阅读说明：本技术 一种长距离管道清洗系统 (Long-distance pipeline cleaning system ) 是由 葛明明 于 2020-07-30 设计创作，主要内容包括：本发明公开了一种长距离管道清洗系统,包括凝胶塞制备装置、清洗列车注射装置以及收集中和装置；凝胶塞制备装置包括静态混合器,连接于静态混合器首端的凝胶基质添加装置和交联剂添加装置,以及连接于静态混合器末端的凝胶塞注射管线；清洗列车注射装置设置于主管道的起始端,其包括多个独立的清洗液注射装置,用于向主管道内注射清洗列车；收集中和装置设置于主管道的末端,其包括回收管道、废水箱以及过滤器。本发明的长距离管道清洗系统,能够实现对复杂的长距离管道良好的清洗效果。(The invention discloses a long-distance pipeline cleaning system, which comprises a gel plug preparation device, a cleaning train injection device and a collecting and neutralizing device, wherein the gel plug preparation device is used for preparing gel plugs; the gel plug preparation device comprises a static mixer, a gel matrix adding device and a cross-linking agent adding device which are connected to the head end of the static mixer, and a gel plug injection pipeline connected to the tail end of the static mixer; the cleaning train injection device is arranged at the starting end of the main pipeline and comprises a plurality of independent cleaning solution injection devices for injecting the cleaning train into the main pipeline; the collecting and neutralizing device is arranged at the tail end of the main pipeline and comprises a recovery pipeline, a waste water tank and a filter. The long-distance pipeline cleaning system can achieve a good cleaning effect on complex long-distance pipelines.)

1. A long-distance pipeline cleaning system is characterized by comprising a gel plug preparation device, a cleaning train injection device and a collecting and neutralizing device;

the gel plug preparation device comprises a static mixer, a gel matrix adding device and a cross-linking agent adding device which are connected to the head end of the static mixer, and a gel plug injection pipeline connected to the tail end of the static mixer, wherein the gel matrix adding device comprises a gel barrel for containing a gel matrix and a gel matrix output pipeline, and a sine pump is arranged on the gel matrix output pipeline; the cross-linking agent adding device comprises a cross-linking agent barrel for containing the cross-linking agent and a cross-linking agent output pipeline, and a dosing pump is arranged on the cross-linking agent output pipeline; the gel plug injection line is used for molding and outputting a cross-linked gel plug;

the cleaning train injection device is arranged at the starting end of the main pipeline and comprises a plurality of independent cleaning liquid injection devices for injecting the cleaning train into the main pipeline; each cleaning liquid injection device comprises a cleaning liquid tank for preparing cleaning liquid, the cleaning liquid tank is connected to the main pipeline through a cleaning liquid conveying pipeline, and a stop valve and a check valve are sequentially arranged on the cleaning liquid conveying pipeline close to the main pipeline; a chemical feeding pump is arranged on the cleaning liquid conveying pipeline and used for pumping the cleaning liquid in the cleaning liquid tank into the main pipeline; the gel plug injection pipeline is connected to the main pipeline, and a stop valve is arranged at the position close to the main pipeline; the cleaning liquid conveying pipelines and the gel plug injection pipelines are sequentially connected to a main pipeline along a cleaning direction, and an inlet of the main pipeline is connected with a water inlet pipeline;

the collecting and neutralizing device is arranged at the tail end of the main pipeline and comprises a recovery pipeline, a waste water tank and a filter, the recovery pipeline is connected to the main pipeline, and a sensor for detecting a gel plug is arranged at the joint of the recovery pipeline and the waste water tank; a three-way pipe is arranged on the recovery pipeline, a first output end of the three-way pipe is communicated with the wastewater tank, and a second output end of the three-way pipe is communicated with the filter; the waste water tank is connected with a neutralization liquid pipeline, and an electric stirrer is arranged in the waste water tank; the bottom of the filter is connected to the main pipeline through a filtered water pipeline.

2. The long distance pipeline cleaning system of claim 1, wherein a return line is connected to each of the cross-linking agent output line and the cleaning solution delivery line, the return lines respectively lead to the cross-linking agent tank and the cleaning solution tank, and the return lines are provided with stop valves.

3. The long reach pipe cleaning system of claim 1, wherein a tee is connected to the end of said static mixer, a first output of said tee being connected to said gel plug injection line and a second output having a sampling point.

4. The long reach pipe cleaning system of claim 1, wherein said gel plug injection line is a hose having a diameter corresponding to the diameter of the main pipe.

