CN110925505A - Environment-friendly industrial waste gas purification device easy to disassemble and clean quickly - Google Patents
Environment-friendly industrial waste gas purification device easy to disassemble and clean quickly Download PDFInfo
- Publication number
- CN110925505A CN110925505A CN201911257565.7A CN201911257565A CN110925505A CN 110925505 A CN110925505 A CN 110925505A CN 201911257565 A CN201911257565 A CN 201911257565A CN 110925505 A CN110925505 A CN 110925505A
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- Prior art keywords
- half pipe
- waste gas
- lower half
- groove
- flange
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/162—Flanged joints characterised by the sealing means the pipe ends abutting each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/22—Pipes composed of a plurality of segments
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention relates to the technical field of waste gas pipeline assembly, in particular to an environment-friendly industrial waste gas purification device easy to disassemble and clean quickly, which comprises a waste gas pipeline main body and a first flange, wherein the waste gas pipeline main body is composed of a lower half pipe, a clamping plate and an upper half pipe, a base is fixedly welded in the middle of the outer wall of the lower end of the lower half pipe, first slots are respectively arranged at the front side and the rear side of the upper end surface of the lower half pipe, lower sealing grooves are respectively arranged on the inner walls of the left end and the right end of the lower half pipe, and the beneficial effects: according to the invention, the traditional integrated pipeline is disassembled into a three-layer structure, so that the pipeline is convenient to disassemble and open, the inner wall of the pipeline is convenient to clean, and the cleaning efficiency and safety are greatly improved; through the cooperation of setting up connection link and spring, through compression spring, and then realize connecting the joint of link, improved the leakproofness of hookup location when realizing fixed connection, and then reduce the use of connecting piece for it is more convenient to install and dismantle.
Description
Technical Field
The invention relates to the technical field of waste gas pipeline assembly, in particular to an environment-friendly industrial waste gas purification device easy to disassemble and clean quickly.
Background
Along with deepening of environmental protection theory, processing enterprises such as mill pay more and more attention to the processing of waste gas, need use the pipeline to carry waste gas among the common exhaust purification processing apparatus, because the volume of waste gas is great, lead to the internal diameter of pipeline great, and then make the weight of pipeline heavier.
Current exhaust purification transport pipe way formula as an organic whole usually is difficult to dismantle and opens, when the clearance, needs the manual work clearance of crawling, leads to cleaning efficiency lower like this, and the security performance is relatively poor, and the pipe connection that has now simultaneously uses connecting pieces such as a large amount of bolts, and then leads to the installation comparatively loaded down with trivial details.
Therefore, the environment-friendly industrial waste gas purification device which is easy to disassemble and clean quickly is provided, and the problems of purification and installation of waste gas pipelines are solved.
Disclosure of Invention
The invention aims to provide an environment-friendly industrial waste gas purification device which is easy to disassemble and clean quickly, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an environment-friendly industrial waste gas purification device easy to disassemble and clean quickly comprises a waste gas pipeline main body and a first flange, wherein the waste gas pipeline main body is composed of a lower half pipe, clamping plates and an upper half pipe, a base is fixedly welded in the middle of the outer wall of the lower end of the lower half pipe, first slots are respectively arranged on the front side and the rear side of the upper end face of the lower half pipe, lower sealing grooves are respectively arranged on the inner walls of the left end and the right end of the lower half pipe, arc-shaped pressing grooves are respectively arranged at the end parts of the left end and the right end of the lower half pipe, a pair of clamping plates which are symmetrical in the front-back direction are arranged at the upper end of the lower half pipe, the upper half pipe is symmetrically arranged at the upper end of the clamping plates, middle sealing grooves are respectively arranged on the inner walls of the left end and the right end of the clamping plates, upper sealing grooves which are symmetrically distributed with the lower sealing grooves are, a clamping groove is formed in one side, far away from the left end face and the right end face of the upper half pipe and the lower half pipe, of the fixing block, a sliding plate is installed in the arc-shaped pressure groove in a sliding mode, and a spring is arranged between the sliding plate and the inner wall of the arc-shaped pressure groove;
first flange mounting is in the left side of first half pipe and second half pipe, and the left end face outside of first flange is provided with a plurality of connection mounting holes that circumference array distributes, and the position that corresponds with lower seal groove, middle seal groove and last seal groove of first flange is provided with the sealing ring, and the fixed position welding that the right-hand member face of first flange and arc indent correspond has the arc clamp plate, and the fixed position welding that the right-hand member face of first flange and fixed block correspond has a set of connecting block of longitudinal symmetry, the right-hand member symmetry of first half pipe and second half pipe is pegged graft and is had the second flange, rotate on the connecting block and install the connection link, it installs on the fixed block to connect the link.
