WO2019033285A1

WO2019033285A1 - Isolating valve having opposing comb fingers for sludge pipeline

Info

Publication number: WO2019033285A1
Application number: PCT/CN2017/097585
Authority: WO
Inventors: 胡俊敏
Original assignee: 深圳市能源环保有限公司
Priority date: 2017-08-16
Filing date: 2017-08-16
Publication date: 2019-02-21

Abstract

An isolating valve having opposing comb fingers for a sludge pipeline. The isolating valve comprises a valve body, a valve rod, a valve plate, and a valve rod control mechanism; the valve plate is mounted on the valve rod; the valve rod is driven to rotate by an external force, and the valve plate is driven to move by the valve rod to open or close the valve; the valve plate is of a structure having opposing comb fingers; a valve sealing device is in the form of multiple low-opening resistance triangular comb fingers (2A1, 2A2, 2A3, 2An, 2B1, 2B2, 2B3, 2Bn) engaged with each other; the valve rod rotates to make the comb fingers of the valve plate engaged with each other or disengaged. The valve rod does not axially move, so as to prevent a medium from being taken out of the valve body, thus preventing odor from escaping. Because a low-opening resistance triangular comb finger structure is adopted for the valve plate, the resistance to open or close the valve is small; moreover, because an inclined pointed surface is used as the sealing surface, alignment and sealing can be automatically performed, and the sealing surface is capable of self-recovering in a case of being worn; thus, the service life of the valve is greatly improved, and the valve manufacturing and repairing costs are reduced.

Description

Comb-toothed isolation valve for sludge pipeline

Technical field

The invention relates to a sludge pipeline valve, in particular to a comb-toothed isolation valve for a sludge pipeline.

Background technique

The common equipment for sludge transportation is a screw type sludge pump. Due to the structure of the screw sludge pump, the inlet of such a pump is rectangular.

In the prior art, the valve for providing isolation for the screw sludge pump is a rectangular single-piece gate valve core structure. And as the length of the rectangle is larger, the valve size is larger, and the more the door stem is exposed, making the processing and installation more and more difficult.

In order to meet the odorous medium that cannot be overflowed during sludge transportation, the rectangular valve and the door stem need to be completely closed, so that the valve size is more than 2 to 3 times longer than the actual spool length, thus making processing and operation more difficult. In actual use, there are disadvantages such as large installation operation surface, insufficient rigidity of the valve, long opening time, easy accumulation of sludge in the cavity, easy odor of the odor, and high price.

Summary of the invention

In order to solve the prior art problem, the present invention provides a comb-toothed isolation valve comprising a valve body, a valve stem, a valve plate and a valve stem control mechanism, the valve plate being mounted on the valve stem, and the external force driving the valve stem to rotate And the valve rod drives the valve plate to realize the opening or closing of the valve, wherein the valve plate is a comb-toothed split structure, and the valve sealing device adopts a form of a plurality of triangular comb teeth with low opening resistance, and the valve is in mesh with each other. The rod is engaged or opened by the rotation of the valve plate comb by rotation. Since the valve stem does not move axially, the medium is prevented from being carried out of the valve body to prevent odor overflow. It is suitable for sludge technology, and can also be applied to granules and viscous media. It is also suitable for the problem that the material inlet is too large and the valve body is too large and the medium gas overflows.

The present invention provides a comb-toothed isolation valve for a sludge pipe, which includes a valve body, a valve stem and a valve plate. The valve plate is mounted on the valve stem, and the external force drives the valve. The rod moves and drives the valve plate to move, thereby realizing the opening or closing of the valve, wherein the valve stem comprises a first comb shaft shaft and a second comb shaft shaft, and the valve plate is formed by a plurality of comb teeth connected in series. A comb-toothed shaft is arranged in series on the front side of the comb shaft to form a nail structure, and the comb-tooth structure is formed on the reverse side of the second comb shaft shaft, and the comb tooth has a socket shaft hole at one end and a triangular shape at the other end. a shank structure, wherein the comb sleeve hole is provided with a key groove, and the comb tooth shaft forms a key connection with the comb tooth, and the two sides of the tines have an upwardly contracting tapered surface structure, When the comb shaft shaft rotates, the comb teeth on the shaft rotate, and when the second comb shaft rotates, the comb teeth on the shaft rotate, and when the first comb shaft and the second comb shaft rotate The valve is closed until the comb teeth of the two touch and the tapered surfaces of the comb teeth fit together , When the first and second comb-tooth comb-shaped shaft rotatable shaft separate comb teeth both when the valve is opened,

