A blowing and cleaning device for austenitic stainless steel pipeline

Abstract

The present invention discloses a purge device for austenitic stainless steel pipelines, which relates to the technical field of pipeline purge technology, and comprises a cleaning liquid storage tank, a high-pressure pump is fixedly installed at the bottom of the cleaning liquid storage tank, a purge pipe is connected to the output end of the high-pressure pump, the purge pipe is used to transport cleaning medium, and a purge assembly is used to spray cleaning medium, the purge assembly has a flared bucket installed around it, and a ring frame fixedly connected around the flared bucket, the purge assembly comprises an inner tube inserted in the purge pipe, a flat hole cavity is opened in a circular array in the inner wall of the inner tube, and the flat hole cavity is opened through the inner tube along the central axis direction of the inner tube. The purge device for austenitic stainless steel pipelines can perform all-round flushing of a unit cross section of the inner wall of the austenitic stainless steel pipeline, expands the spray range of the high-pressure cleaning medium sprayed from the flared hole, and repeatedly flushes the pipe wall at the same position in a fan-shaped scanning manner.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline flushing, in particular to a flushing device for an austenitic stainless steel pipeline. Background Art

[0002] Austenitic stainless steel is a steel with excellent corrosion resistance and mechanical strength. It is widely used in pipeline systems in the petroleum, chemical, food, pharmaceutical and other industries. Due to its unique chemical stability and mechanical properties, austenitic stainless steel pipelines are usually used to transport highly corrosive media, high-temperature fluids or high-purity substances. However, in these application environments, oil, particulate matter and other impurities are easily accumulated inside the pipeline, causing scaling and blockage on the inner wall of the pipeline, seriously affecting the pipeline's transportation efficiency and service life.

[0003] Traditional pipeline cleaning methods mainly include chemical cleaning, mechanical cleaning and high-pressure water jet cleaning. These methods have many shortcomings in practical applications; not only are the flushing methods single, but they are also unable to complete the efficient flushing of the inner wall of austenitic stainless steel pipelines. There are often either residual dirty flushing dead corners or residual flushing hidden dangers. In addition, due to the single flushing angle and single function, a large amount of water resources are directly required during the cleaning process, which wastes resources and the flushing effect is average, often failing to meet the flushing requirements of users. Summary of the invention

[0004] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: a purge device for an austenitic stainless steel pipeline, comprising a cleaning liquid storage tank, a high-pressure pump is fixedly installed at the bottom of the cleaning liquid storage tank, an output end of the high-pressure pump is connected to a purge pipe, and the purge pipe is used to transport a cleaning medium, and further comprises:

[0005] A purge assembly is used to spray a cleaning medium. The purge assembly has a flared bucket mounted around it and a ring frame fixedly connected around the flared bucket. The ring frame is made of plastic material as a whole. The ring frame is mounted around the purge assembly through the flared bucket. The purge pipe is connected to the flared bucket. The purge assembly is inserted into the purge pipe through the flared bucket.

[0006] A driving assembly, used for adjusting the angle of the cleaning medium sprayed by the purge assembly;

[0007] A first sealing ring, used for shielding and sealing the connection part between the purge assembly and the flaring bucket, a second sealing ring connected between the first sealing ring and the flaring bucket, and the second sealing ring and the first sealing ring are both installed around the purge assembly, and the second sealing ring has the same structure as the first sealing ring, and the second sealing ring is fitted and connected to the flaring bucket;

[0008] Among them, the purge assembly includes an inner tube inserted into the purge pipe, the inner wall of the inner tube is provided with a flat hole cavity in a circular array, and the flat hole cavity is opened through the inner tube along the central axis direction of the inner tube, an inclined guide sleeve is fixedly connected to the surface of the inner tube and one end away from the first sealing ring, and the inclined guide sleeve is connected to the inner tube in a circular array, the inclined guide sleeve is installed through the purge pipe, and the inner tube is positioned and installed with the inclined guide sleeve and the purge pipe.

[0009] Preferably, a purging head is installed at one end of the built-in tube away from the purging tube, and a joint is rotatably connected to one end of the purging head close to the built-in tube. The joint is threadedly installed with the built-in tube, a long sleeve is installed around the surface of the joint, and a guide cavity is opened in a circular array between the joint and the long sleeve, and the guide cavity is opened along the central axis direction of the joint, and the guide cavity is connected to the flat hole cavity.

[0010] Preferably, the blowing and cleaning head as a whole is composed of two sections of a coarse nozzle head and a fine nozzle head with different diameters, wherein the coarse nozzle head is rotatably connected to the joint, and the long sleeve is wrapped around the coarse nozzle head through the joint, and the coarse nozzle head is spirally opened with a spiral cavity on the surface, and the spiral cavity is connected with the guide cavity through the joint and the long sleeve, so as to facilitate the guidance of the high-pressure cleaning medium.

