CN213176836U

CN213176836U - Non-rotational flow energy-saving butterfly valve

Info

Publication number: CN213176836U
Application number: CN202021523776.9U
Authority: CN
Inventors: 胡艺平; 唐启炜; 王吉兵; 李铭良
Original assignee: Quanwatts Valves Co ltd
Current assignee: Quanwatts Valves Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-05-11
Anticipated expiration: 2030-07-28

Abstract

The utility model provides a simple structure, can eliminate energy-conserving butterfly valve of no whirl of whirl, including the butterfly valve body, along inhalant canal and the exhalant canal that butterfly valve body medium flow direction was seted up, set up in inhalant canal with be used for controlling the butterfly plate that the fluid flows between the exhalant canal, be equipped with in the butterfly valve body and produce the sealed bulge loop of sealed effect with the butterfly plate, sealed bulge loop is located inhalant canal end and is provided with the first department that prevents fluid medium formation whirl and prevents the whirl device, sealed bulge loop is located the exhalant canal end and is provided with the second department that prevents fluid medium formation whirl and prevents the whirl device.

Description

Non-rotational flow energy-saving butterfly valve

Technical Field

The utility model relates to a valve field, in particular to energy-conserving butterfly valve of no whirl.

Background

The butterfly valve is also called a flap valve, is a regulating valve with simple structure, and can be used for controlling the flow of a medium in a low-pressure pipeline. The butterfly valve is a valve in which an opening and closing member (butterfly plate) is driven by a valve rod and rotates around the axis of the valve rod. A good sealing effect can be achieved.

Referring to fig. 1, which is a partially cut-away structure of a butterfly valve in the prior art, a fluid medium flows in from a water inlet channel 2 'of the butterfly valve 1', flows through a sealing convex ring 4 'at a butterfly plate sealing part, and then flows out from a water outlet channel 3'. Because the speed of the fluid medium is changed greatly, and the fluid medium has the influence of viscous resistance, uneven pressure and other factors, the rotational flow 5 'is easily formed at the sealing convex ring 4'. The reason is that: the fluid media cannot be smoothly converged together through a vertical plane, so that a vortex is formed to consume energy, and a rotational flow and a turbulent flow are formed. The swirling flow belongs to a low-pressure area, so that the fluid resistance is increased, the water passing capacity is influenced, and the flow is influenced. The generation of the turbulent flow can cause unstable vibration in the running process of a pipeline system, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a simple structure, can eliminate the energy-conserving butterfly valve of no whirl of whirl.

In order to achieve the above object, the technical scheme of the utility model provides a no energy-conserving butterfly valve of whirl is provided, including the butterfly valve body, along inhalant canal and exhalant canal that butterfly valve body medium flow direction was seted up, set up in inhalant canal with be used for controlling the butterfly plate that the fluid flows between the exhalant canal, be equipped with in the butterfly valve body and produce the sealed bulge loop of sealed effect with the butterfly plate, sealed bulge loop is located inhalant canal end and is provided with the first department that prevents fluid medium formation whirl and prevents the whirl device, sealed bulge loop is located the exhalant canal end and is provided with the second department that prevents that fluid medium from forming the whirl and prevents the whirl device. The further improvement is that: the first anti-swirl device is arranged in the butterfly valve body and is provided with a first inclined plane used for reducing fluid resistance and preventing formation of swirl on the inner wall of the water inlet channel, and the first inclined plane is gradually inclined from the top end of the water inlet channel to the top end of the sealing convex ring.

The further improvement is that: the first anti-swirl device is as follows: the butterfly valve is characterized in that a first inclined plane used for reducing fluid resistance to prevent rotational flow is arranged in the butterfly valve body, the first inclined plane is located in the water inlet channel, and the first inclined plane is gradually inclined from the water inlet channel to the top end of the sealing convex ring.

The further improvement is that: the first inclined surface is a first streamline inclined surface.

The further improvement is that: the second anti-swirl device is as follows: the butterfly valve is characterized in that a second inclined surface used for reducing fluid resistance to prevent the formation of rotational flow is arranged in the butterfly valve body, the second inclined surface is positioned in the water outlet channel, and the second inclined surface gradually inclines from the top end of the sealing convex ring to the water outlet channel.

The further improvement is that: the second inclined surface is a second streamline inclined surface.

The utility model has the advantages and the beneficial effects that:

1. the vertical plane both ends of the sealed bulge loop in the butterfly valve adopt streamlined inclined plane excessive design respectively to make rivers smooth-going excessive, and the water film is smooth to converge, thoroughly eliminates the production of whirl, the loss of energy when avoiding producing the whirl to energy-conserving effect has been played.

