Water supply pipeline ice slurry partition grading cleaning system and cleaning method

Abstract

The present application relates to the technical field of pipeline cleaning, and particularly relates to a water supply pipeline ice slurry partition grading cleaning system and a cleaning method. The system comprises an ice slurry injection assembly, which is used for stepwise injection of ice slurries with different ice contents into one end of a pipeline to be cleaned, so that the ice slurries form ice slurry zones in the pipeline to be cleaned and the ice slurry zones perform friction cleaning on the inner wall of the pipeline to be cleaned under the pushing of water flow in the pipeline. A pipeline cleaning and detection assembly is in communication with the other end of the pipeline to be cleaned, and is used for detecting the solution in the pipeline to be cleaned after cleaning by the ice slurry zones and judging the cleaning result of the pipeline to be cleaned according to the water detection result. The system stepwise injects ice slurries with different ice contents into the pipeline to be cleaned, increases the friction between the ice slurry and the pipeline to be cleaned, improves the cleaning effect of the pipeline to be cleaned, and improves the efficiency of pipeline cleaning construction of the pipeline to be cleaned.

Description

Technical Field

[0001] This invention relates to the field of pipeline cleaning technology, and in particular to a system and method for cleaning water supply pipelines by dividing them into zones and sections for ice slurry. Background Technology

[0002] Cleaning water supply networks is one of the most effective ways to improve water quality. Commonly used methods include one-way water flushing, high-pressure water jet flushing, mechanical pipe scraping, chemical cleaning, air-water pulse cleaning, and ice slurry cleaning. Ice slurry cleaning involves injecting ice slurry containing freezing point inhibitors into the water supply pipes to form an ice-water piston. The water pressure then pushes the piston forward, causing ice particles in the ice slurry to collide and rub against the inner wall of the pipes, thus peeling off and discharging deposits and attachments.

[0003] Traditional ice slurry cleaning methods typically use ice slurry with a single ice content for rinsing. However, in practice, the elongated piston formed by the ice slurry presents the following problems: Due to friction and cooling at the front end of the piston, the self-healing ability of the ice particles is poor, causing the ice content to decrease continuously along its path. This reduces the frictional resistance and shear force at the front end, resulting in a decline in the frictional performance of the ice slurry downstream. Furthermore, measuring ice slurry with a single ice content is insufficient to effectively assess the effectiveness of a single cleaning cycle, often requiring multiple rinsing cycles for evaluation, leading to waste. Therefore, a solution is urgently needed.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a water supply pipeline ice slurry zoning and grading cleaning system and cleaning method. The system increases the friction between the ice slurry and the pipeline by injecting ice slurry with different ice contents into the pipeline to be cleaned in stages, thereby improving the cleaning effect and the efficiency of pipeline cleaning construction.

[0006] To achieve the aforementioned objective, the technical solution of the present invention is implemented as follows: a water supply pipeline ice slurry zoned and graded cleaning system, comprising: a grouting component, wherein the grouting component is used to inject ice slurry with different ice contents in stages along one end of the pipeline to be cleaned, wherein the ice slurry with different ice contents forms an ice slurry zone in the pipeline to be cleaned, and the ice slurry zone performs friction cleaning on the inner wall of the pipeline to be cleaned under the impetus of the water flow in the pipeline.

[0007] A pipeline cleaning and testing component is connected to the other end of the pipeline to be cleaned. It is used to test the solution in the pipeline after it has been cleaned in the ice slurry zone, and to determine the cleaning result of the pipeline based on the water quality test results.

[0008] Preferably, it also includes a pipeline flow detection unit; the pipeline flow detection unit is used to detect the flow capacity of the pipeline to be cleaned; the ice slurry zone is set in sections according to the length of the ice slurry zone and the ice slurry with different ice content occupies the length of the ice slurry zone respectively, forming at least four sections with different friction forces in the pipeline to be cleaned; the grouting component injects the corresponding section of ice slurry zone into the pipeline to be cleaned according to the flow capacity of the pipeline to be cleaned or the water body detection results.

