CN212395967U

CN212395967U - Sand remover

Info

Publication number: CN212395967U
Application number: CN202020128233.0U
Authority: CN
Inventors: 刘凯洋; 张克宁; 殷曰帅
Original assignee: Shengli Oilfield Liyuan Petroleum Equipment Manufacturing Co ltd
Current assignee: Shengli Oilfield Liyuan Petroleum Equipment Manufacturing Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2021-01-26
Anticipated expiration: 2030-01-20

Abstract

The utility model discloses a desander, which comprises a swirler and a sand hopper communicated with the swirler, wherein a liquid inlet flange is arranged above the side part of the swirler, and a liquid discharge flange is arranged at the top part of the swirler; a small sand hopper is connected between the cyclone and the sand hopper through a pipeline; the top and the bottom of the small sand hopper are respectively provided with a feeding valve and a discharging valve; a flushing flange is arranged above the side part of the small sand hopper; the flushing flange is connected with a flushing pipe through a one-way valve; and a closing valve is arranged on the flushing pipe. The utility model discloses a desander adopts two valve bodies to open and shut in turn, can make the water level ratio lower in the sandbox, and can keep apart miscellaneous grain and the swirler of separation, and in addition, it is simple and convenient to the swirler cleaning process.

Description

Sand remover

Technical Field

The utility model relates to a solid-liquid wastewater separator, concretely relates to desander belongs to solid-liquid wastewater separation equipment technical field.

Background

A means for separating particles from the gas, water or wastewater stream during the desander; the miscellaneous particles comprise dregs formed by sand grains, stones, coal slag or other heavy solids, and the sedimentation speed and the density of the miscellaneous particles are far greater than those of organic matters which are easy to rot in water; the existing desander is generally composed of a cyclone and a sand hopper, and foreign particles are discharged to the sand hopper through the cyclone and then discharged; however, the water level in the sand hopper is high, the solid-liquid separation in the later period is complex, and after the sand hopper works for a certain period, after the sundry grains in the sand setting box are accumulated more, the sundry grains are easy to flow back to the liquid outlet, the sand removing effect cannot be achieved, in addition, after the sand remover works for a period of time, the interior of the sand hopper needs to be cleaned, and the cleaning mode of the existing sand remover is complex.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a desander adopts two valve bodies to open and shut in turn, can make the water level ratio lower in the sandbox, and in addition, it washs simple and conveniently to the swirler.

The utility model discloses a desander, including the swirler, and the sand fill that communicates with the swirler, the feed liquor flange sends the processing water into the swirler in, and high-speed rotatory in the swirler, because the effect of centrifugal force, heavier material (sand grain etc.) is under the effect of centrifugal force, discharge from the bottom downwards along conical cyclone tube inner wall; a liquid inlet flange is arranged above the side part of the cyclone, and a liquid discharge flange is arranged at the top of the cyclone; a small sand hopper is connected between the cyclone and the sand hopper through a pipeline; the top and the bottom of the small sand hopper are respectively provided with a feeding valve and a discharging valve; a flushing flange is arranged above the side part of the small sand hopper; the flushing flange is connected with a flushing pipe through a one-way valve; be provided with the shutoff valve on the flushing pipe, through set up little sand fill between swirler and sand fill, carry out the buffering in the middle of the miscellaneous grain, the relief valve is closed earlier, earlier carry out miscellaneous grain collection to little sand fill, collect a period of threshold value time after, the feed valve is closed, the relief valve work, thereby gather materials earlier through the swirler bottom, the relief valve is arranged the material fast and is expected the back, close the relief valve, thereby the feed valve is opened again and is gathered materials, it can be with the miscellaneous material of separation and the thorough separation of swirler, when using a period of time and need wash the swirler, open the shutoff valve, wash water through forcing to pour into in the swirler through high-order water tank, wash water and carry out the backwash to swirler inboard, accomplish fast and wash.

In a preferred embodiment, the inlet valve and the outlet valve are solenoid valves controlled by an electronic control system, and the electronic control system interlocks the solenoid valves, that is, one of the solenoid valves is required to be in a closed state.

