CN219209128U - Online quick cleaning filter - Google Patents

Abstract

The utility model discloses an on-line quick-cleaning filter, which comprises a filter cylinder body. The bottom of the filter cylinder body is provided with a conical receiving cylinder, and the top is provided with a top cover. The cone part has an outlet and is connected with a control ball valve. The bottom of the control ball valve is connected with a slag discharge port. The inner wall of the filter cylinder is inclined along the horizontal direction with a filter assembly; It is formed as the liquid inlet part, and the filter cylinder is located above the filter assembly as the liquid outlet part. The filter cylinder is connected to the inlet flange on the side wall of the liquid inlet part, and is connected to the side wall of the liquid outlet part. An outlet flange is connected; a filter detection piece for detecting differential pressure is arranged between the inlet flange and the outlet flange. The utility model has a convenient and compact structure, can quickly clean and filter impurities without stopping the device, saves time and effort, and has certain practicability.

Description

Online quick cleaning filter

technical field

The utility model belongs to the technical field of auxiliary equipment for treatment and filtration of produced water in oil and gas fields, and in particular relates to an online quick-cleaning filter.

Background technique

At present, a large amount of produced water is produced during the development of oil and gas fields. Due to the complex composition and high salinity of the produced water in oil and gas fields, a certain proportion of chemicals need to be added during the treatment process. to 110°C), which breaks the dissolution balance of multiple ions in the water system, and a large number of mineral crystal impurities are precipitated, resulting in filter blockage. The clogging of the inlet filter will firstly cause insufficient pump capacity and insufficient cooling, which will further lead to sintering and damage of the pump bearings. If the clogging is serious, the pump motor will be scrapped. In order to ensure the normal operation of the device, the inlet filter of the pump needs to be cleaned in time during daily management, usually once every shift. The main problems of the currently used basket filter are as follows: First, when cleaning the filter screen, all eight bolts of the top gland need to be disassembled, and the sediment at the bottom of the filter basket must be manually removed. The disassembly and cleaning process requires two people to cooperate. The labor intensity is relatively high; second: it takes about 30 minutes to clean up once, and the methanol recovery unit needs to be shut down during the cleaning period, so it cannot run continuously; third: the temperature of the bottom liquid medium of the methanol recovery unit is about 105°C, and there are Safety hazard of burns.

Utility model content

The purpose of the utility model is to provide an online quick-cleaning filter, which solves the problems that the convenience of the cleaning operation is not high enough and there may be certain hidden dangers in the cleaning of the inlet filter of the machine pump.

The technical scheme adopted in the utility model is;

On-line quick-cleaning filter, including a filter cylinder, the bottom of the filter cylinder is provided with a conical receiving cylinder, the top is connected with a top cover, the cone of the conical receiving cylinder is downward, and the conical receiving cylinder is connected with a The slag control assembly, the inner wall of the filter cylinder is inclined along the horizontal direction with a filter assembly; the filter cylinder is located below the filter assembly and the conical receiving cylinder together forms the liquid inlet part, and the filter cylinder is located above the filter assembly. In the liquid outlet part, the filter cylinder is connected with an inlet flange on the side wall of the liquid inlet part and an outlet flange on the side wall of the liquid outlet part; a useful A filter test piece for detecting differential pressure.

The utility model is also characterized in that;

The filter assembly includes a filter screen fixing ring arranged on the inner wall of the filter cylinder, a filter screen is installed on the filter screen fixing ring, and a compression ring is arranged on the end of the filter screen away from the filter screen fixing ring.

The filter detection part is a differential pressure transmitter arranged between the inlet flange and the outlet flange.

A plurality of second mounting holes are provided in the circumferential direction of the top cover, a mounting ring is connected to the top of the filter cylinder, and a plurality of first mounting holes are provided in the circumferential direction of the mounting ring corresponding to the second mounting holes.

The installation ring is integrally formed with the filter cylinder body, and the edge part of the installation ring extends out of the filter cylinder body along the radial direction of the filter cylinder body.

A sealing ring is also arranged between the top cover and the filter cylinder body.

The slag discharge control assembly includes a control ball valve connected to the cone of the conical receiving cylinder, and the end of the control ball valve far away from the conical receiving cylinder is connected with a slag discharge port.

