Valve for vacuum sewer systems

 

(57) Abstract:

The invention relates to valves that are intended for washing by water jet vacuum sewer system. An object of the invention is to create a simple design implementation valve, which would be compact, cheap and have a long service life. The valve includes a casing with an inlet pipe section end-to-end flow and outlet pipe and an actuator for opening and closing the valve. The actuator is a movable valve body with a slightly inclined to the axis of the first sealing surface, which extends along the periphery of the valve body until the cylindrical part and the second sealing surface is vertical with respect to the direction of flow through the valve. The first sealing surface based on the corresponding inclined saddle, which is located on the ledge of the casing of the valve, and this saddle is behind the inner wall section end-to-end flow, and the second sealing surface is closely based on the corresponding cylindrical upper part of the casing of the valve. 7 C.p. f-crystals, 3 ill.

The present invention relates to a valve, and specifically the output pipe, a plot of end-to-end flow and outlet pipe, and an actuator for opening and closing the valve.

Sewage from toilets contain such particles, such as paper and excrement, so it is extremely important that the valve of the aforementioned type has been designed in such a way that the particles do not accumulate on the inside of him and did not violate his work. Of greater significance is the simplicity and low cost of these valves in the production and operation, the speed with which they are opened and closed, waterproof, long service life, as well as the fact that they are designed in such a way that when used they produce little noise.

The closest analogue to the claimed invention is a valve for vacuum sewer systems, in which the area of the through passage made of an elastic material, which is compressed to close the valve (application France 2366186, B 65 F 5/00, 1978). This valve design meets the above requirements for a small segment, because the durability of this valve is very small due to rapid wear of the elastic section, and therefore requires a significant amount of repair work. In addition, this clamav which focuses on the reduction of noise from toilets United vacuum sewer systems. The problem is solved through the use of the second valve to intake more air, United with the above-described valve, which is washed with water, resulting in reduced suction effect. Thus, decreases the noise from the toilet and increases the rate of wastewater from the sewage system, but this solution is very complex and includes a large number of components, which occupy a significant place and the production of which is expensive. This solution also requires additional holes in the lavatory for the supply of air, which complicates the category fire hazard areas. It is also hard to coordinate the work of these two valves, which leads to the accumulation of material in the valve, and a drainage pipe from the toilet. In addition, intake of additional air pipe is used, which passes through the wall behind the toilet and makes a noise that is transmitted into the dressing room or the next room.

The present invention was based on the task of creating a simple design implementation valve for vacuum sewer systems, which would be compact, cheap and have a long bonnet valve with inlet pipe, a plot of end-to-end flow and outlet pipe, and an actuator for opening and closing the valve according to the invention, the actuator for opening and closing the valve is a movable valve body with a slightly inclined to the axis of the first sealing surface, which extends along the periphery of the valve body until the cylindrical part and the second sealing surface is vertical with respect to the direction of flow through the valve, however, the first sealing surface based on the corresponding inclined saddle, which is located on the ledge of the casing of the valve, and this saddle is behind the inner wall section end-to-end flow and the second sealing surface is closely based on the corresponding cylindrical upper part of the casing of the valve.

The valve body may be made in the form of a bottle or spoon, with its convex surface facing to the inlet pipe and the edges of this spoon to form a first sealing surface of the valve body.

It is desirable that the cylindrical upper part of the casing of the valve corresponded to the second cylindrical sealing surface is cylindrical to the USU valve, can be made in the form of springs and device type "piston-cylinder", which is driven by vacuum.

The piston device type "piston-cylinder" is connected to the valve body by means of the cylindrical part, which is attached can be moved within the corresponding cylindrical part of the casing of the valve.

The cylindrical part of the casing of the valve is supplied located directly above the outlet pipe hole for supplying additional air when the valve body is in the open position.

The opening can be fitted with a valve or throttle valve for regulating the supply of additional air.

Hole for supplying additional air may be connected to an air channel with a silencer.

Hereinafter the invention is explained in the description of specific examples of its implementation with reference to the accompanying drawings, on which:

Fig. 1 depicts a General scheme of the valve according to the invention (longitudinal size);

Fig. 2 is another embodiment of a valve according to the invention, with a pipe for the secondary air and exhaust silencer;

Fig. 3 - valve shown in Fig. 2, monticano, the inlet pipe 2 and the outlet pipe 3, as well as from the housing 4 of the valve driven by the actuator 5 for opening and closing. Inlet and outlet nozzles 2, 3 are preferably provided with flanges or other connecting devices 6, 7 for connecting the valve to the toilet or similar devices through a sewer pipe 8 or similar device.

