CN109340076B - Double-pump type one-way single main pipeline anti-blocking water pumping method and system - Google Patents
Double-pump type one-way single main pipeline anti-blocking water pumping method and system Download PDFInfo
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- CN109340076B CN109340076B CN201811299641.6A CN201811299641A CN109340076B CN 109340076 B CN109340076 B CN 109340076B CN 201811299641 A CN201811299641 A CN 201811299641A CN 109340076 B CN109340076 B CN 109340076B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
Abstract
The invention discloses a double-pump type one-way single main pipe anti-blocking water pumping method and a system, wherein a double-pump type one-way single main pipe is adopted, a water pump is not directly connected to the main pipe, but is indirectly connected to the main pipe from the side, and the water flow directions are mutually switched between two stages of water pumping by matching with a main pipe first automatic valve and a main pipe second automatic valve, so that sundries can be cut and discharged through the main pipe after being accumulated to a certain degree, and the blockage is avoided.
Description
Technical Field
The invention relates to a water pumping technology, in particular to a double-pump type one-way single main pipeline anti-blocking water pumping method and a system.
Background
The existing water pumping mode is generally a single-pump unidirectional single-main pipeline type. In the traditional water pumping mode, a water pump is directly connected to a main pipeline, and a separation net is arranged on a water inlet pipe of the main pipeline to separate sundries, so that the sundries are prevented from entering the water pump. Therefore, the existing water pumping mode has the defects, and improvement is needed.
Disclosure of Invention
In view of the above disadvantages, the present invention provides a method and system for pumping water in a double-pump type unidirectional single main pipe with anti-clogging function, wherein the double-pump type unidirectional single main pipe is adopted, the water pump is not directly connected to the main pipe, but is indirectly connected to the main pipe from the side, and the water flow directions are switched with each other between two-stage pumping, so that impurities can be cut and discharged through the main pipe after being accumulated to a certain degree, and clogging is avoided.
The technical scheme adopted by the invention is as follows:
the double-pump type unidirectional single main pipeline anti-blocking water pumping method comprises the following steps:
1) a main pumping pipe is arranged and comprises a main pipe A, a main pipe B and a main pipe C which are sequentially connected, wherein the main pipe B comprises a main pipe B1, a main pipe B2 and a main pipe B3 which are sequentially connected; arranging a main pipe first automatic valve and a main pipe second automatic valve, wherein the main pipe first automatic valve is positioned between the main pipe A and the main pipe B1, and the main pipe second automatic valve is positioned between the main pipe B3 and the main pipe C; arranging a first water pump and a second water pump, wherein a water inlet pipe of the first water pump is connected with the main pipe A, a water outlet pipe of the first water pump is connected with the main pipe B1, a water inlet pipe of the second water pump is connected with the main pipe B3, and a water outlet pipe of the second water pump is connected with the main pipe C; a control device is arranged and is electrically connected with the first water suction pump, the second water suction pump, the main pipe first automatic valve and the main pipe second automatic valve to control the operation of the first water suction pump, the second water suction pump, the main pipe first automatic valve and the main pipe second automatic valve; the inner side of the main pipeline A is provided with an elastic isolation net pipe A for isolating sundries, and a transition space is reserved between the outer side of the elastic isolation net pipe A and the inner side of the main pipeline A; a slitting mechanism is arranged on the inner side of the B2 main pipeline and is used for slitting sundries; the inner side of the B3 main pipeline is provided with a B3 elastic isolation net pipe for isolating sundries, and a transition space is reserved between the outer side of the B3 elastic isolation net pipe and the inner side of the B3 main pipeline; the pressure sensing device A is arranged on the inner side of the main pipeline A, the pressure sensing device A is arranged corresponding to the outer side of the elastic isolation net pipe A, the pressure sensing device B3 is arranged on the inner side of the main pipeline B3, and the pressure sensing device B3 is arranged corresponding to the outer side of the elastic isolation net pipe B3; the pressure sensing device A and the pressure sensing device B3 are electrically connected with a control device;
2) connecting the water inlet of the main pipeline A with a water pumping source, and connecting the water outlet of the main pipeline C with a water pumping receiving ground; the control device controls the first water pump to start, the second water pump to close, the first automatic valve of the main pipe to close and the second automatic valve of the main pipe to open; after entering from the water inlet of the main pipe A, water flow sequentially passes through the main pipe A, the water inlet pipe of the first water suction pump, the water outlet pipe of the first water suction pump, the main pipe B, the second automatic valve of the main pipe and the main pipe C and is finally discharged from the water outlet of the main pipe C; in the process of pumping water, impurities in water flow are isolated by the elastic isolation net pipe A and stay in the main pipe A;
