CN219807790U - Vacuum siphon device - Google Patents

Abstract

The utility model discloses a vacuum siphon device, which is characterized in that a siphon tank is added between a phenol-containing waste liquid tank and a centrifugal pump, the siphon tank enables a water pump to absorb water from negative pressure to positive pressure, the use effect is good, the operation is reliable, the defect that the normal operation of the water pump is influenced by water leakage of a bottom valve is avoided, compared with a vacuum pump water diversion system, a vacuum pump and a gas-water separation tank can be saved, a bottom valve is not needed to be arranged on a water suction pipe, the engineering cost is saved, the operation is convenient, and the occupied area is small.

Description

Vacuum siphon device

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a vacuum siphon device.

Background

The production processes of coking plants, gas generating stations, phenol synthesizing plants, pharmaceutical plants, synthetic fiber plants and the like can generate a large amount of phenol-containing wastewater, volatile phenol and non-volatile phenol in the wastewater often exist at the same time, the phenol-containing wastewater contains pollutants such as oil, suspended matters, sulfides, ammonia nitrogen, cyanide and the like besides phenol, at present, the phenol-containing wastewater is industrially treated by firstly filling the phenol-containing wastewater into a phenol-containing waste liquid tank, placing the phenol-containing waste liquid tank into a specially-opened phenol-containing pit for centralized treatment, and then pumping the phenol-containing waste liquid upwards through a centrifugal pump for wastewater treatment and phenol material recovery.

However, at present, when waste water treatment is carried out on phenol-containing waste liquid, a centrifugal pump is often higher than a phenol-containing pit, the distance from a water source is relatively low, the centrifugal pump is limited, the problem of insufficient liquid pumping amount is easy to occur, and at present, a commonly adopted mode (the mode is a treatment mode known by current industry personnel) is to add a vacuum pump, a gas-water separation tank, a water suction pipe bottom valve and other structures to achieve the aim of improving the water pumping efficiency, but the engineering cost is definitely increased, and the water suction pipe bottom valve is easy to leak water to influence the normal operation of the water pump.

Disclosure of Invention

The present utility model is directed to a vacuum siphon device, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a vacuum siphon device, includes siphon jar, contains phenol waste liquid jar, contains phenol pit, centrifugal pump and filter screen plate, the inlet has been seted up on the upper portion of siphon jar, be connected with one-level suction tube on the inlet, the other end of one-level suction tube is connected with the phenol waste liquid jar that contains that sets up in containing phenol pit, the liquid outlet is seted up to the side bottom of siphon jar, install the second grade suction and be responsible for on the liquid outlet, be connected with the second grade suction branch pipe on the second grade suction and be responsible for, install the control valve on the second grade suction branch pipe, the other end of second grade suction branch pipe is connected with the centrifugal pump, siphon jar internally mounted has the filter screen plate.

As a further scheme of the utility model: the filter screen plate is obliquely arranged in the siphon tank, and one side of the siphon tank is opposite to the lower end of the filter screen plate and provided with a slag discharge port.

As still further aspects of the utility model: the slag discharging port is provided with a slag discharging port door plate, a sealing ring is sleeved in the slag discharging port door plate, locking screws are arranged at four corners of the slag discharging port door plate, and the slag discharging port door plate is fixed on the siphon tank through the locking screws.

As still further aspects of the utility model: the upper part of the siphon tank is provided with a water filling port, and a sealing cover is arranged on the water filling port.

As still further aspects of the utility model: an exhaust pipe is arranged between the water filling port and the liquid inlet on the siphon tank, and a one-way valve is arranged on the exhaust pipe.

As still further aspects of the utility model: the liquid level meter is installed to one side of siphon jar, siphon jar bottom is provided with the base.