[0011] Preferably, the middle part of the surface of the coarse nozzle head and the fine nozzle head are provided with expansion holes in a circular array, and the central axis of the expansion holes is perpendicular to the central axis of the rinsing head. A boosting valve is installed inside the rinsing head, and the boosting valve is installed inside the fine nozzle head to increase the pressure of the cleaning medium entering the fine nozzle head.

[0012] Preferably, an internal spring is installed in the limit position at one end of the fine nozzle head away from the coarse nozzle head, a straight guide rod is installed in the middle of the blowing and cleaning head, the straight guide rod is installed through the boosting valve, the straight guide rod is elastically connected to the fine nozzle head through the internal spring, a double cone is installed on the surface of the straight guide rod, the angle between the side of the double cone and the straight guide rod is degrees, and a double cone is installed in the middle of the coarse nozzle head and the fine nozzle head, the double cone corresponds to the expanded hole through the straight guide rod, wherein the middle part of the double cone surface is a short disc structure, and the thickness of the short disc structure is greater than the diameter of the expanded hole, so that when the short disc structure in the middle part of the double cone surface is aligned with the expanded hole, the high-pressure cleaning medium delivered between the double cone and the blowing and cleaning head can be vertically flushed onto the inner wall of the austenitic stainless steel pipe perpendicular to the axis of the straight guide rod, thereby realizing short-distance direct flushing of stains on the inner wall of the austenitic stainless steel pipe, shortening the flushing distance, and improving the flushing effect.

[0013] Preferably, a cone is threadedly connected to one end of the straight guide rod away from the rinsing head, and the rinsing head is rotatably installed with the straight guide rod, so that one end of the rinsing head can rotate under the rotation limit action of the joint, and the other end can rotate with the straight guide rod under the limit installation of the straight guide rod, so that the rinsing head always rotates around the axis where the straight guide rod is located when it is in a rotating motion state.

[0014] Preferably, the driving assembly includes a ring mounting frame with a flange installed on the purge pipe, a movable ring is slidably installed on the purge pipe, and the movable ring is fitted with the purge pipe, and an electric telescopic rod is installed in a centrally symmetrical shape between the movable ring and the ring mounting frame, and the electric telescopic rod is bolted to the ring mounting frame, an external spring is fitted on the electric telescopic rod, one end of the external spring away from the electric telescopic rod is connected to the movable ring, and the movable ring is slidably installed with the purge pipe through the cooperation of the electric telescopic rod and the external spring.

[0015] Preferably, the side of the movable ring facing away from the ring mounting frame is connected with bendable guide rods in a circular array, and the bendable guide rods are connected to the cone through an inclined guide sleeve, and the bendable guide rods are telescopically installed with the inclined guide sleeve through the movable ring and the electric telescopic rod.

[0016] Preferably, the first sealing ring component is composed of four rubber sealing rings connected in a circular array to form a circular ring structure, and both ends of each rubber sealing ring are connected to a telescopic sleeve, the rubber sealing ring and the inner wall surface of the telescopic sleeve are provided with pleated portions, and rubber rings are installed on the inner wall surfaces of the rubber sealing ring and the telescopic sleeve at equal intervals, and the number of rubber rings is three, wherein the rubber sealing ring is fitted with a long sleeve, and the second sealing ring component is fitted with an internal tube.

[0017] Preferably, a hoop and a guide sleeve are embedded and installed in the middle of the circular ring structure composed of the rubber sealing ring and the telescopic sleeve, the hoop and the guide sleeve are slidably installed, and the guide sleeve is sleeved on the surface of the hoop, and the ends of two adjacent hoop are fixedly connected with electromagnets. When the electromagnet is energized, the electromagnets at the two adjacent ends of the hoop are of the same polarity and repel each other, and when the electromagnet is de-energized, the electromagnets at the two adjacent ends of the hoop are of different polarity and magnetically attracted to each other.

[0018] The present invention provides a purge device for an austenitic stainless steel pipeline, which has the following beneficial effects:

[0019] 1. The austenitic stainless steel pipe cleaning device utilizes a long sleeve to partially shield the spiral cavity opened on the surface of the coarse nozzle head, so that the cleaning medium can be transported along the spiral cavity under the wrapping and limiting guidance of the long sleeve. Based on the rotational connection between the cleaning head and the built-in tube through the joint, the high-pressure cleaning medium that is finally spirally transported in the narrow cavity can push the cleaning head to rotate on the joint around the axis where the straight guide rod is located, so that the cleaning medium ejected from the expanded hole can surround and cover the inner wall of the austenitic stainless steel pipe, thereby realizing the all-round flushing of the unit cross-section of the inner wall of the austenitic stainless steel pipe by the cleaning device. As the cleaning pipe continues to extend into the interior of the austenitic stainless steel pipe, the cleaning assembly is driven to flush one by one from top to bottom inside the austenitic stainless steel pipe.