3) when sundries staying in the main pipe A are accumulated to a certain degree and generate a blocking phenomenon, the elastic isolation network pipe A is extruded and expanded and can trigger the pressure sensing device A, and then the control device controls the first water suction pump to be closed, the second water suction pump to be started, the first automatic valve of the main pipe to be opened and the second automatic valve of the main pipe to be closed; after entering from the water inlet of the main pipe A, water flow sequentially passes through the main pipe A, the first automatic valve of the main pipe, the main pipe B, the water inlet pipe of the second water suction pump, the water outlet pipe of the second water suction pump, the main pipe C, and finally is discharged from the water outlet of the main pipe C, impurities originally staying in the main pipe A enter the main pipe B1 through the first automatic valve of the main pipe due to the opening of the first automatic valve of the main pipe C under the action of water flow, and are cut by the cutting mechanism in the main pipe B2 when passing through the main pipe B2, the cut impurities are isolated by the elastic isolation network management of the B3, and finally stay in the main pipe B3;
4) when sundries staying in the main pipe B3 accumulate to a certain degree and generate a blocking phenomenon, the elastic isolation net pipe B3 is extruded and expanded to trigger the pressure sensing device B3, and at the moment, the control device controls the first water suction pump to be started, the second water suction pump to be closed, the first automatic valve of the main pipe to be closed and the second automatic valve of the main pipe to be opened; after entering from the water inlet of the main pipe A, water flow sequentially passes through the main pipe A, the water inlet pipe of the first water suction pump, the water outlet pipe of the first water suction pump, the main pipe B, the second automatic valve of the main pipe and the main pipe C and is finally discharged from the water outlet of the main pipe C; in the process of pumping water, impurities in water flow are isolated by the elastic isolation net pipe A and stay in the main pipe A; and the debris that originally stayed in B3 main pipeline can enter into C main pipeline through being responsible for the second automatic valve because being responsible for opening of second automatic valve under the effect of rivers, and the delivery port of following C main pipeline is discharged at last.
The double-pump type unidirectional single main pipe anti-blocking pumping equipment for implementing the method comprises a main pumping pipe, a main pipe first automatic valve, a main pipe second automatic valve, a first water pump, a second water pump and a control device; the main pumping pipe comprises a main pipe A, a main pipe B and a main pipe C which are sequentially connected, wherein the main pipe B comprises a main pipe B1, a main pipe B2 and a main pipe B3 which are sequentially connected; the main pipe first automatic valve is positioned between the main pipe A and the main pipe B1, and the main pipe second automatic valve is positioned between the main pipe B3 and the main pipe C; the water inlet pipe of the first water suction pump is connected with the main pipe A, the water outlet pipe of the first water suction pump is connected with the main pipe B1, the water inlet pipe of the second water suction pump is connected with the main pipe B3, and the water outlet pipe of the second water suction pump is connected with the main pipe C; the control device is electrically connected with the first water pump, the second water pump, the main pipe first automatic valve and the main pipe second automatic valve and is used for controlling the operation of the first water pump, the second water pump, the main pipe first automatic valve and the main pipe second automatic valve; the inner side of the main pipeline A is provided with an elastic isolation net pipe A for isolating sundries, and a transition space is reserved between the outer side of the elastic isolation net pipe A and the inner side of the main pipeline A; a slitting mechanism is arranged on the inner side of the B2 main pipeline and is used for slitting sundries; the inner side of the B3 main pipeline is provided with a B3 elastic isolation net pipe for isolating sundries, and a transition space is reserved between the outer side of the B3 elastic isolation net pipe and the inner side of the B3 main pipeline; the pressure sensing device A is arranged on the inner side of the main pipeline A, the pressure sensing device A is arranged corresponding to the outer side of the elastic isolation net pipe A, the pressure sensing device B3 is arranged on the inner side of the main pipeline B3, and the pressure sensing device B3 is arranged corresponding to the outer side of the elastic isolation net pipe B3; the pressure sensing device A and the pressure sensing device B3 are electrically connected with the control device.