a gear train set for controlling the rotation of the comb shaft, the gear train including a first gear disposed on the first comb shaft and a second gear disposed on the second comb shaft at the first Three intermeshing gears are added in series between the gear and the second gear. When any one of the gears rotates, the entire transmission pair can be rotated to control the rotation of the comb shaft.

Advantageous Effects of the Invention: The present invention provides a comb-toothed isolation valve for a sludge pipe. Since the valve stem is opened or closed by the rotation mode, the valve stem does not move axially, and the medium is prevented from being taken. Out of the valve body to avoid odor overflow, and, due to the valve The plate adopts a triangular comb structure with low opening resistance, which makes the opening or closing resistance of the valve small, and because the sealing surface adopts a beveled surface, it has a self-aligning seal, and even in the case of wear, the sealing surface has a self-healing function. Therefore, the valve life cycle is greatly improved, and the valve manufacturing and maintenance costs are very low.

DRAWINGS

1 to 11 are partial structural views of an embodiment of the present invention. 1 is a schematic view of a comb when the teeth are closed (main view), FIG. 2 is a schematic view of the comb shaft 1A and its comb teeth, FIG. 3 is a schematic diagram of the comb shaft 1B and its comb teeth, and FIG. 7 is a comb tooth FIG. 8 is a schematic structural view (left view) when the comb teeth are closed, FIG. 9 is a structural schematic view (left view) when the comb teeth are initially opened, and FIG. 10 is a structural schematic view after the comb teeth are completely opened. Figure 11 is a schematic view showing the gear transmission structure for controlling the rotation of the comb shaft.

In the picture:

1A first comb shaft shaft, 1B second comb shaft shaft; 1C1, 1C2, 1C3 gear shaft;

1A11, 1A12, 1A13, 1A1n keyway;

1A21, 1A22 bearing mounting position, 1A31, 132 sealing position, 1A4 gear mounting position;

2A1, 2A2, 2A3, 2An, 2B1, 2B2, 2B3, 2Bn comb teeth;

2A11 socket shaft hole, 2A11A keyway, 2A12, 2B12 tooth tip, 2A12A, 2B12A cone surface;

3 gear transmission pair, 3A first gear, 3B second gear, 3C1 first intermediate gear, 3C2 second intermediate gear, 3C3 third intermediate gear;

4 valve passages.

Detailed ways

1 to 11 are partial structural views of an embodiment of the present invention. 1 is a structural schematic view (main view) when the comb teeth are closed, FIG. 8 is a structural schematic view (left view) when the comb teeth are closed, and FIG. 9 is a structural schematic view (left view) when the comb teeth are initially opened, FIG. The schematic diagram of the structure after the comb is completely opened. 2 is a schematic view showing the structure of the comb shaft 1A and its comb teeth, FIG. 3 is a schematic view showing the structure of the comb shaft 1B and its comb teeth, and FIG. 11 is a schematic diagram of the gear transmission structure for controlling the rotation of the comb shaft.

1, 2, and 3, in this example, a comb-toothed isolation valve includes a valve body, a valve stem and a valve plate. The valve plate is mounted on the valve stem, and the external force drives the valve stem to move and drive The valve plate moves to open or close the valve. The specific feature is that the valve stem comprises a first comb shaft 1A and a second comb shaft 1B. The valve plate is formed by a plurality of comb teeth, and the comb teeth are arranged in series on the front side of the first comb shaft 1A. In the nail structure, the comb teeth are arranged in series on the reverse side of the second comb shaft 1B to form a nail structure. The figure shows that the comb teeth 2A1, 2A2, 2A3 are mounted in series on the front side of the first comb shaft 1A until 2An, and the comb teeth 2B1, 2B2, 2B3 are connected in series on the second comb shaft 1B to 2Bn.

