JPS59144871A - Check valve for transferring solid matter - Google Patents

Abstract

PURPOSE:To minimize the pinching of solid matter and eliminate injuries by opening the outflow port of a fluid eccentrically in relation to an inflow port on the side opposite to the side where a valve body is fitted so that the solid matter can quickly pass through the inside with little resistance and without being clogged. CONSTITUTION:A valve chamber 1 has an inflow port 7 and an outflow port 8 and is provided with a main body 10 formed with a valve seat on the opening end of the inflow port 7, a valve body located in the main body 10 and closely contacting the valve seat, and a soft ring 11 fixed to the valve seat. The inflow port 7 is opened on one side of the main body 10 and the outflow port 8 is opened facing it. The outflow port 8 is eccentrically formed in relation to the inflow port 7 so that the solid matter and liquid can pass smoothly and quickly behind the valve body. Therefore, the solid matter and liquid somewhat directed toward the flow direction by means of the flexibility of the bent portion of the valve body 4 is smoothly discharged through the outflow port 8 located below.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to check valves used to transport solid materials using liquid as a carrier medium, and more particularly to check valves used to transport sensitive solid materials. Regarding stop valves.

A. Prior art In FIG. 1, a conventional check valve for transferring solids is not shown.

As shown in FIG. 2, the valve body 4 of this check valve is a plate material embedded in a rubber-like elastic body integrated with a seven-lunge packing. This reverse dz butt is mainly caused by the third
It is used in the solids transfer device shown in FIGS. The solid material transfer device shown in FIGS. 3 and 4 extracts air 814 from the vacuum tank 1, sucks the solid material into the vacuum tank 1 together with the liquid, and pressurizes the air into the vacuum tank 1. The solids are discharged together with the liquid and transported to a predetermined location. Check valve 2
．． 3 is connected to the suction and discharge sides of the vacuum tank 1. The 2 check valves on the suction side open only during the suction I stage to allow solids and liquid to pass through, and the 3 check valve on the discharge side allows solids and liquid to pass only during the upper discharge stage. let It is extremely difficult to close these check valves 2.3 when no solid matter such as fish is caught.

If solids are passing through the check valve 2.3 when the valve is closed,
As shown in FIG. 1, the valve body 4 pinches the solid object and is closed. In this condition, the solid material is damaged like a bacterium, which loses its commercial value.

The mixing of severely damaged solids into the solids being transferred significantly limits the utility of the solids transfer device.

Furthermore, it is quite time-consuming to sort out damaged solids from the solids after they have been transferred.

As shown in FIG. 2, the inversion valve shown in FIG. 1 includes a valve body 4 whose core plate surface is covered with a rubber-like supple body. In order to prevent solid objects from being pinched between the valve body 4 and the valve seat 5 and causing damage, solid objects can be removed by changing the rubber-like +iM'I material 6 on the front body surface to a thick and flexible material. It is speculated that the damage can be reduced. However, when the 4-piece valve body is in the open state, solid matter will rub against the surface and pass through, so if the surface is flexible, the surface of the valve body will be severely abraded. is locally concentrated and causes leakage when the valve is closed. For this reason, a valve body with a flexible surface is of no practical use.

To reduce the damage that solid objects receive when passing through the check valve, either prevent solid objects from being damaged even if they are caught, or minimize the frequency of solid objects being caught. Either.

The present invention minimizes damage to solid objects in the latter manner due to its simple structure.

In the check valve shown in FIG. 1, solid objects cannot pass smoothly due to low resistance, and solid objects remain in the check valve for a long time. ? There is a high frequency of solid objects being caught between r.

This is compared to solid matter flowing in a straight pipe.
This is because check valves experience resistance at the valve body.

