CN110701375A

CN110701375A - Butterfly valve capable of monitoring internal temperature and gas leakage

Info

Publication number: CN110701375A
Application number: CN201910879766.4A
Authority: CN
Inventors: 张俭平; 付信杰; 徐长军; 黄士家; 张良; 沈凤文
Original assignee: SEPCO Electric Power Construction Co Ltd
Current assignee: SEPCO Electric Power Construction Co Ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-01-17

Abstract

The invention relates to a butterfly valve capable of monitoring internal temperature and gas leakage, which comprises a shell, wherein main connecting plates are fixedly arranged at openings at two ends of the shell respectively and are used for connecting external pipelines; the temperature sensor is arranged in the shell, a probe of the temperature sensor extends into an inner cavity of the shell, a signal output end of the temperature sensor is positioned outside the shell, an alarm is arranged on the outer surface of the shell, and the temperature sensor is in signal connection with the alarm; the outer side face of at least one main connecting plate is fixedly connected with one end of a ribbon, and the other end of the ribbon is arranged towards the direction far away from the main connecting plate. The invention can solve the problems that the internal temperature of the butterfly valve can not be monitored in real time and can not be alarmed in time when the internal temperature is too high; the gas leakage condition is not easy to be monitored by naked eyes.

Description

Butterfly valve capable of monitoring internal temperature and gas leakage

Technical Field

The invention belongs to the technical field of valve equipment, and particularly relates to a butterfly valve capable of monitoring internal temperature and gas leakage.

Background

The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk.

The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

The inventors have appreciated that the existing butterfly valve has the following drawbacks and disadvantages:

1) the joint of the butterfly valve device is easy to leak gas and the gas leakage condition is not easy to observe;

2) the butterfly valve device cannot monitor the internal temperature in real time;

3) when the internal temperature is too high, the alarm cannot be given, and potential safety hazards exist.

Disclosure of Invention

The invention aims to provide a butterfly valve capable of monitoring internal temperature and gas leakage, which can solve the problems that the internal temperature of the butterfly valve cannot be monitored in real time and alarm cannot be given in time when the internal temperature is too high; the gas leakage condition is not easy to be monitored by naked eyes.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a can monitor inside temperature and gas leakage's butterfly valve, includes the casing, the both ends opening part of casing is fixed respectively and is equipped with the main connecting plate, the main connecting plate is used for connecting external pipeline.

Be equipped with temperature sensor in the casing, temperature sensor's probe stretches into in the inner chamber of casing, temperature sensor's signal output part is located the outside of casing, the surface of casing is equipped with the siren, temperature sensor and siren signal connection.

The outer side face of at least one main connecting plate is fixedly connected with one end of a ribbon, and the other end of the ribbon is arranged towards the direction far away from the main connecting plate.

Further, be equipped with the valve block in the casing, valve block and dwang fixed connection, the one end of dwang sets up in the outside of casing, and the other end passes the lateral wall of casing and stretches into in the inner chamber of casing.

Further, be equipped with the valve circle in the inner chamber of casing, the valve circle with set up between casing inner chamber and valve block, the valve circle is used for realizing the sealed between valve block and the casing inside wall.

Furthermore, the side of the main connecting plate, which is far away from the shell, is provided with an annular groove, the annular groove is used for clamping an annular bulge of the outer connecting plate, and the outer connecting plate is used for connecting the end face of an external pipeline.

Further, the main connecting plate is connected with the outer connecting plate through bolts.

Further, the surface of casing is equipped with first position sleeve, the dwang passes first position sleeve, be equipped with the bearing spare between the lateral surface of dwang and the medial surface of first position sleeve.

Further, the one end and the handle fixed connection of casing are worn out to the dwang.

Further, one side of the valve block, which deviates from the rotating rod, is provided with a supporting rod, the supporting rod is fixedly connected with the valve block, the supporting rod penetrates out of the side wall of the shell and then is rotatably connected with the second positioning sleeve, and a bearing piece is arranged between the supporting rod and the second positioning sleeve.

The invention has the beneficial effects that:

1) the temperature sensor transmits temperature information to the alarm in a signal connection mode, and when the temperature value obtained by the alarm is greater than a set value, an alarm can be given out, so that the monitoring and the alarm of the internal temperature of the butterfly valve are realized; the influence on the valve body and subsequent workpieces to which liquid or gas flows due to overhigh temperature in the valve body is avoided.

2) Adopt the ribbon structure, when leaking gas between main connecting plate and the outer connecting plate, the ribbon structure is flown upward along with the wind and can be reminded operating personnel, avoids the safety risk that leaks gas for a long time and cause.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a front view of the overall structure in an embodiment of the present invention;

FIG. 2 is a side view showing the internal structure of a valve body in the embodiment of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 1.

In the figure: 1. a housing; 2. a valve ring; 3. a valve plate; 4. rotating the rod; 5. a bearing; 6. a first positioning sleeve; 7. a handle; 8. a main connection plate; 9. a seal ring; 10. a gasket; 11. an outer connecting plate; 12. connecting holes; 13. a streamer; 14. a pipeline; 15. an alarm; 16. a temperature sensor; 17. a second positioning sleeve; 18. a support rod.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In an exemplary embodiment of the present invention, as shown in fig. 1 to 3, a butterfly valve capable of monitoring internal temperature and gas leakage includes a housing 1, wherein main connection plates 8 are respectively fixed at openings at two ends of the housing 1, and the main connection plates 8 are used for connecting external pipes 14.

