CN111974765A - Steel pipe inner wall cleaning device and steel pipe inner wall alkali washing process - Google Patents
Steel pipe inner wall cleaning device and steel pipe inner wall alkali washing process Download PDFInfo
- Publication number
- CN111974765A CN111974765A CN202010869633.1A CN202010869633A CN111974765A CN 111974765 A CN111974765 A CN 111974765A CN 202010869633 A CN202010869633 A CN 202010869633A CN 111974765 A CN111974765 A CN 111974765A
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- steel pipe
- cleaning
- wall
- spraying
- alkali liquor
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 141
- 239000010959 steel Substances 0.000 title claims abstract description 141
- 239000003513 alkali Substances 0.000 title claims abstract description 107
- 238000004140 cleaning Methods 0.000 title claims abstract description 105
- 238000005406 washing Methods 0.000 title claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 99
- 239000007921 spray Substances 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 18
- 238000009736 wetting Methods 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 9
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000004519 grease Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a steel pipe inner wall cleaning device and a steel pipe inner wall alkali washing process. A cleaning device for the inner wall of a steel pipe comprises a plurality of main pipelines and a bracket, wherein one end of each main pipeline is connected with a spray liquid container, the other end of each main pipeline can extend into the steel pipe, and the bracket is used for supporting and fixing the main pipelines; a plurality of spraying devices are arranged on each main pipeline; the bracket is provided with a plurality of roller devices which can guide the bracket to move along the inner wall of the steel pipe; and the bracket is also provided with a plurality of wiping devices capable of wiping the inner wall of the steel pipe. The alkali washing process for the inner wall of the steel pipe is completed by using the steel pipe inner wall cleaning device; the main pipeline moves from one end of the steel pipe to the other end of the steel pipe, and the cleaning and spraying device performs wetting and spraying on the inner wall of the rotating steel pipe; the main pipeline returns according to the original path, and the alkali liquor spraying device, the wiping device and the cleaning spraying device sequentially carry out the operations of alkali liquor spraying, wiping, cleaning spraying and the like on the inner wall. The invention can realize continuous mechanical oil stain removal on the inner wall of the steel pipe and improve the product quality.
Description
Technical Field
The invention relates to the technical field of pipeline coating, in particular to a steel pipe inner wall cleaning device and a steel pipe inner wall alkali washing process.
Background
In recent years, corrosion-resistant coatings for steel pipe surfaces have been commonly applied. The adhesion quality of the coating and the base material of the anti-corrosion coating is a direct quality index which directly influences the performance and the service life of the anti-corrosion coating, and the pretreatment of the surface of the steel pipe is a key link during coating construction. The greasy dirt cleaning of the steel pipe surface is often very important as a ring in the pretreatment. At present, before the anti-corrosion coating of the steel pipe of the long-distance pipeline is coated, oil stains, organic fat and other pollutants on the surface of the steel pipe need to be completely removed so as to avoid seriously influencing the adhesion of the coating on the surface of the steel pipe and the anti-corrosion quality of the coating. However, in the industry at the present stage, the oil stains are generally removed by adopting modes such as manual wiping or manual spraying, the rough operation mode is often incomplete, especially for the oil stains and the oil stains on the inner wall of the steel pipe, the cleaning effect under the cleaning mode is worse, the hidden trouble of the quality of the coating is brought, the efficiency is low, and the environment is easily polluted.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a steel pipe inner wall cleaning device and a steel pipe inner wall alkali washing process, which mainly solve the technical problems in the prior art, can avoid adopting modes of manual wiping or manual spraying and the like to remove oil stains and grease, can realize continuous mechanical removal of the oil stains and grease on the inner wall of the steel pipe, and improve the product quality.
(II) technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a steel pipe inner wall belt cleaning device which characterized in that: the device comprises a plurality of main pipelines and a bracket, wherein one end of each main pipeline is connected with a spray liquid container, and the other end of each main pipeline can extend into a steel pipe; a plurality of spraying devices are arranged on each main pipeline; the bracket is provided with a plurality of roller devices which can guide the bracket to move along the inner wall of the steel pipe; and the bracket is also provided with a plurality of wiping devices capable of wiping the inner wall of the steel pipe.
Further, the wiping device comprises a wiping end and a wiping connecting support, one end of the wiping connecting support is connected with the wiping end, and the other end of the wiping connecting support is rotatably connected with the support; the roller device comprises a roller and a roller connecting support, one end of the roller connecting support is connected with the roller, and the other end of the roller connecting support is connected with the support.