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

1. the siphon tank is added between the phenol-containing waste liquid tank and the centrifugal pump, so that the water pump is changed from negative pressure water absorption to positive pressure water absorption, the use effect is good, the operation is reliable, the defect that the normal operation of the water pump is influenced due to water leakage of the bottom valve is avoided, compared with a water diversion system of the vacuum pump, the vacuum pump and the gas-water separation tank can be saved, the bottom valve is not needed to be arranged on the water absorption pipe, the engineering cost is saved, the operation is convenient, and the occupied area is small.

2. According to the utility model, the filter screen plate is arranged in the siphon tank, so that the filter screen plate can filter impurities in water sucked or injected into the siphon tank, the impurities are prevented from entering the pipeline along with water flow and the centrifugal pump to cause pipeline blockage or aggravation of abrasion of the centrifugal pump, meanwhile, the phenomenon that the normal use of the siphon tank is influenced by accumulation of the impurities at the bottom of the siphon tank can be avoided, and the slag discharge door plate arranged on the siphon tank can facilitate periodic cleaning of the impurities, so that the service life of the device is prolonged.

Drawings

Fig. 1 is a schematic diagram showing the overall connection of a vacuum siphon device.

Fig. 2 is a sectional view showing the structure of the siphon tank in fig. 1 of a vacuum siphon apparatus.

Fig. 3 is an enlarged view of the structure of the vacuum siphon device at a in fig. 2.

1. A siphon tank; 2. a primary suction tube; 3. a phenol-containing waste liquid tank; 4. a phenol-containing pit; 5. a secondary suction main pipe; 6. a secondary suction manifold; 7. a control valve; 8. a centrifugal pump; 9. a liquid level gauge; 10. a liquid inlet; 11. a liquid outlet; 12. a base; 13. an exhaust pipe; 14. a one-way valve; 15. a water filling port; 16. sealing cover; 17. a filter screen plate; 18. a slag discharge port; 19. a slag discharge port door plate; 20. and (3) sealing rings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, in the embodiment of the utility model, a vacuum siphon device comprises a siphon tank 1, a phenol-containing waste liquid tank 3, a phenol-containing pit 4, a centrifugal pump 8 and a filter screen 17, wherein a liquid inlet 10 is formed in the upper portion of the siphon tank 1, a primary suction pipe 2 is connected to the liquid inlet 10, a liquid outlet 11 is formed in the bottom of the side surface of the siphon tank 1, a secondary suction main pipe 5 is mounted on the liquid outlet 11, a secondary suction branch pipe 6 is connected to the secondary suction main pipe 5, a control valve 7 is mounted on the secondary suction branch pipe 6, a centrifugal pump 8 is connected to the other end of the secondary suction branch pipe 6, a filter screen 17 is mounted in the siphon tank 1, the filter screen 17 can filter impurities sucked or injected into a water body in the siphon tank 1, the pipeline is prevented from being blocked or the centrifugal pump 8 is prevented from being worn by the suction caused by the water flow, and meanwhile, the normal use of the tank 1 is prevented from being influenced by the accumulation of impurities at the bottom of the siphon tank 1.

Referring to fig. 2, a filter screen plate 17 is obliquely installed in a siphon tank 1, a water filling port 15 is formed in the upper portion of the siphon tank 1, a sealing cover 16 is installed on the water filling port 15, an exhaust pipe 13 is installed between the water filling port 15 and a liquid inlet 10 on the siphon tank 1, a one-way valve 14 is installed on the exhaust pipe 13, the one-way valve 14 can discharge gas in the siphon tank 1 outwards, so that the vacuum degree in the siphon tank 1 is higher, meanwhile, external gas cannot enter the siphon tank 1 through the exhaust pipe 13, a liquid level meter 9 is installed on one side of the siphon tank 1, the liquid level meter 9 can facilitate personnel to observe the liquid level in the siphon tank 1, a base 12 is arranged at the bottom of the siphon tank 1, and the arrangement of the base 12 can increase the placement stability of the siphon tank 1.