[0009] Preferably, the ice slurry zone includes a head friction zone, a middle friction and slag-carrying zone, a rear friction and isolation zone, and a tail detection and slag-carrying zone. The head friction zone is located at the forward end of the ice slurry zone and is used to rub the inner wall of the pipe to be cleaned. The middle friction and slag-carrying zone is adjacent to the head friction zone and is used to rub the inner wall of the pipe to be cleaned and carry the residue that falls off the pipe after friction. The rear friction and isolation zone is adjacent to the middle friction and slag-carrying zone and is used to rub and clean the inner wall of the pipe to be cleaned. The tail detection and slag-carrying zone is adjacent to the rear friction and isolation zone and is used to carry the residue from the tail detection and slag-carrying zone. The ice content of the head friction zone is the same as that of the rear friction and isolation zone, and the ice content of the head friction zone is greater than that of the middle friction and slag-carrying zone. The ice content of the rear friction and isolation zone is greater than that of the tail detection and slag-carrying zone.

[0010] Preferably, the ice slurry zone is configured with at least four sub-divisions, including:

[0011] The total length of the glacial lava zone is l i =l 1i +l 2i +l 3i +l 4i ;

[0012] Where i represents the number of times the grouting component performs grouting cleaning on the pipeline to be cleaned; L represents the length of the pipeline to be cleaned, and L ranges from 100m to 150m; l i =α i L,

[0013] l 1i Let l be the length of the head friction zone, and l 1i =β 1i l i ;

[0014] l 2i The length of the central friction and slag-carrying zone, and l 2i =β 2i l i ;

[0015] l 3i The length of the back-end friction and isolation zone, and l 3i =β 3i li ;

[0016] l 4i The length of the slag-carrying zone at the tail end is detected, and l 4i =β 4i l i ;

[0017] (α i ,β 1i ,β 2i ,β 3i ,β 4i It is divided into four levels:

[0018] First value range: (α) i ,β 1i ,β 2i ,β 3i ,β 4i = (0.2, 0.4, 0.5, 0.044, 0.056),

[0019] Second value range: (α) i ,β 1i ,β 2i ,β 3i ,β 4i = (0.15, 0.3, 0.6, 0.033, 0.067),

[0020] Third value range: (α) i ,β 1i ,β 2i ,β 3i ,β 4i = (0.10, 0.2, 0.7, 0.022, 0.078),

[0021] The fourth value range is: (α) i ,β 1i ,β 2i ,β 3i ,β 4i = (0.10, 0.1, 0.8, 0.011, 0.089).

[0022] Preferably, the grouting assembly includes a grouting pipe, a high-ice-content slurry storage tank, a medium-ice-content slurry storage tank, and a low-ice-content slurry storage tank for storing ice slurry; one end of the grouting pipe is connected to the high-ice-content slurry storage tank, the medium-ice-content slurry storage tank, and the low-ice-content slurry storage tank, respectively; a first valve is provided at the connection between the high-ice-content slurry storage tank and the grouting pipe, a second valve is provided at the connection between the medium-ice-content slurry storage tank and the grouting pipe, and a third valve is provided at the connection between the low-ice-content slurry storage tank and the grouting pipe; the other end of the grouting pipe is connected to the ice slurry injection point, the ice slurry injection point is connected to the pipeline to be cleaned, and a pump body, a pressure gauge, a flow meter, a thermometer, and a three-way vent are connected in series along the ice slurry conveying direction of the grouting pipe.

[0023] Preferably, the pipeline cleaning and testing assembly includes a discharge pipe, a pH meter, a turbidity meter, and a conductivity meter; one end of the discharge pipe is connected to the slurry discharge point, and the other end is connected to the sewage well; the slurry discharge point is connected to the pipeline to be cleaned; the pH meter, turbidity meter, and conductivity meter are respectively connected to the discharge pipe along the liquid transport direction of the discharge pipe.

[0024] Preferably, the high-ice-content slurry storage tank stores high-ice-content slurry with an ice content of 40%-45%, and the water-salt concentration C of the high-ice-content slurry is... 高 The value of C is 1.6C-1.82C, where C is the salt concentration of the water used to prepare the high ice content ice slurry, and C is less than 5%. The head friction zone and the rear friction and isolation zone are both composed of high ice content ice slurry.

[0025] The medium-ice-content slurry storage tank stores medium-ice-content slurry with an ice content of 30%-35%, and the water-salt concentration C of the medium-ice-content slurry is... 中 The value is 1.43C-1.54C, where C is the salt concentration of the water used to prepare the ice slurry with medium ice content, and C is less than 5%; the middle friction and slag-carrying zone is composed of ice slurry with medium ice content;

[0026] The low-ice-content slurry storage tank stores low-ice-content slurry with an ice content of 20%-25%, and the water-salt concentration C of the low-ice-content slurry is... 低 The value of C is 1.25C-1.33C, where C is the salt concentration of the water used to prepare the low-ice-content ice slurry, and C is less than 5%; the tail end detection slag-carrying zone is composed of low-ice-content ice slurry.