Preferably, the clamping plate is vertically arranged between the lower half pipe and the upper half pipe, a lower inserting strip is arranged at the lower end of the clamping plate, and the lower inserting strip is inserted into an inner cavity of the first slot of the lower half pipe in a sliding manner.
Preferably, a set of second slots which are symmetrical front and back are formed in the lower end face of the upper half pipe, an upper inserting strip is arranged at the upper end of the clamping plate, and the upper inserting strip is inserted into the second slots in a sliding sealing mode.
Preferably, one end of the spring is fixedly installed on the inner wall of the arc-shaped pressure groove, the other end of the spring is fixedly abutted to the sliding plate, the sliding plate is tightly pressed with the arc-shaped pressure plate, and the arc-shaped pressure plate is inserted into the inner cavity of the arc-shaped pressure groove in a sliding mode.
Preferably, the lower sealing groove, the middle sealing groove and the upper sealing groove form a complete sealing groove, and a sealing washer is fixedly sleeved at the bottom of an inner cavity of the sealing groove.
Preferably, the sealing ring is fixedly welded on the right end face of the first flange, the sealing ring is tightly inserted into the inner cavity of the sealing groove, and the outer wall of the sealing ring is tightly pressed on the outer wall of the left end of the sealing washer.
Preferably, the connecting block is provided with a jack which penetrates through the connecting block from front to back, one end of the connecting hanging ring is rotatably arranged on the inner wall of the jack, and the other end of the connecting hanging ring is clamped and arranged in the clamping groove.
Preferably, the end parts of the left end and the right end of the clamping plate are provided with second threaded holes, the end surface of the first flange is provided with first threaded holes at positions corresponding to the second threaded holes, and the inner cavities of the first threaded holes and the second threaded holes are rotatably provided with fixing screws.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the traditional integrated pipeline is disassembled into a three-layer structure, so that the pipeline is convenient to disassemble and open, the inner wall of the pipeline is convenient to clean, and the cleaning efficiency and safety are greatly improved;
2. according to the invention, the connection hanging ring is matched with the spring, the clamping connection of the connection hanging ring is realized by compressing the spring, the sealing performance of the connection position is improved while the fixed connection is realized, the use of a connecting piece is reduced, and the installation and the disassembly are more convenient.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a perspective view of a first flange according to the present invention;
FIG. 4 is a schematic perspective view of the lower half-pipe of the present invention;
FIG. 5 is a schematic perspective view of the upper tube half of the present invention;
FIG. 6 is a schematic perspective view of a clamping plate according to the present invention;
fig. 7 is an enlarged view of a structure a in fig. 2.
In the figure: 1 first flange, 2 lower half pipes, 3 upper half pipes, 4 clamping plates, 5 second flanges, 6 connecting mounting holes, 7 connecting hanging rings, 8 sealing rings, 9 arc-shaped pressing plates, 10 connecting blocks, 11 inserting holes, 12 first threaded holes, 13 fixing screws, 14 arc-shaped pressing grooves, 15 fixing blocks, 16 clamping grooves, 17 sliding plates, 18 springs, 19 sealing grooves, 20 sealing gaskets, 21 bases, 22 first inserting grooves, 23 lower sealing grooves, 24 upper sealing grooves, 25 second inserting grooves, 26 upper inserting strips, 27 lower inserting strips, 28 middle sealing grooves and 29 second threaded holes.
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.
