CN216973636U

CN216973636U - Automatic open-close negative pressure pipeline opening-closing device

Info

Publication number: CN216973636U
Application number: CN202123231297.7U
Authority: CN
Inventors: 陈礼国; 张维; 陈云逸
Original assignee: Jiangsu Fengyou Environmental Technology Co ltd; Shanghai ZTec Environmental Technology Co ltd
Current assignee: Jiangsu Fengyou Environmental Technology Co ltd; Shanghai ZTec Environmental Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-15
Anticipated expiration: 2031-12-21

Abstract

An opening and closing device for automatically opening and closing a negative pressure pipeline comprises a plug (204) for plugging a suction port (3), a cabin body (2) and a floating body (205). The floating body (205) is arranged in the cabin body (2), and the track cabin (1) is positioned in the liquid storage container (5); the inner wall of the track cabin (1) is internally connected with the outer wall of the cabin body (2); a bottom plate (202) is arranged at the bottom of the cabin body (2), and the bottom plate (202) is connected with a plug (204) through a connecting rod (203); the whole body formed by connecting the cabin body (2) and the plug (204) is positioned in the track cabin inner cavity (102) of the track cabin (1). According to the utility model, the floating body is arranged in the cabin body, and the cabin body is connected with the plug through the connecting rod, so that the plugging effect is good; the valve has a pure mechanical structure, realizes automatic opening and closing by utilizing buoyancy, has long service life and low failure rate, is used for an outdoor negative pressure drainage system, and solves the industrial problem of high failure rate of a vacuum interface valve of the traditional negative pressure drainage system.

Description

Automatic open-close negative pressure pipeline opening-closing device

Technical Field

The utility model relates to the technical field of liquid discharge, in particular to an opening and closing device for automatically opening and closing a negative pressure pipeline.

Background

The negative pressure drainage technology is known as the emerging drainage technology in the 21 st century, but the outdoor negative pressure drainage system has not released technical potential in the industry all the time due to the reasons that a power supply or an air source needs to be consumed in the opening and closing process of a vacuum interface valve of the traditional outdoor negative pressure drainage system, the structure is complex, the failure rate is high and the like.

CN 213572250U stock solution chamber drainage tube device that opens and shuts discloses that shutoff piece and buoyancy connect into whole and lie in the guide way with stock solution chamber intercommunication, and the shutoff piece passes through the pendulum rod and connects buoyancy, utilizes liquid buoyancy size control shutoff piece to rise and descend, reaches the purpose of opening the fluid-discharge tube shutoff fluid-discharge tube. But a plurality of buoyancy pieces and the plugging pieces are connected in series in sequence through connecting ropes; or the plugging piece is connected with a swing rod hinged on the inner wall of the liquid storage cavity, and the buoyancy piece is connected with the swing rod through a connecting rope; the plugging effect is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a negative pressure pipeline opening and closing device which is good in plugging effect, pure in mechanical structure, long in service life and low in failure rate.

In order to solve the technical problems, the utility model provides an opening and closing device for automatically opening and closing a negative pressure pipeline, which comprises a plug for plugging a suction port, a cabin body and a floating body. The floating body is arranged in the cabin body, and the track cabin is positioned in the liquid storage container. The inner wall of the track cabin is internally connected with the outer wall of the cabin body; the bottom of the cabin body is provided with a bottom plate, and the bottom plate is connected with a plug through a connecting rod; the floating body is arranged in the cabin body, and the cabin body is connected with the plug through the connecting rod, so that the plugging effect is improved. The whole body formed by connecting the cabin body and the plug is positioned in the cavity of the track cabin.

Through adopting above-mentioned pure mechanical structure, high liquid level suction inlet is opened in the twinkling of an eye, and low liquid level suction inlet is closed in the twinkling of an eye, and opens and close the in-process and neither need consume the electric energy nor need consume the negative pressure air supply.

Furthermore, the cabin body is a box body, and water through holes are formed in the cabin body; and the track cabin is provided with a track cabin water through hole.

By adopting the structure, the liquid flows into the water inlet and enters the cabin body through the water hole, so that the floating body in the cabin body rises and falls along with the liquid level, and the suction port is controlled to be opened and closed.

Furthermore, the cabin body is composed of three vertical limiting rods and a limiting frame composed of a triangular limiting frame at the top.

Through adopting above-mentioned structure, avoid the body to break away from spacing of spacing frame and remove about, and spacing frame still has limit function to the body is vertical.

Further, the floating body is a cube, a sphere or a cylinder.

Furthermore, one end of the negative pressure discharge pipe penetrates through the track cabin, and a pipe orifice at the end is a horn-shaped suction port; the other end of the negative pressure discharge pipe penetrates through the liquid storage container and is used for discharging liquid.

Furthermore, the height of the cabin body is 1/3-2/3 of the height of the track cabin.

