CN111577591B - Intelligent water seal flushing system and flushing method - Google Patents
Intelligent water seal flushing system and flushing method Download PDFInfo
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- CN111577591B CN111577591B CN202010478102.XA CN202010478102A CN111577591B CN 111577591 B CN111577591 B CN 111577591B CN 202010478102 A CN202010478102 A CN 202010478102A CN 111577591 B CN111577591 B CN 111577591B
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- flushing
- water
- pump
- main pipeline
- water seal
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses an intelligent water seal flushing system and a flushing method, and solves the problems that in the prior art, a water seal flushing system cannot accurately, stably and intelligently control the pumping flow and pressure of water seal flushing and is difficult to debug in the construction process. The sludge pump comprises a water tank and a booster pump, wherein the booster pump is connected with a corresponding sludge pump through a closed-loop control flushing pipeline, and the closed-loop control flushing pipelines are arranged in parallel and are all connected with an upper computer. The invention relates to an intelligent water-seal flushing system, which controls the working state of a water-seal flushing pump through an upper computer according to detection feedback signals of a pressure sensor and a flowmeter, thereby realizing the stable output of the flow and the pressure of the water-seal flushing pump and achieving the purpose of intelligent closed-loop control.
Description
Technical Field
The invention relates to the technical field of shield mud pump water seal flushing, in particular to an intelligent water seal flushing system and method.
Background
The slurry circulation system in the slurry shield machine mainly comprises a slurry pump, a valve body, a pipeline, a matching component, a control system and the like, and is mainly used for conveying slurry to an excavation face sealed cabin and conveying cut residue soil to the ground for separation treatment. The mud pump is a core component of the mud-water circulation system, so that the stable operation of the mud-water circulation system is ensured, and whether the mud-water circulation system is efficient or energy-saving is determined. The root of the mud pump needs to be sealed in a water-tight mode, and the mud pump is mainly used for cooling packing seals at the pump head of the mud pump, enabling the packing seals to absorb water and expand and sealing the pump head of the mud pump. The traditional water seal flushing system mainly comprises a constant delivery pump, a flow regulating valve, a water flow indicator and the like, and the system is high in debugging difficulty and cannot realize accurate, stable and intelligent control on the pumping flow and pressure of the water seal flushing pump through on-site construction feedback.
Disclosure of Invention
Aiming at the defects in the background art, the invention provides an intelligent water seal flushing system and a flushing method, and solves the problems that in the prior art, a water seal flushing system cannot accurately, stably and intelligently control the pumping flow and pressure of water seal flushing and has high debugging difficulty in the construction process.
The technical scheme of the invention is realized as follows: the utility model provides an intelligent water-stop flushing system, includes water tank and booster pump, the booster pump is connected with corresponding slush pump through closed-loop control flushing line, closed-loop control flushing line sets up in parallel, and all is connected with the host computer.
The closed-loop control flushing pipeline comprises a main pipeline, a water-seal flushing pump, a front control valve set, a rear control valve set and a flowmeter are arranged on the main pipeline, the front control valve set is located at the water inlet end of the water-seal flushing pump, and the flowmeter and the rear control valve set are sequentially arranged at the water outlet end of the water-seal flushing pump.
Preceding valves includes along manual ball valve I and the pneumatic ball valve that goes out the water direction and set gradually, is equipped with first manometer and pressure sensor between pneumatic ball valve and the water-stop washer pump.
The back valve unit comprises a manual ball valve II, a stop valve, a one-way valve and a manual ball valve III which are sequentially arranged along the water outlet direction, and the manual ball valve II is a standby bypass valve.
The flowmeter is located between the manual ball valve II and the water seal flushing pump, and a second pressure gauge is arranged between the water seal flushing pump and the flowmeter.
And the pneumatic ball valve, the first pressure gauge, the pressure sensor, the water sealing flushing pump, the second pressure gauge and the flowmeter are all connected with an upper computer.
A flushing method of an intelligent water seal flushing system comprises the following steps:
s1: firstly, according to the flow and pressure of water in a main pipeline required by the sealing and flushing of the water of a slurry pump, corresponding parameter setting is carried out on an upper computer and is used as a standard parameter value;
s2: before starting a booster pump 2 communicated with a main pipeline, opening a manual ball valve I and a manual ball valve III which are arranged on the main pipeline, closing a manual ball valve II and fully opening a stop valve;
s3: starting a booster pump, and remotely controlling to open a pneumatic ball valve;
s4: the upper computer adjusts the working state of the water seal flushing pump according to the data detected by the pressure sensor and the flowmeter arranged on the main pipeline, so that the flow and the pressure of water in the main pipeline meet standard parameter values, and stable water flushing of the mud pump for water seal is realized.
