CN210685985U - Shield constructs quick-witted blowdown and prevents stifled device - Google Patents

Abstract

A shield machine pollution discharge anti-blocking device comprises an anti-blocking structure, a clean water source, a booster pump, an electromagnetic valve, a pollution discharge pipe, a lower computer and an upper computer; the anti-blocking structure is provided with a sewage inlet and a high-pressure water interface, and the sewage inlet is connected with a sewage pipe; the clean water source, the booster pump, the electromagnetic valve and the high-pressure water interface of the anti-blocking structure are sequentially connected, and the anti-blocking structure is connected to the sewage discharge pipe; the lower computer is respectively connected with the booster pump, the electromagnetic valve and the upper computer; the utility model discloses have the mobility of reinforcing sewage and arrange the sediment ability, probably solve the problem that sewage pipes easily blockked up and lead to the dredge pump to damage in the present work progress.

Description

Shield constructs quick-witted blowdown and prevents stifled device

Technical Field

The utility model relates to a shield constructs quick-witted accessory, in particular to stifled device is prevented in shield constructs quick-witted blowdown.

Background

The shield machine is used as special equipment for urban subway construction, is adopted by more and more construction units, and generally faces a problem of pollution discharge in the construction process, particularly in a water-bearing stratum, the shield machine also faces the risk of water inrush, so that the timely pollution discharge is important. The existing blow-off equipment equipped for the conventional shield machine is shown in fig. 1 and only comprises a pneumatic blow-off pump 1 'and a check valve 2', and the blow-off pump is damaged due to abnormal pressure caused by pipeline blockage or unsmooth blow-off due to more sediment content in sewage and longer sewage conveying pipeline.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, an object of the utility model is to provide a shield constructs quick-witted blowdown and prevents stifled device.

In order to achieve the aim, the utility model provides a shield machine pollution discharge anti-blocking device, which comprises an anti-blocking structure, a clear water source, a booster pump, a solenoid valve, a pollution discharge pipe, a lower computer and an upper computer; the anti-blocking structure is provided with a sewage inlet and a high-pressure water interface, and the sewage inlet is connected with a sewage pipe;

the clean water source, the booster pump, the electromagnetic valve and the high-pressure water interface of the anti-blocking structure are sequentially connected, and the anti-blocking structure is connected to the sewage discharge pipe; the lower computer is respectively connected with the booster pump and the electromagnetic valve; the upper computer is connected with the lower computer.

Based on the above design, the utility model discloses have washing, pressure boost and acceleration rate function, can strengthen the mobility of sewage and arrange the sediment ability, solved the problem that sewage pipes easily blockked up and lead to the dredge pump to damage in the current work progress.

Additionally, according to the utility model provides a stifled device is prevented in shield constructs quick-witted blowdown can also have following additional technical characterstic:

the device also comprises a flow sensor, wherein the flow sensor is arranged on the sewage discharge pipe and is connected with the lower computer. The flow sensor is used for detecting the flow of sewage in the sewage discharge pipe.

Still include a pressure sensor, pressure sensor locates between booster pump and the solenoid valve, and this pressure sensor is connected with the next computer. The pressure sensor is used for detecting jet pressure.

The sewage treatment device also comprises an air source, a control ball valve, a pneumatic sewage pump, a check valve and a sewage pool; the air source, the control ball valve, the pneumatic sewage pump and the sewage pipe are sequentially connected, and the check valve is arranged on the sewage pipe; the pneumatic sewage pump is connected with the sewage pool, and the control ball valve and the pneumatic sewage pump are respectively connected with the lower computer. The check valve is used for preventing sewage from flowing backwards when the pipeline is blocked so as to protect the pneumatic sewage pump.

Drawings

Fig. 1 is a schematic structural diagram of a drainage device of a conventional shield tunneling machine.

Fig. 2 is the utility model relates to a shield constructs structure schematic diagram of quick-witted blowdown anti-blocking device.

Fig. 3 is a schematic structural view of the middle anti-blocking structure of the present invention.

Fig. 4 is a cross-sectional view of the middle anti-blocking structure of the present invention.