As a preferred embodiment, the drain flange is connected to a lower level water inlet flange through a buffer tank; the bottom of the buffer tank is connected with a flushing pipe flange, the drainage flange discharges the sand-removing water, the sand-removing water is firstly fed into the buffer tank for buffering, the sand-removing water is discharged through the drainage pipe at the other end of the buffer tank after reaching a certain height in the buffer tank, and the buffer tank is used as a flushing water tank of the swirler when needing to be cleaned.

As a preferred embodiment, the top and the bottom of the small sand hopper are both of a closed structure, and a connecting flange is arranged on the closed surface.

Compared with the prior art, the utility model discloses a desander adopts two valve bodies to open and shut in turn, can make the water level ratio lower in the sandbox, and can keep apart miscellaneous grain and the swirler of separation, and in addition, it is simple and convenient to the swirler cleaning process.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 2 is a schematic view of the overall structure of another embodiment of the present invention.

Detailed Description

Example 1:

as shown in fig. 1, the utility model discloses a desander, including swirler 1, and sand hopper 2 communicated with swirler, the feed liquor flange sends the treated water into swirler in, and high-speed rotation in swirler, because of the effect of centrifugal force, heavier material (sand grain etc.) is under the effect of centrifugal force, discharge from the bottom downwards along conical cyclone tube inner wall; a liquid inlet flange 3 is arranged above the side part of the cyclone 1, and a liquid discharge flange 4 is arranged at the top part of the cyclone 1; a small sand hopper 5 is connected between the cyclone 1 and the sand hopper 2 through a pipeline; the top and the bottom of the small sand hopper 5 are respectively provided with a feeding valve 6 and a discharging valve 7; a washing flange 7 is arranged above the side part of the small sand hopper 5; the flushing flange 7 is connected with a flushing pipe 9 through a one-way valve 8; be provided with shutoff valve 10 on the flushing pipe 9, through set up little sand fill 5 between swirler 1 and sand fill 2, cushion in the middle of carrying out miscellaneous grain, the blow-off valve closes earlier, carry out miscellaneous grain collection to little sand fill earlier, collect a period of threshold value time after, the feed valve closes, the blow-off valve work, thereby gather materials earlier through the swirler bottom, the blow-off valve is arranged the material fast and is followed, close the blow-off valve, thereby the feed valve is opened again and is gathered materials, it can be with the miscellaneous grain of separating and swirler thoroughly separation, when using a period of time and need wash the swirler, open the shutoff valve, through high-order water tank force-feed washing water in to the swirler, wash water and carry out the thrust on the swirler inboard, accomplish fast and wash.

Wherein, the feed valve 6 and the discharge valve 7 are electromagnetic valves controlled by an electric control system, and the electric control system interlocks the electromagnetic valves, namely, one electromagnetic valve of the two electromagnetic valves is in a closed state. The top and the bottom of the small sand hopper 5 are both of a closed structure, and a connecting flange is arranged on the closed surface.

In a further embodiment, as shown in fig. 2, the drain flange 4 is connected to a lower level water inlet flange by a buffer tank 11; the bottom of the buffer tank 11 is connected with a flange of the flushing pipe 9, the drainage flange discharges the sand removing water, the sand removing water is firstly sent into the buffer tank for buffering, the sand removing water is discharged through the drainage pipe at the other end of the buffer tank after reaching a certain height in the buffer tank, and the buffer tank is used as a flushing water tank of the swirler when the sand removing water needs to be cleaned.

The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.

Claims

1. A desander comprises a cyclone and a sand hopper communicated with the cyclone, wherein a liquid inlet flange is arranged above the side part of the cyclone, and a liquid discharge flange is arranged at the top of the cyclone; the method is characterized in that: a small sand hopper is connected between the cyclone and the sand hopper through a pipeline; the top and the bottom of the small sand hopper are respectively provided with a feeding valve and a discharging valve; a flushing flange is arranged above the side part of the small sand hopper; the flushing flange is connected with a flushing pipe through a one-way valve; and a closing valve is arranged on the flushing pipe.

2. The desander as defined in claim 1, further comprising: the feeding valve and the discharging valve are electromagnetic valves controlled by an electric control system.

3. The desander as defined in claim 1, further comprising: the liquid discharge flange is connected to a lower-level water inlet flange through a buffer tank; the bottom of the buffer tank is connected with a flushing pipe flange.

4. The desander as defined in claim 1, further comprising: the top and the bottom of the small sand hopper are both of a closed structure, and a connecting flange is arranged on the closed surface.