4 to 7 show that the first comb shaft 1A is provided with key grooves 1A11, 1A12, 1A13, 1A1n. One end of the comb tooth 2A1 has a sleeve shaft hole 2A11 and the other end has a triangular tip tooth 2A12 structure, and the comb sleeve shaft hole 2A11 is provided with a key groove 2A11A, and a comb connection is formed between the comb shaft rod and the comb tooth. FIG. 7 shows that the two sides of the tines 2A12 are in the shape of a tapered surface 2A12A which is contracted upward. When the first comb shaft 1A rotates, the comb teeth on the shaft rotate, and when the second comb shaft 1B rotates, the shaft is driven. The upper comb rotates.

Fig. 8 is a structural schematic view (left side view) when the comb teeth are closed, Fig. 9 is a structural schematic view (left side view) when the comb teeth are initially opened, and Fig. 10 is a structural schematic view after the comb teeth are completely opened. 8 is shown, when the first comb shaft 1A and the second comb shaft 1B are rotated until the comb teeth of the two touch and the tapered surfaces 2A12A, 2B12A on both sides of the comb are attached to each other, the valve is closed; 9 shows that when the first comb shaft 1A and the second comb shaft 1B start to rotate so that the comb teeth of the two are separated, the valve passage will be initially opened; FIG. 10 shows that when the first comb shaft 1A and the first When the two comb shafts 1B continue to rotate so that the comb teeth of the two continue to separate, the valve passage 4 will be fully opened.

4 shows that both ends of the first comb shaft 1A are provided with bearing mounting positions 1A21, 1A22, sealing positions 1A31, 132, and bearings are arranged on the bearing mounting position to mount the shaft on the valve body, and the sealing position is set. The seal acts as a valve body seal. Figure 4 also shows that a gear mounting position 1A4 is also provided at the end of the first comb shaft 1A.

Fig. 11 shows that a gear transmission pair 3 for controlling the rotation of the comb shaft is further provided, and the gear transmission pair 3 includes a first gear 3A provided on the first comb shaft 1A, and is disposed on the second comb shaft 1B. In the second gear 3B, three intermeshing gears 3C1, 3C2, and 3C3 are further provided in series between the first gear 3A and the second gear 3B. The gears 3C1, 3C2, and 3C3 are attached to the valve body via gear shafts 1C1, 1C2, and 1C3, respectively.

The invention suggests that a handle or a rotating wheel can be mounted on the shaft end of any one of the first comb shaft 1A, the second comb shaft 1B, the gear shaft 1C1, 1C2 or 1C3, and any one of manual or electric control When a gear rotates, the entire transmission pair can be rotated to control the rotation of the comb shaft. Achieve multi-point power input to achieve multi-point valve operation.

Claims

A comb-toothed isolation valve for a sludge pipeline, comprising a valve body, a valve stem and a valve plate, wherein the valve plate is mounted on the valve stem, and the external force drives the valve stem to move and drives the valve plate to act, thereby realizing the opening of the valve Or closed, characterized in that the valve stem comprises a first comb shaft and a second comb shaft, the valve plate is formed by a plurality of comb teeth, and the comb teeth are arranged in series on the front side of the first comb shaft shaft. In the nail-carrying structure, the comb-tooth structure is formed by connecting the comb-tooth on the reverse side of the second comb-toothed shaft, the comb-tooth has one end of the comb-shaped shaft hole and the other end has a triangular-tipped structure, and the comb-toothed sleeve is provided with a keyway a combing connection is formed between the comb shaft and the comb teeth, and the two sides of the tines have an upwardly constricted tapered structure, and the first comb shaft rotates to drive the comb on the shaft When the tooth rotates, the second comb shaft rotates to drive the comb teeth on the shaft, and when the first comb shaft and the second comb shaft rotate until the comb teeth of the two touch and both sides of the comb When the tapered surface is fitted, the valve is closed, when the first comb shaft and the second comb shaft rotate, so that both When the valve is to be opened separately comb teeth,

a gear train set for controlling the rotation of the comb shaft, the gear train including a first gear disposed on the first comb shaft and a second gear disposed on the second comb shaft at the first Three intermeshing gears are added in series between the gear and the second gear. When any one of the gears rotates, the entire transmission pair can be rotated to control the rotation of the comb shaft.