[0027] Preferably, the cleaning method is as follows:

[0028] S1, the pipeline flow detection unit detects the flow capacity of the pipeline to be cleaned;

[0029] S2, based on the results of the flow capacity detection of the pipeline to be cleaned by the pipeline flow detection unit, the grouting component performs the first selection of the ice grout zone to be injected into the pipeline to be cleaned.

[0030] If the flow capacity of the pipe to be cleaned is less than 0.9, the grouting component should be selected from the first value of the ice grout grading setting.

[0031] If the flow capacity of the pipe to be cleaned is 0.9-0.95, then the second value of the grouting component should be selected from the ice grout grading settings.

[0032] If the flow capacity of the pipe to be cleaned is 0.95-0.99, then the grouting component should be selected from the third value of the ice grout grading setting.

[0033] If the flow capacity of the pipe to be cleaned is greater than 0.99, the grouting component should be selected from the fourth value of the ice grout grading setting.

[0034] S3, after the grouting assembly performs the i-th grouting cleaning on the pipeline to be cleaned, the pipeline cleaning detection assembly measures the turbidity of the central friction and slag-carrying zone as NTU. 2i The turbidity of the tail-end slag-carrying zone measured by the pipeline cleaning and testing component was NTU. 4i ;

[0035] If NTU 4i / NTU 2i If the value is greater than 0.8, the grouting component will maintain the setting of the ice slurry class selected during the i-th grouting and continue to perform the (i+1)-th grouting cleaning on the pipeline to be cleaned.

[0036] If NTU 4i / NTU 2i If the value is less than 0.8, then when the grouting assembly continues to perform the (i+1)th grouting cleaning of the pipeline to be cleaned, it will select the next setting of the ice slurry classification set used in the i-th grouting cleaning, until the NTU measured by the pipeline cleaning detection assembly is reached. 4i If the value meets the standard value, the grouting component will stop grouting and cleaning the pipeline to be cleaned.

[0037] Preferably, the process of measuring the turbidity of the middle friction and slag-carrying zone by the pipeline cleaning and detection component in step S3 includes:

[0038] S31. Before the grouting component cleans the pipeline to be cleaned, the conductivity meter measures the sodium chloride concentration in high-ice-content slurry, medium-ice-content slurry and low-ice-content slurry by conductivity, and obtains the relationship curves between salt concentration and conductivity of high-ice-content slurry, medium-ice-content slurry and low-ice-content slurry.

[0039] S32. The conductivity detector continuously detects the conductivity of the solution in the discharge tube and determines the solution in the discharge tube as either the solution in the middle friction and slag-carrying zone or the solution in the tail slag-carrying zone based on the relationship curve between salt concentration and conductivity.

[0040] S33. The turbidity detector performs turbidity detection on the solution in the middle friction and slag-carrying zone of the discharge pipe detected by the conductivity detector and the solution in the slag-carrying zone detected at the tail end, respectively.

[0041] The beneficial effects of this invention are reflected in:

[0042] (1) The present invention injects ice slurry with different ice content into the pipe to be cleaned in stages to form an ice slurry zone on the inner wall of the pipe. The end and middle of the ice slurry zone can form strong friction on the inner wall of the pipe to be cleaned, thereby enabling the ice slurry zone to perform strong friction on the inner wall of the pipe to be cleaned at least twice, which improves the cleaning effect of the ice slurry zone on the pipe to be cleaned and improves the efficiency of the cleaning construction of the pipe to be cleaned.

[0043] (2) The present invention sets up a pipeline cleaning component to detect the solution discharged from the pipeline to be cleaned, thereby timely determining the cleaning effect of the ice slurry zone on the pipeline to be cleaned, and determining the number of times the ice slurry zone is injected into the pipeline to be cleaned based on the detection results, thereby saving ice slurry and improving the cleaning construction efficiency of the pipeline to be cleaned.