Preferably, the slitting mechanism comprises four slitting knives, namely an upper slitting knife, a lower slitting knife, a left slitting knife and a right slitting knife, which are uniformly distributed on the inner side of the main pipe of B2, wherein the knife bodies of the slitting knives are in an oval shape with wide middle and narrow two ends in smooth transition, and the cutting edges of the slitting knives are in an arc shape with high middle and low two ends in smooth transition, so that the slitting knives are gradually reduced from the middle to the two ends and finally are fused with the inner side surface of the main pipe of B2.
Preferably, the inner diameter of the main pipe a is the same as that of the main pipe first automatic valve, the inner diameter of the main pipe first automatic valve is the same as that of the main pipe B1, the inner diameter of the main pipe B1 is the same as that of the main pipe B2, the inner diameter of the main pipe B2 is the same as that of the main pipe B3 elastic isolation net pipe, the inner diameter of the main pipe B3 is the same as that of the main pipe second automatic valve, and the inner diameter of the main pipe second automatic valve is the same as that of the main pipe C.
The invention has the following advantages: adopt the one-way single trunk line's of two pump formulas form, the suction pump does not directly insert the trunk line, but indirect edgewise inserts the trunk line, and the cooperation is responsible for first automatic valve, is responsible for the second automatic valve, and between the two-stage process was taken water, rivers direction interconversion for debris are gathered after certain degree, can cut, discharge through the trunk line, avoid blockking up. The isolation net adopts an elastic isolation net pipe, a transition space is reserved between the isolation net and the main pipeline, the transition space is convenient for a water suction pump to pump water and a pressure sensing device to be installed, the pressure sensing device is arranged corresponding to the outer side of the elastic isolation net pipe, the pressure of the elastic isolation net pipe when being extruded and expanded due to excessive accumulation of sundries is monitored, the pressure sensing device can be triggered after the pressure reaches a certain degree, the sundries are dredged in time, and blockage is avoided; in addition, when being directed at dredging anterior segment promptly debris in the main pipeline A, debris can directly arrive at the main pipeline B, trigger the pressure-sensitive device in the main pipeline B immediately easily, when leading to the debris mediation, lack certain transition time, be not convenient for thoroughly dredge debris, produce debris detention phenomenon easily, therefore, design into the main pipeline B1 main pipeline that connects gradually with the main pipeline B, main pipeline B2 and main pipeline B3, and the mechanism is cut in the inboard design of main pipeline B2, cut debris, debris after the mechanism cuts of main pipeline B2, when arriving main pipeline B3 and gathering, can not trigger B3 pressure-sensitive device immediately, thereby certain transition time has been obtained, be convenient for thoroughly dredge debris, avoid producing debris detention phenomenon.
The present invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a first schematic view of the overall structure of the present embodiment;
FIG. 2 is a second schematic view of the overall structure of the present embodiment;
FIG. 3 is a first schematic structural diagram of a slitting mechanism;
FIG. 4 is a second schematic structural view of the slitting mechanism;
in the figure: a, a main pipeline 1; a main pipeline B2; c, a main pipeline 3; b1 main pipe 4; b2 main pipe 5; b3 main pipe 6; a main pipe first automatic valve 7; a main pipe second automatic valve 8; a first suction pump 9; a second water pump 10; a elastic isolation network pipe 11; a slitting mechanism 12; b3 elastic isolation net pipe 13; a, a pressure sensing device 14; b3 pressure sensing device 15; a slitting knife 16.