In other words, the direction of movement of solids passing through the reverse 11-valve is slightly bent in the F direction when passing through the valve body, and after passing over the valve body, the solid object is slightly bent in the [direction] in the area behind the valve body where vortices are likely to occur. It is converted and flows into the stream 11. In particular, in check valves, the valve body is forcibly opened and closed depending on the flow direction of the liquid, that is, due to the energy of the interlocking liquid, so the effect of the liquid receiving resistance from the valve body in the open state is suppressed by the Shinai (shinai). As long as the liquid pushes the valve element to open the valve, the liquid and solids will encounter resistance from the valve element and the flow direction will change.The solids whose flow direction has been changed by the valve element will have no history. The liquid flow behind the valve body is changed direction and flows into the outflow 11.The liquid flow behind the valve body generates a vortex flow 5.
○ 8. Objective 1-1 of the present invention is to prevent solid matter from flowing out due to locally stagnant state. It is an object of the present invention to provide a check valve for transferring solids, which can quickly pass through the valve without clogging, thereby minimizing jamming of solids and eliminating scratches.

C1 configuration Embodiments of the present invention will be described below based on the drawings.

The check valves shown in FIGS. 5 and 6 are primarily used in the solids transfer apparatus shown in FIGS. 3 and 4.

This check valve is connected to the inlet lower and the outlet 8 or 15)J []
A main body 10 having a valve chamber 9 with a closed valve chamber 9 and a valve seat formed at the open end of the inflow 7; A soft ring 11 is fixed to the soft ring 11.

In the main body 10, an inflow +17 is opened 11 on the C side, and a flow t1 is opened 1-1 opposite to this inflow 1-17.

3. The center lines of the inflow 117 and the flow 11 and the outflow 18 are not perfectly straight. In Figure 5, flow 11
The opening 11 is eccentric to the toga compared to the inlet 1) 7. That is, the outflow 118 is equal to the inflow +1 such that solids and liquids pass smoothly and quickly behind the valve body.
It is eccentric with respect to 7. Therefore, in an example where the outflow 1) 8 is attached to the valve body 4 or the main body 10, in FIG.
IIU and biased towards the opposite side.

In Figure 5, due to the +Jli property of the 4-bent portion of the valve body,
Solids and liquids whose flow direction is slightly upward are: h K fV'/l? ? do? lt /It l-'
, 187I-Rasno, -x nittt: /1.1.

As shown in FIG. 5, the valve body 4 has an end 11 pivotably attached to the main body so as to be freely bendable.

The valve body 4 includes six phases 12 in the form of a hard plate made of metal or the like, and this core phase 1.
2, four parts of the rubber-like elastic body 6 extend upward, and this daughter length part is fixed to a detachable lid 13 attached to the main body 10.

The removable lid 13 is screwed onto the flange 15 of the body handle 11 which is opened at the top of the main body so that the valve body 4 can be easily inserted and removed. .

The soft ring 11 has the flexibility to easily deform itself when a solid object is sandwiched between them, and the bullet V1 which is neutral and returns to its original shape when a solid object is sandwiched between them. It is formed into an annular shape with a thickness that allows the valve to close without water leakage, and is fixed to the valve body contact surface of the valve seat.

The thickness and flexibility of the soft ring 11 are adjusted to optimal values depending on the size and hardness of the solid material to be transferred. Usually, when the solid proboscis to be transferred is a fish, the thickness of the soft ring 11 is as follows:
Preferably, it is determined to be about 3 to 50 mm.

The material of the soft ring 11 preferably has closed cells.
A synthetic resin foam with a soft, non-foamed layer on its surface is used.

The soft ring 11 is formed so that its inner diameter is equal to or approximately equal to the inner diameter of the inflow D7.

Fig. 8 does not show another check valve manufactured by Hq. This check valve is connected to the detachable lid 13 or the main body 1 via the handle 16 and the vise 17.
On the surface of the valve body 4, a soft plate 18 having a thickness of approximately the same as that of 71 is attached to the surface of the valve body 4.
Iji is being treated.

As shown in FIGS. 8 and 9, the soft plate 18 is fixed to the surface of the valve body 4 with a push plate 19 such as a thin metal plate. A screw stud 2o is fixed at the center of the push plate 19, and this screw rod 20 passes through the valve body 4 and is screwed onto the back surface of the valve body 4.

The reverse valve with this structure has a handle 16 and a detachable lid 13.
from the main body, remove the screws and remove the soft plate 18,
After fixing the new soft plate 18, the detachable lid 13 is fixed. Since this check valve pinches solid objects between the soft ring 11 and the soft plate 13, damage to the solid objects can be minimized.

