CN114252211B - Pressure pipeline leakage monitoring device and manufacturing method - Google Patents
Pressure pipeline leakage monitoring device and manufacturing methodInfo
- Publication number
- CN114252211B CN114252211B CN202111418818.1A CN202111418818A CN114252211B CN 114252211 B CN114252211 B CN 114252211B CN 202111418818 A CN202111418818 A CN 202111418818A CN 114252211 B CN114252211 B CN 114252211B
- Authority
- CN
- China
- Prior art keywords
- wall body
- base
- gland
- groove
- rods
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
本发明公开了一种压力管道渗漏监测装置及制作方法，包括底座，所述底座两侧壁体中分别设有连接杆，所述底座中间位置壁体上还设有固定机构，所述固定机构包括固定座、压盖与限位杆，所述底座中间位置壁体中还开设有放置槽，所述放置槽内下方壁体中开设有第一螺槽，所述底座还在两侧中间位置的壁体中分别开设有插槽。本发明所述的一种压力管道渗漏监测装置及制作方法，通过采用在线压力监测装置对发生渗漏的情况及时进行报警，借助于带有地址编码功能压力传感器准确发现渗漏地点，并且，通过底座的设置便于针对不同内径的管道进行调节，同时，通过固定机构与连接杆的设置，便于将压力传感器进行固定以及底座的连接。
The present invention discloses a pressure pipeline leakage monitoring device and a manufacturing method, comprising a base, connecting rods are respectively provided in the walls on both sides of the base, a fixing mechanism is further provided on the wall at the middle position of the base, the fixing mechanism comprises a fixing seat, a pressure cover and a limiting rod, a placement groove is further provided in the wall at the middle position of the base, a first screw groove is provided in the wall below the placement groove, and the base further comprises slots respectively provided in the walls at the middle positions on both sides. The pressure pipeline leakage monitoring device and the manufacturing method described in the present invention uses an online pressure monitoring device to promptly alarm when leakage occurs, accurately finds the leakage location with the help of a pressure sensor with an address coding function, and facilitates adjustment for pipes with different inner diameters through the provision of the base. At the same time, the provision of the fixing mechanism and the connecting rod facilitates the fixing of the pressure sensor and the connection of the base.
Description
Technical Field
The invention relates to the technical field of pipeline monitoring equipment, in particular to a pressure pipeline leakage monitoring device and a manufacturing method thereof.
Background
The pressure pipeline (especially large-size long-distance pipeline) can be subjected to corrosion or external force impact damage crack in the long-time use process to cause the condition of gas or liquid medium leakage in the pipeline, but no device for monitoring the pressure pipeline leakage on line exists in the current market, only after operation and maintenance personnel find leakage by experience, the pipeline is inspected one by utilizing a leakage detector through a sound wave detection mode, and the inspection efficiency is low and the accuracy is poor.
Disclosure of Invention
The invention aims to provide a pressure pipeline leakage monitoring device and a manufacturing method thereof, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a pipeline under pressure seepage monitoring devices and manufacturing method, includes the base, be equipped with the connecting rod in the base both sides wall body respectively, still be equipped with fixed establishment on the base intermediate position wall body, fixed establishment includes fixing base, gland and gag lever post, still seted up the standing groove in the base intermediate position wall body, set up first helicoidal groove in the standing groove in the below wall body, the slot has still been seted up respectively in the wall body of both sides intermediate position in the base, the mounting hole has still been seted up respectively in the wall body that is located the both sides top in first mounting groove to the mounting hole communicates the cavity between first mounting groove and the slot, the second mounting groove has still been seted up in the side wall body in the mounting hole.
Preferably, the two outer walls on one side of the limiting rods are respectively provided with a fixed ring, the fixed rings and the limiting rods are integrally injection molded, the limiting rods are installed in corresponding installation holes in a penetrating mode, the fixed rings are installed in second installation grooves on one side in the installation holes in a penetrating mode, the outer walls on one side of the limiting rods are further sleeved with compression springs, and the compression springs are located on the right side wall body of the fixed rings and the right side of the second installation grooves
And a limiting rod between the side wall bodies.
Preferably, the upper side wall bodies on two sides of the connecting rod are respectively provided with an inserting rod, the two inserting rods and the connecting rod are integrally injection molded, the two side wall bodies on the top of the connecting rod are respectively fixedly provided with a clip, the two upper side wall bodies on one side of the inserting rod are respectively provided with a limiting groove, and the connecting rod is installed in the slot on one side of the base in a penetrating manner through the inserting rod on one side wall body.
