10, a valve body 11, a valve clack 12, a guide sleeve 13 and a valve rod 14.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Fig. 1 to 4 are schematic structural views of a safety valve with an alarm device according to some embodiments of the present application, and the safety valve with an alarm device according to the present application will be described below with reference to fig. 1 to 4. It should be noted that fig. 1-4 are intended to be exemplary only and are not intended to be limiting as to the specific shape and configuration of the safety valve with alarm device.

Referring to fig. 1 to 4, in the present embodiment, the safety valve with an alarm device includes a valve body and an alarm device 8, the valve body includes a valve body 11 and a valve cover 5, an inner cavity of the valve body 11 and an inner cavity of the valve cover 5 together form a valve cavity, and a valve core for controlling the valve to open and close is disposed in the valve cavity; the alarm device 8 is fixedly connected with an exhaust port 7 arranged on the valve body 11, and the alarm device 8 can sound under the action of air flow.

In the embodiment, the alarm device 8 is additionally arranged on the exhaust port 7 of the valve body 11 of the safety valve, so that when the safety valve opens to discharge gas outwards due to the fact that the internal pressure of equipment, a container or a pipeline for conveying and storing gas media is too high, the discharged gas media can flow through the alarm device 8 to enable the alarm device 8 to sound, and the safety valve is reminded to be opened by a worker through a sound alarm function. At the moment, the equipment, the container or the pipeline is in a high-pressure state, and workers can take necessary pressure reduction measures to avoid damage to the equipment, the container or the pipeline due to continuous overlarge pressure and harm to production safety.

Specifically, the valve body 11 and the valve cover 5 are fixedly connected by bolts.

In some embodiments, the alarm device 8 comprises an outer cylinder 801 and an inner cylinder 802, wherein the outer cylinder 801 is fixedly connected with the exhaust port 7 arranged on the valve body 11; the inner cylinder 802, the inner cylinder 802 is arranged in the inner cavity of the outer cylinder 801; the inner cylinder 802 is provided with a resonance plate 803, the resonance plate 803 is provided with a strip-shaped hole 807, the strip-shaped hole 807 is provided with a reed 806, and one end of the reed 806 is fixed on the resonance plate 803.

In this embodiment, when the safety valve opens to discharge gas when the pressure inside the device, container or pipeline for transporting and storing the gas medium is too high, the gas flow passes through the gap between the reed 806 and the strip-shaped hole 807 to vibrate the reed 806 on the resonance plate 803, thereby generating a sound, thereby achieving the function of sounding an alarm.

The inner cylinder 802 and the outer cylinder 801 are connected to the exhaust port 7 of the valve body 11 through the outer cylinder 801, thereby facilitating installation. The inner cylinder 802 supports sounding components such as a sounding board 803 and a reed 806, and the sounding components and the inner cylinder 802 together form a sounding structure. On the premise of not influencing the installation, the whole inner cylinder 802 can be taken out from the inner cavity of the outer cylinder 801, so that the sound production structure is convenient to maintain.

Specifically, a raised annular mounting seat 804 is arranged at the front part of the inner wall of the outer cylinder 801, and the front end of the inner cylinder 802 abuts against the annular mounting seat 804 and is arranged in the outer cylinder 801. Because the air flow direction of the safety valve is determined when the safety valve exhausts air, the air flow is exhausted from back to front, and the annular mounting seat 804 can clamp the inner cylinder 802, so that the inner cylinder 802 can be placed in the outer cylinder 801 and cannot be separated from the outer cylinder 801 under the influence of the air flow.

Specifically, flanges are provided at both ends of the outer cylinder 801 and are fixedly connected to the exhaust port 7 of the valve body 11 via the flanges.

Preferably, the resonance plate 803 is provided with a plurality of bar-shaped holes 807, and the bar-shaped holes 807 are distributed around the center of the resonance plate 803 at equal intervals. The sounding structure of the reeds 806 formed by the plurality of strip-shaped holes 807 can increase the sounding volume of the alarm device 8, so that workers can hear whistle alarms more easily.

