CN216843151U

CN216843151U - Desulfurization center line butterfly valve

Info

Publication number: CN216843151U
Application number: CN202123219987.0U
Authority: CN
Inventors: 陈炳顺
Original assignee: Fujian Kalsiwei Technology Co ltd
Current assignee: Fujian Kalsiwei Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-28
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a desulfurization central line butterfly valve, it relates to pipeline annex valve technical field. The inner wall of butterfly valve body is provided with rubber lining, and both ends are provided with first connection flange dish about the butterfly valve body, the inside center of butterfly valve body is provided with the butterfly plate, the valve rod passes through the bearing and is connected with the rotation of butterfly valve body, connect the operation hand wheel after the dwang is worn out fixed section of thick bamboo, the valve rod upper end seted up with dwang complex recess, fixture block joint complex draw-in groove has been seted up to the recess lateral wall, the limiting plate passes through the top inner wall connection of expanding spring with fixed section of thick bamboo, the elasticity sealing washer is fixed with the fixing base joint that sets up at butterfly valve body inner wall. After the technical scheme is adopted, the beneficial effects of the utility model are that: can prevent that non-operating personnel from carrying out the maloperation to the butterfly valve, improve the safety in utilization, have flexible compensation function, improve the commonality, reduce the rigid contact of flexible compensating pipe with the butterfly valve body, prolong life, the leakproofness has obtained the enhancement simultaneously.

Description

Desulfurization central line butterfly valve

Technical Field

The utility model relates to a pipeline annex valve technical field, concretely relates to desulfurization central line butterfly valve.

Background

Desulfurization broadly refers to the process of removing sulfur from fuel prior to combustion and prior to flue gas emission. Is one of the important technical measures for preventing the air pollution. The prior desulfurization method generally comprises three methods of desulfurization before combustion, desulfurization during combustion and desulfurization after combustion. With the development of industry and the continuous improvement of living standard of people, the desire for energy is increasing, and sulfur dioxide in coal-fired flue gas becomes a main cause of air pollution. The reduction of sulfur dioxide pollution is a current urgent need for atmospheric environmental treatment. Many flue gas desulfurization processes have been widely used in industry, and have important practical significance for various filtration and treatment of incinerator tail gas. The center line butterfly valve is often used on a desulfurization pipeline, but the desulfurization center line butterfly valve in the prior art has some defects in the use process: firstly, the opening and closing of the butterfly valve are simple and labor-saving, and a common operating hand wheel is in a free state, so that the phenomenon that some non-operators perform misoperation on the butterfly valve easily occurs, the desulfurization process is influenced, and the use safety is low; secondly, under the general condition, the mounted position of butterfly valve is fixed, and the distance that the pipeline was reserved is also fixed, is not convenient for arrange the change to reserving the pipeline, and consequently the flexible compensation function of butterfly valve seems especially important, and some butterfly valves that have flexible compensation function design reasonable inadequately, the butterfly valve mostly is the rigidity collision with the mounting means of flexible compensation pipe, causes the damage of butterfly valve easily, reduces life, and sealed effect is not good. Therefore, a novel desulfurization center line butterfly valve is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a desulfurization central line butterfly valve and can prevent that non-operating personnel from carrying out the maloperation to the butterfly valve, improved the safety in utilization, have flexible compensation function, improved the commonality, reduced the rigid contact of flexible compensating pipe with the butterfly valve body, prolonged life, the leakproofness has obtained the enhancement simultaneously, and the practicality is strong, has brought better use prospect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the butterfly valve comprises a butterfly valve body, wherein a rubber lining is arranged on the inner wall of the butterfly valve body, first connecting flange discs are arranged at the left end and the right end of the butterfly valve body, a butterfly plate is arranged at the center inside the butterfly valve body, a valve rod is fixedly arranged at the center of a valve plate and is rotatably connected with the butterfly valve body through a bearing, the valve rod vertically and upwards penetrates out of the butterfly valve body, a rotating rod is arranged right above a port of the butterfly valve body and is connected with an operating hand wheel after penetrating out of a fixing cylinder, a groove matched with the rotating rod is formed in the upper end of the valve rod, a clamping block is arranged on the periphery of the bottom of the rotating rod, clamping grooves matched with the clamping block in a clamping manner are formed in the side wall of each groove, a limiting plate is fixedly connected on a rod body above the clamping blocks and is connected with the inner wall at the top of the fixing cylinder through a telescopic spring, telescopic compensating pipes are connected with the left side and the right side of the butterfly valve body and are fixedly connected with the first connecting flange discs through fixing discs arranged at the waist, the flexible compensating pipe is provided with the elastic sealing circle with butterfly valve body link, and the elastic sealing circle is fixed with the fixing base joint that sets up at the butterfly valve body inner wall.