Preferably, the wall body at the bottom of the fixing seat is provided with a stud, the stud and the fixing seat are integrally injection molded, the stud is screwed into a first screw groove arranged in a first mounting groove on the base, a placing groove is further formed in the wall body at the middle position of the top of the fixing seat, a second screw groove is further formed in the wall body at the outer side of the top of the fixing seat, a pressure sensor is embedded in the placing groove, and a connecting cable is fixedly arranged on the wall body at the top of the pressure sensor.
Preferably, a plurality of external thread blocks are arranged on the outer side wall body of the bottom of the gland, the external thread blocks and the gland are integrally injection molded, the external thread blocks are screwed into the second screw grooves, and the wall body at the middle position of the gland is also provided with a through hole.
The manufacturing method of the pressure pipeline leakage monitoring device comprises the following steps:
S1, fixedly connecting one end of a connecting cable, sealing the pressure sensor and the connection part of the pressure sensor and the connecting cable, and then clamping the pressure sensor into a placing groove at the top of the fixing seat.
And S2, enabling the gland to pass through the connecting cable through the through hole in the wall body, clamping the external thread block on the wall body at the bottom of the gland into the second screw groove at the top of the fixed seat, and then rotating the gland, so that the gland drives the external thread block on the wall body at the bottom to rotate in the second screw groove, the gland is fixedly arranged on the fixed seat through the external thread block, and the pressure sensor is arranged in the placing groove through the limit of the wall body at the bottom of the gland on the pressure sensor.
And S3, firstly inserting the inserted rods at one side of the two connecting rods into the slots at one side of the base, then screwing the studs at the bottom of the fixing seat into the first screw grooves in the first mounting grooves, further enabling the studs to gradually rotate downwards in the first screw grooves, further gradually extruding one end wall body of the two limiting rods at one side of the first mounting grooves to one side through the outer walls of the studs, further enabling the two limiting rods to respectively move to one side in the corresponding mounting holes, further enabling the other side wall body of the limiting rods to be clamped into the corresponding limiting grooves at one side of the inserted rods, further fixing the connecting rods in one side wall body of the base when the pressure sensor is fixed on the base, and clamping and fixing the connecting cable wall body through the clamping buckle.
And S4, fixing the processed base with the inner wall of the pressure pipeline firmly in a welding (metal) or bonding (plastic) mode according to different materials of the pressure pipeline, if the processed base is welded and connected, polishing a welding seam smoothly after welding, penetrating the connecting cable with the installation and debugging completion into a rubber protection tube with the diameter of 20-50 mm and the wall thickness of 0.5-1 mm, wherein the length of the rubber protection tube is matched with that of the connecting cable, an annular sealing gasket is arranged at the end part of the rubber protection tube, the pressure monitoring cable is pressed on the pressure pipeline through a flange plate to seal the annular sealing gasket, and then connecting the installed connecting cable with an external pressure monitoring alarm controller.
Compared with the prior art, the invention has the following beneficial effects:
According to the pressure pipeline leakage monitoring device and the manufacturing method, the online pressure monitoring device is adopted to timely alarm the leakage, the leakage place is accurately found by means of the pressure sensor with the address coding function, the pipelines with different inner diameters are conveniently adjusted through the arrangement of the base, and meanwhile, the pressure sensor is conveniently fixed and connected with the base through the arrangement of the fixing mechanism and the connecting rod.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present invention;
FIG. 2 is a split view of the main structure of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a split view of the connecting rod structure of the present invention;
Fig. 5 is a structural exploded view of the fixing mechanism of the present invention.
In the figure, 1, a base; 2, a connecting rod, 3, a fixing mechanism, 4, a fixing seat, 5, a gland, 6, a limit rod, 7, a first mounting groove, 8, a first screw groove, 9, a mounting hole, 10, a second mounting groove, 11, a slot, 12, a fixing ring, 13, a compression spring, 14, a plug rod, 15, a limit groove, 16, a stud, 17, a placing groove, 18, a second screw groove, 19, a pressure sensor, 20, a connecting cable, 21, an external screw block, 22, a perforation, 24 and a clip.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention easy to understand, the present invention is further described below in connection with the specific embodiments.