Detailed Description
Referring to fig. 1 to 4, the anti-clogging pumping method for a dual-pump unidirectional single main pipe provided in this embodiment includes the following steps:
1) a main pumping pipe is arranged and comprises a main pipe A1, a main pipe B2 and a main pipe C3 which are sequentially connected, wherein the main pipe B2 also comprises a main pipe B1 4, a main pipe B2 5 and a main pipe B3 6 which are sequentially connected; arranging a main pipe first automatic valve 7 and a main pipe second automatic valve 8, wherein the main pipe first automatic valve 7 is positioned between the main pipe A1 and the main pipe B1 4, and the main pipe second automatic valve 8 is positioned between the main pipe B3 6 and the main pipe C3; arranging a first water pump 9 and a second water pump 10, wherein a water inlet pipe of the first water pump 9 is connected with a main pipe A1, a water outlet pipe of the first water pump 9 is connected with a main pipe B1 4, a water inlet pipe of the second water pump 10 is connected with a main pipe B3 6, and a water outlet pipe of the second water pump 10 is connected with a main pipe C3; a control device is arranged and is electrically connected with the first water pump 9, the second water pump 10, the main pipe first automatic valve 7 and the main pipe second automatic valve 8 to control the operation of the first water pump 9, the second water pump 10, the main pipe first automatic valve 7 and the main pipe second automatic valve 8; the inner side of the main pipeline A1 is provided with an elastic isolation network pipe A11 for isolating sundries, and a transition space is reserved between the outer side of the elastic isolation network pipe A11 and the inner side of the main pipeline A1; a slitting mechanism 12 is arranged on the inner side of the B2 main pipeline 5 for slitting sundries; the inner side of the B3 main pipeline 6 is provided with a B3 elastic isolation net pipe 13 for isolating sundries, and a transition space is reserved between the outer side of the B3 elastic isolation net pipe 13 and the inner side of the B3 main pipeline 6; the pressure sensing device A14 is arranged on the inner side of the main pipeline A1, the pressure sensing device A14 is arranged corresponding to the outer side of the elastic isolation net pipe A11, the pressure sensing device B3 15 is arranged on the inner side of the main pipeline B3 6, and the pressure sensing device B3 15 is arranged corresponding to the outer side of the elastic isolation net pipe B3 13; the pressure sensing device A14 and the pressure sensing device B3 15 are electrically connected with the control device. It should be noted here that the elastic isolation mesh pipe can be a metal isolation mesh pipe or a plastic isolation mesh pipe, has certain extensibility and tensity, and has good resilience after being expanded and eliminated from extrusion. The automatic valve can purchase related automatic valves, such as electromagnetic valves, in the market according to specific needs, which are not described herein. As for the pressure sensing device, a pressure sensor or a pressure sensing switch can be purchased from the market, which is not described herein.
2) Connecting a water inlet of the main pipeline A1 with a water pumping source ground, and connecting a water outlet of the main pipeline C3 with a water pumping receiving ground; the control device controls the first water pump 9 to be started, the second water pump 10 to be closed, the main pipe first automatic valve 7 to be closed and the main pipe second automatic valve 8 to be opened; after entering from the water inlet of the main pipe A1, water flow sequentially passes through the main pipe A1, the water inlet pipe of the first water suction pump 9, the water outlet pipe of the first water suction pump 9, the main pipe B2, the main pipe second automatic valve 8 and the main pipe C3 and is finally discharged from the water outlet of the main pipe C3; in the process of pumping water, impurities in water flow are isolated by the elastic isolation net pipe 11A and stay in the main pipe 1A;