The fixing seat is provided with an annular groove body matched with the elastic sealing ring.

The fixed cylinder is fixedly connected to the butterfly valve body.

The outer diameter of the connecting part of the telescopic compensating pipe and the butterfly valve body is smaller than the inner diameter of the butterfly valve body.

The fixed disk is fixedly connected with the first connecting flange disk through a screw, and an elastic gasket is arranged on the contact surface of the fixed disk and the first connecting flange disk.

And a second connecting flange is arranged at one end of the telescopic compensating pipe, which is far away from the elastic sealing ring.

After adopting above-mentioned technical scheme, compare in prior art and have following beneficial effect:

1. the control of the operating hand wheel is not in a free state through the matching arrangement of the rotating rod, the limiting plate, the clamping block, the telescopic spring, the clamping groove and the like, so that misoperation of a butterfly valve body by non-operators can be prevented, and the use safety is improved;

2. can improve the commonality of butterfly valve body through setting up flexible compensating pipe, only need can cooperate the butterfly valve body to use through the flexible compensating pipe of processing different length or diameter, the external diameter of flexible compensating pipe is less than the internal diameter of butterfly valve body and can reduces the damage that flexible compensating pipe caused to the inboard rigid contact of butterfly valve body, the life of extension butterfly valve body, can improve the leakproofness of flexible compensating pipe and this body coupling of butterfly valve through elastic sealing circle and fixing base cooperation simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view corresponding to section A of FIG. 1;

fig. 3 is an enlarged view of a portion B corresponding to fig. 1.

Description of reference numerals: the butterfly valve comprises a butterfly valve body 1, a rubber lining 11, a fixed seat 12, a first connecting flange 13, a butterfly plate 2, a valve rod 3, a groove 31, a clamping groove 311, a rotating rod 4, a fixed cylinder 41, an operating hand wheel 42, a clamping block 43, a limiting plate 44, a telescopic spring 441, a telescopic compensating pipe 5, an elastic sealing ring 51, a fixed disk 52 and a second connecting flange 53.

Detailed Description

Referring to fig. 1 to fig. 3, the technical solution adopted by the present embodiment is: the butterfly valve comprises a butterfly valve body 1, a rubber lining 11 is arranged on the inner wall of the butterfly valve body 1, first connecting flange discs 13 are arranged at the left end and the right end of the butterfly valve body 1, a butterfly plate 2 is arranged at the center of the inner part of the butterfly valve body 1, a valve rod 3 is fixedly arranged at the center of the valve plate 3, the valve rod 3 is rotatably connected with the butterfly valve body 1 through a bearing, the valve rod 3 vertically and upwards penetrates out of the butterfly valve body 1, a rotating rod 4 is arranged right above the port of the butterfly valve body 1 of the valve rod 3, the rotating rod 4 penetrates out of a fixed cylinder 41 and then is connected with an operating hand wheel 42, a groove 31 matched with the rotating rod 4 is formed in the upper end of the valve rod 3, a clamping block 43 is arranged on the periphery of the bottom of the rotating rod 4, a clamping groove 311 matched with the clamping block 43 is formed in the side wall of the groove 31, a limiting plate 44 is fixedly connected on a rod body above the clamping block 43, and the limiting plate 44 is connected with the inner wall at the top part of the fixed cylinder 41 through a telescopic spring 441, the left side and the right side of the butterfly valve body 1 are connected with the telescopic compensating pipes 5, the telescopic compensating pipes 5 are fixedly connected with the first connecting flange disc 13 through fixing discs 52 arranged on the waist, elastic sealing rings 51 are arranged at the connecting ends of the telescopic compensating pipes 5 and the butterfly valve body 1, and the elastic sealing rings 51 are clamped and fixed with fixing seats 12 arranged on the inner wall of the butterfly valve body 1.

