CN220204846U - Double-eccentric sealing butterfly valve - Google Patents

Abstract

The utility model discloses a double-eccentric sealing butterfly valve which comprises a valve body, wherein two sides of the valve body are communicated with a water pipe through flanges, two sides of the surface of the valve body are fixedly connected with sealing shells, the surface of the water pipe is sleeved with a supporting pipe, and the surface of the supporting pipe is connected with the sealing shells through threads. According to the utility model, through the matched use of the valve body, the water pipe, the sealing shell, the supporting pipe, the air pressure sensor, the supporting column, the driving motor, the transverse plate, the pull rod, the spring, the limiting block, the heat dissipation shell, the limiting groove, the exhaust pipe and the exhaust fan, the functions of good leakage alarm and good dampproof effect are realized, and the problems that the sealing performance of the sealing gasket is reduced after ageing in the assembly process of the butterfly valve, the normal use is influenced, and the service life of the driving device is reduced when the driving device is used in a high-humidity environment for a long time are solved.

Description

Double-eccentric sealing butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to a double-eccentric sealing butterfly valve.

Background

The double eccentric butterfly valve is also called as a high-performance butterfly valve, is mainly suitable for drainage of systems such as water works, power plants, steel works smelting, chemical industry, water source spring engineering, environmental facility construction and the like, is particularly suitable for a water channel pipeline, is used as adjusting and intercepting equipment, and is more high-pressure-resistant, longer in service life and good in stability compared with a central line butterfly valve.

Through searching, the Chinese utility model provides a flange type double-eccentric soft sealing butterfly valve, the publication number of which is: CN207848433U, including the valve body, the valve body downside is equipped with the lower shaft, the valve body upside is equipped with the upper shaft, the valve body lower extreme is equipped with the lower extreme, the lower shaft has the bearing housing with valve body contact side cover, the valve body upper end is equipped with the flange, the flange upper end is equipped with the executor, however the sealed butterfly valve in this patent does not possess the effect of leakage alarm, in the assembly process of butterfly valve, its sealing performance after the sealed pad ages can descend, influence normal use, moreover drive arrangement uses in high humidity environment for a long time, its life can descend, for this reason, we propose a double eccentric sealed butterfly valve.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model aims to provide a double-eccentric sealing butterfly valve, which realizes the functions of leakage alarm and good dampproof effect, and solves the problems that the sealing performance of the existing sealing butterfly valve is reduced after the sealing gasket is aged in the assembly process of the butterfly valve, the normal use is affected, and the service life of a driving device is reduced when the driving device is used in a high-humidity environment for a long time.

(II) technical scheme

The technical scheme includes that the double-eccentric sealing butterfly valve comprises a valve body, wherein water pipes are communicated with two sides of the valve body through flanges, sealing shells are fixedly connected with two sides of the surface of the valve body, supporting pipes are sleeved on the surface of the water pipes, the surfaces of the supporting pipes are connected with the sealing shells through threads, air pressure sensors are communicated with the bottoms of two opposite sides of the sealing shells, a support column is communicated with the top of the valve body, a driving motor is arranged at the top of the support column, a transverse plate is fixedly connected with the bottom of the surface of the support column, pull plates are arranged on two sides of the transverse plate, pull rods are fixedly connected to one sides of the opposite sides of the pull plates, limiting blocks are fixedly connected to the tops of the pull rods, heat dissipation shells are sleeved on the tops of the surfaces of the driving motor, limiting grooves matched with the limiting blocks are formed in the bottoms of two sides of the inner cavities, a right side of the heat dissipation shell is communicated with a transverse plate, and a vent pipe is fixedly connected between the tops of the vent pipe and the vent fan.

As a preferable scheme, the opposite sides of the inner cavity of the supporting tube are fixedly connected with sealing gaskets, and the left side of the top of the inner cavity of the radiating shell is fixedly connected with a temperature and humidity sensor.

As the preferred scheme, the left side intercommunication of heat dissipation shell has the air-supply line, fixedly connected with active carbon filter screen between the top and the bottom of air-supply line inner chamber.

As an optimal scheme, the top fixedly connected with fixed plate of radiating shell, the top fixedly connected with handle of fixed plate.

