CN201246496Y - Triplet commutation slurry valve - Google Patents

Abstract

The utility model relates to a reversing valve, which aims to provide a valve which can realize medium transmission of different flow directions and different media, simplifies the processing pipes, reduces the flow resistance and the leakage of the pipes, and has the advantages of saving investment, reducing energy consumption, and simplifying and facilitating process operations. The technical scheme includes that the reversing valve comprises a valve body, a valve stem capable of linear motion, a valve disc fixed at the top end of the valve stem, and a force-applying mechanism driving the stem in motion, wherein the valve stem is inserted in an inner chamber of the valve body, two feed pipes and a discharge pipe which are mutually communicated are manufactured on the valve body, the two junction portions of the two feed pipes with the discharge pipe in the inner chamber of the valve body respectively form an upper valve seat and a lower valve seat, the two valve seats are equal in size and opposite in direction, central lines of the two valve seats are coincident, the valve disc is positioned between the two valve seats, both of the upper end face and the lower end face of the valve disc are equipped with a sealing face respectively, the sealing faces are respectively matched with the upper valve seat and the lower valve seat, and while the valve stem drives the valve disc in vertical motion, one feed pipe is closed and the other feed pipe is open.

Description

Triplet commutation slurry valve

The utility model relates to a kind of change-over valve, especially carries the selector valve that uses in the pressure pipeline system of strong abrasiveness and corrosivity material.

Background technique

Existing process for making alumina system need be equipped with the valve pipe combination of being made up of a plurality of valves with single keying function, and the various flows that realizes slip is to carrying or different medium is carried; The shortcoming of this kind valve combination is: process pipeline prolongs or process pipeline (bar number) increases, and the quantity of valve increases, and the pipeline flow resistance is increased, and leakage point increases, and the space of installation is strengthened, pipe-line system complexity, trivial operations; Correspondingly investment and energy consumption have been increased.

The model utility content

Technical problem to be solved in the utility model is the deficiency that overcomes the above-mentioned background technology, a kind of improvement of valve is provided, this valve should be able to be realized the conveying of various flows to, different medium, simplify process pipeline, reduce pipeline flow resistance and leakage, and have and reduce investment outlay and cut down the consumption of energy, simplify and make things convenient for the characteristics of technological operation.

The technical solution adopted in the utility model is: triplet commutation slurry valve, comprise valve body, intert body cavity can straight-line valve rod, the force application mechanism of the flap that is fixed on valve stem tip and actuate valve stem motion; Be shaped on two supply pipes and a discharge nozzle of being interconnected on the described valve body, two supply pipes in the body cavity and the handing-over position of discharge nozzle form upper valve base and lower valve base respectively, two valve seats size is identical and in opposite directions and right, and the dead in line of the center line of two valve seats and described valve rod; Described flap is positioned between two valve seats, two end faces up and down of flap are provided with sealing surface, these two sealing surfaces are complementary with upper valve base and lower valve base respectively, so that when valve rod drives flap and moves up and down, close a supply pipe respectively and open another supply pipe.

The valve wall outside of described valve body is shaped on the supporting frame of location valve rod and force application mechanism, and valve rod passed through the valve wall from the supporting frame stretching, extension and extends to body cavity.

Be shaped on the guiding rib parallel on the described supporting frame with valve rod; Also fix a guide plate on the valve rod, the end recesses and the guiding rib of guide plate are slidingly matched, and make valve rod to slide and can not rotate.

Described force application mechanism comprises the gear pair that cooperates with threaded stem and orders about the handwheel that gear pair rotates.

The input end of described supply pipe forms three to five kinds of angles and directions with the center line of its valve seat respectively, so that connect the process pipelines of different input angles and direction.

Use principle of the present utility model is: operator order about the valve rod slippage by the rotating valve handwheel or by machinery, the flap that makes valve stem tip have upper and lower sealing surface coincide with two valve seats respectively, just can reach the switching runner, change the purpose that different medium flows to.

The utlity model has following beneficial effect:

1, because a triplet commutation slurry valve has been concentrated the function of many other valves, thereby can greatly simplify and shorten process pipeline, reduce the quantity of valve on the pipeline, energy efficient has significantly reduced investment.

2, the valve overall structure is tending towards compact, occupies little space, and not only can be installed on less space, and the stroke of finishing two-way keying dwindles, and it is short to finish opening and closing time, opens and closes efficient and conveniently, and manipulation strength significantly reduces.

3, owing to compact structure, the keying stroke is little, and the shaft length size is reduced, and the valve rod rigidity increases, and does not depart from sealing pair (valve seat and the flap) center in guaranteeing to use, and be easy to sealing, and sealing effect is better.

