Automatic drainage device for emptying vertical pipe

Abstract

The utility model relates to an automatic drainage device for an emptying vertical pipe, which belongs to drainage devices and comprises a cavity, an upper cover is in threaded connection with the upper end of the cavity, a connecting short pipe is arranged at the upper end of the outer wall of one side of the cavity, and a flange is fixed at the outer end of the connecting short pipe. A partition plate is fixed to the lower portion in the cavity, a through hole I is formed in the center of the partition plate, a plurality of drainage holes I are evenly distributed in the portion, on the periphery of the through hole I, of the partition plate, a through hole II is formed in the center of the bottom of the cavity, and a plurality of drainage holes II are evenly distributed in the periphery of the through hole II. Threaded rods are movably arranged in the through hole I and the through hole II, a valve plate is fixed to the portion, above the partition plate, of the threaded rod, and a floating ball is fixed to the upper end of the threaded rod. The automatic drainage device for the emptying vertical pipe is reasonable in structural design, automatic drainage can be achieved, regular manual pollution discharge is not needed, meanwhile, natural gas cannot be discharged during emptying, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model belongs to a drainage device, in particular to an automatic drainage device for venting a vertical pipe. Background Art

[0002] The venting riser is a component set up to discharge the media that endangers the normal operation and maintenance of containers, pipelines and other equipment. Venting risers are installed in the venting area of ​​each station and valve room of the gas pipeline enterprise. During the long-term use of the venting riser, rainwater will fall from the top of the venting riser to the bottom. At this time, it is necessary to regularly discharge the sewage in the venting riser to prevent corrosion of the pipeline. Figure 1 As shown, the current method for discharging sewage is to provide a manual sewage valve 18 on the outlet pipe 17 at the bottom of the vent riser, and a drain pipe 19 is connected to the other end of the manual sewage valve 18. When sewage needs to be discharged, the staff needs to open the manual sewage valve 18 to discharge the sewage. After the sewage is discharged, the staff will close the manual sewage valve 18. This sewage discharge method not only increases the workload of the staff, but also easily causes part of the natural gas to be discharged during the sewage discharge process, posing a safety hazard. Summary of the invention

[0003] The utility model provides an automatic drainage device for an emptying standpipe in order to solve the deficiencies of the prior art.

[0004] The utility model discloses an automatic drainage device for an evacuation riser, comprising a cavity, an upper cover being threadedly connected to the upper end of the cavity, a connecting short pipe being provided at the upper end of an outer wall on one side of the cavity, and a flange being fixed to the outer end of the connecting short pipe; a partition is fixed to the lower part of the cavity, a through hole I is provided at the center of the partition, a plurality of drainage holes I are evenly distributed on the partition around the through hole I, a through hole II is provided at the center of the bottom of the cavity, a plurality of drainage holes II are evenly distributed around the through hole II; threaded rods are movably provided in the through holes I and II, a valve plate is fixed to the threaded rod above the partition, and a float is fixed to the upper end of the threaded rod.

[0005] As a further improvement of the utility model, an adjusting spring is fixed at the bottom of the cavity, a baffle is fixed at the middle of the outer wall of the threaded rod, the threaded rod passes through the adjusting spring, and the bottom end of the baffle is fixed to the upper end of the adjusting spring.

[0006] As a further improvement of the utility model, the lower end of the threaded rod is threadedly connected with a nut, and the nut is placed outside the cavity.

[0007] As a further improvement of the utility model, a groove is provided on the upper end surface of the cavity, and a sealing ring is provided in the groove.

[0008] As a further improvement of the present invention, the cross section of the cavity below the partition is an inverted frustum.

[0009] The automatic drainage device for venting risers of the utility model has a reasonable structural design and can realize automatic drainage. There is no need for manual sewage discharge on a regular basis, which reduces the workload of staff. The device is simple, convenient and practical. At the same time, it will not cause the natural gas to be discharged during venting, thus eliminating potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a cross-sectional view of the installation structure of the prior art;

[0011] Figure 2 It is a structural sectional view of the utility model;

[0012] Figure 3 It is a cross-sectional view of the installation structure of the utility model. Implementation

[0013] The utility model of the automatic drainage device for venting standpipe is as follows: Figure 2 As shown, it includes a cavity 1, an upper cover 2 is threadedly connected to the upper end of the cavity 1, a groove is provided on the upper end surface of the cavity 1, a sealing ring 16 is provided in the groove, and the sealing ring 16 can play a sealing role, a connecting short pipe 3 is provided at the upper end of the outer wall of one side of the cavity 1, and a flange 4 is fixed to the outer end of the connecting short pipe 3, and the cavity 1 is conveniently fixed to one end of the manual sewage valve 18 through the flange 4.