5. The long reach pipe cleaning system of claim 1, wherein the gel matrix output line is connected to a flush water line, and the cross-linking agent output line is provided with a shut-off valve and a check valve in sequence at a junction close to the static mixer.

6. The long reach pipe cleaning system of claim 1, wherein flow meters are provided on both the cleaning solution delivery line and the water inlet line.

7. A long haul pipeline cleaning system as recited in claim 1, wherein said cleaning solution injection means is three, respectively an acid cleaning solution injection means, an alkaline cleaning solution injection means and a disinfectant injection means.

8. The long distance pipeline cleaning system of claim 1, wherein a conductivity detector, a pH meter and a flow meter are arranged on the recovery pipeline, and a pH meter and a pressure meter are arranged in the wastewater tank.

9. A long distance pipe cleaning system as claimed in claim 1, wherein a transparent pipe is connected between the first output end of said tee and the waste water tank.

10. The long reach pipe cleaning system of claim 1, wherein said filter is connected to a backwash water inlet pipe and a backwash water outlet pipe, respectively.

Technical Field

The invention relates to the technical field of pipeline cleaning devices, in particular to a long-distance pipeline cleaning system.

Background

In order to ensure the long-term normal and safe operation of the pipeline in service, a pipe cleaner is required to be used regularly to discharge sundries such as wax, water, sand, condensate and the like in the pipeline. The mechanical pipe cleaner of intraductal work probably because intraductal too much debris that contains, can not take place deformation and block up the pipeline through pipeline reducing and elbow department or self, greatly reduced pipe cleaning work's efficiency even causes whole pipeline paralysis, causes the serious consequence, therefore mechanical pipe cleaner's the stifled problem of card is waited to solve urgently.

Disclosure of Invention

The invention aims to provide a long-distance pipeline cleaning system which can achieve a good cleaning effect on complex long-distance pipelines.

In order to solve the technical problem, the invention provides a long-distance pipeline cleaning system, which comprises a gel plug preparation device, a cleaning train injection device and a collecting and neutralizing device, wherein the gel plug preparation device is used for preparing gel plugs;

the gel plug preparation device comprises a static mixer, a gel matrix adding device and a cross-linking agent adding device which are connected to the head end of the static mixer, and a gel plug injection pipeline connected to the tail end of the static mixer, wherein the gel matrix adding device comprises a gel barrel for containing a gel matrix and a gel matrix output pipeline, and a sine pump is arranged on the gel matrix output pipeline; the cross-linking agent adding device comprises a cross-linking agent barrel for containing the cross-linking agent and a cross-linking agent output pipeline, and a dosing pump is arranged on the cross-linking agent output pipeline; the gel plug injection line is used for molding and outputting a cross-linked gel plug;

the cleaning train injection device is arranged at the starting end of the main pipeline and comprises a plurality of independent cleaning liquid injection devices for injecting the cleaning train into the main pipeline; each cleaning liquid injection device comprises a cleaning liquid tank for preparing cleaning liquid, the cleaning liquid tank is connected to the main pipeline through a cleaning liquid conveying pipeline, and a stop valve and a check valve are sequentially arranged on the cleaning liquid conveying pipeline close to the main pipeline; a chemical feeding pump is arranged on the cleaning liquid conveying pipeline and used for pumping the cleaning liquid in the cleaning liquid tank into the main pipeline; the gel plug injection pipeline is connected to the main pipeline, and a stop valve is arranged at the position close to the main pipeline; the cleaning liquid conveying pipelines and the gel plug injection pipelines are sequentially connected to a main pipeline along a cleaning direction, and an inlet of the main pipeline is connected with a water inlet pipeline;

the collecting and neutralizing device is arranged at the tail end of the main pipeline and comprises a recovery pipeline, a waste water tank and a filter, the recovery pipeline is connected to the main pipeline, and a sensor for detecting a gel plug is arranged at the joint of the recovery pipeline and the waste water tank; a three-way pipe is arranged on the recovery pipeline, a first output end of the three-way pipe is communicated with the wastewater tank, and a second output end of the three-way pipe is communicated with the filter; the waste water tank is connected with a neutralization liquid pipeline, and an electric stirrer is arranged in the waste water tank; the bottom of the filter is connected to the main pipeline through a filtered water pipeline.

Furthermore, the cross-linking agent output pipeline and the cleaning liquid conveying pipeline are both connected with a return pipeline, the return pipelines respectively lead to the cross-linking agent barrel and the cleaning liquid tank, and stop valves are arranged on the return pipelines.