Further, a plurality of trunk lines divide into and wash the trunk line and alkali lye trunk line two sets ofly, link to each other with outside water tank and outside alkali lye container respectively, are equipped with a plurality of washing spray set on the washing trunk line, are equipped with a plurality of alkali lye spray set on the alkali lye trunk line.
Furthermore, water pumps for increasing water pressure are respectively arranged in the external water tank and the external alkali liquor container; or water pumps for increasing water pressure are respectively arranged between the spraying device and the external water tank and between the alkali liquor spraying device and the external alkali liquor container.
Furthermore, the cleaning and spraying device comprises a cleaning and spraying head and a cleaning and connecting branch pipe, wherein one end of the cleaning and connecting branch pipe is connected with the cleaning and spraying head, and the other end of the cleaning and connecting branch pipe is connected with the main cleaning pipeline in an angle-adjustable manner; the alkali liquor spraying device comprises an alkali liquor spraying head and an alkali liquor connecting branch pipe, wherein one end of the alkali liquor connecting branch pipe is connected with the alkali liquor spraying head, and the other end of the alkali liquor connecting branch pipe is connected with an alkali liquor main pipeline in an angle-adjustable manner.
An alkali washing process for the inner wall of a steel pipe is characterized by comprising the following steps: the method is completed by using the device for cleaning the inner wall of the steel pipe, and comprises the following steps:
firstly, rotating a steel pipe around a central shaft of the steel pipe, enabling the main pipeline to enter from one end of the steel pipe and move to the other end of the steel pipe 1, and wetting and spraying the steel pipe sections entering the spraying range of the cleaning and spraying device until the inner wall of the steel pipe is fully wetted;
secondly, the steel pipe continues to rotate around the central shaft, the main pipeline returns to the inlet end of the steel pipe in the opposite direction, and the alkali liquor spraying device sprays alkali liquor on the section of the steel pipe entering the spraying range of the alkali liquor spraying device until the inner wall of the steel pipe is completely sprayed with the alkali liquor; the wiping device synchronously wipes the inner wall of the steel pipe after the alkali liquor spraying is finished until all the parts of the inner wall of the steel pipe sprayed with the alkali liquor are wiped; and meanwhile, the cleaning and spraying device cleans and sprays the inner wall of the cleaned steel pipe within the spraying range until the inner wall of the steel pipe is completely cleaned.
(III) advantageous effects
Compared with the prior art, the invention provides a steel pipe inner wall cleaning device and a steel pipe inner wall alkali washing process, which have the following beneficial effects:
1. the main pipeline one end is connected and is sprayed liquid container, the other end can stretch into in the steel pipe, is equipped with a plurality of spray set on it, and after the main pipeline stretched into in the steel pipe, spray set on it can spray the operation to the steel pipe, and according to the spray liquid difference that its main pipeline connected, each group of spray set spouts the inside spray liquid of steel pipe also different. When a part of main pipeline is connected with an external water tank and a part of main pipeline is connected with an external alkali liquor container, the inner wall of the steel pipe can be wetted and sprayed with alkali liquor to be cleaned step by step, and the alkali liquor can better dissolve oil stains on the inner wall of the steel pipe, so that the final cleaning quality is improved.
2. The support that is equipped with support and fixed trunk line jointly on a plurality of trunk lines, the trunk line of being convenient for is portable more stable in getting into the steel pipe, does not scatter, can be effectively with a plurality of trunk lines stable in the position of relative height.
3. The roller device is added, so that the effect of supporting the main pipeline can be achieved, and the bracket can be guided to move the main pipeline in the steel pipe.
4. The wiping device is additionally arranged, so that the oil stain which cannot be directly removed by the spraying liquid can be wiped, the oil stain can be further removed, and the oil stain removing effect is enhanced.
The invention can avoid adopting modes of manual wiping or manual spraying and the like to remove oil stains and grease, can realize continuous mechanical removal of the oil stains and grease on the inner wall of the steel pipe, and improves the cleaning quality and efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure, 1-steel pipe, 2-bracket, 3-cleaning spray device, 3-1-first cleaning spray head, 3-2-second cleaning spray head, 4-wiping device, 4-1-first wiping end, 4-2-second wiping end, 5-alkali liquor spray device, 5-1-first alkali liquor spray head, 5-2-second alkali liquor spray head, 6-roller device, 6-1-first roller device, 6-2-second roller device and 7-engine motor.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the invention provides a steel pipe inner wall cleaning device, which comprises a plurality of main pipelines and a bracket 2, wherein one end of each main pipeline is connected with a spray liquid container, and the other end of each main pipeline can extend into a steel pipe 1; a plurality of spraying devices are arranged on each main pipeline; a plurality of roller devices 6 capable of guiding the bracket to move along the inner wall of the steel pipe 1 are arranged on the bracket 2; the support 2 is also provided with a plurality of wiping devices 4 which can wipe the inner wall of the steel pipe 1.