3) when sundries staying in the main pipe A1 are accumulated to a certain degree and generate a blocking phenomenon, the elastic isolation net pipe A11 is extruded and expanded (or extruded and deformed), and the pressure sensing device A14 is triggered, at the moment, the control device controls the first water suction pump 9 to be closed, the second water suction pump 10 to be started, the first automatic valve 7 of the main pipe is opened, and the second automatic valve 8 of the main pipe is closed; after entering from the water inlet of the main pipeline A1, water flows sequentially through the main pipeline A1, the first automatic valve 7 of the main pipeline A, the main pipeline B2, the water inlet pipe of the second water pump 10, the water outlet pipe of the second water pump 10, the main pipeline C3 and finally the water outlet of the main pipeline C3, and under the action of water flow, sundries originally staying in the main pipeline A1 enter the main pipeline B1 through the first automatic valve 7 of the main pipeline B due to the opening of the first automatic valve 7 of the main pipeline A, and are cut by the main pipeline cutting mechanism 12 in the main pipeline B2 when passing through the main pipeline B2 5, the cut sundries are isolated by the elastic isolation network management pipe 13 of the B3 and finally stay in the main pipeline B3 6;
4) when sundries staying in the main pipe 6 of the B3 accumulate to a certain degree and generate a blocking phenomenon, the B3 elastic isolation net pipe 13 is extruded and expanded (or extruded and deformed), and the B3 pressure sensing device 15 is triggered, at the moment, the control device controls the first water pump 9 to be started, the second water pump 10 to be closed, the first automatic valve 7 of the main pipe to be closed, and the second automatic valve 8 of the main pipe to be opened; after entering from the water inlet of the main pipe A1, water flow sequentially passes through the main pipe A1, the water inlet pipe of the first water suction pump 9, the water outlet pipe of the first water suction pump 9, the main pipe B2, the main pipe second automatic valve 8 and the main pipe C3 and is finally discharged from the water outlet of the main pipe C3; in the process of pumping water, impurities in water flow are isolated by the elastic isolation net pipe 11A and stay in the main pipe 1A; and the debris that originally stayed in B3 main pipeline 6 can enter into C main pipeline 3 through being responsible for second automatic valve 8 because being responsible for opening of second automatic valve 8 under the effect of rivers, and the delivery port of following C main pipeline 3 is discharged at last.
The double-pump type unidirectional single main pipe anti-blocking pumping equipment for implementing the method comprises a main pumping pipe, a main pipe first automatic valve 7, a main pipe second automatic valve 8, a first water pump 9, a second water pump 10 and a control device; the main pumping pipe comprises a main pipe A1, a main pipe B2 and a main pipe C3 which are sequentially connected, wherein the main pipe B2 also comprises a main pipe B1 4, a main pipe B2 5 and a main pipe B3 6 which are sequentially connected; the main pipe first automatic valve 7 is positioned between the main pipe A1 and the main pipe B1 4, and the main pipe second automatic valve 8 is positioned between the main pipe B3 6 and the main pipe C3; the water inlet pipe of the first water pump 9 is connected with the main pipe A1, the water outlet pipe of the first water pump 9 is connected with the main pipe B1 4, the water inlet pipe of the second water pump 10 is connected with the main pipe B3 6, and the water outlet pipe of the second water pump 10 is connected with the main pipe C3; the control device is electrically connected with the first water pump 9, the second water pump 10, the main pipe first automatic valve 7 and the main pipe second automatic valve 8 and controls the operation of the first water pump 9, the second water pump 10, the main pipe first automatic valve 7 and the main pipe second automatic valve 8; the inner side of the main pipeline A1 is provided with an elastic isolation network pipe A11 for isolating sundries, and a transition space is reserved between the outer side of the elastic isolation network pipe A11 and the inner side of the main pipeline A1; a slitting mechanism 12 is arranged on the inner side of the B2 main pipeline 5 for slitting sundries; the inner side of the B3 main pipeline 6 is provided with a B3 elastic isolation net pipe 13 for isolating sundries, and a transition space is reserved between the outer side of the B3 elastic isolation net pipe 13 and the inner side of the B3 main pipeline 6; the pressure sensing device A14 is arranged on the inner side of the main pipeline A1, the pressure sensing device A14 is arranged corresponding to the outer side of the elastic isolation net pipe A11, the pressure sensing device B3 15 is arranged on the inner side of the main pipeline B3 6, and the pressure sensing device B3 15 is arranged corresponding to the outer side of the elastic isolation net pipe B3 13; the pressure sensing device A14 and the pressure sensing device B3 15 are electrically connected with the control device.