[0020] Second, the austenitic stainless steel pipe blowing and cleaning device, through the bendable guide rod under the inclined guiding action of the inclined guide sleeve, drives the cone-linked straight guide rod to make reciprocating pulling and pulling motion inside the blowing and cleaning head along the central axis direction of the blowing and cleaning head, so that the straight guide rod performs periodic squeezing of the built-in spring inside the blowing and cleaning head, driving the double cone and the expansion holes opened on the surfaces of the coarse nozzle head and the fine nozzle head to make periodic staggered motions, so that the upper side, middle part and lower side of the double cone correspond to the expansion holes in sequence, so that the high-pressure cleaning medium delivered to between the double cone and the blowing and cleaning head is pushed and guided out of the expansion holes at different angles by using the surface of the double cone, thereby expanding the injection angle of the high-pressure cleaning medium ejected from the expansion holes, and expanding the injection range of the high-pressure cleaning medium ejected from the expansion holes. It is no longer a flushing operation performed at a single angle perpendicular to the inner wall of the austenitic stainless steel pipe, but can perform fan-shaped flushing in the form of an extended angle on other curved surfaces near the part at a cross section perpendicular to the central axis inside the austenitic stainless steel pipe.

[0021] 3. The austenitic stainless steel pipe purging device, through the expansion hole opened on the purging head, the double cone on the straight guide rod, the driven assembly performs reciprocating periodic motion along the inner axis direction of the purging head, combined with the purging head being driven by the spiral impact of another high-pressure cleaning medium, so that the purging device can perform all-round and multi-angle flushing functions on the inner wall of the austenitic stainless steel pipe inside the austenitic stainless steel pipe, can repeatedly flush the pipe wall at the same part in a fan-shaped scanning manner while the purging pipe is continuously extended into the austenitic stainless steel pipe, can keep the purging pipe driving the purging assembly, and extend it downward at a uniform speed inside the austenitic stainless steel pipe to flush the same part of the inner wall of the austenitic stainless steel pipe in a short time.

[0022] 4. The austenitic stainless steel pipe cleaning device avoids the drawback that traditional cleaning equipment can only perform one-way flushing on the same part. It can effectively flush and clean the stubborn stains on the inner wall, solve the hidden danger of stubborn stains remaining on the inner wall of the austenitic stainless steel pipe, and realize the efficient flushing function of the cleaning device on the inner wall of the austenitic stainless steel pipe.

[0023] 5. The austenitic stainless steel pipe cleaning device can improve the flexibility of the water column of the high-pressure cleaning medium sprayed from the expanded hole by utilizing the double cone to periodically reflect and guide the high-pressure cleaning medium sprayed from the expanded hole. Instead of a single high-pressure flushing of the pipe wall, it can form a scanning high-pressure flushing effect, which helps to improve the thorough flushing effect of the high-pressure cleaning medium sprayed from the expanded hole on the stubborn stains on the inner wall of the austenitic stainless steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the external structure of a purge device for an austenitic stainless steel pipeline according to the present invention;

[0025] Figure 2 It is a schematic diagram of the assembly structure of the drive assembly and the flaring bucket of the present invention;

[0026] Figure 3 It is a schematic diagram of the assembly structure of the second sealing ring and the purge pipe of the present invention;

[0027] Figure 4 It is a schematic diagram of the assembly structure of the expansion bucket and the purge pipe of the present invention;

[0028] Figure 5 It is a schematic diagram of the partial assembly structure of the purge assembly and the purge pipe of the present invention;

[0029] Figure 6 It is a schematic diagram of the internal structure of the purge assembly of the present invention;

[0030] Figure 7 It is a schematic diagram of the overall structure of the purge assembly of the present invention;

[0031] Figure 8 It is a schematic diagram of the assembly structure of the blowing and washing head and the straight guide rod of the present invention;

[0032] Fig. 9 It is a schematic diagram of the assembly structure of the bendable guide rod and the straight guide rod of the present invention;

[0033] Fig.10 It is a structural schematic diagram of the first sealing ring component of the present invention;

[0034] Fig.11 is an internal cross-sectional view of a first sealing ring member of the present invention;

[0035] Fig.12It is a schematic diagram of the assembly structure of the hoop and the guide sleeve of the present invention.

[0036] In the figure: 1. cleaning liquid storage tank; 2. high-pressure pump; 3. purge pipe; 4. purge assembly; 5. drive assembly; 6. flaring bucket; 7. first sealing ring; 8. second sealing ring; 9. ring frame; 41. built-in tube; 42. flat hole cavity; 43. inclined guide sleeve; 44. purge head; 45. joint; 46. long sleeve; 47. straight guide rod; 48. cone; 441. spiral cavity; 442. reaming; 443. boost valve; 444. built-in spring; 471. double cone; 51. ring mounting frame; 52. movable ring; 53. electric telescopic rod; 54. bendable guide rod; 71. rubber sealing ring; 72. telescopic sleeve; 73. pleated part; 74. rubber ring; 75. hoop; 76. guide sleeve; 77. electromagnet. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0038] The first embodiment, as Figures 1 to 12 As shown, the present invention provides a technical solution: a purge device for an austenitic stainless steel pipeline, comprising a cleaning liquid storage tank 1, a high-pressure pump 2 is fixedly installed at the bottom of the cleaning liquid storage tank 1, and a purge pipe 3 is connected to the output end of the high-pressure pump 2. The purge pipe 3 is used to transport the cleaning medium, and also includes:

[0039] The purge assembly 4 is used for spraying the cleaning medium. The purge assembly 4 has a flared bucket 6 mounted around it, and a ring frame 9 fixedly connected around the flared bucket 6. The ring frame 9 is made of plastic material as a whole. The ring frame 9 is mounted around the purge assembly 4 through the flared bucket 6. The purge pipe 3 is connected to the flared bucket 6. The purge assembly 4 is inserted into the purge pipe 3 through the flared bucket 6.