[0044] (3) The present invention sets up a pipeline flow detection unit to detect the flow capacity of the pipeline to be cleaned before the cleaning construction. The flow capacity is divided into sections according to the length of the ice slurry zone and the ice slurry with different ice content occupying the length of the ice slurry zone. This allows the ice slurry zone to form at least 4 sections. In actual use, the grouting component can select the corresponding ice slurry zone with the corresponding section value to clean the pipeline according to the flow capacity of the pipeline to be cleaned, thereby improving the efficiency of pipeline construction. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of the present invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] A. Pipe to be cleaned; B. Ground; C. Water flow;

[0048] 10. Grouting pipe; 11. High ice content slurry storage tank; 111. First valve; 12. Medium ice content slurry storage tank;

[0049] 121. Second valve; 13. Low ice content slurry storage tank; 131. Third valve; 14. Pump body;

[0050] 15. Pressure gauge; 16. Flow meter; 17. Thermometer; 18. Three-way vent;

[0051] 19. Ice slurry injection point; 20. Discharge pipe; 21. Slurry discharge point; 22. pH meter;

[0052] 23. Turbidity meter; 24. Conductivity meter; 30. Wastewater well;

[0053] 41. Upstream flushing valve; 42. Downstream flushing valve; 51. Head friction area;

[0054] 52. Middle friction and slag-carrying zone; 53. Rear friction and isolation zone; 54. Tail-end slag-carrying detection zone. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Example 1

[0057] See Figure 1 As shown:

[0058] This invention provides a water supply pipeline ice slurry zoned cleaning system, comprising: a grouting assembly, which is used to inject ice slurry with different ice contents into one end of the pipeline A to be cleaned in stages. The ice slurry with different ice contents forms an ice slurry zone in the pipeline A to be cleaned. The ice slurry zone is driven by the water flow C in the pipeline to perform friction cleaning on the inner wall of the pipeline A located below the ground B.

[0059] Since the ice slurry zone is composed of ice slurry with different ice contents, the end of the ice slurry zone that advances along the inside of the pipe A to be cleaned can be made of ice slurry with a high ice content, which can increase the friction with the inner wall of the pipe. In addition, the middle and tail of the ice slurry zone can also be made of ice slurry with a high ice content, or ice slurry with a medium ice content, or ice slurry with a low ice content, depending on the actual situation of the pipe A to be cleaned. By combining these, grouting zones with different friction forces can be formed, thereby improving the cleaning effect of the ice slurry zone on the inner wall of the pipe A to be cleaned in a single operation and saving cleaning time.

[0060] The grouting assembly mainly consists of a grouting pipe 10, a high-ice-content grout storage tank 11, a medium-ice-content grout storage tank 12, and a low-ice-content grout storage tank 13.

[0061] High ice content slurry storage tank 11 is used to store high ice content slurry with an ice content of 40%-45%, medium ice content slurry storage tank 12 is used to store medium ice content slurry with an ice content of 30%-35%, and low ice content slurry storage tank 13 is used to store low ice content slurry with an ice content of 20%-25%.

[0062] One end of the grouting pipe 10 is connected to a high-ice-content slurry storage tank 11, a medium-ice-content slurry storage tank 12, and a low-ice-content slurry storage tank 13, respectively. A first valve 111 is provided at the connection between the high-ice-content slurry storage tank 11 and the grouting pipe 10, a second valve 121 is provided at the connection between the medium-ice-content slurry storage tank 12 and the grouting pipe 10, and a third valve 131 is provided at the connection between the low-ice-content slurry storage tank 13 and the grouting pipe 10.

[0063] The other end of the grouting pipe 10 is connected to the ice slurry injection point 19, which is connected to the pipe A to be cleaned. Along the ice slurry conveying direction of the grouting pipe 10, a pump body 14, a pressure gauge 15, a flow meter 16, a thermometer 17, and a three-way exhaust 18 are connected in series.

[0064] An upstream flushing valve 41 and a downstream flushing valve 42 are respectively installed at both ends of the pipeline to be cleaned. In actual application, ball valves are used for the valves, a screw pump is used for the pump body 14, and the operating power is adjusted by a frequency converter. The flow meter 16 is an electromagnetic flow meter, the pressure transmitter is a diffused silicon pressure transmitter, the thermometer 17 is a joint-measurement thermal resistance temperature transmitter, and the three-way vent 18 is used to purge the air in the grouting pipe 10 in the early stage, and a conventional three-way vent is used.

[0065] The pipeline cleaning and testing component is connected to the other end of the pipeline A to be cleaned. It is used to test the solution of the pipeline A after it has been cleaned in the ice slurry zone, and to determine the cleaning result of the ice slurry zone on the pipeline A based on the water quality test results.