As shown in fig. 1-5, the pressure pipeline leakage monitoring device and the manufacturing method provided by the invention comprise a base 1, wherein connecting rods 2 are respectively arranged in two side wall bodies of the base 1, a fixing mechanism 3 is further arranged on the wall body at the middle position of the base 1, the fixing mechanism 3 comprises a fixing seat 4, a gland 5 and a limiting rod 6, a placing groove 17 is further formed in the wall body at the middle position of the base 1, a first spiral groove 8 is formed in the wall body at the upper part in the placing groove 17, slots 11 are respectively formed in the wall bodies at the middle positions of two sides of the base 1, mounting holes 9 are respectively formed in the wall bodies at the upper parts of two sides of the base 1 in the first mounting groove 7, the mounting holes 9 are used for communicating cavities between the first mounting groove 7 and the slots 11, and a second mounting groove 10 is further formed in one side wall body in the mounting hole 9.
The outer walls of one side of the two limiting rods 6 are respectively provided with a fixed ring 12, the fixed rings 12 and the limiting rods 6 are integrally injection molded, the limiting rods 6 are installed in the corresponding installation holes 9 in a penetrating mode, the fixed rings 12 are installed in the second installation grooves 10 on one side in the installation holes 9 in a penetrating mode, the outer walls of one side of the limiting rods 6 are further sleeved with compression springs 13, and the compression springs 13 are located on the limiting rods 6 between right side wall bodies of the fixed rings 12 and right side wall bodies in the second installation grooves 10.
The upper side wall bodies on two sides of the connecting rod 2 are respectively provided with an inserting rod 14, the two inserting rods 14 and the connecting rod 2 are integrally injection molded, the two side wall bodies on the top of the connecting rod 2 are respectively fixedly provided with a clip 23, the upper side wall bodies on one side of the two inserting rods 14 are respectively provided with a limit groove 15, and the connecting rod 2 is inserted and installed in the slot 11 on one side of the base 1 through the inserting rod 14 on one side wall body.
The wall body at the bottom of the fixed seat 4 is provided with a stud 16, the stud 16 and the fixed seat 4 are integrally injection molded, the stud 16 is screwed into a first screw groove 8 arranged in a first mounting groove 7 on the base 1, the wall body at the middle position of the top of the fixed seat 4 is also provided with a placing groove 17, the wall body at the outer side wall of the top of the fixed seat 4 is also provided with a second screw groove 18, a pressure sensor 19 is embedded in the placing groove 17, and a connecting cable 20 is fixedly arranged on the wall body at the top of the pressure sensor 19.
The outer side wall body at the bottom of the gland 5 is provided with a plurality of external thread blocks 21, the external thread blocks 21 and the gland 5 are integrally injection molded, the external thread blocks 21 are screwed into the second screw grooves 18, and the wall body at the middle position of the gland 5 is also provided with a through hole 22.
The manufacturing method of the pressure pipeline leakage monitoring device comprises the following steps:
S1, fixedly connecting one end of a connecting cable 20, sealing the pressure sensor 19 and the connection part of the pressure sensor 19 and the connecting cable 20, and then clamping the pressure sensor 19 into a placing groove 17 at the top of the fixed seat 4.
And S2, penetrating the gland 5 through the connecting cable 20 through the through hole 22 in the wall body, clamping the external thread block 21 on the bottom wall body of the gland 5 into the second screw groove 18 at the top of the fixed seat 4, and then rotating the gland 5, so that the gland 5 drives the external thread block 21 on the bottom wall body to rotate in the second screw groove 18, and further, the gland 5 is fixedly installed on the fixed seat 4 through the external thread block 21, and further, the pressure sensor 19 is installed in the placing groove 17 through the limit of the bottom wall body of the gland 5 to the pressure sensor 19.
And S3, firstly inserting the inserting rods 14 at one side of the two connecting rods 2 into the slots 11 at one side of the base 1 respectively, then screwing the studs 16 at the bottom of the fixing seat 4 into the first screw grooves 8 arranged in the first mounting grooves 7, further enabling the studs 16 to gradually rotate downwards in the first screw grooves 8, further gradually extruding one end wall body of the two limiting rods 6 at one side of the first mounting grooves 7 to one side respectively through the outer walls of the studs 16, further enabling the two limiting rods 6 to move to one side respectively in the corresponding mounting holes 9, further enabling the other side wall body of the limiting rods 6 to be clamped into the corresponding limiting grooves 15 at one side of the inserting rods 14, further fixing the connecting rods 2 in one side wall body of the base 1 when the pressure sensor 19 is fixed on the base 1, and clamping and fixing the wall body of the connecting cable 20 through the clamping buckles 24.
