阅读说明：本技术 一种应用于大型输调水管道中的过滤装置及其操作方法 (Filtering device applied to large-scale water conveying and transferring pipeline and operation method thereof ) 是由 杨何军 李剑锋 赵承宗 罗洪兵 李剑勇 张涛 韩军刚 于 2019-08-23 设计创作，主要内容包括：本发明涉及管道输调水资源技术领域,具体为一种应用于大型输调水管道中的过滤装置及其操作方法,其目的在于克服现有技术的不足,提供一种应用于大型输调水管道中的过滤装置及其操作方法,以有效解决输水管路中控制阀门的卡阻问题及系统的流量失衡问题,所述露天水库调节水池通过第二输水管道与终端需水点连接,所述第二输水管道上沿露天水库调节水池到终端需水点的方向依次安装有闸阀、检修球阀和流量调节阀,所述检修球阀与流量调节阀之间的第二输水管道上安装有过滤装置；其有益效果在于：安装了过滤装置后,能防止露天水库调节水池的水位上升的安全隐患,同时也不影响正常的生产,有效确保了管网系统的安全及节约了生产成本。(The invention relates to the technical field of pipeline water delivery and transfer resources, in particular to a filtering device applied to a large-scale water delivery and transfer pipeline and an operation method thereof, aiming at overcoming the defects of the prior art and providing the filtering device applied to the large-scale water delivery and transfer pipeline and the operation method thereof so as to effectively solve the problems of jamming of a control valve in the water delivery pipeline and flow unbalance of a system, wherein an open-air reservoir adjusting water tank is connected with a terminal water demand point through a second water delivery pipeline, a gate valve, an overhaul ball valve and a flow regulating valve are sequentially arranged on the second water delivery pipeline along the direction from the open-air reservoir adjusting water tank to the terminal water demand point, and the filtering device is arranged on the second water delivery pipeline between the overhaul ball valve and the flow regulating valve; the beneficial effects are that: after the filtering device is installed, the potential safety hazard that the water level of the open reservoir adjusting water tank rises can be prevented, meanwhile, the normal production is not influenced, the safety of a pipe network system is effectively ensured, and the production cost is saved.)

1. The utility model provides a filter equipment for in large-scale defeated water transfer pipeline, needs water spot (5) including water lift pump (1), open-air reservoir regulation pond (3) and terminal, water lift pump (1) is connected with open-air reservoir regulation pond (3) through first water pipeline (2), open-air reservoir regulation pond (3) need water spot (5) through second water pipeline (4) and terminal to be connected, gate valve (6), maintenance ball valve (7) and flow control valve (9) are installed in proper order to the direction that needs water spot (5) to terminal along open-air reservoir regulation pond (3) on second water pipeline (4), its characterized in that: install filter equipment (8) on second conduit (4) between maintenance ball valve (7) and flow control valve (9), install level sensor (10) in open-air reservoir regulation pond (3), install flow sensor (11) on second conduit (4) of flow control valve (9) rear end, level sensor (10) are connected with controller (12) with flow sensor (11) through the mode of signal of telecommunication.

2. The filtering device applied to the large-scale water delivery and transfer pipeline according to claim 1, wherein: filter equipment (8) are open casing (801) including the top, the top of casing (801) is connected with blind plate lid (804) through screw (808), be connected with inlet tube (802) on the left end face of casing (801), be connected with outlet pipe (803) on the right-hand member face of casing (801), the internally mounted of casing (801) has the filter, the filter includes filter screen (805), the both sides of filter screen (805) are connected with the fixed frame of filter screen (806) through bolt and nut (807).

3. The filtering device applied to the large-scale water delivery and transfer pipeline according to claim 1, wherein: the material of filter screen (805) is the stainless steel, and the aperture of filter screen (805) is 2mm, the thickness of the fixed frame of filter screen (806) is 5 mm.

4. An operation method of a filtering device applied to a large-scale water conveying and transferring pipeline is characterized by comprising the following steps:

step (1): in normal operation, the maintenance ball valve (7) is in a full-open state, and when the filtering device (8) is cleaned, the maintenance ball valve (7) in front of the maintenance ball valve is completely closed and then can be cleaned and replaced;

step (2): in rainy seasons, when an external water source is gathered into the open-air reservoir regulating reservoir (3), if the water level value in the open-air reservoir regulating reservoir (3) rises too fast, indicating that sundries enter the filtering device, the maintenance ball valve (7) is closed in time, and the filtering device (8) is cleaned and replaced, so that the flow regulating valve (9) is effectively protected;

and (3): when no external water source is gathered into the reservoir, if the water delivery and transfer flow value is balanced, the situation that a filtering device (8) arranged between a flow regulating valve (9) in front of a terminal water demand point (5) and an overhauling ball valve (7) is smooth is indicated, and no sundries enter into the reservoir to be blocked;

and (4): under the condition that the operation parameters of the water lift pump (1) are unchanged and the conveying flow value is unchanged, and when no external water source is gathered in the open-air reservoir regulating reservoir (3), if the water level value of the reservoir rises too fast, control measures are taken in time, the maintenance ball valve (7) is completely closed, and the filtering device (8) is cleaned and replaced.