[0066] The pipeline cleaning and testing assembly mainly consists of a discharge pipe 20, a pH value detector 22, a turbidity value detector 23, and a conductivity detector 24.

[0067] One end of the discharge pipe 20 is connected to the slurry discharge point 21, and the other end is connected to the sewage well 30. The slurry discharge point 21 is connected to the pipe A to be cleaned; pH meter 22, turbidity meter 23, and conductivity meter 24 are connected to the discharge pipe 20 along the liquid transport direction of the discharge pipe 20. The solution in the discharge pipe 20 is monitored in real time by the various instruments connected to the discharge pipe 20.

[0068] It also includes a pipeline flow detection unit; the pipeline flow detection unit is used to detect the flow capacity of the pipeline A to be cleaned; the ice slurry zone is set in sections according to the length of the ice slurry zone and the ice slurry with different ice content occupies the length of the ice slurry zone respectively, forming at least four sections with different friction forces in the pipeline A to be cleaned; the grouting component injects the corresponding section of ice slurry zone into the pipeline A to be cleaned according to the flow capacity of the pipeline A to be cleaned or the solution detection results.

[0069] In actual use, the flow capacity of a pipeline is generally obtained by testing it with equipment that measures the flow rate of the pipeline.

[0070] The ice slurry zone mainly consists of the head friction zone 51, the middle friction and slag-carrying zone 52, the rear friction and isolation zone 53, and the tail detection and slag-carrying zone 54.

[0071] The head friction zone 51 is located at the leading end of the ice slurry zone and is used to rub the inner wall of the pipe A to be cleaned. The middle friction and slag-carrying zone 52 is adjacent to the head friction zone 51 and is used to rub the inner wall of the pipe A to be cleaned and carry the residue that falls off the pipe A after friction.

[0072] The rear friction and isolation zone 53 is adjacent to the middle friction and slag-carrying zone 52 and is used for friction cleaning of the inner wall of the pipe A to be cleaned. The tail-end detection and slag-carrying zone 54 is adjacent to the rear friction and isolation zone 53 and is used to carry away the residue under friction in the tail-end detection and slag-carrying zone 54. The ice content of the head friction zone 51 is the same as that of the rear friction and isolation zone 53, and the ice content of the head friction zone 51 is greater than that of the middle friction and slag-carrying zone 52. The ice content of the rear friction and isolation zone 53 is greater than that of the tail-end detection and slag-carrying zone 54.

[0073] The head friction zone 51 and the rear friction and isolation zone 53 are both composed of ice slurry with high ice content; the middle friction and slag carrying zone 52 is composed of ice slurry with medium ice content; and the tail end detection and slag carrying zone 54 is composed of ice slurry with low ice content.

[0074] High ice content ice slurry water salt concentration C 高 The value of C is 1.6C-1.82C, where C is the salt concentration of the water used to prepare high-ice-content ice slurry, and C is less than 5%.

[0075] The water salt concentration C of ice-containing magma 中 The value is 1.43C-1.54C, where C is the salt concentration of the water containing ice in the ice slurry during preparation, and C is less than 5%.

[0076] Low ice content ice slurry water salt concentration C 低 The value is between 1.25C and 1.33C, where C is the salt concentration of the water used to prepare low-ice-content ice slurry, and C is less than 5%; the ice slurry zone is set with at least 4 sub-levels, including:

[0077] The total length of the glacial lava zone is l i =l 1i +l 2i +l 3i +l 4i ;

[0078] Where i represents the number of times the grouting component performs grouting cleaning on the pipe A to be cleaned; L represents the length of the pipe A to be cleaned, and L ranges from 100m to 150m; l i =α i L,

[0079] l 1i The length of the head friction area 51, and l 1i =β 1i l i ;

[0080] l 2i The length of the central friction and slag-carrying zone 52 is given, and l 2i =β 2i l i ;

[0081] l 3i The length of the rear friction and isolation zone 53, and l 3i =β 3i l i ;

[0082] l 4i The length of the tail-end slag-carrying zone 54 is detected, and l 4i =β 4i l i ;

[0083] (α i ,β 1i ,β 2i ,β 3i ,β 4i It is divided into four levels:

[0084] First value range: (α) i ,β 1i ,β 2i ,β 3i ,β 4i = (0.2, 0.4, 0.5, 0.044, 0.056)

[0085] Second value range: (α) i ,β 1i ,β 2i ,β 3i ,β 4i = (0.15, 0.3, 0.6, 0.033, 0.067)

[0086] Third value range: (α) i ,β 1i ,β 2i ,β 3i ,β 4i = (0.10, 0.2, 0.7, 0.022, 0.078)

[0087] The fourth value range is: (α) i ,β 1i ,β 2i ,β 3i ,β 4i = (0.10, 0.1, 0.8, 0.011, 0.089).