Furthermore, the tail end of the static mixer is connected with a three-way pipe, the first output end of the three-way pipe is connected with the gel plug injection pipeline, and the second output end of the three-way pipe is provided with a sampling point.

Further, the gel plug injection line is a hose, and the diameter of the hose is adapted to the diameter of the main pipeline.

Furthermore, the gel matrix output pipeline is connected with a flushing water pipeline, and a stop valve and a check valve are sequentially arranged at the joint of the cross-linking agent output pipeline, which is close to the static mixer.

Furthermore, flow meters are arranged on the cleaning liquid conveying pipeline and the water inlet pipeline.

Further, the number of the cleaning solution injection devices is three, and the cleaning solution injection devices are respectively an acidic cleaning solution injection device, an alkaline cleaning solution injection device and a disinfectant injection device.

Furthermore, a conductivity detector, a pH meter and a flow meter are arranged on the recovery pipeline, and a pH meter and a pressure meter are arranged in the wastewater tank.

Further, a transparent pipe is connected between the first output end of the three-way pipe and the waste water tank.

Furthermore, a backwash water inlet pipe and a backwash water outlet pipe are respectively connected to the filter.

The invention has the beneficial effects that:

1. according to the long-distance pipeline cleaning system, the cleaning train consisting of the pair of gel plugs and the cleaning liquid positioned between the pair of gel plugs is injected into the pipeline to be cleaned, wherein the gel plugs formed by gel crosslinking have excellent trafficability, and can be adapted to pipelines with different diameters, different lengths and different configurations through complex pipelines with barriers such as valves, elbows and reducing diameters; secondly, the gel plug is convenient for capturing fragments, particles, residues and the like existing in the pipe, and is beneficial to improving the cleaning effect; in addition, the gel plug can be degraded after neutralization, and is convenient to recycle.

2. The long-distance pipeline cleaning system provided by the invention can be used for injecting acid cleaning solution, alkaline cleaning solution, disinfectant and the like respectively by arranging a plurality of independent cleaning solution injection devices, and can be used for cleaning different pipelines.

Drawings

FIG. 1 is a schematic view of a gel plug preparation apparatus according to the present invention;

FIG. 2 is a schematic illustration of the cleaning train injection apparatus of the present invention;

FIG. 3 is a schematic view of the connection of the cleaning solution delivery line, the gel plug injection line and the main conduit;

FIG. 4 is a schematic view of a collection and neutralization apparatus of the present invention;

wherein: 111. a gel bucket; 112. a gel matrix output line; 113. a sine pump; 114. a flush water line; 121. a crosslinker barrel; 122. a crosslinker output line; 123. a dosing pump; 124. a stop valve; 125. a check valve; 126. a return line; 130. a static mixer; 131. a three-way pipe; 132. sampling points; 140. gel plug injection lines; 141. a stop valve;

210. cleaning a liquid tank; 220. a cleaning fluid delivery line; 230. a dosing pump; 240. a return line; 250. a stop valve; 260. a check valve; 270. a water pipe; 280. a stirring paddle;

300. a main pipeline; 310. a water pump; 320. a water inlet line; 330. a stop valve;

410. a recovery pipeline; 420. a three-way pipe; 430. a transparent tube; 440. a wastewater tank; 450. a neutralization liquid conduit; 460. an electric stirrer; 470. a filter; 480. a filtered water pipeline; 491. a backwash water inlet pipe; 492. and a back flushing water outlet pipe.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As described in the background, the cleaning of the pipe in the prior art generally includes chemical cleaning methods, physical cleaning methods, and a combination of physical cleaning and chemical cleaning methods. Wherein, the service life of the pipeline can be reduced and the cleaning cost can be improved by only using chemical reagent for cleaning, and some dirt is difficult to be completely treated by a chemical method; similarly, the ideal effect after the transfusion is difficult to achieve by only using a mechanical pipe cleaner. The combined use of physical cleaning and chemical cleaning methods has become a trend in the development of current pipe cleaning technologies that combine the use of physical and chemical cleaning techniques with advantages that are not comparable to conventional mechanical pig or chemical cleaning. However, for complex long distance pipes (e.g., diameter reduction, valves, elbows, etc.), none of the above cleaning methods has achieved good cleaning results.

In order to solve the technical problem, the invention provides a long-distance pipeline cleaning system which comprises a gel plug preparation device, a cleaning train injection device and a collecting and neutralizing device.