[0040] A driving assembly 5, used for adjusting the angle of the cleaning medium sprayed by the purge assembly 4;

[0041] A first sealing ring 7 is used to shield and seal the plug-in portion of the purge assembly 4 and the flaring bucket 6. A second sealing ring 8 is connected between the first sealing ring 7 and the flaring bucket 6. The second sealing ring 8 and the first sealing ring 7 are both installed around the purge assembly 4. The second sealing ring 8 has the same structure as the first sealing ring 7. The second sealing ring 8 is fitted and connected to the flaring bucket 6.

[0042] Among them, the purge assembly 4 includes an inner tube 41 inserted into the purge pipe 3, and a flat hole cavity 42 is opened in a circular array in the inner wall of the inner tube 41, and the flat hole cavity 42 is opened along the central axis direction of the inner tube 41 and penetrates the inner tube 41, and an inclined guide sleeve 43 is fixedly connected to the surface of the inner tube 41 and one end away from the first sealing ring 7, and the inclined guide sleeve 43 is connected to the inner tube 41 in a circular array, and the inclined guide sleeve 43 is installed through the purge pipe 3, and the inner tube 41 is positioned and installed with the purge pipe 3 through the inclined guide sleeve 43.

[0043] A purging head 44 is installed at one end of the built-in tube 41 away from the purging tube 3, and a joint 45 is rotatably connected to the end of the purging head 44 close to the built-in tube 41. The joint 45 is threadedly installed with the built-in tube 41, and a long sleeve 46 is installed around the surface of the joint 45. A guide cavity is opened in a circular array between the joint 45 and the long sleeve 46, and the guide cavity is opened along the central axis direction of the joint 45, and the guide cavity is connected to the flat hole cavity 42.

[0044] The cleaning head 44 as a whole is composed of two sections of a coarse nozzle head and a fine nozzle head with different diameters, wherein the coarse nozzle head is rotatably connected to the joint 45, and the long sleeve 46 is wrapped around the coarse nozzle head through the joint 45, and the coarse nozzle head is spirally opened with a spiral cavity 441 on the surface, and the spiral cavity 441 is connected to the guide cavity through the joint 45 and the long sleeve 46.

[0045] The middle part of the surface of the coarse nozzle head and the fine nozzle head are provided with expansion holes 442 in a circular array, and the central axis of the expansion hole 442 is perpendicular to the central axis of the blowing and cleaning head 44. A boosting valve 443 is installed inside the blowing and cleaning head 44, and the boosting valve 443 is installed inside the fine nozzle head to increase the pressure of the cleaning medium entering the fine nozzle head.

[0046] An internal spring 444 is installed inside the fine nozzle head and at one end away from the coarse nozzle head as a limit, a straight guide rod 47 is installed in the middle of the blowing and washing head 44, the straight guide rod 47 and the boost valve 443 are installed through, the straight guide rod 47 is elastically connected to the fine nozzle head through the internal spring 444, a double cone 471 is installed on the surface of the straight guide rod 47, the angle between the side of the double cone 471 and the straight guide rod 47 is 45 degrees, a double cone 471 is installed in the middle of the coarse nozzle head and the fine nozzle head, the double cone 471 corresponds to the expansion hole 442 through the straight guide rod 47, wherein the middle part of the surface of the double cone 471 is a short disc structure, and the thickness of the short disc structure is greater than the diameter of the expansion hole 442.

[0047] One end of the straight guide rod 47 away from the purging head 44 is threadedly connected with a cone 48 , and the purging head 44 and the straight guide rod 47 are rotatably mounted.

[0048] The driving assembly 5 includes a ring mounting frame 51 with a flange installed on the purge pipe 3, a movable ring 52 is slidably installed on the purge pipe 3, and the movable ring 52 is fitted with the purge pipe 3, and an electric telescopic rod 53 is installed in a centrally symmetrical shape between the movable ring 52 and the ring mounting frame 51, and the electric telescopic rod 53 is bolted to the ring mounting frame 51, an external spring is fitted on the electric telescopic rod 53, and one end of the external spring away from the electric telescopic rod 53 is connected to the movable ring 52, and the movable ring 52 is slidably installed with the purge pipe 3 through the cooperation of the electric telescopic rod 53 and the external spring.