Referring to fig. 3, a slag discharging hole 18 is formed at one side of the siphon tank 1 opposite to the lower end of the filter screen plate 17, the slag discharging hole 18 is arranged to conveniently discharge impurities on the filter screen plate 17 outwards, a slag discharging hole door plate 19 is arranged on the slag discharging hole 18, a sealing ring 21 is sleeved in the slag discharging hole door plate 19, the sealing ring 21 is arranged to improve the sealing performance of the slag discharging hole 18, the water leakage and air leakage probability of the siphon tank 1 is reduced, locking screws 20 are arranged at four corners of the slag discharging hole door plate 19, the slag discharging hole door plate 19 is fixed on the siphon tank 1 through the locking screws 20, the slag discharging hole door plate 19 can conveniently clean the impurities regularly, and the service life of the device is prolonged.

The working principle of the utility model is as follows:

firstly, the sealing cover 16 is opened, water is filled into the siphon tank 1 through the water filling port 15, then, after the centrifugal pump 8 is started, the water in the siphon tank 1 is sequentially pumped out from the secondary suction main pipe 5 and the secondary suction branch pipe 6, the water level in the siphon tank 1 is gradually reduced, the air pressure in the cylinder is gradually reduced to form negative pressure, the water in the phenol-containing waste liquid tank 3 is sucked into the siphon tank 1 through the primary suction pipe 2 due to the negative pressure effect, the water in the siphon tank 1 is gradually increased, the water suction system is in an operating state, air in the tank is brought out of the cylinder in a bubble form along with the running time, and the normal operating state is reached, so that the negative pressure water suction of the centrifugal pump 8 is changed into positive pressure water suction, thereby ensuring the higher working efficiency of the centrifugal pump 8, when the water is filled or the negative pressure water suction is carried out, the impurities entering the siphon tank 1 are intercepted by the filter screen 17, and after the use is finished, the impurities on the filter screen 17 are discharged from the slag discharge port 18 by personnel opening the slag discharge port 19.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a vacuum siphon device, includes siphon jar (1), contains phenol waste liquid jar (3), contains phenol pit (4), centrifugal pump (8) and filter screen board (17), its characterized in that: liquid inlet (10) have been seted up on the upper portion of siphon jar (1), be connected with one-level suction tube (2) on liquid inlet (10), the other end of one-level suction tube (2) is connected with phenol-containing waste liquid jar (3) that set up in phenol-containing pit (4), liquid outlet (11) are seted up to the side bottom of siphon jar (1), install second grade suction main pipe (5) on liquid outlet (11), be connected with second grade suction branch pipe (6) on second grade suction main pipe (5), install control valve (7) on second grade suction branch pipe (6), the other end of second grade suction branch pipe (6) is connected with centrifugal pump (8), siphon jar (1) internally mounted has filter screen plate (17).

2. A vacuum siphon device according to claim 1, characterised in that: the filter screen plate (17) is obliquely arranged in the siphon tank (1), and one side of the siphon tank (1) is opposite to the lower end of the filter screen plate (17) and provided with a slag discharge port (18).

3. A vacuum siphon device according to claim 2, characterised in that: the slag discharging device is characterized in that a slag discharging port door plate (19) is arranged on the slag discharging port (18), a sealing ring (21) is sleeved in the slag discharging port door plate (19), locking screws (20) are arranged at four corners of the slag discharging port door plate (19), and the slag discharging port door plate (19) is fixed on the siphon tank (1) through the locking screws (20).

4. A vacuum siphon device according to claim 1, characterised in that: a water filling port (15) is formed in the upper portion of the siphon tank (1), and a sealing cover (16) is arranged on the water filling port (15).

5. A vacuum siphon device according to claim 1, characterised in that: an exhaust pipe (13) is arranged between the water injection port (15) and the liquid inlet (10) on the siphon tank, and a one-way valve (14) is arranged on the exhaust pipe (13).

6. A vacuum siphon device according to claim 1, characterised in that: a liquid level meter (9) is arranged on one side of the siphon tank (1), and a base (12) is arranged at the bottom of the siphon tank (1).