2. The non-rotational flow reduces the influence of fluid resistance on the water passing capacity and the flow. Meanwhile, unstable vibration in the running process of a pipeline system caused by the generation of the turbulent flow is avoided, and potential safety hazards caused by the turbulent flow are eliminated.

Drawings

Fig. 1 is a schematic view of a prior art fluid medium partially cut away by a butterfly valve.

Fig. 2 is the embodiment of the utility model provides a structure sketch map is cut open to energy-conserving butterfly valve of no whirl.

Fig. 3 is a schematic view of a partially cut-open structure of a non-swirl energy-saving butterfly valve for fluid according to an embodiment of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 2-3, the non-rotational flow energy-saving butterfly valve comprises a butterfly valve body 1, a water inlet channel 3 and a water outlet channel 4 which are arranged along the water flow direction of the butterfly valve body 1, and a butterfly plate 2 which is arranged between the water inlet channel 3 and the water outlet channel 4 and is used for controlling the flow of fluid, wherein a sealing convex ring 5 which generates a sealing effect with the butterfly plate 2 is arranged in the butterfly valve body 1, the sealing convex ring 5 is arranged at a first position of the water inlet channel 3 and is provided with a rotational flow prevention device for preventing the fluid medium from forming rotational flow, the first position rotational flow prevention device is a first linear inclined surface 6 arranged in the butterfly valve body 1, the first linear inclined surface 6 is arranged in the water inlet channel, the first linear inclined surface 6 is gradually inclined from the water inlet channel 3 to the top end of the sealing convex ring 5, the sealing convex ring 5 is arranged at a second position of the water inlet channel 3 and is provided with, the second anti-swirl device is characterized in that the butterfly valve body 1 is provided with a second streamline inclined surface 7, the second streamline inclined surface 7 is positioned in the water outlet channel, and the second streamline inclined surface 7 is gradually inclined from the top end of the sealing convex ring 5 to the water outlet channel 4. As shown in fig. 3, when water flows in from the water inlet channel 3, the water flows through the first streamline inclined surface 6 to reach the top end of the sealing convex ring 5, and the vertical surface of the sealing convex ring 5 adopts streamline transition design to make the water flow smoothly transition, so that the water film is smoothly converged, the generation of rotational flow is thoroughly eliminated, the energy loss during the rotational flow is avoided, and the energy-saving effect is achieved. Similarly, when water flows to the water outlet channel 4 from the top end of the sealing convex ring 5, the water flows to the water outlet channel 4 through the second streamline-type inclined plane 7, and the vertical plane of the sealing convex ring 5 adopts streamline-type transition design to enable the water flow to be smooth and excessive, so that the water film is smoothly converged, the generation of rotational flow is thoroughly eliminated, the energy loss during the rotational flow is avoided, and the energy-saving effect is achieved.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents.

Claims

1. Energy-conserving butterfly valve of no whirl, including the butterfly valve body, along inhalant canal and exhalant canal that butterfly valve body medium flow direction was seted up, set up in inhalant canal with be used for controlling the butterfly plate that the fluid flows between the exhalant canal, be equipped with in the butterfly valve body and produce the sealed bulge loop of sealed effect with the butterfly plate, its characterized in that: the sealing convex ring is arranged at the water inlet channel end and is provided with a first anti-cyclone device for preventing the fluid medium from forming cyclone, and the sealing convex ring is arranged at the water outlet channel end and is provided with a second anti-cyclone device for preventing the fluid medium from forming cyclone.

2. The swirl-free energy-saving butterfly valve according to claim 1, wherein: the first anti-swirl device is as follows: the butterfly valve is characterized in that a first inclined plane used for reducing fluid resistance to prevent rotational flow is arranged in the butterfly valve body, the first inclined plane is located in the water inlet channel, and the first inclined plane is gradually inclined from the water inlet channel to the top end of the sealing convex ring.

3. The swirl-free energy-saving butterfly valve according to claim 2, wherein: the first inclined surface is a first streamline inclined surface.

4. The swirl-free energy-saving butterfly valve according to claim 1, wherein: the second anti-swirl device is as follows: the butterfly valve is characterized in that a second inclined surface used for reducing fluid resistance to prevent the formation of rotational flow is arranged in the butterfly valve body, the second inclined surface is positioned in the water outlet channel, and the second inclined surface gradually inclines from the top end of the sealing convex ring to the water outlet channel.

5. The swirl-free energy-saving butterfly valve according to claim 4, wherein: the second inclined surface is a second streamline inclined surface.