Fig. 5 is a control schematic block diagram of the utility model relates to a shield constructs quick-witted blowdown and prevents stifled device.

Detailed Description

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Referring to fig. 2 and 5, a shield machine blowdown anti-blocking device comprises an anti-blocking structure 1, a clear water source 2, a booster pump 3, an electromagnetic valve 4, a blowdown pipe 5, a flow sensor 9, a pressure sensor 10, an air source 20, a control ball valve 21, a pneumatic blowdown pump 23, a check valve 24, a sewage tank 25, a lower computer 6 and an upper computer 7;

referring to fig. 2, fig. 3 and fig. 4 again, the anti-blocking structure 1 includes a three-way joint 11, a jet pipe 12 and a flange 13, which are sequentially arranged from front to back, the anti-blocking structure 1 has a sewage inlet 111 and a high-pressure water interface 112, that is, the sewage inlet 111 and the high-pressure water interface 112 are both arranged on the three-way joint 11, and the sewage inlet 111 is connected with a sewage pipe 8; the high-pressure water interface 112 and the jet pipe 12 are arranged in a straight line, and the jet pipe 12 and the sewage discharge pipe 5 are connected through the flange 13. The sewage inlet 111 and the high-pressure water interface 112 of the anti-blocking structure 1 are connected through threads, so that the disassembly, the assembly and the maintenance are convenient; the inner diameter of the jet pipe 12 gradually increases from the middle portion to the rear end portion. The inner diameter of the high-pressure water port 112 is gradually reduced from front to back, that is, the high-pressure water port 112 is of a nozzle type, so that the jet velocity of the originally high-flow and high-pressure flushing water is increased again through reducing, the sewage and the silt entering from the sewage inlet 111 are directly jetted into the jet pipe 12, and do not flow into the sewage inlet 111, and the long-distance conveying of the sewage and the mud is realized.

Referring to fig. 2 again, the clean water source 2, the booster pump 3, the electromagnetic valve 4 and the high-pressure water interface 112 of the anti-blocking structure 1 are sequentially connected, and the anti-blocking structure 1 is connected to the sewage discharge pipe 5; the flow sensor 9 is arranged on the sewage discharge pipe 5, and the flow sensor 9 is used for detecting the flow of sewage in the sewage discharge pipe 5. The pressure sensor 10 is arranged between the booster pump 3 and the electromagnetic valve 4, the air source 20, the control ball valve 21, the pneumatic sewage pump 23 and the sewage pipe 8 are sequentially connected, and the check valve 24 is arranged on the sewage pipe 8; the pneumatic sewage pump 23 is connected with the sewage tank 25, and the control ball valve 21 and the pneumatic sewage pump 23 are respectively connected with the lower computer 6. The check valve 24 serves to prevent reverse flow of sewage when the pipe is clogged to protect the pneumatic sewage pump 23.

Referring to fig. 2 and 5 again, the upper computer 7 is connected to the lower computer 6, the lower computer 6 is usually a PLC single chip, and the lower computer 6 is respectively connected to the booster pump 3, the solenoid valve 4, the flow sensor 9, and the pressure sensor 10; the pressure sensor 10 is used to detect the jet pressure.

Referring to fig. 2 and 5 again, when the utility model is applied to a sewage draining operation, the lower computer 6 receives a sewage flow signal fed back by the flow sensor 9 and a pressure signal fed back by the pressure sensor 10 in real time and reports the signals to the upper computer 7, the upper computer 7 sends an alarm or/and sends a control instruction to the lower computer 6 according to the signals, and the specific operation method is as follows:

the lower computer 6 controls the control ball valve 21 to be powered on and opened, the air source 20 supplies air to the pneumatic sewage pump 23, the pneumatic sewage pump 23 starts to work to pump sewage in the pool water to the sewage pipe 8 and flow into the anti-blocking structure 1, then the sewage pipe 5 is reached, and the flow sensor 9 detects the flow of the sewage in the sewage pipe 5 and reports the flow to the lower computer 6 in real time;

(1) when the flow of the flow sensor 9 is greater than or equal to a preset value, the pneumatic sewage pump 23 works, and the booster pump 3 is not started;

