CN111853420A - Water delivery pipeline for industrial wastewater treatment - Google Patents

Water delivery pipeline for industrial wastewater treatment Download PDF

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Publication number
CN111853420A
CN111853420A CN202010727320.2A CN202010727320A CN111853420A CN 111853420 A CN111853420 A CN 111853420A CN 202010727320 A CN202010727320 A CN 202010727320A CN 111853420 A CN111853420 A CN 111853420A
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CN
China
Prior art keywords
plate
frame
water pipe
wastewater treatment
block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010727320.2A
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Chinese (zh)
Inventor
王云力
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Decheng Electromechanical Equipment Co ltd
Original Assignee
Guangzhou Decheng Electromechanical Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Decheng Electromechanical Equipment Co ltd filed Critical Guangzhou Decheng Electromechanical Equipment Co ltd
Priority to CN202010727320.2A priority Critical patent/CN111853420A/en
Publication of CN111853420A publication Critical patent/CN111853420A/en
Withdrawn legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/24Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L43/00Bends; Siphons

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses a water pipe for industrial wastewater treatment, which structurally comprises a connector, a water pipe and an engagement hole, wherein the engagement hole and the connector are of an integrated structure, the water pipe is welded with the connector, when the waste water is flushed into the pipe body again, the buoyancy block can push the extension rod to extend out along the guide frame by the buoyancy generated to the buoyancy block by entering the inside of the corner block, thereby leading the outer push plate to extend out along the two baffles under the pushing of the outer push plate, further pushing out the concentrated iron leftover materials in the baffles, effectively avoiding the situation that the iron leftover materials in the wastewater are concentrated at the corner blocks, the scrap iron in the wastewater rushing into the corner block can be intercepted through the stop strip on the opening plate, thereby make the inside waste water of corner piece of discharging into can not contain iron fillings, the effectual iron fillings of having avoided in the waste water rush into the inside condition that can cause the damage to the inside part of corner piece.