Specifically, the slitting mechanism 12 includes four slitting knives 16, which are uniformly distributed on the inner side of the B2 main pipe 5, wherein the knife bodies of the slitting knives 16 are in an ellipse shape with a wide middle and narrow ends in smooth transition, and the knife edges of the slitting knives 16 are in an arc shape with a high middle and low ends in smooth transition, so that the slitting knives 16 are gradually reduced from the middle to the two ends and finally fused with the inner side surface of the B2 main pipe 5. It should be noted here that, in order to avoid cutting the mechanism itself and cause to block to debris and produce the jam, special design has been carried out to cutting mechanism, the cutting edge of dividing the cutter is the arc that the centre of smooth transition is high, both ends are low, thereby make the middle part of dividing the cutter dwindle gradually to both ends, merge mutually with the medial surface of B2 trunk line finally, that is to say, it is a point to cut the dividing cutter both ends of mechanism, and with the medial surface looks parallel and level of B2 trunk line, then the cutting edge is in the same direction as smooth hunch-up to the middle part, when cutting the debris that pass through, can not cause the phenomenon of blocking basically. Moreover, the specially designed slitting knife has the important advantages that the space of the middle section of the B2 main pipeline is slightly smaller than the space of the front section and the rear section, so that when sundries pass through the B2 main pipeline, a certain siphon-like effect can be formed under the action of water pressure, the sundry circulation is improved, meanwhile, the extrusion force between the sundries and the slitting knife is increased, and the slitting effect on the sundries is improved; this is not comparable to other cutter configurations.
Specifically, the inner diameter of the main pipe a 1 is the same as that of the main pipe first automatic valve 7, the inner diameter of the main pipe first automatic valve 7 is the same as that of the main pipe B1 4, the inner diameter of the main pipe B1 4 is the same as that of the main pipe B2 5, the inner diameter of the main pipe B2 5 is the same as that of the elastic isolation mesh pipe B3 13, the inner diameter of the main pipe B3 6 is the same as that of the main pipe second automatic valve 8, and the inner diameter of the main pipe second automatic valve 8 is the same as that of the main pipe C3. It should be emphasized here that the inner diameter of the main pipe a 1 is the same as the inner diameter of the main pipe first automatic valve 7, that is, the inner diameter of the main pipe first automatic valve 7 is larger than the inner diameter of the main pipe a elastic isolation mesh pipe 11, so as to better dredge the sundries accumulated by the main pipe a elastic isolation mesh pipe 11, and similarly, the inner diameter of the main pipe B3 6 is the same as the inner diameter of the main pipe second automatic valve 8, that is, to better dredge the sundries accumulated by the main pipe B3 elastic isolation mesh pipe 13; the inner diameter of the main pipe 5 of the B2 is the same as that of the elastic isolation net pipe 13 of the B3, so that sundries are prevented from entering a transition space reserved between the outer side of the elastic isolation net pipe 13 of the B3 and the inner side of the main pipe 6 of the B3, and blockage is avoided.
Finally, it should be noted that the main pumping pipes (the main pipe a 1, the main pipe B2, and the main pipe C3) may be hard pipes, such as metal pipes or hard plastic pipes, and the water inlet pipe and the water outlet pipe of the water pump may be hard pipes or soft pipes as needed.
The present invention is not limited to the above embodiments, and other lamp rear covers obtained by using the same or similar technical features as those of the above embodiments of the present invention are within the protection scope of the present invention.