4, valve flowing channel is short, and flow resistance is little, and the pressure medium loss is few.

5, import and export the connecting tube axis and can select to be mounted to multidirectional parallel, vertical or trend that tilts, to adapt to various needs.

Description of drawings

Fig. 1 is one of the utility model embodiment's a main TV structure schematic representation.

Fig. 2 is another usage mode schematic representation of Fig. 1 embodiment.

Fig. 3 is another structural representation of slurry valve shown in Figure 2.

Fig. 4 is the third usage mode schematic representation of Fig. 1 embodiment.

Fig. 5 is the utility model embodiment's two a main TV structure schematic representation.

Fig. 6 is the utility model embodiment's three a main TV structure schematic representation.

Fig. 7 is that the existing parts of process pipeline in the threeway position are provided with schematic representation.

Fig. 8 is the structure for amplifying schematic representation at the flap position of valve rod.

Fig. 9 is the structural representation of the shared commutation dismounting bend pipe blanking of two decomposers of existing process using.

Figure 10 is with the structural representation behind the commutation dismounting pipe among triplet commutation slurry valve replacement Fig. 8.

Figure 11 is that many push-pull valves of existing process using are implemented the structural representation that a plurality of decomposers of parallel pipeline replace blowing.

Figure 12 replaces among Figure 11 structural representation behind many push-pull valves with triplet commutation slurry valve.

Embodiment

This triplet commutation slurry valve comprises valve body, intert body cavity can straight-line valve rod 7, the force application mechanism of the flap 3 that is fixed on valve stem tip and actuate valve stem motion; Be shaped on the supply pipe 1, supply pipe 2 and the discharge nozzle 5 that are interconnected on the described valve body; In the body cavity, the position, boundary of two supply pipes and discharge nozzle forms upper valve base 1-1 and lower valve base 2-1 respectively, and two valve seat sizes are identical and in opposite directions and right, and the dead in line of the center line of two valve seats and described valve rod; Described flap 3 is positioned between two valve seats, two end faces up and down of flap are provided with sealing surface, these two sealing surfaces are complementary with upper valve base and lower valve base respectively, when valve rod drive flap moves up and down, just can close a supply pipe respectively and open another supply pipe simultaneously.

The valve wall of described valve body is externally connected to the supporting frame 8 of location valve rod and force application mechanism, and valve rod passed through the valve wall from the supporting frame stretching, extension and extends to body cavity.Be shaped on the guiding rib 8-1 parallel on the supporting frame with valve rod; Also fix a guide plate 9 on the valve rod, guide plate and guiding rib are slidingly matched, and make valve rod to slide and can not rotate (end recesses and the guiding rib of guide plate are chimeric, have played the spline effect).

Described force application mechanism comprises the gear pair that cooperates with threaded stem and orders about the handwheel 10 that gear pair rotates; The structure of this force application mechanism is identical with existing valve.

The input end of described two supply pipes forms three to five kinds of angles and directions with the center line of its valve seat respectively, so that connect the process pipelines (illustrating by embodiment) of different input angles and direction.

Further specify (F1, F2 and F3 represent slip moving direction respectively among each figure) by the following examples.

Embodiment 1:

Present embodiment has pipeline merging, shortening and runner switching function, can merge, shorten two pipelines, alternately implements opening and closing by arts demand.

In the existing process pipeline, a slurry valve must respectively be installed on two pipelines alternately implement opening and closing (shown in Figure 7, that slurry valve 55 and slurry valve 56 are installed respectively on two pipelines).

Adopt the utility model just can replace two pipelines, two slurry valves alternately to implement opening and closing (shown in Figure 2).

This embodiment also has multiple usage mode, is represented by Fig. 1 to Fig. 4.

Among Fig. 1, the axis of two supply pipe input ends of the present utility model (directly be communicated with two slips and carry delivery side of pump) is in mutual plumbness.

Fig. 2 shows that supply pipe 2 set up extension valve body 16 (90 degree bend pipe) by flange, so the axis of two supply pipe input ends is in parastate.

The effect of valve shown in Figure 3 is identical with Fig. 2; Difference is that two supply pipes all adopt demountable structure, and maintenance and installation is brought convenience.

Valve shown in Figure 4 and Fig. 2 are that the extension valve body 17 that supply pipe 2 places set up is 45 degree bend pipes, so about 135 degree of the axis angle of two supply pipe input ends relatively.

Fig. 1 is to various structures shown in Figure 4, because the charging position is provided with the angle of two slip transfer pumps of multiple connection, brings convenience for user's process pipeline layout.