Description

Water delivery pipeline for industrial wastewater treatment
Technical Field
The invention relates to the field of industrial wastewater treatment, in particular to a water conveying pipeline for industrial wastewater treatment.
Background
The water pipe for industrial wastewater treatment is mainly used for conveying wastewater generated in industry, can convey industrial wastewater to a designated area through the water pipe for industrial wastewater treatment for wastewater treatment, and is widely applied to the industrial production industry, and based on the above description, the inventor finds that the existing water pipe for industrial wastewater treatment mainly has the following defects, for example:
because the less iron leftover bits of ironmaking factory volume can follow waste water and discharge inside the water pipe for industrial waste water treatment when water washes the cooling to ironware surface, and when waste water discharged to ending soon, the iron leftover bits in the waste water then can stop the right angle of water pipe for industrial waste water treatment and rise the corner because of waste water power is not enough, long-time accumulation and oxidation rust then can make the iron leftover bits adhere and form the great iron plate of volume together, thereby can handle the condition that causes the jam to the water pipe for industrial waste water.
Disclosure of Invention
In view of the above problems, the present invention provides a water pipe for industrial wastewater treatment.
In order to achieve the purpose, the invention is realized by the following technical scheme: a water pipe for industrial wastewater disposal structurally comprises a connector, a water pipe and an engagement hole, wherein the engagement hole and the connector are of an integrated structure, and the water pipe is welded with the connector; the water pipe comprises a pipe body, a corner block and a baffle, wherein the corner block is fixedly connected with the pipe body in an embedded mode, and the baffle and the corner block are of an integrated structure.
As a further optimization of the invention, the corner block comprises a frame body, a guide frame, a buoyancy block, an extension rod, a blocking mechanism and an outer push plate, wherein the guide frame is fixedly embedded in the frame body, the buoyancy block and the extension rod are of an integrated structure, the extension rod is in clearance fit with the guide frame, the blocking mechanism is connected with the frame body, the outer push plate is fixedly embedded in the front end position of the extension rod, and the buoyancy block is made of foamed plastic with certain buoyancy.
As a further optimization of the invention, the outer pushing plate comprises three swinging plates, a boosting frame, an upper connecting plate, elastic strips and a lower connecting plate, wherein the swinging plates are hinged with the upper connecting plate, the boosting frame is in clearance fit with the upper connecting plate, the elastic strips are arranged between the boosting frame and the lower connecting plate, the lower connecting plate and the upper connecting plate are of an integrated structure, and the three swinging plates are uniformly distributed on the upper connecting plate in parallel.
As a further optimization of the invention, the swing plate comprises a deformation surface, a pushing block, inner swing rods, a reset sheet and an outer frame, wherein the deformation surface and the outer frame are of an integrated structure, the pushing block is fixedly embedded with the inner swing rods, the inner swing rods are hinged with the outer frame, the reset sheet is arranged between the two inner swing rods, and the deformation surface is made of spring steel with strong elasticity.
As a further optimization of the invention, the blocking mechanism comprises a frame, three retractable strips and three opening plates, wherein one ends of the retractable strips are fixedly embedded in the frame, the other ends of the retractable strips are connected with the opening plates, and the three opening plates are uniformly and symmetrically distributed in the frame.
As a further optimization of the invention, the open-close plate comprises a plate body, a combination plate and stop strips, wherein the combination plate and the plate body are of an integrated structure, the stop strips are fixedly embedded with the combination plate, more than ten stop strips are arranged, and the stop strips are distributed in parallel at the bottom of the combination plate.
As a further optimization of the invention, the plate body comprises a plate surface, elastic strips, impact blocks and stress plates, wherein the elastic strips are fixedly connected with the plate surface, the impact blocks are connected with the elastic strips, the stress plates and the plate surface are of an integrated structure, and the five impact blocks are arranged and are distributed in parallel inside the plate surface through the cooperation of the elastic strips.
The invention has the following beneficial effects:
1. can concentrate the collection to the iron leftover bits that power is not enough to stop in turning piece department through the baffle on the raceway, and when the body is inside when dashing into waste water once, through getting into the inside buoyancy to waste water to the buoyancy that the buoyancy piece produced of turning piece, can make buoyancy piece promote the extension bar and stretch out along the guide frame, thereby make the push pedal can stretch out along two baffles under the promotion of push pedal outward, thereby can release the inside iron leftover bits of baffle of concentrating, the effectual condition of iron leftover bits that has avoided in the waste water can concentrate on turning piece department.
2. Can intercept the iron fillings that dash into in the inside waste water of corner piece through the strip that blocks on the open-close plate to make the inside waste water of entering corner piece can not contain iron fillings, the effectual iron fillings of having avoided in the waste water dash into inside the part that can cause the damage to the inside part of corner piece.
Drawings
Fig. 1 is a schematic structural view of a water pipe for industrial wastewater treatment according to the present invention.
Fig. 2 is a schematic structural view of the water pipe of the present invention in a side-view half-section.
FIG. 3 is a schematic side view of a corner block according to the present invention.
FIG. 4 is a schematic structural diagram of a side view section of the push plate according to the present invention.
FIG. 5 is a side view of the swing plate of the present invention.
FIG. 6 is a schematic side view of a blocking mechanism according to the present invention.
FIG. 7 is a schematic side view of a plywood of the present invention.
Fig. 8 is a schematic structural diagram of a side view section of the plate body according to the present invention.
In the figure: the device comprises a connector-1, a water pipe-2, a joint hole-3, a pipe body-21, a corner block-22, a baffle-23, a frame body-a 1, a guide frame-a 2, a buoyancy block-a 3, an extension rod-a 4, a blocking mechanism-a 5, an outer push plate-a 6, a swing plate-a 61, a boosting frame-a 62, an upper connecting plate-a 63, an elastic strip-a 64, a lower connecting plate-a 65, a deforming surface-b 1, a pushing block-b 2, an inner swing rod-b 3, a reset sheet-b 4, an outer frame-b 5, a frame-c 1, an expansion strip-c 2, an opening plate-c 3, a plate body-c 31, a combination plate-c 32, a blocking strip-c 33, a plate surface-d 1, an elastic strip-d 2, an impact block-d 3 and a stress plate-d 4.
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.
Example 1
As shown in fig. 1-5:
the invention provides a water pipe for industrial wastewater disposal, which structurally comprises a connector 1, a water pipe 2 and an engagement hole 3, wherein the engagement hole 3 and the connector 1 are of an integrated structure, and the water pipe 2 is welded with the connector 1; the water pipe 2 comprises a pipe body 21, corner blocks 22 and a baffle 23, wherein the corner blocks 22 are fixedly embedded in the pipe body 21, and the baffle 23 and the corner blocks 22 are of an integrated structure.