In the step S4, the upper computer adjusts the working state of the water seal flushing pump according to the data detected by the pressure sensor and the flowmeter arranged on the main pipeline, and the specific steps are as follows:
s4.1, when the data detected by the pressure sensor and the flowmeter is larger than or equal to the standard parameter value, the water seal flushing pump does not work;
s4.2: when the data detected by the pressure sensor and the flowmeter are smaller than the standard parameter value, the water seal flushing pump is started in a variable frequency mode until the data detected by the pressure sensor and the flowmeter meet the standard parameter value;
s4.3: when the flow in the main pipeline exceeds the corresponding standard parameter value but the pressure in the main pipeline does not meet the standard parameter value, manually adjusting the stop valve to adjust the pressure in the main pipeline, and stopping adjusting the stop valve when the pressure in the main pipeline is stable;
s4.4: and repeating the steps S4.1-S4.3 to control the working state of the water seal flushing pump through the upper computer, thereby achieving the purpose of intelligent closed-loop control.
The invention relates to an intelligent water-seal flushing system, which controls the working state of a water-seal flushing pump through an upper computer according to detection feedback signals of a pressure sensor and a flowmeter, thereby realizing the stable output of the flow and the pressure of the water-seal flushing pump and achieving the purpose of intelligent closed-loop control. The water seal flushing system has the advantages that the upper computer controller, the variable pump, the flowmeter, the pressure sensor and other components are used to form a closed-loop control mode, the structural design is ingenious, the control method is simple, the production cost is reduced, the purpose of accurate, stable and intelligent control of the water seal flushing system can be achieved, and the water seal flushing system has high practicability and popularization value.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic view of the connection structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in FIG. 1, embodiment 1 is an intelligent water-sealed flushing system, which comprises a water tank 1 and a booster pump 2, wherein the booster pump is connected to the water tank and supplies water to the water-sealed flushing system, and a certain pressure and a certain flow are maintained. The booster pump 2 is connected with a corresponding mud pump through a closed-loop control flushing pipeline, and the closed-loop control flushing pipelines are arranged in parallel and are connected with the upper computer 14. The closed-loop control flushing pipelines correspond to the slurry pumps one by one, and a plurality of slurry pumps have a plurality of corresponding closed-loop control flushing pipelines which are arranged in parallel and work independently.
Further, the closed-loop control flushing pipeline comprises a main pipeline 15, and the main pipeline is connected between the booster pump and the slurry pump and used as a main pipeline for water-tight flushing of the slurry pump. The main pipeline 15 is provided with a water seal flushing pump 7, a front control valve set, a rear control valve set and a flowmeter 9, the water seal flushing pump 7 adopts a variable frequency pump and is connected with an upper computer, and the working state of the water seal flushing pump is adjusted by the upper computer. The front control valve group is positioned at the water inlet end of the water seal flushing pump 7, and the flowmeter 9 and the rear control valve group are sequentially arranged at the water outlet end of the water seal flushing pump 7. The front control valve group and the rear control valve group control the on-off of the main pipeline and provide convenience for system maintenance. The flowmeter 9 is connected with the upper computer 14 and used for monitoring the water flow in the main pipeline at the water outlet end of the water-sealed flushing pump and transmitting data to the upper computer to realize real-time monitoring.
Further, preceding valve unit includes along manual ball valve I3 and the pneumatic ball valve 4 that the water direction set gradually, and pneumatic ball valve 4 is connected with the host computer, and remote control is realized through pneumatic ball valve 4 to the break-make state of this system. The manual ball valve I3 is used for manually controlling the on-off of the system, providing convenience for system maintenance and being in a normally open state in the using process. A first pressure gauge 5 and a pressure sensor 6 are arranged between the pneumatic ball valve 4 and the water seal flushing pump 7. The first pressure gauge 5 and the pressure sensor 6 are connected with an upper computer and used for detecting the water pressure at the inlet of the water seal flushing pump 7 and transmitting data to the upper computer. The back valve unit comprises a manual ball valve II 10, a stop valve 11, a one-way valve 12 and a manual ball valve III 13 which are sequentially arranged along the water outlet direction, wherein the manual ball valve II 10 is a standby bypass valve and is in a normally closed state in the working process. The check valve 12 is to prevent the sealed water from flowing backwards and damaging the water-sealed flushing system. During on-site construction and debugging, the stop valve 11 is manually adjusted according to the requirements of the slurry pump, and the control of water flow and pressure can be realized.
