阅读说明：本技术 一种分流过滤污水处理装置 (Bypass flow filtering sewage treatment device ) 是由 于国江 李晶 张化庆 郭英健 丛日东 杨凤凯 姚炳龙 孙庆伟 周敏杰 于 2019-11-11 设计创作，主要内容包括：本发明提出一种分流过滤污水处理装置。涉及油田污水处理领域。壳体下部有进水管,壳体侧面有出水管,壳体内设有过滤网,圆筒状的过滤网上下面与壳体固定连接,过滤网内设有活塞,活塞中心下部连接电机轴,电机轴密封穿过壳体下部连接设于壳体下部的直线电机,壳体上部,过滤网内侧有管道连接电磁阀和压力表；活塞面上开有若干通孔。本发明具有如下有益效果：本发明通过设置与过滤网间隙贴合的活塞推动附着在过滤网上的拦截物,通过电磁阀管路流出,排水量很少,清洗彻底,清洗过程中过滤不间断,不影响正常生产,过滤效果不下降,无需反洗水及其附属设备,避免普通过滤器需要停产拆洗的过程,提高了生产效率,节约水源,降低生产成本。(The invention provides a sewage treatment device with flow-dividing and filtering functions. Relates to the field of oilfield sewage treatment. The lower part of the shell is provided with a water inlet pipe, the side surface of the shell is provided with a water outlet pipe, a filter screen is arranged in the shell, the upper surface and the lower surface of the cylindrical filter screen are fixedly connected with the shell, a piston is arranged in the filter screen, the lower part of the center of the piston is connected with a motor shaft, the motor shaft penetrates through the lower part of the shell in a sealing manner and is connected with a linear motor arranged at the lower part of the; the piston surface is provided with a plurality of through holes. The invention has the following beneficial effects: according to the invention, the piston which is in clearance fit with the filter screen is arranged to push the interception objects attached to the filter screen to flow out through the electromagnetic valve pipeline, so that the drainage quantity is small, the cleaning is thorough, the filtration is uninterrupted in the cleaning process, the normal production is not influenced, the filtration effect is not reduced, backwashing water and accessory equipment thereof are not needed, the process that the common filter needs to be disassembled and cleaned after production halt is avoided, the production efficiency is improved, the water source is saved, and the production cost is reduced.)

1. A split-flow filtration sewage treatment device comprises a shell (1), and is characterized in that: the water inlet pipe (10) is arranged at the lower part of the shell (1), the water outlet pipe (2) is arranged on one side surface of the shell (1), the cylindrical filter screen (8) is arranged in the shell (1), the upper surface and the lower surface of the cylindrical filter screen (8) are fixedly connected with the shell (1), the piston (5) is arranged in the filter screen (8), the lower part of the center of the piston (5) is connected with the motor shaft (7), the motor shaft (7) penetrates through the lower part of the shell (1) in a sealing manner and is connected with the linear motor (11) arranged at the lower part of the shell (1), the upper part of the shell (1) is;

the piston (5) is characterized in that the surface of the piston (5) is provided with a plurality of through holes (6);

the filter screen (8) is formed by welding warp strips (14) and weft strips (13) made of stainless steel, the warp strips (14) are triangular stainless steel strips, one triangular surface of each warp strip (14) is welded with the corresponding weft strip (13), and one opposite angle faces the inside;

the piston (5), piston (5) circumference open have triangle recess (15), its angle and adjacent distance be the same with the angle between every two warp strips (14) and between two warp strips (14).

2. The flow-through filtered wastewater treatment plant of claim 1, wherein: a pipeline is respectively arranged between the water inlet pipe (10) and the water outlet pipe (2) to be connected with a pressure difference controller (12).

3. The flow-through filtered wastewater treatment plant of claim 1, wherein: the outer wall of the water inlet pipe (10) is pasted with a magnet ring (9).

The technical field is as follows:

the invention relates to the field of oilfield sewage treatment, in particular to a sewage treatment device with flow-dividing and filtering functions.

Background art:

the key equipment that each process flow of oil field of filter often used, the filter screen that is used for mechanical filter among the sewage treatment usually is after work a period, the filter effect descends, the flow diminishes, it washs to need to open the filter, perhaps the design has the backwash pipeline, carry out the backwash to the filter screen with the backwash pump, lead to normal production to stop, extravagant a large amount of water sources simultaneously, the backwash effect is totally leaned on rivers and is washed, under the condition that pressure is the same, rivers can flow through stopping up not serious place and flow through, it is still unclean to block up serious place.

The invention content is as follows:

in order to solve the above problems, the present invention provides a sewage treatment apparatus with a bypass flow filter.

The technical scheme of the invention is as follows: a sewage treatment device with flow-dividing and filtering functions comprises a shell, wherein a water inlet pipe is arranged at the lower part of the shell, a water outlet pipe is arranged on one side surface of the shell, a cylindrical filtering net is arranged in the shell, the upper surface and the lower surface of the cylindrical filtering net are fixedly connected with the shell, a piston is arranged in the filtering net, the lower part of the center of the piston is connected with a motor shaft, the motor shaft penetrates through the lower part of the shell in a sealing mode and is connected with a linear motor arranged at the lower;

the piston is provided with a plurality of through holes on the surface;

the filter screen is formed by welding warp strips and weft strips made of stainless steel, the warp strips are triangular stainless steel strips, one triangular surface of each warp strip is welded with the corresponding weft strip, and one opposite corner faces the inside;

the piston, the piston circumference is opened has triangle recess, its angle and adjacent distance be the same with the distance between every two warp strips and the angle between two warp strips.