Preferably, the wiping device 4 comprises a wiping end and a wiping connecting bracket, one end of the wiping connecting bracket is connected with the wiping end, and the other end of the wiping connecting bracket is rotatably connected with the bracket 2; the roller device 6 comprises a roller and a roller connecting support, one end of the roller connecting support is connected with the roller, and the other end of the roller connecting support is connected with the support 2.
Preferably, a plurality of trunk lines divide into and wash trunk line and alkali lye trunk line two sets ofly, link to each other with outside water tank and outside alkali lye container respectively, are equipped with a plurality of washing spray set 3 on the washing trunk line, are equipped with a plurality of alkali lye spray set 5 on the alkali lye trunk line.
Preferably, water pumps for increasing water pressure are respectively arranged in the external water tank and the external alkali liquor container; or water pumps for increasing water pressure are respectively arranged between the spraying device and the external water tank and between the alkali liquor spraying device and the external alkali liquor container.
Preferably, the cleaning and spraying device 3 comprises a cleaning and spraying head and a cleaning and connecting branch pipe, wherein one end of the cleaning and connecting branch pipe is connected with the cleaning and spraying head, and the other end of the cleaning and spraying branch pipe is connected with the main cleaning pipeline in an angle-adjustable manner; the alkali liquor spraying device 5 comprises an alkali liquor spraying head and an alkali liquor connecting branch pipe, wherein one end of the alkali liquor connecting branch pipe is connected with the alkali liquor spraying head, and the other end of the alkali liquor connecting branch pipe is connected with an alkali liquor main pipeline in an angle-adjustable manner.
One end of the main pipeline is connected with the spraying liquid container, and the other end of the main pipeline can extend into the steel pipe 1, the invention can comprise a plurality of main pipelines, each main pipeline can be provided with a plurality of spraying devices, and meanwhile, the main pipelines can be grouped according to different spraying liquids conveyed by each main pipeline, for example, the invention comprises six main pipelines, wherein every two main pipelines are respectively connected with a clean water container, an alkali liquor container, a salt water container and the like, two main pipelines connected with the clean water container can be divided into a group called a cleaning main pipeline, and the spraying devices arranged on the main pipelines are called cleaning spraying devices; the two main pipelines connected with the alkali liquor container can be divided into a group called as an alkali liquor main pipeline, and the spraying devices arranged on the main pipelines are called as alkali liquor spraying devices; and so on. The spraying device is a device which is connected to the main pipeline and can spray the spraying liquid in the main pipeline to the inner wall of the steel pipe 1, generally has a spray head structure, and can comprise a plurality of spray heads, and each spray head can be directly connected to the main pipeline or can be connected with the main pipeline through a connecting branch pipe. The spray headers in each group of spray devices can be distributed according to different cleaning angles and cleaning schemes.
In this embodiment, contain two trunk lines (not marked in the drawing), be the washing trunk line of being connected with outside water tank and the alkali lye trunk line of being connected with outside alkali lye container respectively, the trunk line end of the main part of two trunk lines is the straight line pipe, is wrapped up in support 2, still is equipped with the water pump unit that increases water pressure in the outside water tank that links to each other with the washing trunk line, can realize the high pressure and spray abluent purpose, further improves the abluent quality of greasy dirt.
The cleaning spray devices 3 arranged on the cleaning main pipeline are divided into two groups, namely a first cleaning spray header 3-1 and a second cleaning spray header 3-2; each group of spray headers contains two 921 models of plastic spray heads and are respectively connected with the main cleaning pipeline through cleaning connecting branch pipes; the alkali liquor spraying devices 5 arranged on the main alkali liquor pipeline are divided into two groups, namely a first alkali liquor spraying head 5-1 and a second alkali liquor spraying head 5-2, each group of spraying heads comprises two 921-type plastic spraying heads, and the two groups of spraying heads are respectively connected with the main alkali liquor pipeline through alkali liquor connecting branch pipes; the cleaning connecting branch pipe and the alkali liquor connecting branch pipe can be made of plastics or rubber materials, can also be made of steel, can be fixedly connected with the main pipeline, can also be connected in an angle-adjustable mode, such as rotary connection, telescopic connection and the like, so that the spraying angle of the spraying head can be adjusted at any time, and the aim of spraying on the inner walls of steel pipes 1 in different sizes is fulfilled. In this embodiment, wash the connecting branch pipe, alkali lye connecting branch pipe and clean the one end of connecting piece and equally divide and do not pass through bolt and support 2 hookup fixedly to realize belt cleaning device 3, alkali lye spray set 5 and cleaning device 4's angle modulation purpose.