Technical Field

The invention relates to the technical field of pipeline water delivery and transfer resources, in particular to a filtering device applied to a large-scale water delivery and transfer pipeline and an operation method thereof.

Background

Water transfer across watersheds is a water transfer mode for reasonably developing and utilizing water resources, and means that a water-deficient area of other watersheds is supplemented with a water source in a multi-water area of a certain watershed. And water transfer is often accomplished by pumping stations. At present, cross-basin water transfer engineering in China has a considerable scale. The yellow diversion engineering of Wanjiazhai of Shanxi province belongs to the water diversion engineering of cross-drainage basin, is drawn water by the Wanjiazhai reservoir of yellow river, supply water to Taiyuan, great identity and 3 areas of Shu separately, the total length of the diversion line is about 452km, the annual design diversion volume is 12 hundred million m 3. Dongdeep engineering takes Dongjiang water from QiaoTou town of Guangdong Dongguan city, supplies water to Shenzhen through 8 cascade stations such as Dongjiang, Sema and Yangtian, and sends the Shenzhen to hong Kong, the whole length of the circuit is 83km, 11 hundred million m3 of water is supplied to hong Kong every year, and the water accounts for 70 percent of the total water consumption of hong Kong. The yellow river water is introduced from Boxing county in Shandong, the whole length of a line is 290km, 4 stair stations are built along the line after the yellow river water is introduced from Boxing county in Shandong, the Weifang and the Qingdao are 4 cities, 34 large-scale units are installed, 30 ten thousand meters of water is supplied to the Qingdao every day, 3 is used for stair pump stations, and the normal water transfer of the whole project can be influenced when any one of the stair pump stations is in trouble. On the other hand, the pumping station can save thousands of yuan of operating cost every year when improving 1% operating efficiency. Therefore, the engineering requires that the pump station improves the operation efficiency and reduces the water transfer cost on the premise of ensuring the operation reliability.

In the water delivery and transfer system, the safety of the pipeline is particularly important, but the outdoor adjusting water tank is often subjected to sundries entering the pipeline connected with the adjusting water tank due to the limitation of geographical positions and natural conditions, and along the water flow direction, the valve pipeline is always blocked along with the water flow to the joint of the pipeline and the valve, so that adverse effects are caused. Therefore, the filter is arranged in front of the flow regulating valve at the water-requiring point terminal of the water pipeline, and has important significance for the safe use of the water pipeline equipment.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a filtering device applied to a large-scale water conveying and adjusting pipeline and an operation method thereof so as to effectively solve the problems of blockage of a control valve in a water conveying pipeline and flow unbalance of a system.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a be applied to filter equipment among large-scale defeated water transfer pipeline, needs water spot 5 and controller 12 including water lift pump 1, open-air reservoir regulation pond 3, terminal, water lift pump 1 is connected with open-air reservoir regulation pond 3 through first water pipeline 2, open-air reservoir regulation pond 3 needs water spot 5 through second water pipeline 4 and terminal to be connected, gate valve 6, maintenance ball valve 7 and flow control valve 9, its characterized in that are installed in proper order to the direction that needs water spot 5 to the terminal along open-air reservoir regulation pond 3 on second water pipeline 4: install filter equipment 8 on the second conduit 4 between maintenance ball valve 7 and the flow control valve 9, install level sensor 10 in open-air reservoir regulation pond 3, install flow sensor 11 on the second conduit 4 of flow control valve 9 rear end, level sensor 10 and flow sensor 11 pass through the mode of signal of telecommunication and are connected with controller 12.

Filter equipment 8 includes that the top is open casing 801, the top of casing 801 is connected with blind plate lid 804 through screw 808, be connected with inlet tube 802 on the left end face of casing 801, be connected with outlet pipe 803 on the right-hand member face of casing 801, the internally mounted of casing 801 has the filter, the filter includes filter screen 805, the both sides of filter screen 805 are connected with the fixed frame 806 of filter screen through bolt and nut 807. The fixed frame 806 of the filter screen is used for preventing the filter screen 805 from being torn or even shrunk due to large water pressure or blockage, so that the filter area is reduced, the filter effect is poor, and the downstream valve is blocked or even can not act.

The material of filter screen 805 is stainless steel, and the aperture of filter screen 805 is 2mm, the thickness of the fixed frame 806 of filter screen is 5 mm.