As a preferable scheme, the top of the inner cavity of the heat dissipation shell is fixedly connected with a supporting frame, and the bottom of the inner cavity of the supporting frame is fixedly connected with a drying agent.

As the preferred scheme, the opening that the cooperation pull rod used has all been seted up to the both sides of diaphragm, the opposite one end of spring all with the inner wall fixed connection of diaphragm.

(III) beneficial effects

Compared with the prior art, the double-eccentric sealing butterfly valve provided by the utility model has the following beneficial effects.

1. According to the utility model, through the matched use of the valve body, the water pipe, the sealing shell, the supporting pipe, the air pressure sensor, the supporting column, the driving motor, the transverse plate, the pull rod, the spring, the limiting block, the heat dissipation shell, the limiting groove, the exhaust pipe and the exhaust fan, the functions of good leakage alarm and good dampproof effect are realized, and the problems that the sealing performance of the sealing gasket is reduced after ageing in the assembly process of the butterfly valve, the normal use is influenced, and the service life of the driving device is reduced when the driving device is used in a high-humidity environment for a long time are solved.

2. According to the utility model, the sealing gasket is arranged, so that the tightness of the connection between the sealing shell and the supporting tube can be improved, the activated carbon filter screen is arranged, air entering the air inlet pipe can be filtered, dust is prevented from entering the heat dissipation shell, moisture in the sealing shell can be adsorbed by arranging the drying agent, the drying effect is improved, the spring is arranged, the pull rod can be elastically supported, and the limiting block can be reset conveniently.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

fig. 3 is an enlarged view of a structure diagram of the present utility model in fig. 2.

In the figure: 1. a valve body; 2. a water pipe; 3. a sealed housing; 4. a support tube; 5. an air pressure sensor; 6. a support post; 7. a driving motor; 8. a cross plate; 9. pulling a plate; 10. a pull rod; 11. a spring; 12. a limiting block; 13. a heat dissipation shell; 14. a limit groove; 15. an exhaust pipe; 16. an exhaust fan; 17. a sealing gasket; 18. a temperature and humidity sensor; 19. a fixing plate; 20. a support frame; 21. and (5) drying agent.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. 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.

Referring to fig. 1-2, the present utility model: the utility model provides a double eccentric formula seal butterfly valve, includes valve body 1, and there is water pipe 2 all through the flange intercommunication in the both sides of valve body 1, and the equal fixedly connected with seal shell 3 in both sides on valve body 1 surface, and the surface cover of water pipe 2 is equipped with stay tube 4, and threaded connection is passed through with seal shell 3 on the surface of stay tube 4, and the bottom of the opposite side of seal shell 3 all communicates there is air pressure sensor 5.

Wherein: when the valve body 1 is connected, the valve body is connected with the water pipe 2 through the flange, the support pipe 4 is rotated, the support pipe 4 is connected with the sealing shell 3, the sealing gasket 17 is in contact with the flange, the joints on two sides of the valve body 1 are in a sealing state, the sealing environment is monitored through the air pressure sensor 5, and when the gas leakage exists at the joint of the valve body 1, the valve body can be timely detected, and workers are reminded to overhaul.

Referring to fig. 1-3, the present utility model: the utility model provides a double eccentric formula seal butterfly valve, the top intercommunication of valve body 1 has pillar 6, the top of pillar 6 is provided with driving motor 7, the bottom fixedly connected with diaphragm 8 on pillar 6 surface, the both sides of diaphragm 8 all are provided with arm-tie 9, the equal fixedly connected with pull rod 10 of one side that arm-tie 9 is relative, the inner chamber and fixedly connected with spring 11 to the diaphragm 8 are all run through to one side that arm-tie 10 is relative, the top fixedly connected with stopper 12 of pull rod 10, driving motor 7 surface's top cover is equipped with heat dissipation shell 13, spacing groove 14 that cooperation stopper 12 used has all been seted up to the bottom of heat dissipation shell 13 inner chamber both sides, the right side intercommunication of heat dissipation shell 13 has exhaust pipe 15, fixedly connected with exhaust fan 16 between the top and the bottom of exhaust pipe 15 inner chamber, one side that the inner chamber is opposite to the stay tube 4 inner chamber is all fixedly connected with sealing pad 17, the left side fixedly connected with temperature and humidity sensor 18 at heat dissipation shell 13 inner chamber top, the left side intercommunication of heat dissipation shell 13 has the air-inlet tube, fixedly connected with active carbon filter screen between the top and the bottom of air inlet tube inner chamber, the top fixedly connected with fixed plate 19 of handle 19, the top fixedly connected with inner chamber 20 of fixed connection 13 has the inner wall 20 of the inner chamber 20 of the opposite side of support frame that the inner chamber is connected with the inner wall of support frame 8, the inner wall 20 of the opposite side of the inner chamber of support frame 20, the inner wall that the inner wall is connected with the inner chamber is connected with the inner wall of the opposite side of the inner wall of the inner chamber of the diaphragm 8, the inner wall of the support 20.