And a pipeline is respectively arranged between the water inlet pipe and the water outlet pipe and is connected with a pressure difference controller.

The outer wall of the water inlet pipe is pasted with a magnet ring.

The invention has the following beneficial effects: according to the invention, the piston attached to the filter screen is pushed by the piston in clearance fit with the filter screen, the filter screen flows out through the electromagnetic valve pipeline, the water discharge is less, the triangular groove of the piston is cut into the gap of the filter screen to clean the filter screen, the cleaning is thorough and comprehensive, no dead angle is left, the filtration is uninterrupted in the cleaning process, the normal production is not influenced, the filtration effect is not reduced, backwashing water and accessory equipment thereof are not needed, the process that the common filter needs to be disassembled and cleaned after being stopped production is avoided, the production efficiency is improved, the water source is saved, and the production cost is reduced.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of a filter screen according to the present invention;

FIG. 3 is a bottom view of the piston of the present invention;

figure 4 is a working diagram of the invention.

In the figure, 1-shell, 2-water outlet pipe, 3-electromagnetic valve, 4-pressure gauge, 5-piston, 6-through hole, 7-motor shaft, 8-filter screen, 9-magnet ring, 10-water inlet pipe, 11-linear motor, 12-pressure difference controller, 13-weft bar, 14-warp bar and 15-triangular groove.

The specific implementation mode is as follows:

the invention will be further described with reference to the accompanying drawings in which:

referring to fig. 1 and fig. 2-4, a sewage treatment device with bypass filtration comprises a shell 1, a water inlet pipe 10 is arranged at the lower part of the shell 1, a water outlet pipe 2 is arranged at one side surface of the shell 1, a cylindrical filter screen 8 is arranged in the shell 1, the upper surface and the lower surface of the cylindrical filter screen 8 are fixedly connected with the shell 1, a piston 5 is arranged in the filter screen 8, the lower part of the center of the piston 5 is connected with a motor shaft 7, the motor shaft 7 hermetically penetrates through the lower part of the shell 1 and is connected with a linear motor 11 arranged at the lower part of the shell 1, the upper part of;

the piston 5 is characterized in that the surface of the piston 5 is provided with a plurality of through holes 6;

the filter screen 8 is formed by welding a warp strip 14 and a weft strip 13 which are made of stainless steel, the warp strip 14 is a triangular stainless steel strip, one triangular surface of the warp strip 14 is welded with the weft strip 13, and one opposite corner faces the inside;

the piston 5, piston 5 circumference open have triangle recess 15, its angle and adjacent distance, and every two warp strips 14 between the angle between two warp strips 14 is the same, namely every triangle recess 15 all around the piston 5 all with warp strip 14 triangle-shaped both sides inside facing to the laminating, when the piston 5 moved upwards, triangle recess 15 will be attached to two adjacent blocking in warp strip 14 and push upwards the portion, discharge outside the casing 1 through the solenoid valve that opens, accomplish the action of washing the filter screen, simultaneously, because open on the piston 5 has through-hole 6, in the whole cleaning process, the blocking is promoted by piston 5 and is separated from filter screen 8, the liquid that the sewage stream that the inlet tube 10 got in flows through-hole 6 carries outside the casing 1 through the pipeline of solenoid valve 3.

A pipeline is respectively connected between the water inlet pipe 10 and the water outlet pipe 2 and is connected with a pressure difference controller 12.

The outer wall of the water inlet pipe 10 is pasted with a magnet ring 9.

When in normal filtration, the piston is positioned at the lowest part, the sewage flowing in from the water inlet pipe passes through the through hole on the piston, passes through the filter screen for filtration and flows out of the water outlet pipe, when the pressure difference controller senses that the pressure difference of the inlet and the outlet reaches a designed value, the linear motor is started, the motor shaft moves upwards to push the piston to move upwards to the top of the filter screen, meanwhile, the electromagnetic valve is opened, at the moment, sewage entering the water inlet pipe flows out from the through hole on the piston through the electromagnetic valve pipeline with the interceptor, on the other hand, the sewage flows through the filter screen below the piston to normally play a role of filtering, the normal filtering is uninterrupted in the cleaning process, of course, a part of the sewage flowing through the through hole on the piston also flows through the filter screen and enters the water outlet pipe in the cleaning process, the part of sewage is also the sewage intercepted and filtered by the normal filter screen, the filtering effect is not influenced, and after the cleaning is finished, the piston moves downwards and returns to the initial position.

The iron in the sewage is cut and is adsorbed by the magnet ring at the inlet tube, can not get into inside the filter to prevent that the card from dying the filter screen, getting into the interior wearing and tearing impeller of sewage pump, the manometer is the same as demonstration filter screen internal pressure.

According to the invention, the piston attached to the filter screen is pushed by the piston in clearance fit with the filter screen, the filter screen flows out through the electromagnetic valve pipeline, the water discharge is less, the triangular groove of the piston is cut into the gap of the filter screen to clean the filter screen, the cleaning is thorough and comprehensive, no dead angle is left, the filtration is uninterrupted in the cleaning process, the normal production is not influenced, the filtration effect is not reduced, backwashing water and accessory equipment thereof are not needed, the process that the common filter needs to be disassembled and cleaned after being stopped production is avoided, the production efficiency is improved, the water source is saved, and the production cost is reduced.