Be equipped with temperature sensor 16 in the casing 1, temperature sensor 16's probe stretches into in the inner chamber of casing 1, temperature sensor 16's signal output part is located the outside of casing 1, the surface of casing 1 is equipped with siren 15, temperature sensor 16 and siren 15 signal connection.

Specifically, the types and connection manners of the temperature sensor 16 and the alarm 15 can be set by those skilled in the art, and in the related art, there is a technology of monitoring the temperature by the temperature sensor and alarming by the alarm when the temperature is too high, which is not considered to be clear.

One end of a ribbon 13 is fixedly connected to the outer side surface of at least one main connecting plate 8, and the other end of the ribbon 13 is arranged towards the direction far away from the main connecting plate 8.

Specifically, the ribbon 13 is a flexible ribbon, and the material thereof is not limited as long as the ribbon can swing with the wind.

Further, be equipped with valve block 3 in the casing 1, valve block 3 and dwang 4 fixed connection, the one end of dwang 4 sets up in the outside of casing 1, and the other end passes the lateral wall of casing 1 and stretches into in the inner chamber of casing 1.

Specifically, the structures of the rotating rod 4, the valve plate 3 and the like can be the same as those of the existing butterfly valve structure, and are not repeated here.

Further, be equipped with valve circle 2 in the inner chamber of casing 1, valve circle 2 with set up between 1 inner chamber of casing and valve block, valve circle 2 is used for realizing the sealed between valve block and the 1 inside wall of casing.

Further, the side of the main connecting plate 8 departing from the housing 1 is provided with an annular groove, the annular groove is used for clamping an annular protrusion of the outer connecting plate 11, and the outer connecting plate 11 is used for connecting the end face of the external pipeline 14.

Specifically, set up annular groove on main connecting plate 8, set up annular protrusion on outer connecting plate 11, the effectual leakproofness that has increased. A sealing gasket 10 is arranged in the annular groove, and a sealing ring 9 is arranged between the end faces of the main connecting plate 8 and the outer connecting plate 11.

Further, the main connecting plate 8 is connected with the outer connecting plate 11 through bolts.

Specifically, there are connection holes 12 through which bolts pass between the main connection plate 8 and the outer connection plate 11, respectively.

Further, the surface of casing 1 is equipped with first position sleeve 6, dwang 4 passes first position sleeve 6, be equipped with bearing spare 5 between the lateral surface of dwang 4 and the medial surface of first position sleeve 6. One side that the valve block deviates from dwang 4 is equipped with the bracing piece, bracing piece and valve block fixed connection, the bracing piece is worn out and is connected with the rotation of second position sleeve after the lateral wall of casing 1, be equipped with bearing spare 5 between bracing piece and the second position sleeve. One end of the rotating rod 4 penetrating through the shell 1 is fixedly connected with the handle 7.

The cooperation of the first positioning sleeve 6, the second positioning sleeve, the rotating rod 4 and the supporting rod is adopted, so that the valve plate can stably rotate in the inner cavity of the shell 1.

The working principle is as follows: when the device is used, the two outer connecting plates 11 are respectively and fixedly connected with the end faces of the external pipelines 14, and then the outer connecting plates 11 are connected with the main connecting plate 8 through bolts to complete the installation of the butterfly valve between the external pipelines 14 for transportation.

When the temperature in the inner cavity of the shell 1 is too high, the signal of the temperature sensor 16 is transmitted to the alarm 15, and the alarm 15 gives an alarm to remind a worker to close the butterfly valve in time.

When air leaks between the main connecting plate 8 and the outer connecting plate 11, the ribbons 13 can float and swing, and an operator can timely maintain the ribbons after observing the ribbons.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. A butterfly valve capable of monitoring internal temperature and gas leakage is characterized by comprising a shell, wherein main connecting plates are fixedly arranged at openings at two ends of the shell respectively and are used for connecting external pipelines;

the temperature sensor is arranged in the shell, a probe of the temperature sensor extends into an inner cavity of the shell, a signal output end of the temperature sensor is positioned outside the shell, an alarm is arranged on the outer surface of the shell, and the temperature sensor is in signal connection with the alarm;

2. The butterfly valve of claim 1, wherein the housing has a valve plate, the valve plate is fixedly connected to a rotating rod, one end of the rotating rod is disposed outside the housing, and the other end of the rotating rod penetrates through a sidewall of the housing and extends into an inner cavity of the housing.

3. The butterfly valve of claim 1, wherein a valve ring is disposed in the cavity of the housing, the valve ring being disposed between the cavity of the housing and the valve plate, the valve ring being configured to seal the valve plate to the inner wall of the housing.

4. The butterfly valve of claim 1 wherein the side of the main connection plate facing away from the housing has an annular groove for engaging an annular protrusion of an outer connection plate for engaging an end surface of an external pipe.

5. The butterfly valve of claim 1 wherein the main connection plate and the outer connection plate are bolted together.

6. The butterfly valve according to claim 2, wherein a first positioning sleeve is disposed on an outer surface of the housing, the rotation rod passes through the first positioning sleeve, and a bearing member is disposed between an outer side surface of the rotation rod and an inner side surface of the first positioning sleeve.

7. The butterfly valve of claim 2, wherein the rotation rod is fixedly connected to the handle at an end thereof extending out of the housing.

8. The butterfly valve of claim 2, wherein a support rod is disposed on a side of the valve plate away from the rotating rod, the support rod is fixedly connected to the valve plate, the support rod penetrates through a sidewall of the housing and is rotatably connected to the second positioning sleeve, and a bearing is disposed between the support rod and the second positioning sleeve.