The corner block 22 comprises a frame body a1, a guide frame a2, a buoyancy block a3, an extension rod a4, a blocking mechanism a5 and an outer push plate a6, wherein the guide frame a2 is fixedly connected with the frame body a1, the buoyancy block a3 and the extension rod a4 are of an integrated structure, the extension rod a4 is in clearance fit with the guide frame a2, the blocking mechanism a5 is connected with the frame body a1, the outer push plate a6 is fixedly embedded at the front end position of the extension rod a4, the buoyancy block a3 is made of foam plastic with certain buoyancy, and the buoyancy block a3 can push the outer push plate a6 connected with the extension rod a4 to extend outwards through buoyancy generated by waste water entering the frame body a1 to the buoyancy block a3, so that iron leftover materials clamped between objects can be pushed out.
The pushing plate a6 comprises a swinging plate a61, a boosting frame a62, an upper connecting plate a63, an elastic strip a64 and a lower connecting plate a65, wherein the swinging plate a61 is hinged to the upper connecting plate a63, the boosting frame a62 is in clearance fit with the upper connecting plate a63, the elastic strip a64 is installed between the boosting frame a62 and the lower connecting plate a65, the lower connecting plate a65 and the upper connecting plate a63 are of an integrated structure, three swinging plates a61 are arranged and uniformly distributed on the upper connecting plate a63 in parallel, and the boosting frame a62 can push the swinging plate a61 to swing up and down along the upper connecting plate a63 under the cooperation of the elastic strip a64 through the inertia force generated by pushing an object, so that the swinging plate a61 can push iron leftover materials attached to the surface of the upper connecting plate a63 down.
The swing plate a61 comprises a deformation surface b1, a pushing block b2, an inner swing rod b3, a reset sheet b4 and an outer frame b5, the deformation surface b1 and the outer frame b5 are of an integrated structure, the pushing block b2 is fixedly connected with an inner swing rod b3, the inner swing rod b3 is hinged to the outer frame b5, the reset sheet b4 is installed between the two inner swing rods b3, the deformation surface b1 is made of spring steel with strong elasticity, the inner swing rod b3 can swing inwards along the outer frame b5 through the throwing force generated by the mechanism during swing, so that the pushing block b2 can support the outer surface of the deformation surface b1 to be deformed, and therefore the elastic force generated by the extremely fine deformation surface b1 during reset can elastically remove iron leftover materials on the outer surface of the deformation surface b 1.
The detailed use method and action of the embodiment are as follows:
in the invention, because the iron leftover materials with small volume in the iron manufacturing plant are discharged into the water pipe 2 along with the waste water when the surface of the iron product is washed and cooled by the water, and when the waste water is discharged to the end, the iron leftover materials in the waste water can stay at the right-angle rising corner of the water pipe 2 due to insufficient power of the waste water, and the iron leftover materials can be adhered together to form iron blocks with large volume after being accumulated for a long time and oxidized and rusted, thereby causing the blockage of the water pipe 2, the problems can be effectively solved through the matching of the corner blocks 22 and the baffle plates 23 on the water pipe 2, the baffle plates 23 on the water pipe 2 can intensively collect the iron leftover materials staying at the corner blocks 22 due to insufficient power, and when the waste water is flushed into the pipe body 21 for the second time, the buoyancy generated by the waste water entering the corner blocks 22 to the buoyancy blocks a3 can enable the buoyancy blocks a3 to push the extension rods a4 to extend along the guide frames a2, therefore, the outer push plate a6 can extend out along the two baffle plates 23 under the pushing of the outer push plate a6, so that concentrated iron scraps in the baffle plates 23 can be pushed out, the condition that iron scraps in waste water are concentrated at the corner blocks 22 is effectively avoided, the inertia force generated by pushing out the outer push plate a6 can push the swing plate a61 to swing up and down along the upper connecting plate a63 under the matching of the elastic strip a64 by the aid of the push frame a62 on the outer push plate a6, so that the swing plate a61 can push down the iron scraps attached to the surface of the upper connecting plate a63, the condition that the iron scraps are attached to the outer push plate a6 due to moisture is effectively avoided, the inner swing rod b3 on the outer push plate a6 can swing inwards along b5 by the swing force generated when the swing plate a 48 swings, so that the push block b2 can support the outer surface b1 to be deformed, and the reset piece b 638 can stop swinging when the outer swing plate 68692 a is in the outer frame 3992, pendulum rod b3 resets in promoting to make deformation face b1 can reset, so make deformation face b1 the elasticity that produces when resetting, can remove the superfine iron leftover bits of deformation face b1 surface, the effectual condition of having avoided superfine iron leftover bits to be difficult to be pushed away by swing board a 61.
Example 2
As shown in fig. 6-8:
the blocking mechanism a5 comprises a frame c1, a telescopic bar c2 and an opening plate c3, one end of the telescopic bar c2 is fixedly connected with the frame c1 in an embedded mode, the other end of the telescopic bar c2 is connected with the opening plate c3, the number of the opening plate c3 is three, the opening plate c1 is evenly and symmetrically distributed in the frame c1, and the opening plate c3 can be inwards contracted under the matching of the telescopic bar c2 through the thrust of waste water on the opening plate c3, so that the waste water can pass through the frame c 1.
Wherein, open plate c3 includes plate body c31, joint plate c32, blocks strip c33, joint plate c32 and plate body c31 are the integral structure, block strip c33 and be connected with joint plate c32 embedded solid, block strip c33 and be equipped with more than ten, and be parallel distribution in joint plate c 32's bottom, can block the iron leftover bits in the waste water through the oblique strip c33 that blocks.
The plate body c31 comprises a plate surface d1, elastic strips d2, an impact block d3 and a stress plate d4, the elastic strips d2 are fixedly connected with the plate surface d1, the impact block d3 is connected with the elastic strips d2, the stress plate d4 and the plate surface d1 are of an integrated structure, five impact blocks d3 are arranged, the impact blocks d2 are matched with the elastic strips d2 and are distributed in the plate surface d1 in parallel, and the impact block d3 can impact the inner side of the stress plate d4 under the driving of the elastic strips d2 through the inertial force generated by object shrinkage, so that the stress plate d4 can shake off iron leftover materials between objects.
The detailed use method and action of the embodiment are as follows:
in the invention, because the inside of the corner block 22 is open to the outside, so that when the waste water rushes into the corner block 22, the waste water can bring the iron leftover materials in the waste water into the position inside the corner block 22, so that the iron leftover materials entering the inside of the corner block 22 can damage parts inside the corner block 22, the problems are effectively solved through the frame c1 on the blocking mechanism a5, the waste water rushing into the inside of the corner block 22 can generate thrust on the open plate c3 on the blocking mechanism a5, the open plate c3 can be contracted under the matching of the telescopic strip c2, so that the waste water can enter the inside of the corner block 22 through the gap between the two open plates c3, and the scrap iron in the waste water rushing into the inside of the corner block 22 can be intercepted through the blocking strip c33 on the open plate c3, so that the waste water discharged into the inside of the corner block 22 cannot contain scrap iron, and the scrap iron in the waste water which rushes into the inside the corner block 22 can be effectively avoided Under the condition of damage, the inertia force generated by the contraction of the opening plate c3 can enable the elastic strip d2 on the plate body c31 to repeatedly impact the inner wall of the stress plate d4 under the matching of the impact block d3, so that the stress plate d4 can shake down iron scraps between the barrier strips c33, and the condition that a large amount of iron scraps are accumulated between the barrier strips c33 is effectively avoided.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.

