CN111750165A

CN111750165A - Water drainage choke valve

Info

Publication number: CN111750165A
Application number: CN202010566012.6A
Authority: CN
Inventors: 赵杨杨; 曾琦
Original assignee: Shanghai Rongde Yicun Mechanical And Electrical Co ltd
Current assignee: Shanghai Rongde Yicun Mechanical And Electrical Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-10-09

Abstract

The invention is suitable for the technical field of fire-fighting equipment, and provides a drainage choke valve; the method comprises the following steps: the valve body is internally provided with a U-shaped pipeline in a run-through manner; the valve body is provided with a one-way device for controlling the one-way connection and disconnection of the U-shaped pipeline, and a floating ball for controlling the connection and disconnection is arranged in the one-way device. The invention prevents air from entering the official mesh, and can discharge accumulated water in the official mesh, thereby well preventing the corrosion in the official mesh.

Description

Water drainage choke valve

Technical Field

The invention relates to the technical field of fire fighting equipment, in particular to a drainage choke valve.

Background

The smoke-pumping fire-detecting alarm device is used for monitoring and alarming the fire smoke concentration of each cargo hold of a ship, and for the purpose, a set of pipe network system is needed to continuously pump smoke from all cargo holds to be detected and send the smoke into an alarm box of the fire-detecting alarm device. The pipe network of prior art mainly uses ordinary carbon steel pipe, because the atmospheric moisture of environment is great, so every pipeline is long-term in the air exhaust process, forms ponding easily, leads to the pipeline to rust, influences pipe life.

Therefore, a drainage choke valve is needed to be designed and installed at the lowest position of the pipeline, the drainage choke valve is used for draining accumulated water in the pipeline, and gas can be prevented from entering the pipeline.

Disclosure of Invention

The present invention is directed to a drain choke valve to solve the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

a drain choke valve comprising: the valve body is internally provided with a U-shaped pipeline in a run-through manner;

the valve body is provided with a one-way device for controlling the one-way connection and disconnection of the U-shaped pipeline, and a floating ball for controlling the connection and disconnection is arranged in the one-way device.

As a further scheme of the invention: the floating ball is movably arranged in the cavity in the one-way device up and down.

As a still further scheme of the invention: the one-way device is internally provided with a cavity for installing the floating ball, and the floating ball falls on a sealing surface of the cavity.

As a still further scheme of the invention: the surface of the floating ball and the sealing surface are both smooth surfaces.

As a still further scheme of the invention: and the input end of the one-way device is connected with the output end of the U-shaped pipeline.

As a still further scheme of the invention: the one-way device is detachably arranged in the mounting groove on the valve body.

As a still further scheme of the invention: the one-way device is installed on the valve body through a bolt.

As a still further scheme of the invention: the one-way device is clamped in the mounting groove.

As a still further scheme of the invention: the valve body is provided with a water outlet which is communicated with the U-shaped pipeline, and the water outlet is provided with a sealing cover.

Compared with the prior art, the invention has the beneficial effects that: the invention prevents air from entering the official mesh, and can discharge accumulated water in the official mesh, thereby well preventing the corrosion in the official mesh.

Drawings

Fig. 1 is a schematic view of a first state of the drain choke valve.

Fig. 2 is a schematic view of a second state of the drain choke valve.

In the figure: a valve body-1, a U-shaped pipeline-2, a one-way device-3, a floating ball-4, a water outlet-5 and a sealing cover-6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a structure diagram of a water discharge choke valve provided in an embodiment of the present invention includes: the valve comprises a valve body 1, wherein a U-shaped pipeline 2 is arranged in the valve body 1 in a penetrating manner;

the valve body 1 is provided with a one-way device 3 for controlling the one-way on-off of the U-shaped pipeline 2, a floating ball 4 for controlling the on-off is arranged in the one-way device 3, and the floating ball 4 is movably arranged in a cavity in the one-way device 3 up and down.

In the embodiment of the invention, when the smoke alarm device works normally, the fan pumps smoke in the cargo hold to the alarm box, the pipeline is in a negative pressure state due to the air pumping state, and the input connecting end of the U-shaped pipeline 2 is connected to the pipeline, so that the inside of the U-shaped pipeline 2 is in a negative pressure state, and the floating ball 4 cuts off the U-shaped pipeline 2 under the action of pressure and self gravity to prevent outside air from entering the inside of the pipeline; when the accumulated water in the pipeline does not reach a certain value or no accumulated water exists, the floating ball blocks the air outlet to prevent outside air from entering the pipeline; when the accumulated water in the pipeline reaches a certain height, the floating ball automatically floats, so that the function of automatic drainage is achieved.

Simultaneously set up U type pipeline 2 into the U type, can have a certain amount of ponding for a long time in the U type pipeline 2 for prevent gas admission, after the ponding liquid level risees, floater 4 floats, and the ponding part is discharged, thereby ensures smoking alarm device's normal work.

And the input end of the U-shaped pipeline 2 is connected to a system pipeline. The inner part of the one-way device 3 is provided with a cavity for installing the floating ball 4, the floating ball 4 falls on a sealing surface of the cavity, and the input end of the one-way device 3 is connected with the output end of the U-shaped pipeline 2 and used for controlling the on-off of the U-shaped pipeline 2.

The surface of the floating ball 4 and the sealing surface are both provided with smooth surfaces, and the sealing performance is ensured by the arrangement.

In order to clear up the check device 3, consequently the removable installation of check device 3 is in the mounting groove on valve body 1, check device 3 passes through the bolt and installs on valve body 1, check device 3 can also the joint in the mounting groove, and this setting is convenient for the later stage to maintain check device 3.

In order to facilitate the processing of the floating ball 4, the floating ball 4 is made of plastic, and specifically, the floating ball 4 is made of a PP ball. The floating ball 4 can float in water.

In order to discharge accumulated water in the U-shaped pipeline 2, a water outlet 5 is arranged on the valve body 1, the water outlet 5 is communicated with the U-shaped pipeline 2, a sealing cover 6 is arranged on the water outlet 5, the sealing cover 6 is installed on the valve body 1 through threads, and the sealing cover 6 can be directly buckled on the valve body 1. When it is necessary to discharge water from the inside of the U-shaped pipe 2, the sealing cap 6 is removed from the valve body 1, and the water is discharged through the water discharge port 5.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A drain choke valve, comprising: the valve body is internally provided with a U-shaped pipeline in a run-through manner;

2. The water discharge choke valve of claim 1, wherein the check member is provided with a cavity for receiving the float ball therein, and the float ball is seated on a sealing surface of the cavity.

3. The drain choke valve of claim 2, wherein the floating ball is movably disposed in the inner cavity of the one-way device.

4. The drain choke valve of claim 2, wherein the floating ball surface and the sealing surface are both provided with a smooth surface.

5. The water discharge choke valve of claim 1, wherein an input end of the one-way device is connected to an output end of the U-shaped pipe.

6. The water discharge choke valve of claim 1, wherein the one-way device is removably mounted in a mounting groove in the valve body.

7. The drain choke valve of claim 5, wherein the one-way device is bolted to the valve body.

8. The drain choke valve of claim 5, wherein the one-way device is snapped into the mounting groove.

9. The water discharge choke valve according to claim 1, wherein the valve body is provided with a water discharge port, the water discharge port is communicated with the U-shaped pipe, and the water discharge port is provided with a sealing cover.