By adopting the structure, stronger single-time liquid discharge capacity can be obtained. The single liquid discharge amount refers to the liquid volume between the min liquid level and the max liquid level in one period from the blockage to the opening of the suction port.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the floating body is arranged in the cabin body, and the cabin body is connected with the plug through the connecting rod, so that the plugging effect is improved.

2. One end of a negative pressure discharge pipe penetrates through a track cabin which is positioned in a liquid storage container and is provided with a water through hole of the track cabin, a pipe orifice of the end is a trumpet-shaped suction port, and the other end of the negative pressure discharge pipe penetrates through the liquid storage container; the floating body is arranged in the cabin body provided with the water through holes; the bottom plate at the bottom of the cabin body is connected with the plug through a connecting rod; the whole body formed by connecting the cabin body and the plug is positioned in the cavity in the track cabin of the track cabin; by adopting the pure mechanical structure, the automatic opening and closing can be realized by utilizing buoyancy, the electric energy and the negative pressure air source are not consumed in the opening and closing process, the service life is long, the fault rate is low, and the industrial problem of high fault rate of the vacuum interface valve of the traditional outdoor negative pressure drainage system is solved.

3. The height of the cabin body is 1/3-2/3 of the height of the track cabin, and single liquid discharge amount is increased.

4. The cabin structure formed by the limiting frames consisting of the three vertical limiting rods and the triangular limiting frame at the top is adopted, so that the floating body is prevented from being separated from the limiting of the limiting frames and moving left and right, and the limiting frames have a limiting function on the vertical direction of the floating body.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view of the connection between the track cabin and the cabin body according to the present invention.

Fig. 3 is a schematic view of the square floating body of the present invention.

Fig. 4 is a schematic view of the circular float of the present invention.

Fig. 5 is a schematic structural diagram of a limiting frame in embodiment 3 of the present invention.

FIG. 6 is a schematic view of the min level condition of the present invention.

FIG. 7 is a schematic diagram of the cen liquid level operating conditions of the present invention.

FIG. 8 is a schematic view of the max level condition of the present invention.

Fig. 9 is a schematic view showing the opening of the mouthpiece according to the present invention.

In the figure, 1, a track cabin, 2, a cabin body, 3, a suction port, 201, a water passing hole, 202, a bottom plate, 203, a connecting rod, 204, a plug, 205, a floating body, 4, a negative pressure discharge pipe, 5, a liquid storage container, 6, a water inlet, 7, min, 8, cen, 9, max, 10, a vertical limiting rod and 11, a limiting frame.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

As shown in figure 1, the opening and closing device for automatically opening and closing the negative pressure pipeline comprises a plug 204 for plugging a suction port 3, a cabin body 2 and a floating body 205. One end of the negative pressure discharge pipe 4 penetrates through the track cabin 1, and the pipe orifice of the negative pressure discharge pipe is a trumpet-shaped suction port 3; the other end of the negative pressure discharge pipe 4 penetrates through the liquid storage container 5. The floating body 205 is arranged in the cabin body 2, and the cabin body 2 is provided with water through holes 201; the rail capsule 1 is positioned in the liquid storage container 5. The liquid storage container 5 is provided with a water inlet 6. The track cabin 1 is provided with a track cabin water through hole 101. The bottom of the cabin 2 is provided with a bottom plate 202, and the bottom plate 202 is connected with a plug 204 through a connecting rod 203. The floating body 205 is arranged in the cabin body 2, and the cabin body 2 is connected with the plug 204 through the connecting rod 203, so that the plugging effect is improved. The cabin body 2 and the plug 204 are connected to form a whole body which is positioned in the track cabin inner cavity 102 of the track cabin 1. The high liquid level suction port 3 is opened instantly, the low liquid level suction port 3 is closed instantly, and electric energy and negative pressure air sources are not consumed in the opening and closing processes. Different drainage water amounts are obtained by designing different heights of the cabin body. The suction port 3 is controlled to open the liquid level and control the height difference between the suction port 3 closed liquid level through buoyancy and self-weight design, and then the suction port 3 is controlled to open and close the liquid suction amount for 1 time.

The height of the cabin body 2 is 1/3-2/3 of the height of the track cabin 1, and the structure can obtain stronger single liquid discharge capacity. The single discharge amount refers to the volume of liquid between the min liquid level 7 and the max liquid level 9 in one period from the blockage to the opening of the suction port.

As shown in fig. 2, the inner wall of the track cabin 1 is inscribed in the outer wall of the cabin 2.

As shown in fig. 3, the floating body 205 is a cube.

Example 2, the same as example 1, except that the float 205 is a sphere, as shown in fig. 4.