[0088] Example 2

[0089] The cleaning method is as follows:

[0090] S1, The pipeline flow detection unit tests the flow capacity of the pipeline A to be cleaned;

[0091] S2, based on the results of the flow capacity test of the pipeline flow detection unit on the pipeline A to be cleaned, the grouting component performs the first selection of the grouting zone to be injected into the pipeline A to be cleaned.

[0092] If the flow capacity of the pipe A to be cleaned is less than 0.9, the grouting component shall be selected from the first value of the ice grout grading setting.

[0093] If the flow capacity of the pipe A to be cleaned is 0.9-0.95, then the second value of the grouting component should be selected from the ice grout grading settings.

[0094] If the flow capacity of the pipe A to be cleaned is 0.95-0.99, then the grouting component should be selected from the third value of the ice grout grading setting.

[0095] If the flow capacity of the pipe A to be cleaned is greater than 0.99, the grouting component should be selected from the fourth value of the ice grout grading setting.

[0096] S3, after the grouting assembly performs the i-th grouting cleaning of the pipeline A to be cleaned, the pipeline cleaning detection assembly measures the turbidity of the central friction and slag-carrying zone 52 to be NTU. 2i The turbidity of the tail-end slag-carrying zone 54 measured by the pipeline cleaning and testing component was NTU. 4i ;

[0097] If NTU 4i / NTU 2i If the value is greater than 0.8, the grouting component will maintain the setting of the ice slurry class selected during the i-th grouting, and the pipe A to be cleaned will continue to be grouted and cleaned for the (i+1)-th time.

[0098] If NTU 4i / NTU 2i If the value is less than 0.8, then when the grouting assembly continues to perform the (i+1)th grouting cleaning of the pipeline A to be cleaned, it will select the next setting of the ice slurry classification set used in the i-th grouting cleaning, until the NTU measured by the pipeline cleaning detection assembly is less than 0.8. 4i If the value meets the standard value, the grouting component will stop grouting and cleaning the pipe A to be cleaned.

[0099] The process of measuring the turbidity of the middle friction and slag-carrying zone 52 by the pipeline cleaning and detection component in step S3 includes:

[0100] S31. Before grouting and cleaning the pipe A to be cleaned, the conductivity meter 24 measures the sodium chloride concentration in the high-ice-content grout, medium-ice-content grout, and low-ice-content grout by measuring the conductivity, and obtains the relationship curves between salt concentration and conductivity for the high-ice-content grout, medium-ice-content grout, and low-ice-content grout; that is...

[0101] In the formula, φ is the ice content, C is the salt concentration for preparing the ice slurry, and C i The concentration of salt in the water in the ice slurry is measured by the conductivity meter 24.

[0102] Since the salt concentration C of the water used to prepare high-ice-content ice slurry, medium-ice-content ice slurry, and low-ice-content ice slurry is controlled within 5% and is known, the conductivity meter 24 can detect the salt concentration C of the water in the discharge pipe 20 during actual use. i This allows the system to determine whether the solution in the discharge tube 20 is high-ice-content ice slurry, medium-ice-content ice slurry, or low-ice-content ice slurry, thus providing a signal for the turbidity detector 23 to begin detection.

[0103] S32, the conductivity meter 24 continuously detects the conductivity of the solution in the discharge pipe 20, and determines the solution in the discharge pipe 20 as either the solution in the middle friction and slag-carrying zone 52 or the solution in the tail detection slag-carrying zone 54 based on the relationship curve between salt concentration and conductivity.

[0104] S33, the turbidity detector 23 performs turbidity detection on the solution in the middle friction and slag-carrying zone 52 and the solution in the tail slag-carrying zone 54 of the discharge pipe 20, which are detected by the conductivity detector 24 respectively.