Claims (6)
1. A double-pump type one-way single main pipeline anti-blocking water pumping method is characterized by comprising the following steps:
1) a main pumping pipe is arranged and comprises a main pipe A, a main pipe B and a main pipe C which are sequentially connected, wherein the main pipe B comprises a main pipe B1, a main pipe B2 and a main pipe B3 which are sequentially connected; arranging a main pipe first automatic valve and a main pipe second automatic valve, wherein the main pipe first automatic valve is positioned between the main pipe A and the main pipe B1, and the main pipe second automatic valve is positioned between the main pipe B3 and the main pipe C; arranging a first water pump and a second water pump, wherein a water inlet pipe of the first water pump is connected with the main pipe A, a water outlet pipe of the first water pump is connected with the main pipe B1, a water inlet pipe of the second water pump is connected with the main pipe B3, and a water outlet pipe of the second water pump is connected with the main pipe C; a control device is arranged and is electrically connected with the first water suction pump, the second water suction pump, the main pipe first automatic valve and the main pipe second automatic valve to control the operation of the first water suction pump, the second water suction pump, the main pipe first automatic valve and the main pipe second automatic valve; the inner side of the main pipeline A is provided with an elastic isolation net pipe A for isolating sundries, and a transition space is reserved between the outer side of the elastic isolation net pipe A and the inner side of the main pipeline A; a slitting mechanism is arranged on the inner side of the B2 main pipeline and is used for slitting sundries; the inner side of the B3 main pipeline is provided with a B3 elastic isolation net pipe for isolating sundries, and a transition space is reserved between the outer side of the B3 elastic isolation net pipe and the inner side of the B3 main pipeline; the pressure sensing device A is arranged on the inner side of the main pipeline A, the pressure sensing device A is arranged corresponding to the outer side of the elastic isolation net pipe A, the pressure sensing device B3 is arranged on the inner side of the main pipeline B3, and the pressure sensing device B3 is arranged corresponding to the outer side of the elastic isolation net pipe B3; the pressure sensing device A and the pressure sensing device B3 are electrically connected with a control device;
2) connecting the water inlet of the main pipeline A with a water pumping source, and connecting the water outlet of the main pipeline C with a water pumping receiving ground; the control device controls the first water pump to start, the second water pump to close, the first automatic valve of the main pipe to close and the second automatic valve of the main pipe to open; after entering from the water inlet of the main pipe A, water flow sequentially passes through the main pipe A, the water inlet pipe of the first water suction pump, the water outlet pipe of the first water suction pump, the main pipe B, the second automatic valve of the main pipe and the main pipe C and is finally discharged from the water outlet of the main pipe C; in the process of pumping water, impurities in water flow are isolated by the elastic isolation net pipe A and stay in the main pipe A;
3) when sundries staying in the main pipe A are accumulated to a certain degree and generate a blocking phenomenon, the elastic isolation network pipe A is extruded and expanded and can trigger the pressure sensing device A, and then the control device controls the first water suction pump to be closed, the second water suction pump to be started, the first automatic valve of the main pipe to be opened and the second automatic valve of the main pipe to be closed; after entering from the water inlet of the main pipe A, water flow sequentially passes through the main pipe A, the first automatic valve of the main pipe, the main pipe B, the water inlet pipe of the second water suction pump, the water outlet pipe of the second water suction pump, the main pipe C, and finally is discharged from the water outlet of the main pipe C, impurities originally staying in the main pipe A enter the main pipe B1 through the first automatic valve of the main pipe due to the opening of the first automatic valve of the main pipe C under the action of water flow, and are cut by the cutting mechanism in the main pipe B2 when passing through the main pipe B2, the cut impurities are isolated by the elastic isolation network management of the B3, and finally stay in the main pipe B3;
4) when sundries staying in the main pipe B3 accumulate to a certain degree and generate a blocking phenomenon, the elastic isolation net pipe B3 is extruded and expanded to trigger the pressure sensing device B3, and at the moment, the control device controls the first water suction pump to be started, the second water suction pump to be closed, the first automatic valve of the main pipe to be closed and the second automatic valve of the main pipe to be opened; after entering from the water inlet of the main pipe A, water flow sequentially passes through the main pipe A, the water inlet pipe of the first water suction pump, the water outlet pipe of the first water suction pump, the main pipe B, the second automatic valve of the main pipe and the main pipe C and is finally discharged from the water outlet of the main pipe C; in the process of pumping water, impurities in water flow are isolated by the elastic isolation net pipe A and stay in the main pipe A; and the debris that originally stayed in B3 main pipeline can enter into C main pipeline through being responsible for the second automatic valve because being responsible for opening of second automatic valve under the effect of rivers, and the delivery port of following C main pipeline is discharged at last.
2. The double-pump type unidirectional single main pipeline blockage-preventing water pumping method according to claim 1, wherein in the step 1), the splitting mechanism comprises four splitting cutters which are uniformly distributed on the inner side of the main pipeline B2, wherein the splitting cutters comprise smooth transitional ellipses which are wide in the middle and narrow in the two ends, and the cutting edges of the splitting cutters are smooth transitional arcs which are high in the middle and low in the two ends, so that the cutting edges of the splitting cutters are gradually reduced from the middle to the two ends and finally are fused with the inner side surface of the main pipeline B2.