Referring to fig. 1 to 7, the present invention provides a technical solution:
the utility model provides an environment-friendly industrial waste gas purification device who easily dismantles clearance fast, includes exhaust-gas line main part and first flange 1, the exhaust-gas line main part comprises second half pipe 2, cardboard 4 and first half pipe 3, and through disassembling traditional integral type pipeline into three layer construction, and then the dismantlement of the pipeline of being convenient for is opened, is convenient for realize the convenient clearance to the pipeline inner wall, has improved the efficiency and the security of clearance greatly.
Fixed welding has base 21 in the middle of half pipe 2's the lower extreme outer wall, both sides all are provided with first slot 22 around half pipe 2's the up end, half pipe 2's upper end is provided with a pair of cardboard 4 of symmetry around, cardboard 4 is vertical to be installed between half pipe 2 and first pipe 3 down, cardboard 4's lower extreme is provided with down cutting 27, cutting 27 slides and pegs graft at half pipe 2's first slot 22 inner chamber down, utilize cutting 27 and first slot 22's cooperation down, realize half pipe 2 and the sealing connection between the cardboard 4 down.
The upper half pipe 3 is installed to the upper end symmetry of cardboard 4, and a set of second slot 25 of symmetry around the lower terminal surface of upper half pipe 3 has been seted up, and the upper end of cardboard 4 is provided with cutting 26, and cutting 26 sliding seal pegs graft in second slot 25 on, utilizes the cooperation of cutting 26 and second slot 25 on, realizes the sealing connection between cardboard 4 and the upper half pipe 3.
The outer side of the left end face of the first flange 1 is provided with a plurality of connecting and mounting holes 6 distributed in a circumferential array mode, and the connecting and mounting holes 6 are used for achieving fixed connection between adjacent pipelines.
The fixed welding in position that the right-hand member face of first flange 1 and arc indent 14 correspond has arc clamp plate 9, and arc clamp plate 9 slides and pegs graft in the inner chamber of arc indent 14, and sliding plate 17 and the inseparable pressfitting of arc clamp plate 9 utilize arc clamp plate 9 to realize the extrusion to sliding plate 17, and then make spring 18 compressed.
The position that first flange 1 corresponds with lower seal groove 23, middle seal groove 28 and last seal groove 24 is provided with sealing ring 8, the fixed welding of sealing ring 8 is at the right-hand member face of first flange 1, sealing ring 8 closely pegs graft in the inner chamber of seal groove 19, the inseparable pressfitting of the outer wall of sealing ring 8 is at seal ring 20's left end outer wall, utilize the cooperation of sealing ring 8 with seal ring 20, realize the sealed of seal groove 19, and then realize the sealed of hookup location, prevent gas leakage.
The working principle is as follows: at first, the waste gas pipeline main part comprises lower half pipe 2, cardboard 4 and first half pipe 3, and through disassembling traditional integral type pipeline into three layer construction, and then the dismantlement of the pipeline of being convenient for is opened, is convenient for realize the convenient clearance to the pipeline inner wall, has improved the efficiency and the security of clearance greatly.
The lower half pipe 2 and the clamping plate 4 are connected in a sealing mode through the cooperation of the lower inserting strip 27 and the first inserting groove 22, the clamping plate 4 and the upper half pipe 3 are connected in a sealing mode through the cooperation of the upper inserting strip 26 and the second inserting groove 25, the left end and the right end of the waste gas pipeline main body are fixed through the first flange 1 and the second flange 5, and therefore sealing assembly of the waste gas pipeline main body is achieved.
When the first flange 1 is mounted, the sealing groove 19 is sealed by the cooperation of the sealing ring 8 and the sealing washer 20, and further, the connection position is sealed to prevent gas leakage.
