A vacuum negative pressure unit for sewage collection

Abstract

The present invention relates to the technical field of sewage collection, and specifically to a vacuum negative pressure unit for sewage collection. The present invention comprises a sewage collection tank and a vacuum pump. A connecting base plate is fixedly connected to one side of the bottom of the sewage collection tank, a longitudinal sleeve is fixedly installed on the top of the connecting base plate, a bent connecting pipe is fixedly connected to the top of the longitudinal sleeve, and one end of the bent connecting pipe is fixedly connected to the top of the sewage collection tank. A counterweight is arranged inside the longitudinal sleeve, and a buoyancy disk that can float on the water surface is arranged inside the sewage collection tank. The counterweight arranged inside the longitudinal sleeve will cause corresponding changes when the sewage liquid level inside the sewage collection tank rises and falls, so that when the counterweight contacts the first pressure sensor and the second pressure sensor above and below, the vacuum pump can be controlled to be opened and closed, and when there is too much sewage in the sewage collection tank, it can be discharged in time without frequent manual observation and control, thereby reducing labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of sewage collection, in particular to a vacuum negative pressure unit for sewage collection. Background Art

[0002] In the sewage treatment process, when collecting sewage from different locations, in order to better collect and transport the sewage, a vacuum negative pressure pump is often used to transport the sewage.

[0003] When sewage is transported and treated through a vacuum negative pressure pump, because the sewage discharge time and sewage discharge volume from different sources are different, the sewage will be collected uniformly in a sewage collection tank in the vacuum negative pressure unit and then transported to the sewage treatment equipment to avoid power loss caused by continuous operation of the equipment.

[0004] In the prior art, the sewage collected in the sewage collection tank needs to be manually observed for the sewage content inside the sewage collection tank, and the vacuum pump is controlled to transport the sewage when the water level reaches a certain height. During sewage treatment, the staff needs to frequently observe the water level in the sewage collection tank, which is an unnecessary burden on the staff. Summary of the invention

[0005] The object of the present invention is to provide a vacuum negative pressure unit for sewage collection to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A vacuum negative pressure unit for sewage collection, comprising a sewage collection tank and a vacuum pump, wherein a connection base is fixedly connected to one side of the bottom of the sewage collection tank, a longitudinal sleeve is fixedly installed on the top of the connection base, a curved connecting pipe is fixedly connected to the top of the longitudinal sleeve, and one end of the curved connecting pipe is fixedly connected to the top of the sewage collection tank;

[0008] A counterweight is provided inside the longitudinal sleeve, a buoyancy disk that can float on the water surface is provided inside the sewage collection tank, an adjustment rope is fixedly connected to the center position of the top of the buoyancy disk, one end of the adjustment rope away from the buoyancy disk passes through the curved connecting tube and extends into the interior of the longitudinal sleeve, and one end of the adjustment rope located inside the longitudinal sleeve is fixedly connected to the counterweight;

[0009] The top of the inner wall of the longitudinal sleeve is fixedly connected with a first pressure sensor, and the bottom of the inner wall of the longitudinal sleeve is fixedly connected with a second pressure sensor.

[0010] Preferably, the water inlet of the vacuum pump is fixedly connected to a vacuum water pumping pipe, the bottom of the vacuum water pumping pipe extends into the interior of the sewage collection tank, and the water outlet of the vacuum pump is fixedly connected to a water delivery pipe.

[0011] Preferably, a PLC controller is fixedly installed at the center position of one side of the longitudinal sleeve, and the PLC controller is electrically connected to the vacuum pump for controlling the vacuum pump, and the first pressure sensor and the second pressure sensor are both electrically connected to the PLC controller.

[0012] Preferably, a longitudinal guide rod is fixedly connected to the bottom of the inner wall of the sewage collection tank, and the longitudinal guide rod is slidably connected to the buoyancy disk.

[0013] Preferably, a water-absorbing cotton sleeve is fixedly connected to the top of the sewage collection tank and located inside the curved connecting pipe, and one end of the adjusting hanging rope passes through the water-absorbing cotton sleeve.

[0014] Preferably, a water inlet pipe is fixedly connected to the top of the sewage collection tank, a plurality of support shafts are evenly fixedly connected to the bottom of the water inlet pipe, and a filter screen cylinder is provided inside the water inlet pipe and above the support shaft.