[0014] A partition 5 is fixed at the lower part of the cavity 1, and the cross-section of the cavity 1 below the partition 5 is an inverted cone shape. A through hole Ⅰ6 is provided at the center of the partition 5, and a plurality of drainage holes Ⅰ12 are evenly distributed on the partition 5 around the through hole Ⅰ6. A through hole Ⅱ7 is provided at the center of the bottom of the cavity 1, and a plurality of drainage holes Ⅱ13 are evenly distributed around the through hole Ⅱ7; a threaded rod 8 is movably provided in the through holes Ⅰ6 and Ⅱ7, and a valve plate 9 is fixed on the threaded rod 8 above the partition 5, and the size of the valve plate 9 can cover all the drainage holes Ⅰ12, and a float 10 is fixed on the upper end of the threaded rod 8; Figure 3 As shown, when the device is in use, it can be fixedly connected to one end of the existing manual drain valve 18 through the flange 4, so that the manual drain valve 18 is always in an open state, and the sewage in the emptied standpipe will flow into the cavity 1 from the connecting short pipe 3. When the sewage in the cavity 1 reaches a certain amount, the float 10 will float up with the rise of the water level. At this time, the valve plate 9 will also move upward, and the sewage in the cavity 1 will flow from the drain hole Ⅰ12 to the bottom of the cavity 1, and then be discharged from the drain hole Ⅱ13.

[0015] In order to enable the float 10 to return to its original position quickly after the water is drained, an adjusting spring 14 is fixed at the bottom of the cavity 1, and a baffle 15 is fixed at the middle of the outer wall of the threaded rod 8. The threaded rod 8 passes through the adjusting spring 14, and the bottom end of the baffle 15 is fixed to the upper end of the adjusting spring 14. When the water level in the cavity 1 rises, the float 10 will float up with the rise of the water level, and the valve plate 9 will also move upward. At this time, the adjusting spring 14 is in a stretched state; and as the water level drops, the float 10 will move downward with the drop of the water level. When the water level in the cavity 1 drops to a certain position, the elastic force of the adjusting spring 14 is greater than the buoyancy of the float 10. Under the action of the adjusting spring 14, the float 10 can drop quickly, and then the valve plate 9 falls onto the partition 5 to cover the drainage hole Ⅰ12, completing a stage of drainage.

[0016] The device also has a nut 11 threadedly connected to the lower end of the threaded rod 8, and the nut 11 is placed outside the cavity 1; when the water level in the cavity 1 rises, the float 10 will float up with the rising water level, and the adjusting spring 14 will be stretched by the upward force. At this time, the nut 11 can play a limiting role and will not let the float 10 continue to float upward with the rising water level.

Claims

1. Automatic drainage device for venting riser, characterized by The invention comprises a cavity (1), an upper cover (2) being threadedly connected to the upper end of the cavity (1), a connecting short tube (3) being provided at the upper end of the outer wall of one side of the cavity (1), and a flange (4) being fixed to the outer end of the connecting short tube (3); a partition (5) being fixed to the lower part of the cavity (1), a through hole I (6) being provided at the center of the partition (5), and a plurality of drainage holes I (12) being evenly distributed on the partition (5) around the through hole I (6); a through hole II (7) being provided at the center of the bottom of the cavity (1), and a plurality of drainage holes II (13) being evenly distributed around the through hole II (7); a threaded rod (8) being movably provided in the through hole I (6) and the through hole II (7), a valve plate (9) being fixed to the threaded rod (8) above the partition (5), and a floating ball (10) being fixed to the upper end of the threaded rod (8).

2. The automatic drainage device for venting riser according to claim 1 is characterized in that An adjusting spring (14) is fixed to the bottom of the cavity (1), a baffle (15) is fixed to the middle of the outer wall of the threaded rod (8), the threaded rod (8) passes through the adjusting spring (14), and the bottom end of the baffle (15) is fixed to the upper end of the adjusting spring (14).

3. The automatic drainage device for venting riser according to claim 2 is characterized in that The lower end of the threaded rod (8) is threadedly connected to a nut (11), and the nut (11) is placed outside the cavity (1).

4. The automatic drainage device for venting riser according to claim 1 is characterized in that A groove is provided on the upper end surface of the cavity (1), and a sealing ring (16) is provided in the groove.

5. The automatic drainage device for venting standpipe according to claim 1 is characterized in that The cross section of the cavity (1) below the partition (5) is in the shape of an inverted frustum.

Images