Wherein, the fixed seat 12 is provided with an annular groove body matched with the elastic sealing ring 51.

Wherein, the fixed cylinder 41 is fixedly connected to the butterfly valve body 1.

Wherein, the outer diameter of the connecting part of the telescopic compensating pipe 5 and the butterfly valve body 1 is smaller than the inner diameter of the butterfly valve body 1.

The fixed disk 52 is fixedly connected with the first connecting flange 13 through a screw, and an elastic washer is arranged on the contact surface of the fixed disk 52 and the first connecting flange 13.

Wherein, the end of the telescopic compensating pipe 5 far away from the elastic sealing ring 51 is provided with a second connecting flange 53.

The utility model discloses a theory of operation: when the diameter or the length of a pipeline connected with the butterfly valve body is not proper, inserting corresponding telescopic compensating pipes into two sides of an inlet and an outlet of the butterfly valve body, wherein the outer diameter of each telescopic compensating pipe is smaller than the inner diameter of the butterfly valve body, tightly clamping an elastic sealing ring into a matching groove on a fixed seat after the pipe end of each telescopic compensating pipe is inserted into the butterfly valve body, and then installing a fixed disk on a first connecting flange disk through a screw; when the butterfly valve body is opened and closed to needs, will operate the hand wheel and extrude downwards, make the dwang lower extreme stretch into the recess, through the mutually supporting of a plurality of fixture blocks and draw-in groove, make the dwang drive the valve rod and rotate to accomplish opening and closing of valve plate, open and close the completion back, loosen the operation hand wheel, the operation hand wheel makes dwang and recess separation through expanding spring's restoring force, and gets back to initial position, can prevent that non-operating personnel from carrying out the maloperation.

The above description is only used for illustrating the technical solutions of the present invention and not for limiting the same, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A desulfurization center line butterfly valve which is characterized in that: the butterfly valve comprises a butterfly valve body, wherein a rubber lining is arranged on the inner wall of the butterfly valve body, first connecting flange discs are arranged at the left end and the right end of the butterfly valve body, a butterfly plate is arranged at the center inside the butterfly valve body, a valve rod is fixedly arranged at the center of the valve plate and is rotationally connected with the butterfly valve body through a bearing, the valve rod vertically and upwards penetrates out of the butterfly valve body, a rotating rod is arranged right above a port of the butterfly valve body and is connected with an operating hand wheel after penetrating out of a fixing cylinder, a groove matched with the rotating rod is formed in the upper end of the valve rod, a clamping block is arranged on the periphery of the bottom of the rotating rod, a clamping groove matched with the clamping block in a clamping manner is formed in the side wall of the groove, a limiting plate is fixedly connected on the rod body above the clamping block by virtue of the rotating rod, the limiting plate is connected with the inner wall at the top of the fixing cylinder through a telescopic spring, telescopic compensating pipes are connected with the left side and the right side of the butterfly valve body, and are fixedly connected with the first connecting flange discs through fixing discs arranged at the waist, the flexible compensating pipe is provided with the elastic sealing circle with butterfly valve body link, and the elastic sealing circle is fixed with the fixing base joint that sets up at the butterfly valve body inner wall.

2. The desulfurized centerline butterfly valve of claim 1, wherein: the fixing seat is provided with an annular groove body matched with the elastic sealing ring.

3. The desulfurized centerline butterfly valve of claim 1, wherein: the fixed cylinder is fixedly connected to the butterfly valve body.

4. The desulfurized center line butterfly valve of claim 1, wherein: the outer diameter of the connecting part of the telescopic compensating pipe and the butterfly valve body is smaller than the inner diameter of the butterfly valve body.

5. The desulfurized centerline butterfly valve of claim 1, wherein: the fixed disk is fixedly connected with the first connecting flange disk through a screw, and an elastic gasket is arranged on the contact surface of the fixed disk and the first connecting flange disk.

6. The desulfurized centerline butterfly valve of claim 1, wherein: and a second connecting flange is arranged at one end of the telescopic compensating pipe, which is far away from the elastic sealing ring.