[0105] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water supply pipeline ice slurry zoned and segmented cleaning system, characterized in that, include: The grouting assembly is used to inject ice slurry with different ice contents into one end of the pipe (A) to be cleaned in stages. The ice slurry with different ice contents forms an ice slurry zone in the pipe (A) to be cleaned. The ice slurry zone is pushed by the water flow (C) in the pipe to perform friction cleaning on the inner wall of the pipe (A) to be cleaned. A pipeline cleaning and testing component is connected to the other end of the pipeline (A) to be cleaned. It is used to test the solution of the pipeline (A) after it has been cleaned in the ice slurry zone, and to determine the cleaning result of the pipeline (A) based on the water body test results. It also includes a pipeline flow detection unit; the pipeline flow detection unit is used to detect the flow capacity of the pipeline (A) to be cleaned; the ice slurry zone is set in sections according to the length of the ice slurry zone and the length of the ice slurry with different ice content, forming at least four sections with different friction forces on the pipeline (A) to be cleaned; the grouting component injects the corresponding ice slurry zone into the pipeline (A) to be cleaned according to the flow capacity of the pipeline (A) to be cleaned or the water body detection results; The ice slurry zone includes a head friction zone (51), a middle friction and slag-carrying zone (52), a rear friction and isolation zone (53), and a tail detection and slag-carrying zone (54). The head friction zone (51) is located at the front end of the ice slurry zone and is used to rub the inner wall of the pipe (A) to be cleaned. The middle friction and slag-carrying zone (52) is adjacent to the head friction zone (51) and is used to rub the inner wall of the pipe (A) to be cleaned and carry the residue that falls off the pipe (A) after friction. The rear friction and isolation zone (53) is adjacent to the middle friction and slag-carrying zone. (52) Adjacent to each other, used for friction cleaning of the inner wall of the pipe (A) to be cleaned; the tail end detection slag-carrying area (54) is adjacent to the rear end friction and isolation area (53) and is used to carry the residue under friction of the tail end detection slag-carrying area (54); the ice content of the head friction area (51) is the same as that of the rear end friction and isolation area (53), and the ice content of the head friction area (51) is greater than that of the middle friction and slag-carrying area (52); the ice content of the rear end friction and isolation area (53) is greater than that of the tail end detection slag-carrying area (54); The ice slurry zone is configured with at least four levels, including: The total length of the ice lava zone is ; Where i represents the number of times the grouting component performs grouting cleaning on the pipe (A) to be cleaned; L represents the length of the pipe (A) to be cleaned, and L ranges from 100m to 150m. , The length of the head friction area (51), and ; The length of the central friction and slag-carrying zone (52) is given, and The length of the rear friction and isolation zone (53) is given, and ; The length of the tail end slag-carrying zone (54) is detected, and ; ( , , , , It is divided into four gears: First value range: ( , , , , = (0.2, 0.4, 0.5, 0.044, 0.056). Second value range: ( , , , , = (0.15, 0.3, 0.6, 0.033, 0.067). Third tier value: ( , , , , = (0.10, 0.2, 0.7, 0.022, 0.078). The fourth value range is: ( , , , , = (0.10, 0.1, 0.8, 0.011, 0.089).

2. The water supply pipeline ice slurry zoned and segmented cleaning system according to claim 1, characterized in that, The grouting assembly includes a grouting pipe (10), a high-ice-content slurry storage tank (11), a medium-ice-content slurry storage tank (12), and a low-ice-content slurry storage tank (13); one end of the grouting pipe (10) is connected to the high-ice-content slurry storage tank (11), the medium-ice-content slurry storage tank (12), and the low-ice-content slurry storage tank (13), respectively; a first valve (111) is provided at the connection between the high-ice-content slurry storage tank (11) and the grouting pipe (10), and the medium-ice-content slurry storage tank (12) and the grouting pipe (13) are connected to each other. A second valve (121) is provided at the connection point of 0), and a third valve (131) is provided at the connection point between the low ice content slurry storage tank (13) and the grouting pipe (10); the other end of the grouting pipe (10) is connected to the ice slurry injection point (19), the ice slurry injection point (19) is connected to the pipe to be cleaned (A), and a pump body (14), a pressure gauge (15), a flow meter (16), a thermometer (17) and a three-way exhaust (18) are connected in series along the ice slurry conveying direction of the grouting pipe (10).

3. The water supply pipeline ice slurry zoned and segmented cleaning system according to claim 2, characterized in that, The pipeline cleaning and testing assembly includes a discharge pipe (20), a pH meter (22), a turbidity meter (23), and a conductivity meter (24); one end of the discharge pipe (20) is connected to the ice slurry discharge point (21), and the other end is connected to the sewage well (30); The slurry discharge point (21) is connected to the pipe (A) to be cleaned; the pH value detector (22), turbidity value detector (23) and conductivity detector (24) are connected to the discharge pipe (20) along the liquid transport direction of the discharge pipe (20).