The beneficial effects of the utility model are: the utility model online quick-cleaning filter is suitable for oil and gas field produced water treatment and filtration links in other fields, and has a light structure and easy maintenance, and has strong application prospects. The filter uses the principle of hydraulic scouring to clean and discharge the internal filter screen and the residue left by the filter. The cleaning operation only needs to open the bottom drain valve, without opening the top cover of the filter, which greatly reduces the labor intensity of the staff and reduces safety and environmental protection. Risk, saving pump maintenance costs.

Description of drawings

Fig. 1 is a schematic structural view of the online quick-cleaning filter of the present invention.

In the figure: 1. Top cover, 2. Filter press ring; 3. Seal ring; 4. Filter screen; 5. Filter cylinder; 6. Filter screen fixing ring; 7. Inlet flange; 9. Control ball valve; 10. Slag outlet; 11. Outlet flange; 12. Differential pressure transmission; 13. First mounting hole; 14. Second mounting hole; 15. Mounting ring.

Detailed ways

The on-line quick-cleaning filter of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model designs a fast-cleaning filter through a large number of investigations and multiple research tests on the actual use conditions on the spot. The filter uses the principle of hydraulic flushing to clean and discharge the residue left by the internal filter screen. The cleaning operation only needs to open the control ball valve 9 at the bottom, without opening the top cover of the filter, which greatly reduces the labor intensity of the staff, reduces the safety and environmental risks, and saves the maintenance cost of the pump. Its structure is as follows.

As shown in Figure 1, the online quick-cleaning filter of the present utility model includes a filter cylinder 5 and a conical receiving cylinder 8 integrally formed with it. A mounting ring 15 is formed on the top of the filter cylinder 5, and the installation ring 15 is formed along the filter cylinder. The side wall of the body 5 is everted, and 4 to 8 first mounting holes 13 are evenly opened on the mounting ring 15, and the mounting ring 15 is equipped with a top cover 1, and 4 to 8 second mounting holes 14 are opened on the circumference of the top cover Of course, the number of the first installation hole 13 and the number of the second installation hole 14 are selected according to the actual needs, and it is enough to keep the same.

Embodiment 1;

An annular groove is set between the filter cylinder 5 and the top cover 1 to hold the O-shaped sealing ring 3. During installation, the sealing ring 3 is installed in the annular groove to realize the sealing between the filter cylinder 5 and the top cover 1 .

Embodiment 2;

The conical part of the conical receiving cylinder 8 is downwards, and the conical part is integrally formed with a section of cylindrical passage, which is connected with a control ball valve 9 , and the bottom of the control ball valve 9 is connected with a slag discharge port 10 . The conical receiving cylinder 8 is used to receive and store the filtered impurities for a short time. After the control ball valve 9 is opened, the filtered impurities are discharged through the slag discharge port 10.

Embodiment 3;

The filter cylinder 5 is provided with a filter assembly, specifically: the inner wall of the filter cylinder 5 is inclined along the horizontal direction with a filter screen fixing ring 6; the inclination angle is generally selected as 45 degrees, and can also be adjusted according to actual needs. A filter screen 4 is installed on the filter screen fixing ring 6, and a filter screen pressing ring 2 is arranged on the filter screen 4. It can be set as bolt compression or buckle fastening, etc., in order to make the filter screen 4 stable on the filter screen fixing ring 6 . The filter cylinder 5 is formed as the liquid inlet part together with the conical receiving cylinder 8 below the filter assembly, the filter cylinder 5 is the liquid outlet part above the filter assembly, and the filter cylinder 5 is located on the side of the liquid inlet part. The wall is connected to the inlet flange 7, and the side wall located at the outlet part is connected to the outlet flange 11; the inlet flange 7 is used to connect the process pipeline of the filter medium, and the outlet flange 11 is used to connect the filter medium. the export pipeline. A differential pressure transmission 12 is provided between the inlet flange 7 and the outlet flange 11, and the differential pressure transmission 12 detects the amount of waste residue by measuring the pressure difference between the inlet flange 7 and the outlet flange 11 in real time.