Embodiment 2:

Show by structure shown in Figure 5; Be characterized in the oblique layout of axis (135 degree) of discharge nozzle 5 input end axis and supply pipe 1 input end; Its application mode is shown by Figure 10.Have the pipeline of simplification, commutation keying function, can the alternately commutation of two pipelines not needed detaching pipelines, commutation opens and closes fast convenience.

In the alumina technology pipe-line system, design is used the alternately blanking respectively of two decomposers; Usual manner is that a shared commutation dismounting bend pipe (shown in Figure 9) is connected two decomposers respectively.This kind mode is operated comparatively complicated; As transforming to decomposer 22 blankings from decomposer 21 blankings, need to start the pneumatic discharging valve 28 of cell wall earlier and close decomposer 21, after treating that slip flows to end from discharge nozzle 27 in the inclined tube 23, dismounting commutation bend pipe 25 is switched to (by dismounting and adpting flange) on the inclined tube 24 with it again, and then the pneumatic discharging valve 29 of startup cell wall is opened decomposer 22 blowings.The whole operation process is time-consuming, effort, efficient is low, manipulation strength is big.After employing the utility model replacement commutation commutation bend pipe (shown in Figure 10), only need just can realize the alternately blanking respectively of two decomposers by startup triplet commutation slurry valve 50.

Embodiment 3:

Show by structure shown in Figure 6, be characterized in the dead in line of discharge nozzle 5 output terminal axis and supply pipe 2 input ends; Its application mode is shown by Figure 12.Have easy operation, prevent to leak outside, commutation in parallel opens and closes function, can press arts demand to a plurality of decomposers that adopt parallel pipeline and implement target decomposer blowing.

In the existing alumina technology pipe-line system, it is (shown in Figure 11 that a plurality of decomposers of many push-pull valves enforcement parallel pipeline commonly used replace blowing; Such decomposer can have many according to producing needs, only draws two among the figure).Mode of operation is; Close push-pull valve 43 and push-pull valve 42; Open push-pull valve 41 and push-pull valve 45, decomposer 21 blowings (pulp flow is to S).Close push-pull valve 41 and push-pull valve 45; Open push-pull valve 43, decomposer 22 blowings.After employing the utility model replacement push-pull valve (shown in Figure 12), only need alternately open or close triplet commutation slurry valve 51, triplet commutation slurry valve 52, just can realize the alternately blanking respectively of two decomposers.Also have cell wall discharging valve 30, cell wall discharging valve 31 among the figure.

In addition, the sealing surface of flap 3 adopts the WC alloy to make, the hardness height (〉=HRC65), media-resistant washes away, denudes; Sealing is reliable, long service life.

Among Fig. 8, the flap of flap 3 lid 3-1 goes up to adopt and connects cover sheet 3-2 (cover plate 3-2 cover after in addition spot welding again), can effectively prevent medium to the washing away of connecting bolt, and is easy in the future dismounting, maintenance to flap.

Claims (5)

1, triplet commutation slurry valve, comprise valve body, intert body cavity can straight-line valve rod (7), the force application mechanism of the flap (3) that is fixed on valve stem tip and actuate valve stem motion; It is characterized in that being shaped on the described valve body two supply pipes (1,2) and the discharge nozzle (5) that are interconnected, two supply pipes in the body cavity and the handing-over position of discharge nozzle form upper valve base (1-1) and lower valve base (2-1) respectively, two valve seats size is identical and in opposite directions and right, and the dead in line of the center line of two valve seats and described valve rod; Described flap is positioned between two valve seats, two end faces up and down of flap are provided with sealing surface, these two sealing surfaces are complementary with upper valve base and lower valve base respectively, so that when valve rod drives flap and moves up and down, close a supply pipe respectively and open another supply pipe.

2, triplet commutation slurry valve according to claim 1 is characterized in that the valve wall of described valve body is externally connected to the supporting frame (8) of location valve rod and force application mechanism, and valve rod passed through the valve wall from the supporting frame stretching, extension and extends to body cavity.

3, triplet commutation slurry valve according to claim 2 is characterized in that being shaped on the described supporting frame guiding rib parallel with valve rod (8-1); Also fixing one on the valve rod has guide plate (9), and the end recesses and the guiding rib of guide plate are slidingly matched, and makes valve rod to slide and can not rotate.

4,, it is characterized in that described force application mechanism comprises the gear pair that cooperates with threaded stem and orders about the handwheel (10) that gear pair rotates according to claim 2 or 3 described triplet commutation slurry valves.

5, triplet commutation slurry valve according to claim 4, the input end that it is characterized in that described two supply pipes form three to five kinds of angles and directions with the center line of its valve seat respectively, so that connect the process pipelines of different input angles and direction.

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