Claims (7)

1. The utility model provides an industrial waste water deals with uses conduit, its structure includes connector (1), raceway (2), connection hole (3) and connector (1) structure as an organic whole, its characterized in that: the water delivery pipe (2) is welded with the connector (1);
the water pipe (2) comprises a pipe body (21), corner blocks (22) and a baffle (23), the corner blocks (22) are fixedly embedded in the pipe body (21), and the baffle (23) and the corner blocks (22) are of an integrated structure.
2. The water pipe for industrial wastewater treatment according to claim 1, wherein: the corner block (22) comprises a frame body (a 1), a guide frame (a 2), a buoyancy block (a 3), an extension rod (a 4), a blocking mechanism (a 5) and an outer push plate (a 6), wherein the guide frame (a 2) is fixedly connected with the frame body (a 1), the buoyancy block (a 3) and the extension rod (a 4) are of an integrated structure, the extension rod (a 4) is in clearance fit with the guide frame (a 2), the blocking mechanism (a 5) is connected with the frame body (a 1), and the outer push plate (a 6) is fixedly embedded at the front end of the extension rod (a 4).
3. The water pipe for industrial wastewater treatment according to claim 2, characterized in that: outer push pedal (a 6) is including swing board (a 61), boosting frame (a 62), upper connecting plate (a 63), elastic strip (a 64), lower connecting plate (a 65), swing board (a 61) and upper connecting plate (a 63) hinged joint, boosting frame (a 62) and upper connecting plate (a 63) clearance fit, elastic strip (a 64) are installed and are being boosted between frame (a 62) and lower connecting plate (a 65), lower connecting plate (a 65) and upper connecting plate (a 63) are the integrated structure.
4. The water pipe for industrial wastewater treatment according to claim 3, wherein: swing board (a 61) include deformation face (b 1), promote piece (b 2), interior pendulum rod (b 3), reset piece (b 4), frame (b 5), deformation face (b 1) and frame (b 5) structure as an organic whole, it is connected with interior pendulum rod (b 3) to promote piece (b 2) to inlay to be fixed, interior pendulum rod (b 3) and frame (b 5) hinged joint, reset piece (b 4) is installed between two interior pendulum rods (b 3).
5. The water pipe for industrial wastewater treatment according to claim 2, characterized in that: the blocking mechanism (a 5) comprises a frame (c 1), a telescopic bar (c 2) and an opening plate (c 3), wherein one end of the telescopic bar (c 2) is fixedly connected with the frame (c 1), and the other end of the telescopic bar (c 2) is connected with the opening plate (c 3).
6. The water pipe for industrial wastewater treatment according to claim 5, wherein: open-close plate (c 3) is including plate body (c 31), combination board (c 32), stop strip (c 33), combination board (c 32) and plate body (c 31) structure as an organic whole, stop strip (c 33) and combination board (c 32) embedded solid be connected.
7. The water pipe for industrial wastewater treatment according to claim 6, wherein: the plate body (c 31) comprises a plate surface (d 1), elastic strips (d 2), an impact block (d 3) and a stress plate (d 4), wherein the elastic strips (d 2) are fixedly embedded in the plate surface (d 1), the impact block (d 3) is connected with the elastic strips (d 2), and the stress plate (d 4) and the plate surface (d 1) are of an integrated structure.
CN202010727320.2A 2020-07-27 2020-07-27 Water delivery pipeline for industrial wastewater treatment Withdrawn CN111853420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010727320.2A CN111853420A (en) 2020-07-27 2020-07-27 Water delivery pipeline for industrial wastewater treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010727320.2A CN111853420A (en) 2020-07-27 2020-07-27 Water delivery pipeline for industrial wastewater treatment