[0049] The side of the movable ring 52 facing away from the ring mounting frame 51 is connected to a bendable guide rod 54 in a circular array, and the bendable guide rod 54 is connected to the cone 48 through the inclined guide sleeve 43. The bendable guide rod 54 is telescopically installed with the inclined guide sleeve 43 through the movable ring 52 and the electric telescopic rod 53.

[0050] The first sealing ring component 7 is composed of four rubber sealing rings 71 connected in a circular array to form a circular ring structure, and both ends of each rubber sealing ring 71 are connected to a telescopic sleeve 72, the inner wall surfaces of the rubber sealing ring 71 and the telescopic sleeve 72 are provided with pleated portions 73, and rubber rings 74 are installed at equal intervals on the inner wall surfaces of the rubber sealing ring 71 and the telescopic sleeve 72, and the number of rubber rings 74 is three, wherein the rubber sealing ring 71 is fitted with the long sleeve 46, and the second sealing ring component 8 is fitted with the built-in tube 41.

[0051] When in use, the austenitic stainless steel pipe is fixed vertically, then the purge tube 3 is held, and the purge assembly 4 is extended into the interior of the austenitic stainless steel pipe from the top thereof, and then the high-pressure pump 2 is activated to deliver the cleaning medium stored in the cleaning liquid storage tank 1 into the purge tube 3 at high pressure. Under the guidance of the purge tube 3 and the expansion bucket 6, the cleaning medium is delivered into the purge assembly 4, so that the cleaning medium is sprayed from the purge head 44 onto the inner wall of the austenitic stainless steel pipe to flush the inner wall of the austenitic stainless steel pipe.

[0052] During this period, the cleaning medium is divided into two streams, one stream enters the interior of the rinsing head 44 through the guidance of the built-in tube 41, the joint 45 and the rinsing head 44, and the other stream enters the spiral cavity 441 through the guidance of the flat hole cavity 42 and the guide cavity; wherein, the cleaning medium entering the interior of the rinsing head 44 is uniformly ejected from the expansion hole 442 under the shielding and guidance of the two double cones 471 in the middle parts of the coarse nozzle head and the fine nozzle head respectively; and the cleaning medium entering the spiral cavity 441 is partially shielded by the long sleeve 46 on the surface of the coarse nozzle head, so that the cleaning medium can be guided by the wrapping limit of the long sleeve 46, along Along with the spiral cavity 441, based on the rotational connection between the blowing head 44 and the built-in tube 41 through the joint 45, the high-pressure cleaning medium that is finally spirally conveyed in the narrow cavity can push the blowing head 44 to rotate on the joint 45 around the axis where the straight guide rod 47 is located, so that the cleaning medium ejected from the expansion hole 442 can surround and cover the inner wall of the austenitic stainless steel pipe, thereby realizing the all-round flushing of the unit cross-section of the inner wall of the austenitic stainless steel pipe by the blowing device. As the blowing tube 3 continues to extend into the interior of the austenitic stainless steel pipe, it drives the blowing component 4 to flush the inside of the austenitic stainless steel pipe from top to bottom one by one.

[0053] At the same time, the electric telescopic rod 53 is activated to perform periodic telescopic motion, driving the movable ring 52 to slide back and forth on the purging tube 3, so that the bendable guide rod 54 drives the cone 48 to link the straight guide rod 47 to perform reciprocating pulling and pulling motion inside the purging head 44 along the central axis direction of the purging head 44 under the inclined guidance of the inclined guide sleeve 43, so that the straight guide rod 47 performs periodic squeezing of the built-in spring 444 inside the purging head 44, driving the double cone 471 to perform periodic staggered motion with the expansion hole 442 opened on the surface of the coarse nozzle head and the fine nozzle head, so that the upper side, middle part and lower side of the double cone 471 are adjusted according to the rotation of the double cone 471. The second one corresponds to the reaming hole 442, so that the high-pressure cleaning medium delivered to the space between the double cone 471 and the blowing head 44 is pushed and guided out of the reaming hole 442 at different angles by utilizing the surface of the double cone 471, thereby expanding the injection angle of the high-pressure cleaning medium ejected from the reaming hole 442, and expanding the injection range of the high-pressure cleaning medium ejected from the reaming hole 442. The flushing operation is no longer carried out at a single angle perpendicular to the inner wall of the austenitic stainless steel pipe, and other curved surfaces near the part can be flushed in a fan-shaped manner with an expanded angle at a cross section perpendicular to the central axis of the austenitic stainless steel pipe.