[0015] Preferably, a detection conduit is provided on one side of the sewage collection tank, one end of the detection conduit located outside the sewage collection tank is fixedly connected to a conical connecting frame, and a drip pipe is fixedly connected to the bottom of the conical connecting frame.

[0016] Preferably, a bent support rod is fixedly connected between the two sides of the inner wall of the dropper, an annular plate is fixedly connected to the top of the bent support rod, a sealing spring is fixedly connected to the top of the annular plate, and a fitting sealing plug is fixedly connected to the top of the sealing spring.

[0017] Preferably, an annular groove is provided at the bottom of the fitting sealing plug, and the top of the sealing spring is fixedly connected to the top of the inner wall of the annular groove.

[0018] Preferably, an assembly frame is fixedly connected to one side of the sewage collection tank, threaded sleeves are fixedly connected to both sides of the longitudinal sleeve, and reinforcing screws for fixing the threaded sleeves to the assembly frame are threadedly connected to the threaded sleeves.

[0019] Beneficial effects of the present invention:

[0020] By arranging a counterweight inside the longitudinal casing, corresponding changes will occur when the sewage level inside the sewage collection tank rises and falls. When the counterweight contacts the first pressure sensor and the second pressure sensor above and below, the opening and closing of the vacuum pump can be controlled. When there is too much sewage in the sewage collection tank, it can be discharged in time. There is no need for frequent manual observation and control, thus reducing labor intensity.

[0021] When the detection duct is set, when the PLC controller's control of the vacuum pump is abnormal and the sewage inside the sewage collection tank cannot be discharged in time, dripping will occur in the drip pipe, so that it is convenient to timely observe whether there is dripping to grasp whether the sewage level inside the sewage collection tank is too high. When necessary, the vacuum pump can be manually controlled to discharge the sewage inside the sewage collection tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 yes Figure 1 Side view of the sewage collection tank;

[0025] Figure 3 yes Figure 1 The enlarged view of point A in the middle;

[0026] Figure 4 yes Figure 1 A cross-sectional view of the front view of the sewage collection tank;

[0027] Figure 5 yes Figure 4 A schematic diagram of the structure of the middle longitudinal casing part;

[0028] Figure 6 yes Figure 4 A schematic diagram of the structure of the detection catheter part;

[0029] Figure 7 yes Figure 4 Schematic diagram of the structure of the water inlet pipe part.

[0030] The reference numerals in the figures are as follows:

[0031] 1. Sewage collection tank, 2. Vacuum pump, 3. Connecting base plate, 4. Longitudinal sleeve, 5. Bending connecting pipe, 6. Counterweight, 7. Buoyancy disc, 8. Adjusting hanging rope, 9. First pressure sensor, 10. Second pressure sensor, 11. Vacuum pumping pipe, 12. Water delivery pipe, 13. PLC controller, 14. Longitudinal guide rod, 15. Absorbent cotton sleeve, 16. Water inlet pipe, 17. Support shaft, 18. Filter mesh cylinder, 19. Detection catheter, 20. Conical connecting frame, 21. Drip pipe, 22. Bending support rod, 23. Ring plate, 24. Sealing spring, 25. Fitting sealing plug, 26. Annular groove, 27. Assembly frame, 28. Threaded sleeve, 29. Reinforcement screw. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] A vacuum negative pressure unit for sewage collection, comprising a sewage collection tank 1 and a vacuum pump 2, wherein a connection base plate 3 is fixedly connected to one side of the bottom of the sewage collection tank 1, a longitudinal sleeve 4 is fixedly installed on the top of the connection base plate 3, a curved connecting pipe 5 is fixedly connected to the top of the longitudinal sleeve 4, and one end of the curved connecting pipe 5 is fixedly connected to the top of the sewage collection tank 1;

[0034] A counterweight 6 is provided inside the longitudinal sleeve 4, and a buoyancy disk 7 that can float on the water surface is provided inside the sewage collection tank 1. An adjustment rope 8 is fixedly connected to the center position of the top of the buoyancy disk 7. One end of the adjustment rope 8 away from the buoyancy disk 7 passes through the curved connecting tube 5 and extends into the longitudinal sleeve 4, and one end of the adjustment rope 8 located inside the longitudinal sleeve 4 is fixedly connected to the counterweight 6;

[0035] A first pressure sensor 9 is fixedly connected to the top of the inner wall of the longitudinal sleeve 4 , and a second pressure sensor 10 is fixedly connected to the bottom of the inner wall of the longitudinal sleeve 4 .