Publications (1)

Publication Number Publication Date
CN111853420A true CN111853420A (en) 2020-10-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113653880A (en) * 2021-07-14 2021-11-16 张子路 Petrochemical industry pipeline

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Publication number Priority date Publication date Assignee Title
US20040040597A1 (en) * 2002-09-04 2004-03-04 Dara Cheng Transparent pipe trap with means of enhancing the biodegradation of sink effluents
WO2008056387A1 (en) * 2006-11-09 2008-05-15 Mazzini Service Srl System and device for detecting the blockage of pipes particularly for siphons of discharge ducts.
KR20080003788U (en) * 2007-03-06 2008-09-10 케이엠씨 주식회사 Pipe forming strainer
CN202597999U (en) * 2012-05-18 2012-12-12 武威市武科种业科技有限责任公司 Conveying pipeline
CN205745818U (en) * 2016-07-01 2016-11-30 南安蓬高水暖有限公司 The union elbow being convenient to clean
CN207486332U (en) * 2017-06-07 2018-06-12 广州赛奥碳纤维技术有限公司 A kind of high-efficiency carbon fibre carbide furnace waste discharge duct cleaning cabin
CN108916429A (en) * 2018-09-12 2018-11-30 山东建筑大学 A kind of liquid discharge device
CN208474776U (en) * 2018-07-07 2019-02-05 河北海乾威钢管有限公司 A kind of acidproof welded still pipe
CN210266348U (en) * 2019-06-03 2020-04-07 上海渝江建筑劳务有限公司 Shock-resistant equal-diameter engineering plastic elbow

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040040597A1 (en) * 2002-09-04 2004-03-04 Dara Cheng Transparent pipe trap with means of enhancing the biodegradation of sink effluents
WO2008056387A1 (en) * 2006-11-09 2008-05-15 Mazzini Service Srl System and device for detecting the blockage of pipes particularly for siphons of discharge ducts.
KR20080003788U (en) * 2007-03-06 2008-09-10 케이엠씨 주식회사 Pipe forming strainer
CN202597999U (en) * 2012-05-18 2012-12-12 武威市武科种业科技有限责任公司 Conveying pipeline
CN205745818U (en) * 2016-07-01 2016-11-30 南安蓬高水暖有限公司 The union elbow being convenient to clean
CN207486332U (en) * 2017-06-07 2018-06-12 广州赛奥碳纤维技术有限公司 A kind of high-efficiency carbon fibre carbide furnace waste discharge duct cleaning cabin
CN208474776U (en) * 2018-07-07 2019-02-05 河北海乾威钢管有限公司 A kind of acidproof welded still pipe
CN108916429A (en) * 2018-09-12 2018-11-30 山东建筑大学 A kind of liquid discharge device
CN210266348U (en) * 2019-06-03 2020-04-07 上海渝江建筑劳务有限公司 Shock-resistant equal-diameter engineering plastic elbow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113653880A (en) * 2021-07-14 2021-11-16 张子路 Petrochemical industry pipeline

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