Further, the flowmeter 9 is located between the manual ball valve II 10 and the water seal flushing pump 7, and a second pressure gauge 8 is arranged between the water seal flushing pump 7 and the flowmeter 9. The second pressure gauge 8 is also connected with the upper computer 14 and is used for detecting the outlet pressure of the water sealing flushing pump 7 and respectively realizing the functions of monitoring and displaying the local pressure and the pressure of the upper computer.
Example 2, a method for flushing an intelligent water seal flushing system as described in example 1, comprising the steps of:
s1: firstly, according to the flow and pressure of water in the main pipeline 15 required by the water seal flushing of the slurry pump, corresponding parameter setting (setting corresponding flow value and pressure value) is carried out on an upper computer and is used as a standard parameter value;
s2: before starting a booster pump 2 communicated with a main pipeline 15, opening a manual ball valve I3 and a manual ball valve III 13 arranged on the main pipeline 15, closing a manual ball valve II 10 and fully opening a stop valve 11;
s3: starting the booster pump 2, and remotely controlling to open the pneumatic ball valve 4;
s4: the upper computer adjusts the working state of the water seal flushing pump 7 according to the data detected by the pressure sensor 6 and the flowmeter 9 arranged on the main pipeline 15, so that the flow and the pressure of water in the main pipeline 15 meet standard parameter values, and the water seal stable water flushing of the slurry pump is realized. The method comprises the following specific steps:
s4.1, when the data detected by the pressure sensor 6 and the flowmeter 9 are more than or equal to the standard parameter value, the water seal flushing pump 7 does not work;
s4.2: when the data detected by the pressure sensor 6 and the flowmeter 9 are smaller than the standard parameter value, the water seal flushing pump 7 is started in a frequency conversion mode until the data detected by the pressure sensor 6 and the flowmeter 9 meet the standard parameter value;
s4.3: when the flow in the main pipeline 15 exceeds the corresponding standard parameter value, but the pressure in the main pipeline 15 does not meet the standard parameter value, manually adjusting the stop valve 11, adjusting the pressure in the main pipeline 15, and stopping adjusting the stop valve 11 when the pressure in the main pipeline 15 is stable;
s4.4: and (4) repeating the steps S4.1-S4.3 to control the working state of the water seal flushing pump 7 through the upper computer, thereby achieving the purpose of intelligent closed-loop control.
The other structure is the same as embodiment 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A flushing method of an intelligent water seal flushing system is characterized in that: the method comprises the following steps:
s1: firstly, according to the flow and pressure of water in a main pipeline (15) required by the water seal flushing of a slurry pump, corresponding parameter setting is carried out on an upper computer and is used as a standard parameter value;
s2: before a booster pump (2) communicated with a main pipeline (15) is started, a manual ball valve I (3) and a manual ball valve III (13) arranged on the main pipeline (15) are opened, a manual ball valve II (10) is closed, and a stop valve (11) is fully opened;
s3: starting a booster pump (2), and remotely controlling to open a pneumatic ball valve (4);
s4: the upper computer adjusts the working state of the water seal flushing pump (7) according to the data detected by the pressure sensor (6) and the flowmeter (9) arranged on the main pipeline (15), so that the flow and the pressure of water in the main pipeline (15) meet standard parameter values, and the water seal stable water flushing of the slurry pump is realized;
in the step S4, the specific steps of the upper computer adjusting the working state of the water seal flushing pump (7) according to the data detected by the pressure sensor (6) and the flowmeter (9) arranged on the main pipeline (15) are as follows:
s4.1, when the data detected by the pressure sensor (6) and the flowmeter (9) is larger than or equal to the standard parameter value, the water seal flushing pump (7) does not work;
s4.2: when the data detected by the pressure sensor (6) and the flowmeter (9) are smaller than the standard parameter value, the water seal flushing pump (7) is started in a frequency conversion mode until the data detected by the pressure sensor (6) and the flowmeter (9) meet the standard parameter value;
s4.3: when the flow in the main pipeline (15) exceeds the corresponding standard parameter value, but the pressure in the main pipeline (15) does not meet the standard parameter value, manually adjusting the stop valve (11), adjusting the pressure in the main pipeline (15), and stopping adjusting the stop valve (11) after the pressure in the main pipeline (15) is stable;
s4.4: and (4) repeating the steps S4.1-S4.3 to control the working state of the water seal flushing pump (7) through the upper computer, so as to achieve the purpose of intelligent closed-loop control.
2. The flushing method of the intelligent water seal flushing system of claim 1, wherein: the intelligent water-seal flushing system comprises a water tank (1) and a booster pump (2), wherein the booster pump (2) is connected with a corresponding slurry pump through a closed-loop control flushing pipeline, and the closed-loop control flushing pipeline is connected in parallel and is connected with an upper computer (14).