[0054] Through the expansion hole 442 opened on the blowing and cleaning head 44, the double cone 471 on the straight guide rod 47, the driven component 5 performs reciprocating periodic motion along the central axis direction of the blowing and cleaning head 44, and the blowing and cleaning head 44 is driven by the spiral impact of another high-pressure cleaning medium, so that the blowing and cleaning device can perform all-round and multi-angle flushing functions on the inner wall of the austenitic stainless steel pipe inside the austenitic stainless steel pipe, and can repeatedly flush the pipe wall of the same part in a fan-shaped scanning manner while the blowing and cleaning pipe 3 is continuously extended into the austenitic stainless steel pipe. While the blowing and cleaning component 4 is kept driven downward at a uniform speed inside the austenitic stainless steel pipe, the same part of the inner wall of the austenitic stainless steel pipe can be repeatedly flushed in a short time, avoiding the disadvantage that traditional blowing and cleaning equipment can only perform one-way flushing on the same part, and can effectively flush and clean the stubborn stains in the inner wall, solve the hidden danger of stubborn stains remaining on the inner wall of the austenitic stainless steel pipe, and realize the efficient flushing function of the blowing and cleaning device on the inner wall of the austenitic stainless steel pipe.

[0055] In addition, by utilizing the double cone 471 to periodically reflect and guide the high-pressure cleaning medium ejected from the expansion hole 442, the flexibility of the water column of the high-pressure cleaning medium ejected from the expansion hole 442 can be improved. Instead of a single high-pressure flushing of the pipe wall, a scanning high-pressure flushing effect can be formed, thereby assisting in improving the thorough flushing effect of the high-pressure cleaning medium ejected from the expansion hole 442 on the stubborn stains on the inner wall of the austenitic stainless steel pipe.

[0056] After the purge tube 3 with the purge assembly 4 is extended into the bottom of the austenitic stainless steel pipe and the stains on the inner wall of the austenitic stainless steel pipe are flushed once, the driving assembly 5 can be activated to drive the double cone 471 to move inside the purge head 44 and adjust it to: the 45-degree angle side of the double cone 471 away from the purge tube 3 corresponds to the expansion hole 442, that is, the high-pressure cleaning medium blocked and guided by the double cone 471 at this time, is ejected through the expansion hole 442 in an umbrella-shaped flushing shape with the opening facing the bottom of the austenitic stainless steel pipe. At this time, the flow direction of the high-pressure cleaning medium injected into the inside of the austenitic stainless steel pipe follows the extension of the purge tube 3 and flows downward in unison, so that the stubborn stains remaining on the inner wall of the austenitic stainless steel pipe can be flushed out from the bottom of the austenitic stainless steel pipe together with the high-pressure cleaning medium under the second uniform direction flushing, thereby ensuring the cleanliness of the inside of the austenitic stainless steel pipe.

[0057] During use, the ring frame 9 installed on the expansion bucket 6 serves as a protective structure surrounding the purge component 4, and the purge component 4 is isolated from the inner wall of the austenitic stainless steel pipe to prevent the purge component 4 from being accidentally scratched by the purge pipe 3 when being uniformly transported to the inside of the austenitic stainless steel pipe. At the same time, the purge component 4 is also isolated and protected inside the ring frame 9 to avoid direct contact between the stains on the inner wall of the austenitic stainless steel pipe and the purge component 4. At the same time, when the purge component 4 is released at a uniform speed from top to bottom in the vertical direction inside the austenitic stainless steel pipe, the purge component 4 can be close to the central axis of the austenitic stainless steel pipe under the limiting effect of the ring frame 9 and the action of gravity, so as to ensure the purge effect of the purge device on the stains inside the austenitic stainless steel pipe.

[0058] By connecting the first sealing ring 7 to the flaring bucket 6 via the second sealing ring 8, the first sealing ring 7 and the second sealing ring 8 can be used together to surround, wrap and restrain the surface of the purge component 4 to block and intercept the splashed dirt, prevent the dirt from entering the interface of the purge pipe 3 through the gap between the purge component 4 and the flaring bucket 6, avoid reverse contamination of the internal structure of the flaring bucket 6 and the purge pipe 3 by the dirt, and avoid the accumulation of dirt on the purge pipe 3 and the purge component 4.

[0059] By allowing the high-pressure cleaning medium to flow in a spiral along the spiral cavity 441 on the surface of the blowing and cleaning head 44, not only can the high-pressure cleaning medium guided by the spiral acceleration be relied upon to realize the rotational movement of the blowing and cleaning head 44 at the joint 45, but the high-pressure cleaning medium can also be utilized to flow in all directions on the surface of the blowing and cleaning head 44. Without interfering with the high-pressure cleaning medium ejected from the expansion hole 442, the residual dirt on the surface of the blowing and cleaning head 44 can be flushed in real time, thereby realizing the self-cleaning effect on the surface of the blowing and cleaning head 44 and preventing the dirt flushed from the inside of the austenitic stainless steel pipe from accumulating or clogging in the expansion hole 442 or the spiral cavity 441, thereby ensuring the normal use of the two structures and the normal use of the flushing function of the blowing and cleaning device.

[0060] Combined with the description of the above usage process, it can be seen that through the spraying of high-pressure cleaning medium, the inner wall of the pipeline can be fully covered to ensure the thoroughness of the cleaning; the cleaning medium can form a spiral spray effect in the pipeline, enhance the scouring force of the cleaning medium, and improve the cleaning efficiency; it can be adapted to austenitic stainless steel pipelines of different diameters and has a wide range of applicability; the blowing and cleaning device can efficiently and reliably clean the pipeline to ensure the transportation efficiency and service life of the pipeline.