The support 2 is mainly for supporting and fixed a plurality of trunk lines, and it can be for around the frame construction in a plurality of trunk line outer lanes, also can be the cavity pipeline, arranges a plurality of trunk lines in it intraductally, ensures that relative position can fix between each trunk line, is convenient for together get into 1 inside pipeline cleaning processes that carry out of steel pipe. In this embodiment, hollow pipeline structure is adopted to supporting structure, wrap up the trunk line of a plurality of linear types in its middle, its outside still is equipped with a plurality of groups of gyro wheel devices 6 that can guide support 2 to remove along 1 inner wall of steel pipe, gyro wheel device 6 plays the effect of support 2 and trunk line on the one hand, make it keep at specific height throughout when 1 intraductal removal of steel pipe, on the other hand also is for guide support 2 to lead the trunk line to remove along 1 inner wall of steel pipe, according to the length difference of trunk line, can set up multiunit gyro wheel device 6 in the different positions of support 2. In this embodiment, the roller devices 6 are provided in two groups, i.e., a first roller device 6-1 and a second roller device 6-2, and the first roller device 6-1 and the second roller device 6-2 both include two rollers and are connected to the bracket 2 through connecting members, respectively.
The wiping device 4 is additionally arranged, the alkali liquor sprayed on the inner wall of the steel pipe 1 can be fully smeared on the inner wall of the steel pipe 1, the inner wall of the steel pipe 1 smeared with the alkali liquor is wiped, oil stains on the inner wall of the steel pipe 1 are better removed, and the oil stain and grease removing effect is enhanced. The wiping device 4 may be a sponge brush, a plastic brush, or a steel wire ball brush, etc.
In this embodiment, the wiping device 4 comprises two wiping ends, namely a first wiping end 4-1 and a second wiping end 4-2, which are respectively connected with the bracket 2 through a connecting piece; the wiping end is a square component wrapped with sponge materials, can fully absorb the sprayed alkali liquor mixture, and fully coats the alkali liquor mixture on the inner wall of the steel pipe 1 in the wiping process, so that the alkali liquor mixture is effectively contacted with the inner wall of the steel pipe 1, and the effect of removing oil stains and grease is enhanced.
In this embodiment, the cleaning device 3, the wiping device 4, the alkaline cleaning device 5, and the roller device 6 are arranged in this order from left to right. The above distribution mode is not exclusive, and the relative positions of each device can be exchanged or distributed in a mixed way, for example, at least one group of wiping devices 4 or alkaline devices 5 is additionally arranged at the left side of the cleaning device 3. During cleaning, the spraying time, dosage and pressure of each group of spraying devices are controlled by controlling the on-off of the corresponding spraying device group.
When cleaning the inner wall of the steel pipe 1, the cleaning device needs to enter the steel pipe 1 so that each group of spraying devices can effectively spray the steel pipe 1. In order to achieve the above object, the steel pipe 1 and the cleaning device may be moved to each other, or both may be moved to each other. In the invention, the steel pipe 1 rotates around the central axis on the rotating table in the cleaning process, the other end of the bracket 2 is connected with the engine motor 7, and the main pipeline is sent into the steel pipe 1 by the power provided by the engine 7.