Embodiment 4: The radial dimensions of the inlet flange 7 and the outlet flange 11 are determined according to the flow rate used on site. The size of the filter cylinder 5 is generally selected to be more than five times the radial size of the inlet flange 7 and the outlet flange 11, and the diameter of the slag discharge port of the funnel-shaped bottom bag should be selected to be lower than the diameter of the liquid inlet pipeline to ensure the discharge. The flow rate of the slag can achieve the best effect. The control ball valve 9 generally chooses a quick-opening ball valve to achieve the effect of quick opening and quick closing. The mesh number of the filter screen 4 needs to be selected according to the actual working conditions of the water treatment site. Generally, 10-80 is selected. and can be replaced at any time according to the needs of the working conditions.

The working principle and engineering of the online quick-cleaning filter of the utility model are as follows: the liquid with power to be filtered enters the liquid inlet part through the inlet flange 7, and the relatively clean liquid filtered by the filter net 4 passes through the liquid outlet part. The outlet flange 11 flows out, most of the filter residue is blocked by the filter screen 4 and falls into the conical receiving cylinder 8, and a small part is adsorbed on the filter screen 4. When the control ball valve 9 and the slag discharge port 10 are opened, the outlet method is closed. When the blue 11 is draining, the liquid in the liquid part flows through the filter screen 4 and returns to the conical receiving cylinder 8, so that a small part of the filter residue adsorbed on the filter screen 4 can be washed away by the water flow and dropped to the conical receiving cylinder 8. The effect of automatically cleaning the filter screen 4 is realized.

The online quick-cleaning filter of the utility model, through reasonable design, can quickly clean the filter impurities inside the filter without stopping the device to a certain extent, saving time and effort, and occupying a small space. The structure is convenient and compact, and has good practicability.

Claims (7)

1. The online quick-cleaning filter is characterized by comprising a filter cylinder body (5), wherein a conical bearing cylinder (8) is arranged at the bottom of the filter cylinder body (5), a top cover (1) is connected to the top of the filter cylinder body, the conical part of the conical bearing cylinder (8) is downward, a slag discharging control assembly is connected to the conical part of the conical bearing cylinder (8), and a filter assembly is obliquely arranged on the inner wall of the filter cylinder body (5) along the horizontal direction; the filtering cylinder body (5) is positioned below the filtering assembly and is formed into a liquid inlet part together with the conical receiving cylinder (8), the filtering cylinder body (5) is positioned above the filtering assembly and forms a liquid outlet part, the side wall of the filtering cylinder body (5) positioned in the liquid inlet part is connected with an inlet flange (7) in a conducting manner, and the side wall of the liquid outlet part is connected with an outlet flange (11) in a conducting manner; a filtering detection piece for detecting differential pressure is arranged between the inlet flange (7) and the outlet flange (11).

2. The online quick-cleaning filter according to claim 1, wherein the filter assembly comprises a filter screen fixing ring (6) arranged on the inner side wall of the filter cylinder (5), a filter screen (4) is arranged on the filter screen fixing ring (6), and a compression ring (2) is arranged at one end, far away from the filter screen fixing ring (6), of the filter screen (4).

3. The on-line rapid cleaning filter according to claim 1, characterized in that the filter detection element is a differential pressure transmission (12) arranged between the inlet flange (7) and the outlet flange (11).

4. The online quick-cleaning filter according to claim 1, wherein a plurality of second mounting holes (14) are formed in the circumferential direction of the top cover (1), a mounting ring (15) is connected to the top of the filter cylinder (5), and a plurality of first mounting holes (13) are formed in the circumferential direction of the mounting ring (15) corresponding to the second mounting holes (14).

5. The on-line quick-clean filter according to claim 4, characterized in that the mounting ring (15) is integrally formed with the filter cartridge (5), and that the edge portion of the mounting ring (15) extends out of the filter cartridge (5) in the radial direction of the filter cartridge (5).

6. The on-line rapid cleaning filter according to claim 1, characterized in that a sealing ring (3) is also arranged between the top cover (1) and the filter cylinder (5).

7. The on-line rapid cleaning filter according to claim 1, wherein the slag discharge control assembly comprises a control ball valve (9) connected to the conical portion of the conical receiving cylinder (8), and the control ball valve (9) is connected with a slag discharge port (10) at one end far away from the conical receiving cylinder (8).

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