Utilize the cooperation between set screw 13 and the screw hole, realize the fixed connection between cardboard 4 and the first flange 1, utilize arc clamp plate 9 to realize the extrusion to sliding plate 17, make spring 18 compressed, spring 18 compression drives sliding plate 17 and first flange 1 and moves right, and then make the distance between connection link 7 and draw-in groove 16 shorten, connect link 7 through rotating, make the other end joint of connecting link 7 on draw-in groove 16, and then realize first flange 1, fixed connection between first pipe 3 and the second pipe 2, the leakproofness of hookup location has been improved when realizing fixed connection, and the use of connecting pieces such as bolt has been reduced, it only needs compression spring 18 to dismantle the installation, it is more convenient to make the installation dismantle.
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 (8)
1. The utility model provides an environment-friendly industrial waste gas purification device who easily dismantles clearance fast, includes exhaust gas pipeline main part and first flange (1), its characterized in that: the waste gas pipeline main body comprises a lower half pipe (2), clamping plates (4) and an upper half pipe (3), wherein a base (21) is fixedly welded in the middle of the outer wall of the lower end of the lower half pipe (2), first slots (22) are formed in the front and rear sides of the upper end face of the lower half pipe (2), lower sealing grooves (23) are formed in the inner walls of the left end and the right end of the lower half pipe (2), arc-shaped pressing grooves (14) are formed in the end portions of the left end and the right end of the lower half pipe (2), a pair of clamping plates (4) which are symmetrical in the front and rear direction are arranged at the upper end of the lower half pipe (2), the upper half pipe (3) is symmetrically arranged at the upper end of the clamping plates (4), middle sealing grooves (28) are formed in the inner walls of the left end and the right end of the clamping plates (4), upper sealing grooves (24) which are symmetrically distributed with the lower sealing grooves (23) are formed in the inner walls of the left end and the, fixed blocks (15) are fixedly welded on the left side and the right side of the arc outer walls of the upper half pipe (3) and the lower half pipe (2), a clamping groove (16) is formed in one side, far away from the left end face and the right end face of the upper half pipe (3) and the lower half pipe (2), of each fixed block (15), a sliding plate (17) is installed in each arc-shaped pressure groove (14) in a sliding mode, and a spring (18) is arranged between each sliding plate (17) and the inner wall of each arc-shaped pressure groove (14);
the first flange (1) is arranged on the left side of the upper half pipe (3) and the lower half pipe (2), a plurality of connecting mounting holes (6) distributed in a circumferential array manner are formed in the outer side of the left end face of the first flange (1), sealing rings (8) are arranged at positions of the first flange (1) corresponding to the lower sealing groove (23), the middle sealing groove (28) and the upper sealing groove (24), an arc-shaped pressing plate (9) is fixedly welded at a position of the right end face of the first flange (1) corresponding to the arc-shaped pressing groove (14), and a group of connecting blocks (10) which are symmetrical up and down are fixedly welded at a position of the right end face of the first flange (1) corresponding to the fixing block (15), the right ends of the upper half pipe (3) and the lower half pipe (2) are symmetrically inserted with second flanges (5), the connecting block (10) is rotatably provided with a connecting hanging ring (7), and the connecting hanging ring (7) is arranged on the fixing block (15).
2. The environment-friendly industrial waste gas purification device easy to disassemble and clean quickly as claimed in claim 1, wherein: the clamping plate (4) is vertically arranged between the lower half pipe (2) and the upper half pipe (3), a lower inserting strip (27) is arranged at the lower end of the clamping plate (4), and the lower inserting strip (27) is slidably inserted into an inner cavity of the first slot (22) of the lower half pipe (2).
3. The environment-friendly industrial waste gas purification device easy to disassemble and clean quickly as claimed in claim 1, wherein: a set of second slots (25) which are symmetrical front and back are formed in the lower end face of the upper half pipe (3), an upper inserting strip (26) is arranged at the upper end of the clamping plate (4), and the upper inserting strip (26) is inserted into the second slots (25) in a sliding and sealing mode.
4. The environment-friendly industrial waste gas purification device easy to disassemble and clean quickly as claimed in claim 1, wherein: one end of the spring (18) is fixedly arranged on the inner wall of the arc-shaped pressure groove (14), the other end of the spring (18) is fixedly abutted against the sliding plate (17), the sliding plate (17) is tightly pressed with the arc-shaped pressure plate (9), and the arc-shaped pressure plate (9) is inserted into the inner cavity of the arc-shaped pressure groove (14) in a sliding mode.