[0036] like Figure 1 , Figure 4 and Figure 5 The mass of the counterweight 6 is less than the mass of the buoyancy disk 7, so that when there is no sewage inside the sewage collecting tank 1, the buoyancy disk will fall to the lower part inside the sewage collecting tank 1. The sewage collecting tank 1 is connected to the longitudinal sleeve 4 through a curved connecting pipe 5. The curved surface on the inner side of the curved connecting pipe 5 can reduce the wear of the adjusting rope 8 when the adjusting rope 8 passes through. The vacuum pump 2 is externally connected to a power supply and has a corresponding control switch on the outside.

[0037] The water inlet of the vacuum pump 2 is fixedly connected to a vacuum water pumping pipe 11 , the bottom of the vacuum water pumping pipe 11 extends into the interior of the sewage collection tank 1 , and the water outlet of the vacuum pump 2 is fixedly connected to a water delivery pipe 12 .

[0038] like Figure 1 and Figure 4 The vacuum pump 2 can extract the sewage in the sewage collection tank 1 through the vacuum water pumping pipe 11, and then transport the sewage to the next level of sewage treatment equipment through the water delivery pipe 12.

[0039] A PLC controller 13 is fixedly installed at the center position of one side of the longitudinal sleeve 4. The PLC controller 13 is electrically connected to the vacuum pump 2 for controlling the vacuum pump 2. The first pressure sensor 9 and the second pressure sensor 10 are both electrically connected to the PLC controller 13.

[0040] like Figure 1 , Figure 4 and Figure 5 The PLC controller 13 can control the opening and closing of the vacuum pump 2. When the counterweight 6 contacts the first pressure sensor 9 and the second pressure sensor 10, the vacuum pump 2 will be controlled by the PLC controller 13.

[0041] A longitudinal guide rod 14 is fixedly connected to the bottom of the inner wall of the sewage collection tank 1 , and the longitudinal guide rod 14 is slidably connected to the buoyancy disk 7 .

[0042] like Figure 4 and Figure 5 The longitudinal guide rod 14 passes through the buoyancy disc 7, so that the buoyancy disc 7 can only move up and down above the longitudinal guide rod 14, and the buoyancy disc 7 will not be deflected when it moves.

[0043] A water-absorbing cotton sleeve 15 is fixedly connected to the top of the sewage collection tank 1 and inside the curved connecting pipe 5 , and one end of the adjusting hanging rope 8 passes through the water-absorbing cotton sleeve 15 .

[0044] like Figure 4 and Figure 5 When the adjustment rope 8 passes through the absorbent cotton sleeve 15 , the absorbent cotton sleeve 15 will rub the surface of the adjustment rope 8 to remove pollutants on the surface of the absorbent cotton sleeve 15 and prevent the pollutants from entering the interior of the longitudinal sleeve 4 .

[0045] The top of the sewage collection tank 1 is fixedly connected with a water inlet pipe 16 , the bottom of the water inlet pipe 16 is evenly fixedly connected with a plurality of support shafts 17 , and a filter screen cylinder 18 is arranged inside the water inlet pipe 16 and above the support shafts 17 .

[0046] like Figure 4 and Figure 7There is a screw hole on the top of the water inlet pipe 16, which is convenient for connecting with the external sewage inlet pipe to input the sewage into the sewage collection tank 1. When the sewage passes through the water inlet pipe 16, the filter cylinder 18 will filter the pollutants in the sewage. When the external pipeline and the water inlet pipe 16 are separated, the filter cylinder 18 can be taken out to clean the pollutants, and the support shaft 17 can filter from the bottom of the filter cylinder 18.

[0047] A detection conduit 19 is provided on one side of the sewage collection tank 1 , and one end of the detection conduit 19 located outside the sewage collection tank 1 is fixedly connected to a conical connecting frame 20 , and a drip pipe 21 is fixedly connected to the bottom of the conical connecting frame 20 .

[0048] One end of the detection conduit 19 is inside the sewage collection tank 1 , and the detection conduit 19 inside the sewage collection tank 1 is bent downward.

[0049] A bent support rod 22 is fixedly connected between the two sides of the inner wall of the dropper 21, a ring plate 23 is fixedly connected to the top of the bent support rod 22, a sealing spring 24 is fixedly connected to the top of the ring plate 23, and a fitting sealing plug 25 is fixedly connected to the top of the sealing spring 24.

