CN212177902U

CN212177902U - Heavy-calibre butterfly valve

Info

Publication number: CN212177902U
Application number: CN202020723837.XU
Authority: CN
Inventors: 岳喜瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-12-18
Anticipated expiration: 2030-05-06

Abstract

The utility model discloses a heavy-calibre butterfly valve, including the valve body, the valve rod is installed to the valve body top, and the lateral wall of valve rod is provided with the sealing washer, and the top position that the lateral wall of valve rod is located the sealing washer is provided with the butterfly plate, and the lateral wall of valve rod is located the butterfly plate top and is provided with the clamp cover, and the lateral wall of valve rod is located the clamp cover top and is provided with the filler, and the filler is high temperature lubricating grease, and the lateral wall of valve rod is located the filler top position and installs gland, and. The utility model discloses the effectual dead phenomenon of valve card of having solved has lubricated the valve rod simultaneously, great reduction the fault rate, improved the life of valve greatly, practiced thrift the cost in business, the fault rate of reduction has reduced the safety ring protects the incident.

Description

Heavy-calibre butterfly valve

Technical Field

The utility model relates to a butterfly valve field specifically is a heavy-calibre butterfly valve.

Background

The butterfly valve mainly plays a role in cutting off and throttling on the pipeline. The large-scale high-temperature butterfly valve is manufactured by welding steel plates, is mainly used for smoke and air ducts and gas pipelines of high-temperature media, and has the characteristics of an industrial special butterfly valve: the high-temperature-resistant valve has the advantages of high temperature resistance, wide applicable pressure range, large nominal diameter of the valve, manufacture of the valve body by carbon steel, and replacement of a rubber ring by a metal ring of a sealing ring of the valve plate. Due to high temperature, impurities and corrosive substances, after the valve is used for a period of time, the valve is often stuck, so that the valve cannot act, normal operation of production is influenced, and a plurality of potential safety hazards are brought.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heavy-calibre butterfly valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a heavy-calibre butterfly valve, includes the valve body, and the valve rod is installed to the valve body top, and the lateral wall of valve rod is provided with the sealing washer, and the top position that the lateral wall of valve rod is located the sealing washer is provided with the butterfly plate, and the lateral wall of valve rod is located the butterfly plate top and is provided with the clamp cover, and the lateral wall of valve rod is located the clamp cover top and is provided with the filler, and the filler is high temperature lubricating grease, and the lateral wall of valve rod is located the filler top.

As a further aspect of the present invention: the valve body is fixedly connected through a bolt.

As a further aspect of the present invention: the number of the bolts is twelve.

As a further aspect of the present invention: the side wall of the lower end of the valve rod is provided with a filler, and the side wall of the filler is provided with an oil injection nozzle.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the effectual dead phenomenon of valve card of having solved has lubricated the valve rod simultaneously, great reduction the fault rate, improved the life of valve greatly, practiced thrift the cost in business, the fault rate of reduction has reduced the safety ring protects the incident.

Drawings

Fig. 1 is a schematic structural diagram of a large-diameter butterfly valve.

Fig. 2 is a left side view of a large diameter butterfly valve.

In the figure: 1-valve body, 2-valve rod, 3-sealing ring, 4-butterfly plate, 5-jacket, 6-filler, 7-filler gland, 8-oil nozzle, 9-bolt.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

Referring to fig. 1-2, a large-diameter butterfly valve comprises a valve body 1, wherein a valve rod 2 is installed above the valve body 1, a sealing ring 3 is arranged on the side wall of the valve rod 2, a butterfly plate 4 is arranged on the side wall of the valve rod 2 above the sealing ring 3, a jacket 5 is arranged on the side wall of the valve rod 2 above the butterfly plate 4, a filler 6 is arranged on the side wall of the valve rod 2 above the jacket 5, the filler 6 is high-temperature grease, a filler gland 7 is installed on the side wall of the valve rod 2 above the filler 6, and an oil injection nozzle 8 is arranged on the side wall of the;

after transformation, the filler 6 is changed into high-temperature lubricating grease (molybdenum disulfide ultra-high-temperature lubricating grease AC-GW1000, HP2 high-temperature lubricating grease and the like), and the oil injection nozzle 8 is installed (for example, DN1200 is injected into 10 ml/station every month according to actual conditions), so that the medium temperature can be endured within the range of minus 30-800 ℃, the medium pressure is +/-50 KPa, the problem of corrosion of the valve rod 2 is solved, the lubricating effect is achieved, and the blocking failure rate of the valve is greatly reduced.

The specific installation mode of the valve body 1 is not limited, and in the embodiment, preferably, the valve body 1 is fixedly connected through a bolt 9;

the specific number of the bolts 9 is not limited, and in the embodiment, preferably, the number of the bolts 9 is twelve;

example 2

In order to further improve the fault tolerance of a large-diameter butterfly valve and reduce the occurrence of the valve blocking phenomenon, the embodiment is further improved on the basis of embodiment 1, a filler 6 is arranged on the side wall of the lower end of the valve rod 2, and an oil injection nozzle 8 is arranged on the side wall of the filler 6; the filler 6 is arranged on the side wall of the lower end of the valve rod 2, and the oil injection nozzle 8 is arranged on the side wall of the filler 6, so that the fault tolerance of the large-diameter butterfly valve is improved, the problem of corrosion of the valve rod is solved, and the lubricating effect is achieved.

The utility model discloses a theory of operation is: after transformation, the filler 6 is changed into high-temperature lubricating grease (molybdenum disulfide ultra-high temperature lubricating grease AC-GW1000, HP2 high temperature lubricating grease and the like), and an oil injection nozzle 8 is installed at the same time; not only solved the problem of valve rod 2 corruption, still played lubricated effect simultaneously, solved the dead trouble of valve card.

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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a heavy-calibre butterfly valve, including valve body (1), valve rod (2) are installed to valve body (1) top, the lateral wall of valve rod (2) is provided with sealing washer (3), the top position that the lateral wall of valve rod (2) is located sealing washer (3) is provided with butterfly plate (4), the lateral wall of valve rod (2) is located butterfly plate (4) top and is provided with and presss from both sides cover (5), a serial communication port, the lateral wall of valve rod (2) is located to press from both sides cover (5) top and is provided with filler (6), filler (6) are high temperature lubricating grease, gland (7) are installed to the lateral wall of valve rod (2) is located filler (6) top position, oiling mouth (8.

2. A large bore butterfly valve according to claim 1, characterised in that the valve body (1) is fixedly connected by means of bolts (9).

3. A large-bore butterfly valve according to claim 2, characterised in that said bolts (9) are twelve in number.

4. The heavy-calibre butterfly valve of claim 1 or 2, characterized in that, the lower extreme lateral wall of valve rod (2) is provided with filler (6), and the lateral wall of filler (6) has seted up oiling mouth (8).