Wherein: when the temperature and humidity sensor 18 detects that the humidity in the heat dissipation shell 13 is greater than the set value, the exhaust fan 16 is started, the exhaust fan 16 is matched with the exhaust pipe 15 to exhaust the air in the heat dissipation shell 13, so that the air in the heat dissipation shell 13 is in a flowing state, the dehumidification effect on the driving motor 7 is improved, the moisture in the air is adsorbed through the drying agent 21, and the dehumidification effect is further improved.

The working principle of the utility model is that; when the valve body 1 is connected, be connected with the water pipe 2 through the flange, rotatory stay tube 4 simultaneously, be connected stay tube 4 and seal shell 3, and make sealed pad 17 and flange contact, make the junction of valve body 1 both sides all be in sealed state, monitor sealed environment through air pressure sensor 5, when there is the gas leakage in the junction of valve body 1, can in time detect, and remind the staff to overhaul, detect the humidity in the heat dissipation shell 13 when temperature and humidity sensor 18 is greater than the setting value, start exhaust fan 16, exhaust fan 16 cooperation exhaust pipe 15 is with the air discharge in the heat dissipation shell 13, make the air in the heat dissipation shell 13 be in the flow state, improve the dehumidification effect to driving motor 7, adsorb the moisture in the air through drier 21, further improve the dehumidification effect.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (6)

1. The utility model provides a double eccentric formula sealing butterfly valve, includes valve body (1), its characterized in that: the utility model discloses a heat dissipation device, including valve body (1), sealing shell (3), support tube (4), air pressure sensor (5), support column (6), driving motor (7) and air release shell (13), air release shell (13) and air release shell (13) are set up in the top of top intercommunication of valve body (1), driving motor (7) are provided with at the top of support column (6), diaphragm (8) are all provided with arm-tie (9) in the both sides on support column (6) surface, arm-tie (9) are all fixedly connected with pull rod (10) in one side opposite, pull rod (10) are all run through to the inner chamber of diaphragm (8) and fixedly connected with spring (11) in one side opposite, stopper (12) are all connected with at the top of pull rod (10), driving motor (7) are equipped with pillar (6) in the top cover on surface, air release shell (13) are all set up in the bottom of heat release shell (13) for the exhaust duct (13), an exhaust fan (16) is fixedly connected between the top and the bottom of the inner cavity of the exhaust pipe (15).

2. The double eccentric seal butterfly valve of claim 1, wherein: the heat dissipation device is characterized in that a sealing gasket (17) is fixedly connected to one side, opposite to the inner cavity, of the supporting tube (4), and a temperature and humidity sensor (18) is fixedly connected to the left side of the top of the inner cavity of the heat dissipation shell (13).

3. The double eccentric seal butterfly valve of claim 1, wherein: an air inlet pipe is communicated with the left side of the heat dissipation shell (13), and an active carbon filter screen is fixedly connected between the top and the bottom of an inner cavity of the air inlet pipe.

4. The double eccentric seal butterfly valve of claim 1, wherein: the top of radiating shell (13) fixedly connected with fixed plate (19), the top fixedly connected with handle of fixed plate (19).

5. The double eccentric seal butterfly valve of claim 1, wherein: the top of the inner cavity of the radiating shell (13) is fixedly connected with a supporting frame (20), and the bottom of the inner cavity of the supporting frame (20) is fixedly connected with a drying agent (21).

6. The double eccentric seal butterfly valve of claim 1, wherein: openings matched with the pull rods (10) are formed in two sides of the transverse plate (8), and one ends, opposite to the springs (11), of the springs are fixedly connected with the inner wall of the transverse plate (8).