[0050] like Figure 4 and Figure 6 The sealing plug 25 is fitted with the inner wall of the conical connecting frame 20 to seal the bottom of the detection conduit 19 to prevent odor leakage inside the sewage collection tank 1. There is a gap between the annular plate 23 and the conical connecting frame 20 to facilitate water circulation.

[0051] An annular groove 26 is formed at the bottom of the fitting sealing plug 25 , and the top of the sealing spring 24 is fixedly connected to the top of the inner wall of the annular groove 26 .

[0052] like Figure 4 and Figure 6 The top of the sealing spring 24 is inserted into the annular groove 26 , thereby reducing the space occupied inside the conical connecting frame 20 .

[0053] An assembly frame 27 is fixedly connected to one side of the sewage collection tank 1 , and threaded sleeves 28 are fixedly connected to both sides of the longitudinal sleeve 4 . Reinforcement screws 29 for fixing the threaded sleeves 28 to the assembly frame 27 are threadedly connected to the threaded sleeves 28 .

[0054] like Figure 1 and Figure 5 By passing the reinforcing screw 29 through the threaded sleeve 28, the threaded sleeve 28 can be fixed to the assembly frame 27 to reinforce the longitudinal sleeve 4.

[0055] The working principle of a vacuum negative pressure unit for sewage collection provided by the present invention is as follows:

[0056] When external sewage is continuously input into the sewage collection tank 1 through the water inlet pipe 16, as the sewage liquid level inside the sewage collection tank 1 continues to rise, the buoyancy disk 7 will rise accordingly, and the counterweight 6 located inside the longitudinal sleeve 4 will drop under the action of gravity. As the sewage liquid level inside the sewage collection tank 1 continues to rise, when the counterweight 6 presses down the second pressure sensor 10, the PLC controller 13 controls the vacuum pump 2 to start, and the vacuum pump 2 extracts the sewage inside the sewage collection tank 1 through the vacuum water extraction pipe 11, and then transports it to the next level of sewage treatment equipment through the water delivery pipe 12;

[0057] As the sewage inside the sewage collection tank 1 is discharged, the sewage level drops and the buoyancy disk 7 drops accordingly. When the buoyancy disk 7 drops, the counterweight 6 is pulled by adjusting the hanging rope 8, so that the counterweight 6 rises accordingly. When the counterweight 6 moves up and contacts the first pressure sensor 9, the PLC controller 13 controls the vacuum pump 2 to shut down and stop discharging the sewage inside the sewage collection tank 1.

[0058] If the PLC controller fails to start the vacuum pump 2 to discharge the sewage in the sewage collection tank 1, the liquid level in the sewage collection tank 1 will rise, and the sewage will flow into the detection conduit 19 and flow along the detection conduit 19. The water pressure from the detection conduit 19 will press down the fitting sealing plug 25, causing the fitting sealing plug 25 to move downward, so that the sewage can flow down between the fitting sealing plug 25 and the conical connecting frame 20, and then drip out through the drip pipe 21. When the staff observes that the sewage drips out through the drip pipe 21, they can manually open the vacuum pump 2 to drain the sewage.

[0059] After the sewage in the sewage collection tank 1 is discharged, the sewage no longer enters the detection conduit 19 . At this time, the sealing spring 24 extends to push the sealing plug 25 upward, so that the sealing plug 25 moves up to close one end of the detection conduit 19 .

[0060] Compared with the related art, the vacuum negative pressure unit for sewage collection provided by the present invention has the following beneficial effects:

[0061] By arranging the counterweight 6 inside the longitudinal sleeve 4, corresponding changes will occur when the sewage level inside the sewage collection tank 1 rises and falls, so that when the counterweight 6 contacts the first pressure sensor 9 and the second pressure sensor 10 above and below, the opening and closing of the vacuum pump 2 can be controlled, and when there is too much sewage in the sewage collection tank 1, it can be discharged in time, without the need for frequent manual observation and control, thereby reducing labor intensity.