The actuator 5 for opening and closing the valve is a movable housing 4 of the valve with a slightly inclined to the axis of the first sealing surface 9, which extends along the periphery of the housing 4 of the valve until the cylindrical part and the second sealing surface 10 is vertical with respect to the direction of flow through the valve, however, the first sealing surface 9 based on the corresponding inclined seat 16, which is located on the ledge of the casing 1 of the valve, and this saddle is behind the inner wall 36 of the site 11 end-to-end flow and that the second sealing surface 10 is closely based on the corresponding cylindrical upper part 17 of the casing 1 of the valve.

The housing 4 of the valve, which in the drawing is shown in the closed position, has designed the cover 1 valve, and the convex side is directed to the inlet pipe 2, while the concave portion facing in the opposite direction to the outlet nozzle 3, and the edges of this spoon to form a first sealing surface 9. Part of the housing 4 of the valve, which has the shape of a spoon, is connected with the vertical cylindrical portion 12, and a cylindrical part 12 as well as edge or surface 13 of the chassis 4 valve type spoons, provided with grooves for the sealing elements 14, 15, which are in connection sealing elements and grooves for them) to provide the necessary seal housing 4 of the valve. The sealing element 14 rests on the inclined seat 16 on a plot of 11 end-to-end flow of housing, when the housing 4 of the valve is in the closed position, as shown in Fig. 1, and thereby ensure the sealing of the casing 1 on this site. The cylindrical upper part 17 of the casing 1 of the valve corresponds to the second sealing surface 10 of the cylindrical part of the housing 4 of the valve and is made with the taper pointing down. The saddle 16 is formed with a projecting part of the casing 1 of the valve and passes, as shown in Fig. 1, in a slightly inclined position upward along the periphery of the casing 1 until until it abuts Zilina made with a slight taper, downward, which provides additional pressing of the sealing element 15, which creates an additional seal when the housing 4 of the valve is in the closed position.

The actuator 5 of the valve is made in the form of a spring 20 and the device type "piston-cylinder", consisting of a piston 18 and cylinder 19, 21 and which is driven by vacuum. The housing 4 of the valve is connected with the piston 18 through the cylindrical part 22, which is attached can be moved within the corresponding cylindrical part 24 of the housing 1 of the valve. On the other hand, the piston 18 is mounted for movement upward along the inner surface of the cylinder 19 and the seal 23 at the inner surface of the cylinder 19. The spring 20 is located between the wall of the valve and the top 25 of the cylinder 19 and is designed to push the body 4 of the valve down in the "closed" position, i.e. to the saddle 16. The spring 20 is held in a predetermined position of the cylinder 21, an employee acting down the cylindrical holder. This cylinder 21 also functions as a guide for the connecting cylindrical part 22 between the piston 18 and the housing 4 of the valve and increases the resistance of the piston 18 when it is in motion.

On sewer systems and in this case it is convenient, a valve was driven by the vacuum through a pipe or similar device (not shown) which connects with the casing 1 of the valve with one hand through the nipple 29, and through on-off valve "open/closed" (not shown) connected with a source of vacuum, for example, a sewage pipe 8. When the piston 18 moves upward under the action of vacuum in the cavity 26 of the cylinder 19, the air passes inward through the opening 37 in the bottom of the cylinder and the valve opens. During the reverse movement of the valve closes under the action of the spring 20, when the cylindrical portion 22 with a source of vacuum "rises" closing the valve. Then the air is sucked in through the nipple 29 and enters the cavity 26 in the upper part of the piston 18, while the air on the opposite side of the piston 18 is displaced from the cavity 26 through the openings 37.

Of course, the valve in accordance with the invention can be operated also under the influence of a medium under pressure, but in this case, the pressure must be submitted through the hole 37 in the bottom of the valve, and the release must be made through the nipple 29.

In the framework of the present invention can be used another type Pref is modified by adding auxiliary input socket 27 for supplying additional air and muffler 28.

