CN201363477Y - Chain-drive ball valve - Google Patents

Abstract

A chain-drive ball valve solves the problems of the prior chain valve, such as the great possibility of leakage and material deposit. The chain-drive ball valve comprises a ball valve consisting of a valve body, a valve seat, a ball and a valve stem, and a set of drive device mounted on the valve stem of the ball valve. The drive device comprises a worm gear device with a worm wheel and a worm; one end of the worm gear device is mounted on the valve stem of the ball valve; a sprocket is mounted at the other end of the worm gear device; and a chain is mounted on the sprocket. As the substitute of a chain valve, the chain-drive ball valve can reduce the leakage points of the valve body while ensuring the same labor intensity. In addition, the ball valve with the smooth internal structure can obviate material deposit, thereby ensuring normal production.

Description

A kind of chain-driven ball valve

Technical field

The utility model relates to the control valve on a kind of equipment import and export pipeline, refers in particular to a kind of chain-driven ball valve.

Background technique

It is to be used for the fluid thing on the pipeline is carried out the valve of flow control that equipment is imported and exported control valve on the pipeline, as shown in Figure 1, shown in Figure 1 is the position view that original sulphur ammonium granulation mother liquor is supplied with control valve in the groove equipment, sulphur ammonium granulation mother liquor (ammonium sulfate liquid, be the mixture of solution and crystal) supply groove 11 be that epimere is the cylinder of diameter 1600mm, hypomere is the vertical dead slot of conical lower portion, its conical lower portion both sides are two chain valves 12,13 control valves as the outflow of sulphur ammonium granulation mother liquor, when sulphur ammonium granulation mother liquor when a high position of supplying with groove 11 is supplied with groove bottom from the flow point two-way through chain valve 12,13 and intercepter valve (IV) 14,15, enter centrifuge 16,17 carry out solid-liquid separation, wherein reference character 12 ', 13 ' be respectively chain valve 12,13 outlet.

The structure of existing chain valve 12,13 is referring to Fig. 2-Fig. 4, and Fig. 2 is existing chain valve arrangement figure; Fig. 3 is the right elevation of Fig. 2; Fig. 4 is the cut-away view of chain valve among Fig. 3.

The structure of chain valve 12 is identical with chain valve 13, and existing is the structure of example simple declaration chain valve with chain valve 13.Chain 135 drives sprocket wheel 133, sprocket wheel 133 drives the worm gear 131 that worm screw 132 drives on the sector 134, wherein worm gear 131 and sector 134 are connected and fixed by bolt, rotation by sector 134, change the aperture size (base plate of chain valve 13 is communicated be sector channel) of fan-shaped fluid passage with the bottom of supplying with groove 11, by regulated fluid passage aperture size, play the effect of regulating flow and cutout.

Above-mentioned this existing chain valve arrangement complexity, leakage point is more, except chain valve housing and supply groove connection part, also all leak easily at the sealing position of sector and sector channel and casing and each rotary component, and valve inner has the dead angle, buildup causes each rotary component stuck easily.

The model utility content

The purpose of this utility model is in order to solve the problem that prior art exists, a kind of leakage point that can reduce valve body to be provided, can't producing the buildup phenomenon, to guarantee to produce the chain-driven ball valve of normal operation.

The purpose of this utility model is achieved in that

A kind of chain-driven ball valve is characterized in that comprising:

A ball valve is made up of valve body, valve seat, spheroid and valve rod;

One cover transmission device is installed on the valve rod of described ball valve, and transmission device comprises: the worm and gear device that has worm screw and worm gear; One end of worm and gear device is installed on the valve rod of described ball valve, and the other end is installed a sprocket wheel; A chain is housed on the sprocket wheel.

It is the ball valve of JIS10K/100A/CF3M that described ball valve adopts model.

The beneficial effects of the utility model:

Utilize chain-driven ball valve of the present utility model to replace existing chain valve, guaranteeing to have reduced the leakage point of valve body under the constant prerequisite of labor intensity, and unobstructed owing to the ball valve body interior smooth, can not produce the buildup phenomenon, guarantee to produce normal operation.