(2) when the flow of the flow sensor 9 is smaller than a preset value, the lower computer 6 controls the booster pump 3 to start, the electromagnetic valve 4 is powered on to be opened, the booster pump 3 pumps clean water in the clean water source 2, the pressurized clean water is jetted to the dredging pipeline of the anti-blocking structure 1, and the step (3) or (4) is executed;

(3) if the flow of the flow sensor 9 reaches a preset value, stabilizing for 10 minutes, and then closing the booster pump 3 and the electromagnetic valve 4;

(4) if the flow of the flow sensor 9 does not reach the set value after the booster pump 3 is started and the pressure of the pressure sensor 10 exceeds a preset value, the pressure sensor 10 presets a maximum value for the jet pressure, the flow is not increased, but the pressure is increased, which indicates that a pipe is blocked and needs to be overhauled, the lower computer 6 simultaneously closes the electromagnetic valve 4, the control ball valve 21 and the booster pump 3 to protect the pneumatic sewage pump 23; the upper computer 7 sends out an alarm to manually overhaul the pipeline.

The utility model discloses have and wash, pressure boost and acceleration rate structure to strengthen the mobility of sewage and arrange the sediment ability, probably solve the problem that 5 pipelines of blow off pipe easily block up and lead to the dredge pump to damage in the present work progress.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (7)

1. The utility model provides a shield constructs quick-witted blowdown and prevents stifled device which characterized in that: comprises an anti-blocking structure (1), a clear water source (2), a booster pump (3), an electromagnetic valve (4), a blow-off pipe (5), a lower computer (6) and an upper computer (7); the anti-blocking structure (1) is provided with a sewage inlet (111) and a high-pressure water interface (112), and the sewage inlet (111) is connected with a sewage pipe (8);

the clean water source (2), the booster pump (3), the electromagnetic valve (4) and the high-pressure water interface (112) of the anti-blocking structure (1) are sequentially connected, and the anti-blocking structure (1) is connected to the sewage discharge pipe (5); the lower computer (6) is respectively connected with the booster pump (3) and the electromagnetic valve (4); the upper computer (7) is connected with the lower computer (6).

2. The shield tunneling machine pollution discharge anti-blocking device as claimed in claim 1, wherein: the device is characterized by further comprising a flow sensor (9), wherein the flow sensor (9) is arranged on the sewage discharge pipe (5), and the flow sensor (9) is connected with the lower computer (6).

3. The shield tunneling machine pollution discharge anti-blocking device as claimed in claim 1, wherein: the device is characterized by further comprising a pressure sensor (10), wherein the pressure sensor (10) is arranged between the booster pump (3) and the electromagnetic valve (4), and the pressure sensor (10) is connected with the lower computer (6).

4. The shield tunneling machine pollution discharge anti-blocking device as claimed in claim 1, wherein: the sewage treatment device also comprises an air source (20), a control ball valve (21), a pneumatic sewage pump (23), a check valve (24) and a sewage tank (25); the air source (20), the control ball valve (21), the pneumatic sewage pump (23) and the sewage pipe (8) are sequentially connected, and the check valve (24) is arranged on the sewage pipe (8); the pneumatic sewage pump (23) is connected with the sewage pool (25), and the control ball valve (21) and the pneumatic sewage pump (23) are respectively connected with the lower computer (6).

5. The shield tunneling machine pollution discharge anti-blocking device as claimed in claim 1, wherein: prevent stifled structure (1) including tee bend (11), efflux pipe (12) and flange (13) that set gradually after to in the past, tee bend (11) are all located to sewage import (111) and high pressure water connector (112), high pressure water connector (112) are "one" word with efflux pipe (12) and arrange, efflux pipe (12) and blow off pipe (5) pass through flange (13) are connected.

6. The shield tunneling machine blowdown anti-blocking device of claim 5, wherein: the inner diameter of the high-pressure water interface (112) is gradually reduced from front to back.

7. The shield tunneling machine blowdown anti-blocking device of claim 5, wherein: the inner diameter of the jet pipe (12) is gradually increased from the middle part to the rear end part.

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