Referring to fig. 1, the gel plug preparation apparatus includes a static mixer 130, a gel matrix adding apparatus and a crosslinking agent adding apparatus connected to a head end of the static mixer 130, and a gel plug injection line 140 connected to a tail end of the static mixer 130. Wherein, the gel matrix adding device comprises a gel barrel 111 for containing the gel matrix and a gel matrix output pipeline 112, and the gel barrel 111 is preferably obliquely arranged; one end of the gel matrix output pipeline 112 is connected to the bottom of the gel barrel 111, the other end is connected to the head end of the static mixer 130, and the gel matrix output pipeline 112 is provided with a sine pump 113. Preferably, a flushing water line 114 is connected to the gel matrix output line 112 to flush the gel matrix output line 112 to prevent the gel matrix from blocking the pipe.

The cross-linking agent adding device comprises a cross-linking agent barrel 121 for containing the cross-linking agent and a cross-linking agent output pipeline 122, a stop valve 124 and a check valve 125 are sequentially arranged at the joint of the cross-linking agent output pipeline 122 close to the static mixer 130, and a dosing pump 123 is arranged on the cross-linking agent output pipeline 122. Pressure gauges are provided on both the gel matrix outlet line 112 and the crosslinker outlet line 122 for detecting the pressure in the tubing. In the invention, the flow rate of the cross-linking agent in the pipeline is determined according to the flow rate of the gel matrix, and is generally 1.5-3% of the volume of the gel matrix. Preferably, a return line 126 is connected to the crosslinking agent output line 122, the return line 126 leads to the crosslinking agent tank 121, and a stop valve is disposed on the return line 126. The return line 126 serves to circulate the crosslinking agent, preventing the crosslinking agent from settling, and making the crosslinking agent more uniform.

The gel matrix and the cross-linking agent which are conveyed by the gel matrix adding device and the cross-linking agent adding device according to the proportion are mixed and cross-linked in the static mixer 130 to form the cross-linked gel. The end of the static mixer 130 is connected with a tee 131, the first output end of the tee 131 is connected with the gel plug injection pipeline 140, the second output end is provided with a sampling point 132, and the sampling point 132 can sample the gel plug to control the appearance quality. The gel plug injection line 140 is used to deliver gel plugs capable of adapting to pipe diameter changes into the pipe (main pipe 300) to be cleaned, and is preferably provided with a pressure gauge and a flow meter.

In the present invention, the gel plug injection line 140 is preferably a flexible tube having a diameter that is compatible with the diameter of the main conduit 300, as shown in the following table.

TABLE 1 relationship of gel plug transfer line to pipe diameter to be cleaned

Diameter of pipe to be cleaned (mm)	Diameter of gel plug conveying pipeline (mm)
		≤152	25.4
152～610	50.8
		≥610	76.2

Referring to fig. 2, the washing train injection unit is provided at a start end of the main pipe 300, and includes a plurality of independent washing liquid injection units for injecting the washing train into the main pipe 300. The "cleaning train" herein refers to a "block" consisting of a pair of gel plugs and a cleaning fluid located between the gel plugs.

Each cleaning liquid injection device comprises a cleaning liquid tank 210 for configuring cleaning liquid, the cleaning liquid tank 210 is connected to the main pipe 300 through a cleaning liquid conveying pipeline 220, a dosing pump 230 and a flow meter are arranged on the cleaning liquid conveying pipeline 220, and a stop valve 250 and a check valve 260 are sequentially arranged at the connection position close to the main pipe 300. Similarly, a return line 240 is connected to the cleaning solution delivery line 220, the return line 240 leads to the cleaning solution tank 210, and a shutoff valve is provided in the return line 240.

According to the invention, by arranging the plurality of cleaning liquid injection devices, different cleaning liquids can be switched according to different pipelines. In this embodiment, the number of the cleaning solution injection devices is three, and the cleaning solution injection devices are an acidic cleaning solution injection device, an alkaline cleaning solution injection device and a disinfectant injection device, wherein the acidic cleaning solution can be nitric acid, the alkaline cleaning solution can be sodium hydroxide, and the disinfectant can be divusan Omega HP or sodium hypochlorite. Some of the selected cleaning solutions, which may be liquid without any formulation, such as nitric acid, may be added directly to the cleaning solution tank 210. While some are powders that must be dissolved in the cleaning solution tank 210, this may be the case with sodium hydroxide. Therefore, in the alkaline cleaning liquid injection device of the present embodiment, the cleaning liquid tank 210 is connected to the water pipe 270, and the stirring paddle 280 is disposed.