The alkali washing process for the inner wall of the steel pipe is completed by using the steel pipe inner wall cleaning device, and comprises the following steps of:
step one, steel pipe entering: a single light pipe of the steel pipe 1 sequentially enters an alkaline washing treatment rack for treatment, the racks are two groups of cross beam type, the distance between the racks is about 6m, and the height difference between the two groups of racks from the ground is 50 mm;
secondly, rotating the rotary table on the steel pipe 1: the device consists of two groups of rotary supporting wheels, and each group comprises two rubber wheels. The height difference between the two groups of wheels is 30mm, the wheel group at the end close to the cleaning device is low, the wheel group at the end far away from the cleaning device is high, and the baffle is arranged at the lower end close to the pipe orifice, so that the steel pipe 1 is prevented from displacing in the rotating process;
step three, wetting and spraying: the cleaning and spraying device 3 enters the steel pipe 1 from the lower end to the other end of the steel pipe 1, and the cleaning and spraying device is opened to wet the inner wall. In the embodiment, deionized water/distilled water with the temperature of 50-60 ℃ is used, the inner wall of the steel pipe 1 is sprayed under the pressure of 0-3MPa and the width of about 500mm, and the inner wall is ensured to be fully soaked until the inner wall of the steel pipe 1 is completely wetted;
fourthly, alkali liquor spraying: the cleaning and spraying device returns from the far end of the steel pipe 1 at an adjustable speed at a constant speed, and at the moment, the alkali liquor spraying device 5 is started. In the embodiment, a mixture of deionized water/distilled water and alkali liquor with the temperature of 50-60 ℃ is used, the concentration of the mixture is about 8% (which can be adjusted according to the cleaning quality), the mixture is sprayed on the inner wall of the steel pipe 1 in a normal pressure manner, and the width of the mixture is about 100-300mm until all parts, cleaned and sprayed, on the inner wall of the steel pipe 1 are sprayed by the alkali liquor;
fifthly, wiping and high-pressure water cleaning: in the return process of the cleaning and spraying device 3, the wiping end of the wiping device 4 is contacted with the inner wall of the rotating steel pipe 1, and the inner wall of the sprayed steel pipe 1 is repeatedly brushed; meanwhile, the cleaning and spraying device 3 is started, deionized water/distilled water with the temperature of 50-60 ℃ is used in the embodiment, the wiped inner wall of the steel pipe 1 is washed under the pressure of 3-6MPa and the width of the steel pipe is about 100-300mm, the degreasing effect is ensured, and meanwhile, the alkali liquor is completely removed until the inner wall of the steel pipe 1 is completely cleaned.
In this embodiment, the cleaning and spraying device 3 is located at the foremost end of the bracket, and the spraying width of the alkali liquor spraying device 5 is larger than that of the cleaning and spraying device 3. In the cleaning process of the inner wall of the steel pipe 1, the steel pipe 1 has an inclination angle, and the cleaning and spraying device 3 enters the steel pipe 1 from the lower end of the steel pipe 1, so that the pipe can be more easily fed and withdrawn.
The cleaning device moves from the lower end to the higher end on the inner wall of the steel pipe 1, and then exits from the steel pipe 1 from the higher end to the lower end in the opposite direction. In the former process, the cleaning device 3 is started to spray and wet the whole inner wall of the steel pipe 1. And then, entering the next return process, starting the alkali liquor spraying device 5, performing alkali liquor spraying operation on the inner wall of the steel pipe 1 to be wetted, synchronously wiping the inner wall of the steel pipe 1 to be sprayed with the alkali liquor by the wiping device 4, and performing spray cleaning on the inner wall of the steel pipe 1 to be wiped by the cleaning and spraying device 3 until the inner wall of the steel pipe 1 is completely cleaned. The above operation process can be circularly carried out until the inner wall of the steel pipe 1 is cleaned to remove oil stains according to the preset standard.
In the embodiment, the cleaning device is adopted to enter the steel pipe 1, the rotating steel pipe 1 does not need to be moved, the cleaning device only needs to be moved forwards, and the operation is simpler and more efficient.
The use of deionized water can reduce scale, but the temperature of the deionized water is too low, so that the surface is not easy to be fully wetted or oil or lipid substances are not easy to remove, the temperature is too high, the effect is not obvious, and energy is wasted. In the embodiment, deionized water at 50-60 ℃ is used in the wetting spray, alkali liquor spray and high-pressure cleaning links, scale can be reduced by using the deionized water, and oil stains on the inner wall of the steel pipe 1 can be better softened in the spray cleaning process by using water at 50-60 ℃, so that the alkali cleaning effect is enhanced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a steel pipe inner wall belt cleaning device which characterized in that: comprises a plurality of main pipelines, a bracket (2) and a water tank, wherein one end of each main pipeline is connected with a spraying liquid container, the other end of each main pipeline can extend into a steel pipe (1), and the bracket is used for supporting and fixing the main pipelines; a plurality of spraying devices are arranged on each main pipeline; a plurality of roller devices (6) capable of guiding the support to move along the inner wall of the steel pipe (1) are arranged on the support (2); the support (2) is also provided with a plurality of wiping devices (4) which can wipe the inner wall of the steel pipe (1).