For further specifying above-mentioned purpose of the present utility model, structural feature and effect, the utility model is elaborated below with reference to accompanying drawing.

Description of drawings

Fig. 1 is the position view that existing sulphur ammonium granulation mother liquor is supplied with control valve in the groove equipment;

Fig. 2 is existing chain valve arrangement figure;

Fig. 3 is the right elevation of Fig. 2;

Fig. 4 is the cut-away view of chain valve among Fig. 3;

The ball-valve structure figure of Fig. 5 for using in the chain-driven ball valve of the present utility model;

Fig. 6 is a chain-driven ball-valve structure schematic representation of the present utility model;

Fig. 7 is the right elevation of Fig. 6;

Fig. 8 is the key plan of chain-driven ball valve of the present utility model in sulphur ammonium granulation mother liquor supply groove equipment.

Embodiment

Be elaborated below in conjunction with embodiment's accompanying drawing embodiment to chain-driven ball valve of the present utility model.

Referring to Fig. 5-Fig. 7, the ball-valve structure figure of Fig. 5 for using in the chain-driven ball valve of the present utility model; Fig. 6 is a chain-driven ball-valve structure schematic representation of the present utility model; Fig. 7 is the right elevation of Fig. 6.

The utility model chain-driven ball valve 100 comprises:

A ball valve 20, it is the JIS10K/100A/CF3M ball valve that the utility model adopts model, this ball valve 20 mainly is made up of parts such as valve body 22, valve seat 24, spheroid 23 and valve rods 21.Its open-shut device is a spheroid 23, utilizes spheroid 23 to realize the purpose of opening and closing around the axis half-twist of valve rod 21.Ball valve 20 is mainly used in cut-out, distribution, changes media flow direction and Flow-rate adjustment on the pipeline of equipment.

One cover transmission device 30, be installed on the valve rod 21 of ball valve 20, transmission device 30 comprises: the worm and gear device that has worm screw 33 and worm gear 34, one end of worm and gear device is installed on the valve rod 21 of ball valve 20, the other end of worm and gear device is installed a sprocket wheel 31, and a chain 32 for user's operation is housed on the sprocket wheel 31.

Because the sealability of ball valve 20 is better, leakage point is few, and because valve body 22 interior smooth of ball valve 20 are unobstructed, can not produce the buildup phenomenon, guarantees to produce normal operation.The production operation personnel drive sprocket wheel 31 rotations by pulling chain 32, and moment passes to the valve rod 21 of ball valve 20 by the worm and gear device, thereby carry out the switch motion of ball valve 20 or adjust valve opening.

The leakage point of ball valve body inside mainly contains two places: a place is the sealing position of spheroid and valve seat, another place is stem packing sealing position, its sealability is better than existing chain valve greatly, therefore, replace existing chain valve with the chain-driven ball valve, reduce the leakage point of valve body, and, can not produce the buildup phenomenon because the ball valve body interior smooth is unobstructed.

Fig. 8 is the key plan of chain-driven ball valve of the present utility model in sulphur ammonium granulation mother liquor supply groove equipment, as shown in the figure, the hole 81,82 of opening two 100A in the bottom of supplying with groove 81, a chain-driven ball valve 100 of the present utility model is installed respectively in the hole 81,82, and these two chain-driven ball valves 100 are connected with intercepter valve (IV) 14,15 in the equipment respectively.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model the above embodiment's variation, modification.

Claims (2)

1, a kind of chain-driven ball valve is characterized in that comprising:

A ball valve is made up of valve body, valve seat, spheroid and valve rod;

One cover transmission device is installed on the valve rod of described ball valve, and transmission device comprises: the worm and gear device that has worm screw and worm gear; One end of worm and gear device is installed on the valve rod of described ball valve, and the other end is installed a sprocket wheel; A chain is housed on the sprocket wheel.

2, chain-driven ball valve as claimed in claim 1 is characterized in that:

It is the ball valve of JIS10K/100A/CF3M that described ball valve adopts model.

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