4. The water supply pipeline ice slurry zoned and segmented cleaning system according to claim 3, characterized in that, The high-ice-content slurry storage tank (11) stores high-ice-content slurry with an ice content of 40%-45%, and the water-salt concentration of the high-ice-content slurry is... The value of is 1.6C-1.82C, where C is the salt concentration of the water used to prepare the high ice content ice slurry, and C is less than 5%. The head friction zone (51) and the rear friction and isolation zone (53) are both composed of high ice content ice slurry. The medium-ice-content slurry storage tank (12) stores medium-ice-content slurry with an ice content of 30%-35%, and the water-salt concentration of the medium-ice-content slurry is... The value of is 1.43C-1.54C, where C is the salt concentration of the water used to prepare the ice slurry with medium ice content, and C is less than 5%; the middle friction and slag-carrying zone (52) is composed of ice slurry with medium ice content; The low-ice-content slurry storage tank (13) stores low-ice-content slurry with an ice content of 20%-25%, and the water-salt concentration of the low-ice-content slurry is... The value of is 1.25C-1.33C, where C is the salt concentration of the water used to prepare the low ice content ice slurry, and C is less than 5%; the tail end detection slag-carrying zone (54) is composed of low ice content ice slurry.

5. The cleaning method of the water supply pipeline ice slurry zoned and segmented cleaning system according to claim 4, characterized in that, The cleaning method is as follows: S1, the pipeline flow detection unit detects the flow capacity of the pipeline (A) to be cleaned; S2, based on the results of the flow capacity detection of the pipeline (A) to be cleaned by the pipeline flow detection unit, the grouting component performs the first selection of the grouting zone to be injected into the pipeline (A) to be cleaned; If the flow capacity of the pipe (A) to be cleaned is less than 0.9, the grouting component shall be selected from the first value of the ice grout grading setting. If the flow capacity of the pipe (A) to be cleaned is 0.9-0.95, then the second value of the grouting component should be selected from the ice grout grading settings. If the flow capacity of the pipe (A) to be cleaned is 0.95-0.99, then the grouting component should be selected from the third value of the ice grout grading setting. If the flow capacity of the pipe (A) to be cleaned is greater than 0.99, the grouting component should be selected from the fourth value of the ice grout grading setting. S3, after the grouting assembly performs the i-th grouting cleaning on the pipeline (A) to be cleaned, the pipeline cleaning detection assembly measures the turbidity of the middle friction and slag-carrying zone (52) as follows: The turbidity of the tail-end slag-carrying zone (54) measured by the pipeline cleaning and testing component was [value missing]. ; like / If the value is greater than 0.8, the grouting component will maintain the setting of the ice slurry class selected during the i-th grouting and continue to perform the (i+1)-th grouting cleaning on the pipe (A) to be cleaned. like / If the value is less than 0.8, then when the grouting assembly continues to perform the (i+1)th grouting cleaning of the pipeline (A) to be cleaned, it will select the next setting of the ice slurry classification set used in the i-th grouting cleaning, until the pipeline cleaning detection assembly measures the value. If the value meets the standard value, the grouting component will stop grouting and cleaning the pipe (A) to be cleaned.

6. The cleaning method of the water supply pipeline ice slurry zoned and segmented cleaning system according to claim 5, characterized in that, The process of measuring the turbidity of the middle friction and slag-carrying zone (52) by the pipeline cleaning and detection component in step S3 includes: S31. Before the grouting assembly grouts and cleans the pipe (A) to be cleaned, the conductivity detector (24) measures the sodium chloride concentration in the high ice content slurry, medium ice content slurry and low ice content slurry by conductivity, and obtains the relationship curves between salt concentration and conductivity of the high ice content slurry, medium ice content slurry and low ice content slurry. S32. The conductivity detector (24) continuously detects the conductivity of the solution in the discharge pipe (20) and determines the solution in the discharge pipe (20) as the solution in the middle friction and slag-carrying zone (52) or the solution in the tail end detection slag-carrying zone (54) based on the relationship curve between salt concentration and conductivity. S33. The turbidity detector (23) performs turbidity detection on the solution in the middle friction and slag-carrying zone (52) and the solution in the tail slag-carrying zone (54) detected by the conductivity detector (24) in the discharge pipe (20).

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