5. The environment-friendly industrial waste gas purification device easy to disassemble and clean quickly as claimed in claim 1, wherein: complete seal groove (19) is constituteed to lower seal groove (23), middle seal groove (28) and last seal groove (24), seal ring (20) has been cup jointed to the inner chamber bottom of seal groove (19).
6. The environment-friendly industrial waste gas purification device easy to disassemble and clean quickly as claimed in claim 1, wherein: sealing ring (8) fixed welding is at the right-hand member face of first flange (1), and closely the grafting is at the inner chamber of seal groove (19) in sealing ring (8), and the inseparable pressfitting of the outer wall of sealing ring (8) is at the left end outer wall of seal ring (20).
7. The environment-friendly industrial waste gas purification device easy to disassemble and clean quickly as claimed in claim 1, wherein: the connecting block (10) is provided with a jack (11) which penetrates through the front and the back, one end of the connecting hanging ring (7) is rotatably arranged on the inner wall of the jack (11), and the other end of the connecting hanging ring (7) is clamped and arranged in the clamping groove (16).
8. The environment-friendly industrial waste gas purification device easy to disassemble and clean quickly as claimed in claim 1, wherein: second threaded holes (29) are formed in the end portions of the left end and the right end of the clamping plate (4), first threaded holes (12) are formed in the positions, corresponding to the second threaded holes (29), of the end face of the first flange (1), and fixing screws (13) are rotatably mounted in inner cavities of the first threaded holes (12) and the second threaded holes (29).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257565.7A CN110925505B (en) | 2019-12-10 | 2019-12-10 | Environment-friendly industrial waste gas purification device easy to disassemble and clean quickly |
| CN202110356620.9A CN113187970A (en) | 2019-12-10 | 2019-12-10 | Environment-friendly industrial waste gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257565.7A CN110925505B (en) | 2019-12-10 | 2019-12-10 | Environment-friendly industrial waste gas purification device easy to disassemble and clean quickly |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110356620.9A Division CN113187970A (en) | 2019-12-10 | 2019-12-10 | Environment-friendly industrial waste gas purification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110925505A true CN110925505A (en) | 2020-03-27 |
| CN110925505B CN110925505B (en) | 2021-11-30 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110356620.9A Withdrawn CN113187970A (en) | 2019-12-10 | 2019-12-10 | Environment-friendly industrial waste gas purification device |
| CN201911257565.7A Active CN110925505B (en) | 2019-12-10 | 2019-12-10 | Environment-friendly industrial waste gas purification device easy to disassemble and clean quickly |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110356620.9A Withdrawn CN113187970A (en) | 2019-12-10 | 2019-12-10 | Environment-friendly industrial waste gas purification device |
Country Status (1)
| Country | Link |
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| CN (2) | CN113187970A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110646304A (en) * | 2019-11-11 | 2020-01-03 | 姚帅锋 | Automobile fender production strength detection device |
| CN111637288A (en) * | 2020-06-02 | 2020-09-08 | 贵州枫叶管业有限公司 | PE water supply pipe with strong corrosion-resistant structural design and preparation process thereof |
| CN111692440A (en) * | 2020-07-03 | 2020-09-22 | 中国人民解放军32382部队 | Oil pipe quick connector for external pump station of vehicle hydraulic system |
| CN113281471A (en) * | 2021-07-23 | 2021-08-20 | 江苏金广恒工业设备制造有限公司 | Flue gas monitoring system for incinerator with non-stop detection and maintenance function |
| CN114307414A (en) * | 2021-11-25 | 2022-04-12 | 金宏林 | Industrial high-temperature waste gas environment-friendly purification treatment device |
| CN114763864A (en) * | 2021-05-07 | 2022-07-19 | 上海瀛明砼制品有限公司 | Pipeline connection structure convenient to dismantle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113418066A (en) * | 2021-08-04 | 2021-09-21 | 张家港华日法兰有限公司 | High-strength flange connection structure and mounting method thereof |
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