3. The flushing method of the intelligent water seal flushing system of claim 2, wherein: the closed-loop control flushing pipeline comprises a main pipeline (15), a water-seal flushing pump (7), a front control valve set, a rear control valve set and a flowmeter (9) are arranged on the main pipeline (15), the front control valve set is located at the water inlet end of the water-seal flushing pump (7), and the flowmeter (9) and the rear control valve set are sequentially arranged at the water outlet end of the water-seal flushing pump (7).
4. The flushing method of an intelligent water seal flushing system according to claim 3, wherein: preceding valves includes manual ball valve I (3) and pneumatic ball valve (4) that set gradually along the water direction, is equipped with first manometer (5) and pressure sensor (6) between pneumatic ball valve (4) and water-stop washer pump (7).
5. The flushing method of an intelligent water seal flushing system according to claim 3 or 4, characterized in that: the back valve unit comprises a manual ball valve II (10), a stop valve (11), a one-way valve (12) and a manual ball valve III (13) which are sequentially arranged along the water outlet direction, and the manual ball valve II (10) is a standby bypass valve.
6. The flushing method of the intelligent water seal flushing system of claim 5, wherein: the flowmeter (9) is positioned between the manual ball valve II (10) and the water sealing flushing pump (7), and a second pressure gauge (8) is arranged between the water sealing flushing pump (7) and the flowmeter (9).
7. The flushing method of an intelligent water seal flushing system according to claim 6, wherein: the pneumatic ball valve (4), the first pressure gauge (5), the pressure sensor (6), the water sealing flushing pump (7), the second pressure gauge (8) and the flowmeter (9) are all connected with the upper computer (14).
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| CN202010478102.XA CN111577591B (en) | 2020-05-29 | 2020-05-29 | Intelligent water seal flushing system and flushing method |
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| CN202010478102.XA CN111577591B (en) | 2020-05-29 | 2020-05-29 | Intelligent water seal flushing system and flushing method |
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| CN111577591A CN111577591A (en) | 2020-08-25 |
| CN111577591B true CN111577591B (en) | 2021-12-10 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2912840Y (en) * | 2006-06-09 | 2007-06-20 | 西南交通大学 | Insulator water washing closed ring hydraulic pressure control system |
| CN201524671U (en) * | 2009-10-30 | 2010-07-14 | 德尔福（上海）动力推进系统有限公司 | Pressure regulator flushing device |
| CN204148200U (en) * | 2014-10-13 | 2015-02-11 | 沈阳洗德洁高压清洗科技有限公司 | Jetting machine |
| CN104847369A (en) * | 2015-06-04 | 2015-08-19 | 中国铁建重工集团有限公司 | Slurry shield tunneling machine flushing water pressure control system and control method |
| CN204974575U (en) * | 2015-09-17 | 2016-01-20 | 约翰克兰科技（天津）有限公司 | Mechanical seal system is adjusted to full -automatic washing |
| CN105465053A (en) * | 2015-12-24 | 2016-04-06 | 福斯流体控制（苏州）有限公司 | Self-circulation flushing system of seawater circulating pump shaft seal |
| CN109630143A (en) * | 2018-12-04 | 2019-04-16 | 中铁隧道集团二处有限公司 | The electrical improvement control method of slush pump and booster pump in a kind of slurry shield machine |
-
2020
- 2020-05-29 CN CN202010478102.XA patent/CN111577591B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2912840Y (en) * | 2006-06-09 | 2007-06-20 | 西南交通大学 | Insulator water washing closed ring hydraulic pressure control system |
| CN201524671U (en) * | 2009-10-30 | 2010-07-14 | 德尔福（上海）动力推进系统有限公司 | Pressure regulator flushing device |
| CN204148200U (en) * | 2014-10-13 | 2015-02-11 | 沈阳洗德洁高压清洗科技有限公司 | Jetting machine |
| CN104847369A (en) * | 2015-06-04 | 2015-08-19 | 中国铁建重工集团有限公司 | Slurry shield tunneling machine flushing water pressure control system and control method |
| CN204974575U (en) * | 2015-09-17 | 2016-01-20 | 约翰克兰科技（天津）有限公司 | Mechanical seal system is adjusted to full -automatic washing |
| CN105465053A (en) * | 2015-12-24 | 2016-04-06 | 福斯流体控制（苏州）有限公司 | Self-circulation flushing system of seawater circulating pump shaft seal |
| CN109630143A (en) * | 2018-12-04 | 2019-04-16 | 中铁隧道集团二处有限公司 | The electrical improvement control method of slush pump and booster pump in a kind of slurry shield machine |
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| CN111577591A (en) | 2020-08-25 |
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