Preferably, spring 806 is fixedly attached to resonant plate 803 by a screw. Make reed 806 and resonance board 803 form removable structure through screwed connection, conveniently change and maintain reed 806, also can conveniently adjust reed 806 position, angle in order to adjust alarm device 8 sound production tone to this accessible alarm device 8 change sound production tone and distinguish different alarm device 8, make the staff can be according to alarm sound production tone quick judgement where relief valve is in the open condition.

Preferably, a through hole 805 is formed at the center of the resonator plate 803. The remaining gas medium is rapidly discharged by the through hole 805, thereby preventing the gas medium discharge efficiency from being lowered by the alarm device 8.

Preferably, the resonator plate 803 is fixedly mounted to the inner barrel 802 by screws. The resonance plate 803 and the inner barrel 802 are in a detachable structure through screws, and the effect of setting different tone-generating alarm devices 8 can be achieved conveniently by replacing the resonance plate 803 with strip-shaped holes 807 with different sizes and numbers.

In some embodiments, the valve core comprises an adjusting screw rod 2, a spring 4, a valve rod 14 and a valve clack 12, wherein the adjusting screw rod 2 is in threaded connection with a threaded through hole 805 at the upper end of a valve cover 5; the spring 4 is sleeved on the valve rod 14 positioned in the inner cavity of the valve cover 5, the upper end of the spring 4 is fixedly connected with the first spring seat 3, and the lower end of the spring 4 is fixedly connected with the second spring seat 6; the first spring seat 3 is fixedly connected with the adjusting screw rod 2, and the second spring seat 6 is fixedly connected with the valve rod 14; the upper end of the valve rod 14 passes through the first spring seat 3 and is arranged in a movable hole arranged on the adjusting screw rod 2; the valve clack 12 is fixedly connected with the lower end of the valve rod 14.

In the present embodiment, the valve body functions to control opening and closing of the relief valve. The spring 4 gives the second spring seat 6 an initial pressure in an initial state, so that the second spring seat 6 drives the valve rod 14, and the valve rod 14 drives the valve clack 12 to press down to seal and close the valve. When the pressure of the gas medium in the equipment, container or pipeline for conveying and storing the gas medium is greater than the pressure of the spring 4, the valve clack 12 is jacked up, and the valve is opened to discharge the gas medium, so that the purpose of discharging and reducing the pressure of the safety valve is achieved.

The adjusting screw rod 2 is used for adjusting the initial pressure of the spring 4 so as to change the opening pressure of the safety valve. When the adjusting screw 2 is rotated, the adjusting screw 2 drives the first spring seat 3 to move to change the compression deformation of the spring 4, so as to adjust the initial pressure of the spring 4. In order to meet the movement requirement of the valve rod 14 when the safety valve is opened while the opening pressure of the safety valve can be adjusted, the adjusting screw 2 is also provided with a movable hole for movably placing the valve rod 14, so that the interference of the movement between the adjusting screw 2 and the valve rod 14 is avoided.

In addition, the movable hole of the adjusting screw rod 2 can also guide the valve rod 14, thereby ensuring that the valve rod 14 can move in the vertical direction.

Preferably, the lower end of the valve body 11 is provided with a valve seat 9, and the valve seat 9 is provided with a vertically through air inlet hole 10; the valve flap 12 can be sealingly connected to the inlet orifice 10.

An air inlet hole 10 is arranged in the valve seat 9 and extends into the inner cavity of the valve body 11, and the upper end structure of the air inlet hole 10 is arranged in a protruding mode, so that the air inlet hole 10 and the valve clack 12 are convenient to match and seal.

Specifically, the valve seat 9 is connected with the valve body 11 through threads.

Preferably, the valve flap 12 is sleeved with a guide sleeve 13, and the guide sleeve 13 is fixedly arranged in the valve cavity through the clamping action of the valve body 11 and the valve cover 5. The guide sleeve 13 can guide the valve clack 12, so that the valve clack 12 can move in the vertical direction without deviation, and the sealing matching position of the valve clack 12 and the air inlet hole 10 can be always accurate.