Example 3, the same as example 1. Except that the float 205 is a cylinder; the cabin 2 is composed of three vertical limiting rods 10 and a limiting frame composed of a triangular limiting frame 11 at the top, as shown in fig. 5. The limiting frame is made of plastic or stainless steel. The limit frame is adopted to effectively prevent the floating body 205 from moving left and right, namely, the floating body 205 can not be separated from the limit of the limit frame to move left and right, and the limit frame also has a limit function on the vertical direction of the floating body 205.

The working process is shown in figures 6-9.

As shown in fig. 6, the floating body 205 is located at the bottom inside the tank 2, which is the min level 7. The plug 204 plugs the suction port 3. When the plug 204 plugs the suction port 3, the pressure at the suction port 3 ranges from-0.005 to-0.095 MPa. At this time, the buoyancy of the cabin 2 is as follows:

(dead weight of the cabin body 2 + dead weight of the floating body 205 + negative pressure suction of the suction port 3) > buoyancy of the cabin body 2.

As shown in fig. 7, the floating body 205 is located in the middle inside the tank 2, in this case at the cen level 8. The cen liquid level 8 is a fluctuation liquid level, and the interval is a min liquid level 7-max liquid level 9. In the cen level 8 range, the floating body 205 floats in the tank 2, and no force is applied between the floating body 205 and the tank 2. In the range of cen liquid level 8, the plug 204 blocks the suction port 3, and the floating body 205 rises along with the rise of the liquid level. At this time, the buoyancy of the cabin 2 is as follows:

(the self weight of the cabin body 2 + the negative pressure suction of the suction port 3) > the buoyancy of the cabin body 2.

As shown in fig. 8, the floating body 205 is located at the top inside the tank 2, at this time at max level. When the liquid level rises from the cen liquid level 8 to the max liquid level 9, the plug 204 plugs the suction port 3, the suction port 3 is in a critical opening state, and when the liquid level is higher than the max liquid level 9, the suction port 3 is opened. The liquid level rises from the cen level 8 to the max level 9, and the floating body 205 exerts an upward force F on the ceiling of the tank 2. The size of F is then as follows:

f = buoyancy of float 205-self weight of float 205.

When the liquid level is at max liquid level 9, the suction port 3 is in a critical opening state, and the buoyancy is related as follows:

the buoyancy of the floating body 205, the self weight of the floating body 205, the negative pressure suction force of the suction port 3, the self weight of the cabin body 2 and the buoyancy of the cabin body 2 are approximately equal.

As shown in fig. 9, the suction port is open and the liquid level is above max liquid level 9, critical. The buoyancy of the cabin body 2 overcomes the self weight of the cabin body and the suction force of the suction port 3, and the suction port 3 is opened. After the cabin 2 floats, the fluid in the cabin 2 is discharged through the water through holes 201 and is completely discharged. After the cabin 2 floats upwards, the cabin 2 floats on the liquid surface, and the water through holes 201 are not submerged. After the suction port 3 is opened, the fluid is discharged along the negative pressure discharge tube 4 by the negative pressure suction force. After the suction port 3 is opened, the liquid level gradually decreases along with the discharge of the fluid until the plug 204 blocks the suction port 3 again.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by the embodiments, therefore: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides an automatic open and close negative pressure pipeline device that opens and shuts, is including end cap (204) that are used for shutoff suction inlet (3), the cabin body (2), body (205), its characterized in that: the floating body (205) is arranged in the cabin body (2), and the track cabin (1) is positioned in the liquid storage container (5); the inner wall of the track cabin (1) is internally connected with the outer wall of the cabin body (2); a bottom plate (202) is arranged at the bottom of the cabin body (2), and the bottom plate (202) is connected with a plug (204) through a connecting rod (203); the whole body formed by connecting the cabin body (2) and the plug (204) is positioned in the track cabin inner cavity (102) of the track cabin (1).

2. The automatic opening and closing negative pressure pipeline opening and closing device according to claim 1, characterized in that: the cabin body (2) is a box body, and water through holes (201) are formed in the box body.

3. The automatic opening and closing negative pressure pipeline opening and closing device according to claim 1, characterized in that: and the track cabin (1) is provided with a track cabin water through hole (101).

4. The automatic opening and closing negative pressure pipeline opening and closing device according to claim 1, characterized in that: the cabin body (2) is composed of a limiting frame consisting of a vertical limiting rod (10) and a limiting frame (11) at the top.

5. The automatic opening and closing negative pressure pipeline opening and closing device according to claim 1, characterized in that: the floating body (205) is a cube, a sphere or a cylinder.

6. The automatic opening and closing negative pressure pipeline opening and closing device according to claim 1, characterized in that: one end of the negative pressure discharge pipe (4) penetrates through the track cabin (1), and the pipe orifice of the end is a trumpet-shaped suction port (3); the other end of the negative pressure discharge pipe (4) penetrates through the liquid storage container (5).

7. The automatic opening and closing negative pressure pipeline opening and closing device according to claim 2, characterized in that: the height of the cabin body (2) is 1/3-2/3 of the height of the track cabin (1).