The gel plug injection line 140 is connected to the main pipe 300 for injecting the prepared gel plug into the main pipe 300, and a stop valve 141 is provided at a connection position adjacent to the main pipe 300. The plurality of wash liquid delivery lines 220, the gel plug injection line 140 are connected to the main pipe 300 in sequence along the washing direction, and fig. 3 shows 2 cases where the wash liquid delivery lines 220, the gel plug injection line 140 are connected to the main pipe 300.

The inlet of the main pipe 300 is connected with a water inlet pipe 320, and the water inlet pipe 320 is provided with a water pump 310 and a flow meter. The flow of water delivered by the water inlet line 320 to the main conduit 300 is used to propel the wash train forward in the conduit. While the dosing pump 230 can be adjusted to the flow of water in the main conduit 300 to achieve the desired wash liquor concentration in the conduit. In this embodiment, the main pipe 300 is further provided with a stop valve 330 and a pressure gauge.

Referring to fig. 4, a collection and neutralization unit is provided at the end of the main pipe 300, which includes a recovery pipe 410, a waste water tank 440, and a filter 470. Wherein, the recovery pipeline 410 is connected to the main pipeline 300, and is provided with a conductivity detector, a pH meter and a flow meter, and a sensor for detecting the gel plug is arranged at the connection part of the recovery pipeline and the main pipeline 300. The end of the recovery pipe 410 is connected to a tee 420, the tee 420 having a first output leading to a waste water tank 440 and a second output leading to a filter 470. The recovery pipe 410 is also provided with an automatic valve composed of a plurality of valves. When the first gel plug is detected, the automatic valve is opened and the cleaning train is transported to a waste water tank 440 for processing. When a second gel plug is detected and sent to the waste tank 440, the valve associated with the waste tank 440 is closed, the valve associated with the filter 470 is opened, and the water in the main conduit 300 is directed to the filter 470.

The waste water tank 440 is used for collecting the gel plug and the cleaning solution in the main pipe 300, and is connected with a neutralizing solution pipe 450 for injecting a neutralizing agent such as citric acid, chlorine dioxide and the like into the waste water tank 440 to neutralize the cleaning solution. An electric stirrer 460 is provided in the waste water tank 440 to decompose the gel plug. The solution obtained after neutralization and decomposition can be sent to a sewage pipe network for further treatment. In this embodiment, a pH meter and a pressure gauge are disposed in the wastewater tank 440, and a transparent pipe 430 is connected between the first output end of the three-way pipe 420 and the wastewater tank 440.

The bottom of the filter 470 is connected to the main conduit 300 by a filtered water conduit 480, and the filter 470 is used to remove potential gel residues from the water and ensure the quality of the water returning to the main conduit 300. After a period of treatment, after the water quality is verified, the water flowing out of the main line is not introduced into the filter 470. In the present invention, the filter 470 may be a water filter 470 commonly used in the art. Preferably, the filter 470 is connected to a backwash water inlet pipe 491 and a backwash water outlet pipe 492, respectively, so as to clean the filter element of the filter 470.

The working process of the long-distance pipeline cleaning system comprises the following steps:

firstly, in the gel plug preparation device, the gel matrix and the cross-linking agent are conveyed into the static mixer 130 according to the proportion for mixing and cross-linking, and after sampling verification meets the requirement, the cross-linked gel enters the gel plug injection pipeline 140 to form the gel plug with a certain diameter.

Secondly, in the injection device for cleaning train, the gel plug injection pipeline 140 firstly injects a gel plug into the main pipeline 300, then selects a proper cleaning solution, injects the cleaning solution into the main pipeline 300 through the dosing pump 230, and then injects another gel plug into the main pipeline 300, so as to form a cleaning train. The cleaning train moves in the main pipeline 300 under the driving of water flow, and the main pipeline 300 is cleaned.

Finally, in the collection neutralization apparatus, when the first gel plug in the main pipe 300 is detected, the automatic valve on the recovery pipe 410 is opened, and the first gel plug and the cleaning solution are conveyed to the waste water tank 440 for neutralization and decomposition; when a second gel plug is detected and sent to waste tank 440, the valve associated with waste tank 440 is closed, the valve associated with filter 470 is opened, the water in main conduit 300 is directed to filter 470, and the filtered water is validated and directed to main conduit 300. After a period of treatment, after the water quality is verified, the water flowing out of the main line is not introduced into the filter 470.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.