And a plurality of groups of filtering devices 8 are arranged on the second water conveying pipeline 4 between the maintenance ball valve 7 and the flow regulating valve 9.

An operation method of a filtering device applied to a large-scale water conveying and transferring pipeline is characterized in that:

in normal operation, the service ball valve 7 is in a fully open state, and when the filtering device 8 is cleaned, the service ball valve 7 in front of the filtering device can be completely closed and then cleaned and replaced.

The water level sensor 10 is used for measuring the water level of the regulated water tank 3 of the open-air reservoir and transmitting the measured water level value to the controller 12 in the form of an electric signal, the controller 12 displays the measured water level value on a display screen of the controller 12, the flow sensor 11 is used for measuring the flow value in the second water conveying pipeline 4 and transmitting the measured flow value to the controller 12 in the form of an electric signal, and the controller 12 displays the measured flow value on the display screen of the controller 12.

Filter equipment 8 includes that the top is open casing 801, the top of casing 801 is connected with blind plate lid 804 through screw 808, be connected with inlet tube 802 on the left end face of casing 801, be connected with outlet pipe 803 on the right-hand member face of casing 801, the internally mounted of casing 801 has the filter, the filter includes filter screen 805, the both sides of filter screen 805 are connected with the fixed frame 806 of filter screen through bolt and nut 807. The fixed frame 806 of the filter screen is used for preventing the filter screen 805 from being torn or even shrunk due to large water pressure or blockage, so that the filter area is reduced, the filter effect is poor, and the downstream valve is blocked or even can not act.

The material of filter screen 805 is stainless steel, and the aperture of filter screen 805 is 2mm, the thickness of the fixed frame 806 of filter screen is 5 mm.

In rainy season, when an external water source is converged into the open-air reservoir regulating reservoir 3, if the water level value in the open-air reservoir regulating reservoir 3 rises too fast, the situation that sundries enter the filtering device is indicated, the maintenance ball valve 7 is closed in time, and the filtering device 8 is cleaned and replaced, so that the flow regulating valve 9 is effectively protected, and the cleaning and replacement are convenient and fast, and the influence on the normal water conveying and regulating process control can be avoided.

When no external water source is gathered into the reservoir, if the flow value in the second water conveying pipeline 4 is balanced with the flow conveyed by the water lifting pump 1, the situation that the filtering device 8 arranged between the flow regulating valve 9 in front of the terminal water demand point 5 and the maintenance ball valve 7 is smooth is shown, and no foreign matters enter into the blockage.

Under the condition that the operation parameters of the water lift pump 1 are unchanged and the conveying flow value is unchanged, and when no external water source is gathered in the open reservoir adjusting water tank 3, if the water level value of the reservoir rises too fast, control measures should be taken in time, the maintenance ball valve 7 is completely closed, and the filtering device 8 is cleaned and replaced.

When the filtering device 8 is cleaned and replaced, firstly, the inspection ball valve 7 in front of the filtering device is completely closed, then the screw 808 is unscrewed to take down the blind plate cover 804, finally, the filter is taken out for cleaning and maintenance, and the filter is installed after cleaning.

The invention has the beneficial effects that: because the opening degree of the flow regulating valve 9 is adjusted and controlled by the water demand of the terminal water demand point 5, if the filtering device 8 is not installed, when sundries enter the pipeline and then enter the flow regulating valve 9, and the flow regulating valve 9 is damaged, a large amount of time, financial resources, material resources and manpower are consumed for maintenance and treatment, and if the treatment is not good for a long time, the water lift pump 1 needs to be shut down for the safety of the reservoir. After the filtering device 8 is installed, the potential safety hazard that the water level of the open reservoir adjusting water tank 3 rises can be prevented, meanwhile, the normal production is not influenced, the safety of a pipe network system is effectively ensured, and the production cost is saved.

Drawings

FIG. 1 is a schematic view of the arrangement of a connecting pipeline from a water lift pump to a terminal water demand point.

FIG. 2 is a schematic view of the structure of the filter device;

fig. 3 is a schematic structural view of the filter.

Shown in the figure: the water lifting pump comprises a water lifting pump 1, a first water pipeline 2, an open-air reservoir adjusting water tank 3, a second water pipeline 4, a terminal water demand point 5, a gate valve 6, an overhauling ball valve 7, a filtering device 8, a flow adjusting valve 9, a water level sensor 10, a flow sensor 11, a controller 12, a shell 801, a water inlet pipe 802, a water outlet pipe 803, a blind plate cover 804, a filter screen 805, a filter screen fixing frame 806, a bolt nut 807 and a screw 808.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

The components, structures, mechanisms and the like described in the following examples are all conventional commercially available products unless otherwise specified.