[0061] The second embodiment is based on the first embodiment. Figures 10 to 12As shown, a hoop 75 and a guide sleeve 76 are embedded in the middle of the circular ring structure composed of the rubber sealing ring 71 and the telescopic sleeve 72. The hoop 75 and the guide sleeve 76 are slidably installed, and the guide sleeve 76 is sleeved on the surface of the hoop 75. The ends of two adjacent hoops 75 are fixedly connected with electromagnets 77. When the electromagnets 77 are energized, the electromagnets 77 at the ends of the two adjacent hoops 75 are of the same polarity and repel each other. When the electromagnets 77 are de-energized, the electromagnets 77 at the ends of the two adjacent hoops 75 are of different polarity and magnetically attract each other.

[0062] When in use, during the specific use period, the first sealing ring member 7 can be powered off by turning off the electromagnet 77 wrapped around the rubber sealing ring 71 and the telescopic sleeve 72, and utilizing the combined force of the electromagnets 77 at the ends of two adjacent hoop rings 75 being mutually attracted by the opposite poles, so as to promote the mutual magnetic attraction and contraction between the four hoop rings 75, thereby tightening the circle structure composed of the four hoop rings 75 embedded in the rubber sealing ring 71 and the telescopic sleeve 72, and reducing the diameter of the circle, thereby driving the rubber sealing ring 71 and the telescopic sleeve 72 that can shrink and deform. The telescopic sleeve 72 is tightly wrapped around the purge component 4, fitting and tightening the gap between the purge component 4 and the flaring bucket 6 and between the purge component 4 and the purge tube 3, forming a surrounding sealing effect, thereby blocking and intercepting dirt. At the same time, by energizing the electromagnet 77, the circle structure formed by the four hoops 75 can be expanded, so that the first sealing ring 7 and the second sealing ring 8 can automatically release the sealing fit on the surface of the purge component 4, so that the purge component 4 can be removed from the inside of the purge tube 3 for separate maintenance, cleaning and replacement.

[0063] In addition, when the outer diameter of the austenitic stainless steel pipe to be purged is relatively small, and the height of the austenitic stainless steel pipe is relatively small; specifically, when the outer diameter of the austenitic stainless steel pipe is smaller than the inner diameter of the ring frame 9, and the inner diameter of the austenitic stainless steel pipe is larger than the outer diameter of the purging assembly 4, the first sealing ring 7 and the second sealing ring 8 can be used as a connecting structure sleeved on the end of the austenitic stainless steel pipe to dock the purging assembly 4 on the top of the austenitic stainless steel pipe, thereby reflecting the second usage of the purging device: that is, the top-to-bottom top-down flushing function of the top sealed docking type, which can intercept and block the dust, smoke, water vapor, and even other splashing foreign matter generated during the flushing process inside the austenitic stainless steel pipe by sealing the top of the austenitic stainless steel pipe, and use the austenitic stainless steel pipe itself to form a semi-sealed structure with only one bottom outlet, ensuring that there will be no pollution risks to the surrounding environment and equipment during the flushing of the austenitic stainless steel pipe.