As mentioned above, the problem of using toilets with vacuum associated with noise that occurs when opening the exhaust valve of the toilet. In accordance with the present invention, this noise can be substantially reduced when the cylindrical part 24 of the housing 1 of the valve is provided above the outlet pipe 3 hole 30 for supplying additional air when the housing 4 of the valve is in the open position. For this purpose, the supply of supplementary air in this embodiment, the valve is performed via a built-in a separate pipe 27 for supplying additional air and the hole 30 in the cylindrical part 24 of the casing 1 valve, located directly above the outlet pipe 3 of the valve and which in this case is the outlet pipe 27. The pipe 27 for supplying air (hole 30) preferably can be provided with an adjustable slide valve (not shown) or the throttle valve 31.

In Fig. 2 shows that the aperture 30 is opened when the housing 4 of the valve is in the open position, and a part of the housing 4 of the valve, made in the form of spoons, deflects the flow of air, which is sucked inside, and sends it to the outlet nozzle 3. So Asparagine below the hole 30 so that hole is not connected with a plot of 11 end-to-end flow, when the body 4 of the valve is in the closed position.

Designed so the hole 30 significantly reduces the noise level, but for its further reduction can be a silencer 28, which is connected with the casing 1 valve air channel 32, in this case a pipe 27 leading to the audio filter 33. Thus, air is drawn through the filter 33, passes through the channel 32 of the socket 27 and supplied to the hole 30.

The main advantage of the invention is that it provides a very simple, compact and cheap off valve, which has a long service life. The valve is made of plastic "RUM", was accelerated testing, corresponding to more than 700,000 operations of closing and opening, after which it found no significant wear or defects.

In fact, this valve is very compact and small, as seen in Fig. 3. This drawing shows that the valve can easily be mounted behind the toilet, however, it provided easy access for dismantling and installation. The air that is sucked into the valve and into the chamber 35 of the bowl passes through atwan additional air which is mounted outside of the toilet, and air is drawn into it through a tube for air intake, which passes through the wall of the toilet, this is the noise that penetrates into the dressing room and in other rooms. The solution which is found in this invention, eliminates the need for additional tube for air intake, because the air, as mentioned above, passes through a hole in the bottom of the bowl, thus eliminating the problem of high grade, fire hazard.

The invention as defined in the claims, is not limited to the illustrated and described above, the housing 4 of the valve in the form of a spoon. Thus, the valve body may have a different design, however, the surface 13 of the housing 4 of the valve with the sealing element 14, if required, and the cylindrical part 12 of the housing 4 of the valve and the sealing element 15, if required, should remain unchanged. The design of the valve body in the form of a bottle or a spoon is needed, if the valve is provided with a separate inlet for the secondary air, as shown in Fig. 2, it should be possible to supply air and channel it to the exit of the valve as shown is on air the valve body may have a different shape, as mentioned above, in particular, for example, be flat or biconvex. In addition, the valve may be made of other materials than one of the above, and can also be applied to other vacuum systems.

1. Valve for vacuum sewer systems comprising a valve casing with an inlet pipe section end-to-end flow and outlet pipe, and an actuator for opening and closing the valve, wherein the actuator for opening and closing the valve is a movable valve body with a slightly inclined to the axis of the first sealing surface, which extends along the periphery of the valve body until the cylindrical part and the second sealing surface is vertical with respect to the direction of flow through the valve, however, the first sealing surface based on the corresponding inclined saddle, which is located on the ledge of the casing of the valve, this saddle is behind the inner wall section end-to-end flow, and the second sealing surface is closely based on the corresponding cylindrical upper part of the casing of the valve.

3. The valve under item 2 or 3, characterized in that the cylindrical upper part of the casing of the valve corresponds to the second sealing surface of the cylindrical part of the valve and is made with the taper pointing down.

4. Valve according to any one of paragraphs.1 to 3, characterized in that the drive, indicating the movement of the valve body, made in the form of springs and device type piston-cylinder, which is driven by vacuum.

5. The valve p. 4, characterized in that the piston device type piston-cylinder connected to the valve body by means of the cylindrical part, which is attached can be moved within the corresponding cylindrical part of the casing of the valve.

6. Valve according to any one of paragraphs.1 to 5, characterized in that the cylindrical part of the casing of the valve is supplied located directly above the outlet pipe hole for supplying additional air when the valve body is in the open position.

7. The valve p. 6, characterized in that the aperture is equipped with a damper or butterfly valve for regulating the supply of additional air to the air channel with a silencer.

 

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