CN218326272U

CN218326272U - Butterfly valve with anti-freezing function

Info

Publication number: CN218326272U
Application number: CN202223027222.1U
Authority: CN
Inventors: 林义; 徐培德
Original assignee: Zigong Industrial Valve Manufacture Co ltd
Current assignee: Zigong Industrial Valve Manufacture Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-01-17
Anticipated expiration: 2032-11-14

Abstract

The utility model relates to a butterfly valve technical field especially relates to a butterfly valve with frostproofing function. Its technical scheme includes valve leaf, valve body, inner shell and heater strip, the inside inner shell that is provided with of valve body, be provided with the cavity between inner shell and the valve body, the valve leaf is installed in the inside rotation of valve body, the inner shell inner wall is provided with the sealing washer, the valve leaf rotates and installs in the sealing washer inner wall, the inside heater strip that is provided with of cavity, the valve body upper end is provided with the water inlet, heater strip one end is provided with connects the electric plug. The utility model discloses a cavity of depositing antifreeze is deposited in inside setting of valve body, through heating wire to the antifreeze heating, carries out the heat exchange to the inside fluid of valve body, avoids the inside fluid of valve body to freeze, has avoided the valve body to promote the body that freezes to the sealing washer extrusion friction, causes the problem of the wearing and tearing of sealing washer, the utility model discloses a butterfly valve possesses fine frostproofing effect.

Description

Butterfly valve with anti-freezing function

Technical Field

The utility model relates to a butterfly valve technical field especially relates to a butterfly valve with frostproofing function.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing member being a disk and rotating around a valve shaft to achieve opening and closing.

The utility model discloses a butterfly valve that prevents sealed rubber ring skew is disclosed in publication No. CN217713677U, including butterfly valve body, connecting rod, disk seat and hand wheel, still include the valve block, this internal passageway that is used for installing the valve block that is equipped with of butterfly valve, the fixed welding in butterfly valve body top has the connecting rod, the fixed welding in connecting rod top has the disk seat, is equipped with the hand wheel on the disk seat, the fixed cover in the one end outside of butterfly valve body has first mounting flange, and the fixed cover in the one end outside of butterfly valve body far away from first mounting flange has the second mounting flange.

This butterfly valve passes through the mounting groove, the glue film, the design of draw-in groove, make the position of sealed rubber ring body inject, increase stability and be convenient for take off, but this butterfly valve does not possess frost-proof function, in cold areas, when the valve is closed, valve block water unfreezes easily, the valve block is twisted to the vigor, can extrude the icing body to the sealing washer extrusion friction, cause the wearing and tearing of sealing washer, lead to the valve block to closely laminate with the valve body inner wall after the sealing washer damages, cause the leakage of liquid, we propose a butterfly valve with frost-proof function for this reason and solve current problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a butterfly valve with function of preventing frostbite to the problem that exists among the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a butterfly valve with function of preventing frostbite, includes valve leaf, valve body, inner shell and heater strip, the inside inner shell that is provided with of valve body, be provided with the cavity between inner shell and the valve body, the valve leaf is installed in the inside rotation of valve body, the inner shell inner wall is provided with the sealing washer, the inside heater strip that is provided with of cavity, the valve body upper end is provided with the water inlet, heater strip one end is provided with connects the electric plug.

In this scheme of use during a butterfly valve with function of preventing frostbite, the valve body passes through flange and pipeline butt joint, the bolt rotates and pegs graft in the screw, the butterfly valve realizes the butt joint installation with the pipeline, the inside fluid of carrying of pipeline passes through the butterfly valve and realizes damming control, anti-icing fluid passes through the water inlet and carries in the cavity, sealed lid rotates and cup joints at the water inlet outer wall, the water inlet is to sealed the pad extrusion that fills up, the water inlet opening obtains sealing, connect the electric plug to peg graft on the circular telegram socket, the heater strip circular telegram back is to anti-icing fluid heating, the inside heating back of valve body, the inside circulation absorption heat of valve body, realize the absorption exchange of heat energy, avoid butterfly valve department fluid to freeze.

Preferably, the outer walls of two sides of the valve body are sleeved with flanges, and screw holes distributed at equal intervals are formed in the flanges. When the flange is in butt joint with the valve body, the valve body and the pipeline are fixedly installed when the bolt is rotatably inserted into the screw hole.

Preferably, the outer wall of the valve body is sleeved with a heat-insulating layer. The heat preservation layer plays the role of heat preservation for the valve body.

Preferably, the valve blade is rotatably arranged on the inner wall of the sealing ring. The valve leaf is laminated with the sealing washer, and the valve body extrudes the sealing washer when using and pastes singly, ensures the sealed of valve body adversary.

Preferably, the outer wall of the heating wire is sleeved with a connecting block, and the outer wall of the connecting block is connected with the valve body and the inner shell. The connecting block is installed the heater strip, and the heater strip after the installation has avoided playing the protection with inner shell with valve body and inner shell direct contact.

Preferably, a sealing cover is arranged at the upper end of the water inlet and rotatably installed with the water inlet through threads, a sealing gasket is arranged on the inner wall of the upper end of the sealing cover, and the lower end of the water inlet penetrates through the cavity. The water inlet is sealed by the sealing cover, the sealing performance of the water inlet is improved through the sealing gasket, and the antifreeze is conveyed into the cavity through the water inlet.