[0062] When the detection tube 19 is set, when the PLC controller 13 fails to control the vacuum pump 2 and the sewage in the sewage collection tank 1 cannot be discharged in time, dripping will occur in the drip pipe 21, so that it is convenient to timely observe whether there is dripping to determine whether the sewage level in the sewage collection tank 1 is too high. When necessary, the vacuum pump 2 can be manually controlled to discharge the sewage in the sewage collection tank 1.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A vacuum negative pressure unit for sewage collection, comprising a sewage collection tank (1) and a vacuum pump (2), characterized in that: A connection base plate (3) is fixedly connected to one side of the bottom of the sewage collection tank (1); a longitudinal sleeve (4) is fixedly installed on the top of the connection base plate (3); a bent connecting pipe (5) is fixedly connected to the top of the longitudinal sleeve (4); one end of the bent connecting pipe (5) is fixedly connected to the top of the sewage collection tank (1); A counterweight (6) is arranged inside the longitudinal sleeve (4), a buoyancy disk (7) that can float on the water surface is arranged inside the sewage collection tank (1), an adjustment rope (8) is fixedly connected to the center position of the top of the buoyancy disk (7), one end of the adjustment rope (8) away from the buoyancy disk (7) passes through the curved connecting tube (5) and extends into the interior of the longitudinal sleeve (4), and one end of the adjustment rope (8) located inside the longitudinal sleeve (4) is fixedly connected to the counterweight (6); A first pressure sensor (9) is fixedly connected to the top of the inner wall of the longitudinal sleeve (4), and a second pressure sensor (10) is fixedly connected to the bottom of the inner wall of the longitudinal sleeve (4); The top of the sewage collection tank (1) is fixedly connected to a water inlet pipe (16), the bottom of the water inlet pipe (16) is evenly fixedly connected to a plurality of support shafts (17), and a filter screen cylinder (18) is provided inside the water inlet pipe (16) and above the support shafts (17); A detection conduit (19) is provided on one side of the sewage collection tank (1); one end of the detection conduit (19) located outside the sewage collection tank (1) is fixedly connected to a conical connecting frame (20); and a dripping pipe (21) is fixedly connected to the bottom of the conical connecting frame (20).

2. A vacuum negative pressure unit for sewage collection according to claim 1, characterized in that: The water inlet of the vacuum pump (2) is fixedly connected to a vacuum water pumping pipe (11), the bottom of the vacuum water pumping pipe (11) extends into the interior of the sewage collection tank (1), and the water outlet of the vacuum pump (2) is fixedly connected to a water delivery pipe (12).

3. A vacuum negative pressure unit for sewage collection according to claim 2, characterized in that: A PLC controller (13) is fixedly mounted at the center position of one side of the longitudinal sleeve (4); the PLC controller (13) is electrically connected to the vacuum pump (2) and is used to control the vacuum pump (2); and the first pressure sensor (9) and the second pressure sensor (10) are both electrically connected to the PLC controller (13).

4. A vacuum negative pressure unit for sewage collection according to claim 3, characterized in that: A longitudinal guide rod (14) is fixedly connected to the bottom of the inner wall of the sewage collection tank (1), and the longitudinal guide rod (14) is slidably connected to the buoyancy disc (7).

5. A vacuum negative pressure unit for sewage collection according to claim 4, characterized in that: A water-absorbing cotton sleeve (15) is fixedly connected to the top of the sewage collection tank (1) and located inside the curved connecting pipe (5), and one end of the adjusting hanging rope (8) passes through the water-absorbing cotton sleeve (15).

6. A vacuum negative pressure unit for sewage collection according to claim 1, characterized in that: A bent support rod (22) is fixedly connected between the two sides of the inner wall of the dropper tube (21), an annular plate (23) is fixedly connected to the top of the bent support rod (22), a sealing spring (24) is fixedly connected to the top of the annular plate (23), and a fitting sealing plug (25) is fixedly connected to the top of the sealing spring (24).

7. A vacuum negative pressure unit for sewage collection according to claim 6, characterized in that: An annular groove (26) is formed at the bottom of the fitting sealing plug (25), and the top of the sealing spring (24) is fixedly connected to the top of the inner wall of the annular groove (26).

8. A vacuum negative pressure unit for sewage collection according to claim 1, characterized in that: One side of the sewage collection tank (1) is fixedly connected to an assembly frame (27), and both sides of the longitudinal sleeve (4) are fixedly connected to threaded sleeve blocks (28), and the threaded sleeve blocks (28) are threadedly connected to reinforcing screws (29) for fixing the threaded sleeve blocks (28) to the assembly frame (27).

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