Specifically, in order to enhance the sealing performance of the valve flap 12, the structure of the valve flap 12 of the conventional safety valve includes a guide post, a recoil disc and a sealing gasket. The guide post is arranged in the guide sleeve 13, the sealing gasket is used for sealing the air inlet hole 10, and the area of the backflushing disc is larger than that of the air inlet hole 10 and used for increasing the contact surface with the air flow and receiving the impact force of the air flow.

Preferably, the top end of the valve cover 5 is provided with the protective cover 1 through a threaded connection. The protective cover 1 is used for shielding and protecting the adjusting screw rod 2, so that the problem that the adjusting screw rod 2 is corroded and damaged due to factors such as rain in the natural environment is solved.

The embodiment of the present invention is the above. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly showing the verification process of the utility model, and are not used to limit the patent protection scope of the utility model, the patent protection scope of the utility model is still subject to the claims, all the equivalent structural changes made by using the contents of the specification and the drawings of the utility model are included in the protection scope of the utility model.

Claims

1. A safety valve with an alarm device, comprising:

the valve comprises a valve body, wherein the valve body comprises a valve body (11) and a valve cover (5), the inner cavities of the valve body (11) and the valve cover (5) jointly form a valve cavity, and a valve core for controlling the valve to open and close is arranged in the valve cavity;

the alarming device (8) is fixedly connected with an exhaust port (7) formed in the valve body (11), and the alarming device (8) can sound under the action of air flow.

2. Safety valve with alarm device according to claim 1, characterized in that said alarm device (8) comprises:

the outer cylinder (801), the outer cylinder (801) is fixedly connected with an exhaust port (7) arranged on the valve body (11);

the inner cylinder (802), the inner cylinder (802) is arranged in the inner cavity of the outer cylinder (801); be equipped with resonance board (803) on inner tube (802), seted up bar hole (807) on resonance board (803), be equipped with reed (806) on bar hole (807), reed (806) one end is fixed on resonance board (803).

3. The safety valve with an alarm device according to claim 2, wherein:

a plurality of strip-shaped holes (807) are formed in the resonance plate (803), and the strip-shaped holes (807) are distributed around the circle center of the resonance plate (803) at equal intervals.

4. The safety valve with an alarm device according to claim 2, wherein:

the reed (806) is fixedly connected with the resonance plate (803) through a screw.

5. The safety valve with an alarm device according to claim 2, wherein:

the center of the resonance plate (803) is provided with a through hole (805).

6. The safety valve with an alarm device according to claim 2, wherein:

the resonance plate (803) is fixedly mounted with the inner cylinder (802) through screws.

7. The safety valve with an alarm device according to claim 1, wherein the spool includes:

the adjusting screw rod (2), the adjusting screw rod (2) is in threaded connection with the threaded through hole (805) at the upper end of the valve cover (5);

the spring (4) is sleeved on the valve rod (14) in the inner cavity of the valve cover (5), the upper end of the spring (4) is fixedly connected with the first spring seat (3), and the lower end of the spring (4) is fixedly connected with the second spring seat (6); the first spring seat (3) is fixedly connected with the adjusting screw rod (2), and the second spring seat (6) is fixedly connected with the valve rod (14);

the upper end of the valve rod (14) penetrates through the first spring seat (3) and is arranged in a movable hole formed in the adjusting screw rod (2);

the valve clack (12), valve clack (12) and valve rod (14) lower extreme fixed connection.

8. The safety valve with an alarm device according to claim 7, wherein:

the valve is characterized in that a valve seat (9) is arranged at the lower end of the valve body (11), a vertically through air inlet hole (10) is formed in the valve seat (9), and the valve clack (12) can be connected with the air inlet hole (10) in a sealing mode.

9. The safety valve with an alarm device according to claim 7, wherein:

the valve flap (12) is sleeved with a guide sleeve (13), and the guide sleeve (13) is fixedly arranged in the valve cavity under the clamping action of the valve body (11) and the valve cover (5).

10. The safety valve with an alarm device according to claim 7, wherein:

the top end of the valve cover (5) is provided with a protective cover (1) through threaded connection.