3. The method for pumping water with the double-pump type one-way single main pipe anti-clogging as claimed in claim 2, wherein in the step 1), the inner diameter of the main pipe a is the same as the inner diameter of the main pipe first automatic valve, the inner diameter of the main pipe first automatic valve is the same as the inner diameter of the main pipe B1, the inner diameter of the main pipe B1 is the same as the inner diameter of the main pipe B2, the inner diameter of the main pipe B2 is the same as the inner diameter of the elastic isolation net pipe B3, the inner diameter of the main pipe B3 is the same as the inner diameter of the main pipe second automatic valve, and the inner diameter of the main pipe second automatic valve is the same as.
4. A double-pump type unidirectional single main pipe anti-clogging pumping device for implementing the method of any one of claims 1 to 3, which is characterized by comprising a main pumping pipe, a main pipe first automatic valve, a main pipe second automatic valve, a first water pump, a second water pump and a control device; the main pumping pipe comprises a main pipe A, a main pipe B and a main pipe C which are sequentially connected, wherein the main pipe B comprises a main pipe B1, a main pipe B2 and a main pipe B3 which are sequentially connected; the main pipe first automatic valve is positioned between the main pipe A and the main pipe B1, and the main pipe second automatic valve is positioned between the main pipe B3 and the main pipe C; the water inlet pipe of the first water suction pump is connected with the main pipe A, the water outlet pipe of the first water suction pump is connected with the main pipe B1, the water inlet pipe of the second water suction pump is connected with the main pipe B3, and the water outlet pipe of the second water suction pump is connected with the main pipe C; the control device is electrically connected with the first water pump, the second water pump, the main pipe first automatic valve and the main pipe second automatic valve and is used for controlling the operation of the first water pump, the second water pump, the main pipe first automatic valve and the main pipe second automatic valve; the inner side of the main pipeline A is provided with an elastic isolation net pipe A for isolating sundries, and a transition space is reserved between the outer side of the elastic isolation net pipe A and the inner side of the main pipeline A; a slitting mechanism is arranged on the inner side of the B2 main pipeline and is used for slitting sundries; the inner side of the B3 main pipeline is provided with a B3 elastic isolation net pipe for isolating sundries, and a transition space is reserved between the outer side of the B3 elastic isolation net pipe and the inner side of the B3 main pipeline; the pressure sensing device A is arranged on the inner side of the main pipeline A, the pressure sensing device A is arranged corresponding to the outer side of the elastic isolation net pipe A, the pressure sensing device B3 is arranged on the inner side of the main pipeline B3, and the pressure sensing device B3 is arranged corresponding to the outer side of the elastic isolation net pipe B3; the pressure sensing device A and the pressure sensing device B3 are electrically connected with the control device.
5. The double-pump type unidirectional single main pipeline anti-clogging water pumping equipment as claimed in claim 4, wherein the slitting mechanism comprises four slitting knives, namely an upper slitting knife, a lower slitting knife, a left slitting knife and a right slitting knife, which are uniformly distributed on the inner side of the main pipeline B2, the slitting knives of the slitting knives are in smooth transition and oval shapes with wide middle and narrow two ends, and the cutting edges of the slitting knives are in smooth transition and arc shapes with high middle and low two ends, so that the cutting edges of the slitting knives are gradually reduced from the middle to the two ends and finally are fused with the inner side surface of the main pipeline B2.
6. The dual-pump type unidirectional single main pipe anti-clogging pumping equipment according to claim 4, wherein the inner diameter of the main pipe A is the same as that of the main pipe first automatic valve, the inner diameter of the main pipe first automatic valve is the same as that of the main pipe B1, the inner diameter of the main pipe B1 is the same as that of the main pipe B2, the inner diameter of the main pipe B2 is the same as that of the elastic isolation net pipe B3, the inner diameter of the main pipe B3 is the same as that of the main pipe second automatic valve, and the inner diameter of the main pipe second automatic valve is the same as that of the main pipe C.
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