CN204493848U - Effluent discharge buoyancy control valve - Google Patents

Abstract

The utility model discloses a sewage discharge buoyancy control valve, which comprises a valve body pipe, a port of the valve body pipe forms a first water inlet, and a connecting pipe for connecting a sewage discharge pipe is arranged inside the first water inlet. One port of the connecting pipe located in the valve body pipe is provided with a diversion sealing hole to communicate with the valve body pipe; the middle part of the valve body pipe is provided with a number of drainage holes, and the other port of the valve body pipe forms a second water inlet; The other end of the valve body pipe is provided with a buoyancy column, and the end of the buoyancy column close to the connecting pipe is tapered, that is, a sealing cone is formed. The sewage discharge buoyancy control valve uses the buoyancy of the rising liquid level to push the buoyancy column up, and blocks the discharge port through the sealing cone on the buoyancy column to reduce or close the sewage discharge flow. The gravity will automatically open the seal of the discharge port, so as to realize automatic adjustment. When the liquid level controller fails, it can automatically reduce the discharge flow and prevent the sewage tank from overflowing and polluting the environment.

Description

Sewage discharge buoyancy control valve

technical field

The utility model relates to a control valve, in particular to a sewage discharge buoyancy control valve.

Background technique

At present, the sewage bottom valve used in the sewage discharge tank of the factory is generally a one-way valve, which is installed vertically at the bottom of the sewage discharge tank. In order to realize the control of sewage discharge, a liquid level controller is generally installed at the bottom of the sewage discharge tank. The liquid level controller detects the sewage liquid level in the sewage discharge tank, thereby controlling the opening size of the one-way valve. However, if the liquid level controller fails, the action of the sewage bottom valve cannot be controlled, which will cause sewage to overflow and pollute the environment.

Utility model content

In order to overcome the above defects, the utility model provides a sewage discharge buoyancy control valve, which can automatically reduce the discharge flow when the liquid level controller of the sewage discharge tank fails, and prevent the sewage from overflowing and polluting the environment.

The technical solution adopted by the utility model in order to solve the technical problem is: a buoyancy control valve for sewage discharge, including a valve body pipe, a port of the valve body pipe forms a first water inlet, and a utility valve is arranged in the first water inlet. For the connecting pipe connecting the sewage discharge pipe, the connecting pipe is located at a port in the valve body pipe and is provided with a diversion sealing hole to communicate with the valve body pipe; the middle part of the valve body pipe is provided with a number of drainage holes, and the valve body The other port of the pipe forms a second water inlet; the other end of the valve body pipe is provided with a buoyancy column, and the end of the buoyancy column near the connecting pipe is tapered, that is, a sealing cone is formed.

As a further improvement of the utility model, the other end of the buoyancy column is cylindrical.

As a further improvement of the utility model, the buoyancy column is a PP hollow column, which is beneficial to increase the buoyancy.

As a further improvement of the utility model, the valve body pipe is a PVC pipe.

As a further improvement of the utility model, the connecting pipe is a PVC pipe.

The beneficial effects of the utility model are: the sewage discharge buoyancy control valve uses the buoyancy of the rising liquid level to push the buoyancy column up, and blocks the discharge port through the sealing cone on the buoyancy column, so as to reduce or close the sewage discharge flow. After the liquid level drops, it will automatically open the seal of the discharge port due to the gravity of the buoyancy column, so as to realize automatic adjustment. When the liquid level controller fails, it can automatically reduce the discharge flow and prevent the sewage tank from overflowing and polluting the environment.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of the utility model.

In conjunction with the accompanying drawings, the following descriptions are made:

1——Valve body pipe 2——First water inlet

3——Connecting pipe 4——Sealing hole for diversion

5——Drain hole 6——Second water inlet

7——Buoyancy column

Detailed ways

A preferred embodiment of the present utility model will be described in detail below in conjunction with the accompanying drawings. But the scope of protection of the present utility model is not limited to the following examples, that is, all simple equivalent changes and modifications made with the scope of the utility model patent application and the content of the description are still within the scope of the utility model patent.

As shown in Figure 1, a buoyancy control valve for sewage discharge includes a valve body pipe 1, a port of the valve body pipe forms a first water inlet 2, and a connection for connecting a sewage discharge pipe is provided in the first water inlet Pipe 3, one port of the connecting pipe located in the valve body pipe is provided with a diversion sealing hole 4 to communicate with the valve body pipe; the middle part of the valve body pipe is provided with a number of drainage holes 5, and the other port of the valve body pipe A second water inlet 6 is formed; the other end of the valve body pipe is provided with a buoyancy column 7, and the end of the buoyancy column near the connecting pipe is tapered, ie forms a sealing cone. Preferably, the other end of the buoyancy column is cylindrical, and the buoyancy column is a PP hollow column, which is beneficial to increase buoyancy; the valve body pipe is a PVC pipe; the connecting pipe is a PVC pipe.

When in use, fix the sewage discharge pipe first, then install the buoyancy control valve at the end of the sewage discharge pipe, and keep the buoyancy control valve vertical to the sewage liquid level in the sewage discharge tank, preferably installed in the middle of the sewage discharge tank up position. Sewage enters the buoyancy control valve from the sewage discharge pipe, and is discharged from the drain hole 5 on the buoyancy control valve. At the same time, the sewage in the sewage discharge tank enters the buoyancy control valve through the second water inlet 6, and the buoyancy column 7 Suspended on the liquid surface of sewage by corresponding buoyancy. If the liquid level controller of the sewage discharge tank fails, and the sewage liquid level in the sewage discharge tank rises, the buoyancy column 7 will rise with the sewage liquid level due to buoyancy until the sealing cone of the buoyancy column is blocked to the connecting pipe 3-port In the diversion sealing hole 4 inside, reduce or close the water inlet of the buoyancy control valve, so as to achieve the purpose of reducing or closing the sewage discharge, and prevent the environmental pollution caused by the overflow of sewage when the liquid level controller fails.

Claims (5)

1. A sewage discharge buoyancy control valve, comprising a valve body pipe (1), a port of the valve body pipe forms a first water inlet (2), characterized in that: the first water inlet is provided with a valve for connecting sewage The connecting pipe (3) of the discharge pipe, which is located at a port in the valve body pipe, is provided with a diversion sealing hole (4) to communicate with the valve body pipe; the middle part of the valve body pipe is provided with a number of drainage holes (5 ), the other port of the valve body pipe forms a second water inlet (6); the other end of the valve body pipe is provided with a buoyancy column (7), and the end of the buoyancy column near the connecting pipe is tapered. 2. The sewage discharge buoyancy control valve according to claim 1, characterized in that: the other end of the buoyancy column is cylindrical. 3. The sewage discharge buoyancy control valve according to claim 1, characterized in that: the buoyancy column is a PP hollow column. 4. The sewage discharge buoyancy control valve according to claim 1, characterized in that: the valve body pipe is a PVC pipe. 5. The sewage discharge buoyancy control valve according to claim 1, characterized in that: the connecting pipe is a PVC pipe.