As shown in FIGS. 9 and 10, the soft plate 13 and the holding ring 11 are arranged so that the soft parts of the holding plate 13 and the holding ring 11 are in contact with each other to clamp the solid object. It is formed smaller than the inner diameter of 11.

The soft ring 11 preferably has a slightly tapered tip as shown in FIG. 10, so that it is easily deformed when a solid object is clamped.

As shown in FIG. 11, the valve body 4 is attached to and detached from the main body 10 in a bendable manner via a hinge 21 (a).
[It is Geno. The valve body 4 of this structure has its own white 11
7, it is closed by fluidization during backflow.

D. Effect In the reverse valve of the present invention, the liquid outflow [-1 is eccentric to the side opposite to the mounting side of the C2 valve body with respect to the inflow 11. For this reason, the passage of the valve body ++: "The solids and liquids whose bfc movement direction has been slightly changed by the valve body 1 are the same as that of the b1 body." One point is inserted into the person 11 without any turbulence.For this reason, unlike the conventional non-return check, the stagnation caused by the vortex at the back of the valve does not occur. The liquid passes through the reverse 11 valve extremely smoothly and quickly with little resistance.Therefore, it does not stagnate in the 1-pass type or reverse valve, and the probability of it being caught by the valve body when the valve is closed is minimized. The damage f4 of solids can be significantly reduced by 1.The conventional inversion valve, in which the outflow 11 and the 016 person 11 are opened in a white line shape, has a localized vortex J12 & flowing behind the valve body. Eliminate stagnation,
This stagnation QC prevents solids from quickly coming out and stagnates behind the valve itself, and the solids that temporarily stagnate behind the valve body get caught between the valve body and valve seat due to the backflow of liquid when the valve is closed. It was damaged. jYu1 [-As mentioned before, the valve is opened and closed by the liquid flow, so when the valve is closed, it is slightly reversed in the reverse face valve and is completely closed, so once it passes through the valve body. Solid matter that stagnates behind the valve body also gets caught and damaged by the valve body when the valve is closed.

The unexploded IJ increases the flow rate of solids behind the valve body and significantly shortens the time it takes for solids to pass through the valve body. This has the effect of significantly reducing the proportion of solids that are damaged.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of a conventional reverse 1 valve for transferring solids, Figure 2 is a front view of the valve body of the reverse F] valve shown in Figure 1, and Figures 3 and 4 are reverse upwards. 5 is a sectional view showing an example of the use of the valve, FIG. 5 is a sectional view of an inverted D-valve showing an embodiment of the present invention, and FIG. 6 is a sectional view of the inverted 11-valve shown in FIG. 5 from the outflow 11 side. ,ta [1
: Top view, Figure 1 shows the position of inflow LJ and outlet [1] Fig. 9 is a perspective view showing the soft plate, Fig. 10 is a perspective view of the soft ring, and Fig. 11 is a cross-sectional view of the reverse valve, with no examples shown. 1. Vacuum tank; 2.3...Reverse valve, 4...-fr body, 5...Valve seat, 6...Rubber-like neutral body, 7...Inflow II,
8. Outflow 1.9. Sound valve chamber, 10. Main body, 11.
Soft ring, 12... Core, 13... De-doubling lid, 14... Outlet, 15... Flange, 16... Handle, 17...
Vise, 18...Soft plate, 19...Pushing plate, 20...Slip plate, 21...Hinge, Applicant: Kyoei Zoki Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 5 Figure 6 Figure 8 Figure 9 Figure 10 Figure 11 Figure 3

Claims (1)

[Claims] (1) It has an open valve chamber such as an inflow (1) and an outflow (1). One end of the valve body is pivotably attached to the main body so that it can be bent freely, and when the valve body is bent, it closes tightly against the valve seat, and when it is separated from the valve seat, it closes. In a check valve configured to open, the flow 11 is opened eccentrically to the side opposite to the valve body mounting side relative to the inflow 1, and the valve body A check valve for transferring solids, characterized in that it is configured so that solids and liquid whose flow direction has been changed at 11 or 9υ1 are discharged. The special M'F consists of 6 phases and a rubber-like elastic body that covers this core material, and the valve body is attached to the main body through the rubber-like elastic body so that it can freely move 151 times.
+: l'J range Check valve for transferring solids as described in item (1).