2. The cleaning device for the inner wall of the steel pipe as claimed in claim 1, wherein: the wiping device (4) comprises a wiping end and a wiping connecting support, one end of the wiping connecting support is connected with the wiping end, and the other end of the wiping connecting support is rotatably connected with the support (2); the roller device (6) comprises a roller and a roller connecting support, one end of the roller connecting support is connected with the roller, and the other end of the roller connecting support is connected with the support (2).
3. The cleaning device for the inner wall of the steel pipe as claimed in claim 2, wherein: a plurality of trunk lines divide into and wash the trunk line and alkali lye trunk line two sets ofly, link to each other with outside water tank and outside alkali lye container respectively, are equipped with a plurality of washing spray set (3) on the washing trunk line, are equipped with a plurality of alkali lye spray set (5) on the alkali lye trunk line.
4. The cleaning device for the inner wall of the steel pipe as claimed in claim 4, wherein: the cleaning and spraying device (3) comprises a cleaning and spraying head and a cleaning and connecting branch pipe, wherein one end of the cleaning and connecting branch pipe is connected with the cleaning and spraying head, and the other end of the cleaning and connecting branch pipe is connected with the main cleaning pipeline in an angle-adjustable manner; the alkali liquor spraying device (5) comprises an alkali liquor spraying head and an alkali liquor connecting branch pipe, one end of the alkali liquor connecting branch pipe is connected with the alkali liquor spraying head, and the other end of the alkali liquor connecting branch pipe is connected with an alkali liquor main pipeline in an angle-adjustable manner.
5. The cleaning device for the inner wall of the steel pipe as claimed in claim 4, wherein: the cleaning and spraying device (3) comprises a cleaning and spraying head and a cleaning and connecting branch pipe, wherein one end of the cleaning and connecting branch pipe is connected with the cleaning and spraying head, and the other end of the cleaning and connecting branch pipe is connected with the main cleaning pipeline in an angle-adjustable manner; the alkali liquor spraying device (5) comprises an alkali liquor spraying head and an alkali liquor connecting branch pipe, one end of the alkali liquor connecting branch pipe is connected with the alkali liquor spraying head, and the other end of the alkali liquor connecting branch pipe is connected with an alkali liquor main pipeline in an angle-adjustable manner.
6. An alkali washing process for the inner wall of a steel pipe is characterized by comprising the following steps: the method is completed by using the steel pipe inner wall cleaning device according to any one of claims 3 to 5, and comprises the following steps:
step one, the steel pipe (1) rotates around the central axis, the main pipeline enters from one end of the steel pipe (1) and moves to the other end of the steel pipe (1), and the cleaning and spraying device (3) wets and sprays the pipe section of the steel pipe (1) entering the spraying range until the inner wall of the steel pipe (1) is wetted completely;
secondly, the steel pipe (1) continues to rotate around the central shaft, the main pipeline returns to the inlet end of the steel pipe (1) in the opposite direction, and the alkali liquor spraying device (5) sprays alkali liquor on the pipe section of the steel pipe (1) which enters the spraying range of the alkali liquor spraying device until the inner wall of the steel pipe (1) is completely sprayed with the alkali liquor; the wiping device (4) synchronously wipes the inner wall of the steel pipe (1) which finishes spraying the alkali liquor until all the parts of the inner wall of the steel pipe (1) sprayed with the alkali liquor are wiped; meanwhile, the cleaning and spraying device (3) cleans and sprays the inner wall of the steel pipe (1) which enters the spraying range and is cleaned completely until the inner wall of the steel pipe (1) is cleaned completely.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010869633.1A CN111974765A (en) | 2020-08-26 | 2020-08-26 | Steel pipe inner wall cleaning device and steel pipe inner wall alkali washing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010869633.1A CN111974765A (en) | 2020-08-26 | 2020-08-26 | Steel pipe inner wall cleaning device and steel pipe inner wall alkali washing process |
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| CN111974765A true CN111974765A (en) | 2020-11-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06128775A (en) * | 1992-10-21 | 1994-05-10 | Sumitomo Metal Ind Ltd | Manufacture of large diameter steel pipe |
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| CN212703468U (en) * | 2020-08-26 | 2021-03-16 | 海隆管道工程技术服务有限公司 | Steel pipe inner wall belt cleaning device |
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| CN212703468U (en) * | 2020-08-26 | 2021-03-16 | 海隆管道工程技术服务有限公司 | Steel pipe inner wall belt cleaning device |
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Application publication date: 20201124 |