[0064] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A purge device for an austenitic stainless steel pipeline, comprising a cleaning liquid storage tank (1), a high-pressure pump (2) being fixedly mounted at the bottom of the cleaning liquid storage tank (1), characterized in that: The output end of the high-pressure pump (2) is connected to a purge pipe (3), the purge pipe (3) being used to transport a cleaning medium, and further comprising: A purge assembly (4) for spraying a cleaning medium, the purge assembly (4) comprising a flared bucket (6) mounted around the flared bucket (6), and an annular frame (9) fixedly connected around the flared bucket (6), the annular frame (9) being made entirely of a plastic material, and the annular frame (9) being mounted around the purge assembly (4) via the flared bucket (6), the purge pipe (3) being connected to the flared bucket (6), and the purge assembly (4) being plugged into the purge pipe (3) via the flared bucket (6); A drive assembly (5) for adjusting the angle of the cleaning medium sprayed by the purge assembly (4); A first sealing ring (7) is used to shield and seal the plug-in portion between the purge assembly (4) and the flaring bucket (6); a second sealing ring (8) is connected between the first sealing ring (7) and the flaring bucket (6); the second sealing ring (8) and the first sealing ring (7) are both mounted around the purge assembly (4); the second sealing ring (8) and the first sealing ring (7) have the same structure; the second sealing ring (8) is fittedly connected to the flaring bucket (6); The purge assembly (4) comprises an inner tube (41) inserted into the purge tube (3), the inner wall of the inner tube (41) is provided with a flat hole cavity (42) in the form of a circular array, and the flat hole cavity (42) is opened along the central axis direction of the inner tube (41) and penetrates the inner tube (41), an inclined guide sleeve (43) is fixedly connected to the surface of the inner tube (41) and one end away from the first sealing ring (7), and the inclined guide sleeve (43) is connected to the inner tube (41) in the form of a circular array, the inclined guide sleeve (43) and the purge tube (3) are penetrated and installed, and the inner tube (41) and the purge tube (3) are positioned and installed through the inclined guide sleeve (43); A purging head (44) is installed at one end of the built-in tube (41) away from the purging tube (3); a joint (45) is rotatably connected to one end of the purging head (44) close to the built-in tube (41); the joint (45) is threadedly mounted on the built-in tube (41); a long sleeve (46) is mounted around the surface of the joint (45); a guide cavity is provided between the joint (45) and the long sleeve (46) in a circular array; the guide cavity is provided along the central axis of the joint (45); and the guide cavity is communicated with the flat hole cavity (42); The rinsing head (44) is formed by connecting two sections of a coarse nozzle head and a fine nozzle head with different diameters, wherein the coarse nozzle head is rotatably connected to a joint (45), and the long sleeve (46) surrounds and wraps around the coarse nozzle head through the joint (45), and a spiral cavity (441) is formed on the surface of the coarse nozzle head in a spiral shape, and the spiral cavity (441) is connected to the guide cavity through the joint (45) and the long sleeve (46); The surfaces of the coarse nozzle head and the fine nozzle head are both provided with expansion holes (442) in a circular array in the middle, and the central axis of the expansion holes (442) is perpendicular to the central axis of the blowing and cleaning head (44); a booster valve (443) is installed inside the blowing and cleaning head (44), and the booster valve (443) is installed inside the fine nozzle head for boosting the pressure of the cleaning medium entering the fine nozzle head; An internal spring (444) is installed in the middle of the fine nozzle head and at one end away from the coarse nozzle head; a straight guide rod (47) is installed in the middle of the blowing and washing head (44); the straight guide rod (47) and the boost valve (443) are installed through each other; the straight guide rod (47) is elastically connected to the fine nozzle head via the internal spring (444); a double cone (471) is installed on the surface of the straight guide rod (47); the angle between the side surface of the double cone (471) and the straight guide rod (47) is 45 degrees; a double cone (471) is installed in the middle of the coarse nozzle head and the fine nozzle head; the double cone (471) corresponds to the expansion hole (442) via the straight guide rod (47); the middle of the surface of the double cone (471) is a short disc structure; and the thickness of the short disc structure is greater than the diameter of the expansion hole (442); One end of the straight guide rod (47) away from the purging head (44) is threadedly connected with a cone (48), and the purging head (44) and the straight guide rod (47) are rotatably mounted; The driving assembly (5) comprises a ring mounting frame (51) having a flange mounted on the purge pipe (3); a movable ring (52) is slidably mounted on the purge pipe (3); the movable ring (52) is sleeved on the purge pipe (3); an electric telescopic rod (53) is centrally symmetrically mounted between the movable ring (52) and the ring mounting frame (51); the electric telescopic rod (53) is bolted to the ring mounting frame (51); an external spring is sleeved on the electric telescopic rod (53); one end of the external spring away from the electric telescopic rod (53) is connected to the movable ring (52); the movable ring (52) is slidably mounted on the purge pipe (3) through the cooperation of the electric telescopic rod (53) and the external spring; A side of the movable ring (52) facing away from the ring mounting frame (51) is connected to a bendable guide rod (54) in a circular array, and the bendable guide rod (54) is connected to the cone (48) via an inclined guide sleeve (43). The bendable guide rod (54) is telescopically mounted with the inclined guide sleeve (43) through the movable ring (52) and the electric telescopic rod (53).

2. The austenitic stainless steel pipe purging device according to claim 1, characterized in that: The first sealing ring component (7) is composed of four rubber sealing rings (71) connected in a circular array to form a circular ring structure, and both ends of each rubber sealing ring (71) are connected to a telescopic sleeve (72), the inner wall surfaces of the rubber sealing ring (71) and the telescopic sleeve (72) are both provided with folded portions (73), and rubber rings (74) are installed at equal intervals on the inner wall surfaces of the rubber sealing ring (71) and the telescopic sleeve (72), and the number of rubber rings (74) is three, wherein the rubber sealing ring (71) is fitted with the long sleeve (46), and the second sealing ring component (8) is fitted with the built-in tube (41).

3. The austenitic stainless steel pipeline purging device according to claim 2, characterized in that: A hoop (75) and a guide sleeve (76) are embedded and installed in the middle of the circular ring structure composed of the rubber sealing ring (71) and the telescopic sleeve (72). The hoop (75) and the guide sleeve (76) are slidably installed, and the guide sleeve (76) is sleeved on the surface of the hoop (75). The ends of two adjacent hoops (75) are fixedly connected with electromagnets (77). When the electromagnets (77) are energized, the electromagnets (77) at the ends of the two adjacent hoops (75) are of the same polarity and repel each other. When the electromagnets (77) are de-energized, the electromagnets (77) at the ends of the two adjacent hoops (75) are of different polarity and magnetically attract each other.

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