Preferably, connect the electric plug to be located the valve body outside, the valve body outer wall is provided with places the box, connect the electric plug to be located and place inside the box. The power connection plug is used for electrifying the heating wire, heating the antifreeze liquid in the cavity is achieved, and the placing box is used for storing the power connection plug.

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

1. the utility model discloses a set up the cavity in that the valve body is inside for freezing prevention liquid deposits in, and the valve body passes through the heater strip and heats the inside freezing prevention liquid of valve body in real time, and under the heat exchange of heating coolant liquid, the fluid absorption heat of the inside position of valve body ensures that the inside fluid of valve body does not freeze, plays fine guard action to the inside sealing washer of valve body.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the valve body of fig. 1 with a partially main sectional and enlarged structure according to the present invention.

Reference numerals are as follows: 1. a flange; 2. a valve leaf; 3. a valve body; 4. a cavity; 5. a water inlet; 6. placing a box; 7. connecting a power plug; 8. a heat-insulating layer; 9. a sealing cover; 10. connecting blocks; 11. a seal ring; 12. an inner shell; 13. a heating wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," 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 invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1-3, the utility model provides a butterfly valve with frostproofing function, including valve leaf 2, valve body 3, inner shell 12 and heater strip 13, flange 1 has all been cup jointed to valve body 3 both sides outer wall, the inside screw that distributes of equidistance is seted up to flange 1, the inside inner shell 12 that is provided with of valve body 3, be provided with cavity 4 between inner shell 12 and the valve body 3, heat preservation 8 has been cup jointed to valve body 3 outer wall, valve leaf 2 is installed in the inside rotation of valve body 3, inner shell 12 inner wall is provided with sealing washer 11, valve leaf 2 rotates and installs in sealing washer 11 inner wall, the inside heater strip 13 that is provided with of cavity 4, heater strip 13 outer wall has cup jointed connecting block 10, connecting block 10 outer wall distributes and is connected with inner shell 12 with valve body 3, valve body 3 upper end is provided with water inlet 5, water inlet 5 upper end is provided with sealed lid 9, sealed lid 9 rotates the installation through the screw with water inlet 5, sealed lid 9 upper end inner wall is provided with the packing pad, water inlet 5 lower extreme runs through cavity 4, heater strip 13 one end is provided with and connects electric plug 7, it is located the valve plug 7 to connect electric plug 7 to connect, it is located the valve body 3 outside to connect electric plug 7, valve body 3 outer wall to be provided with and place box 6, it is located to connect electric plug 7 to connect the inside to be located to be placed box 6.

The working principle based on the embodiment 1 is as follows: when the weather is cold, the antifreeze is conveyed to the cavity 4 through the water inlet 5, the sealing cover 9 seals the water inlet 5, the power-on plug 7 is inserted into the power-on socket, the heating wire 13 heats the antifreeze after being powered on, the valve body 3 is internally heated, the heat is absorbed by the circulation inside the valve body 3, the heat energy is absorbed and exchanged, the fluid is prevented from freezing, the fluid freezes when the valve blade 2 rotates, the ice pressurization sealing ring 11 is driven, the sealing ring 11 is damaged by solid ice with hardness, the antifreeze is heated to the inside of the cavity 4 by the heating wire 13, the fluid freezing is avoided, and when the butterfly valve is used in cold weather, the butterfly valve can be internally protected.

The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations to the above embodiments based on the technical solution of the present invention and the related teachings of the above embodiments.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a butterfly valve with prevent frostbite function, includes valve leaf (2), valve body (3), inner shell (12) and heater strip (13), its characterized in that: the inside inner shell (12) that is provided with of valve body (3), be provided with cavity (4) between inner shell (12) and valve body (3), valve leaf (2) are installed in the inside rotation of valve body (3), inner shell (12) inner wall is provided with sealing washer (11), inside heater strip (13) that is provided with of cavity (4), valve body (3) upper end is provided with water inlet (5), heater strip (13) one end is provided with connects electric plug (7).

2. The butterfly valve with the antifreezing function according to claim 1, wherein: the outer wall of both sides of valve body (3) has all cup jointed flange (1), the screw that the equidistance distributes is seted up to flange (1) inside.

3. The butterfly valve with the antifreezing function according to claim 1, wherein: and the outer wall of the valve body (3) is sleeved with a heat-insulating layer (8).

4. The butterfly valve with the antifreezing function according to claim 1, wherein: the valve leaf (2) is rotatably arranged on the inner wall of the sealing ring (11).

5. The butterfly valve with the antifreezing function according to claim 1, wherein: the outer wall of the heating wire (13) is sleeved with a connecting block (10), and the outer wall of the connecting block (10) is connected with the valve body (3) and the inner shell (12).

6. The butterfly valve with the antifreezing function according to claim 1, wherein: the water inlet (5) upper end is provided with sealed lid (9), sealed lid (9) and water inlet (5) are installed through the screw rotation, sealed lid (9) upper end inner wall is provided with sealed the pad, cavity (4) are run through to water inlet (5) lower extreme.

7. The butterfly valve with the antifreezing function according to claim 1, wherein: connect electric plug (7) to be located the valve body (3) outside, valve body (3) outer wall is provided with places box (6), connect electric plug (7) to be located and place inside box (6).