And S4, fixing the processed base 1 with the inner wall of the pressure pipeline firmly in a mode of welding metal or bonding plastic according to different materials of the pressure pipeline, if welding connection is adopted, polishing a welding seam after welding is smooth, penetrating the connecting cable 20 with the diameter of 20-50 mm and the wall thickness of 0.5-1 mm into a rubber protection tube with the length of 20mm, wherein the length of the rubber protection tube is matched with that of the connecting cable 20, an annular sealing gasket is arranged at the end part of the rubber protection tube, the pressure monitoring cable is pressed on the pressure pipeline through a flange plate to seal the annular sealing gasket, and then connecting the connecting cable 20 with an external pressure monitoring alarm controller.
It should be noted that, the invention is a pressure pipeline leakage monitoring device and manufacturing method, when in use, one end of a connecting cable 20 is fixedly connected, and the pressure sensor 19 and the connection part of the pressure sensor 19 and the connecting cable 20 are sealed, then the pressure sensor 19 is clamped into a placing groove 17 at the top of a fixed seat 4, then a gland 5 passes through the connecting cable 20 through a through hole 22 in a wall body, and a male screw block 21 on the bottom wall body of the gland 5 is clamped into a second screw groove 18 at the top of the fixed seat 4, then the gland 5 is rotated, and then the gland 5 is driven by the male screw block 21 on the bottom wall body to rotate in the second screw groove 18, and then the gland 5 is fixedly installed on a fixed seat 4 through the male screw block 21, and then the limit of the pressure sensor 19 is installed in the placing groove 17 through the bottom wall body of the gland 5, then the inserting rods 14 at one side of the two connecting rods 2 are respectively inserted into a slot 11 at one side of the base 1, then the stud 16 at the bottom of the fixed seat 4 is screwed into a first mounting groove 7, the male screw block 21 is clamped into the corresponding to the first screw groove 8 at one side of the two side walls 6 in the corresponding to the side wall body 6, and then one side of the two threaded studs 16 is further fixed in the side of the base 1 is clamped by the two side walls 6 at the two side walls 6, and then the two side of the threaded studs are further fixed by the threaded studs 6 are further pressed into the side 6 at the side 6, and one side is further fixed by the end wall 6 is further fixed by the threaded stud is further pressed into the side 6 at one side 6, in addition, according to the difference of pipeline under pressure material, the base 1 that will process the completion is fixed firm with pipeline under pressure through welding metal or bonding plastics mode, if for welded connection, the welding seam is polished smoothly after the welding, wears into the connecting cable 20 that the aforesaid installation and debugging was accomplished and is worn into diameter 20-50 millimeter wall thickness 0.5-1 millimeter rubber protection tube, rubber protection tube length should match with connecting cable 20 length, and rubber protection tube tip is provided with annular seal ring, and pressure monitoring cable goes out pipeline under pressure position and compresses tightly annular seal ring through the flange piece and seals, later, is connected connecting cable 20 that the installation was accomplished with outside pressure monitoring alarm controller.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The pressure pipeline leakage monitoring device is characterized by comprising a base (1), wherein connecting rods (2) are respectively arranged in two side wall bodies of the base (1), a fixing mechanism (3) is further arranged on the wall body at the middle position of the base (1), the fixing mechanism (3) comprises a fixing seat (4), a gland (5) and a limiting rod (6), a first mounting groove (7) is further formed in the wall body at the middle position of the base (1), a first spiral groove (8) is formed in the wall body at the lower part in the first mounting groove (7), slots (11) are respectively formed in the wall bodies at the middle positions of two sides of the base (1), mounting holes (9) are respectively formed in the wall bodies at the upper parts of two sides in the first mounting groove (7), the mounting holes (9) are communicated with a cavity between the first mounting groove (7) and the slots (11), and a second mounting groove (10) is further formed in the wall body at one side of the first mounting groove (7);
The two limiting rods (6) are respectively provided with a fixed ring (12) on one side outer wall, the fixed rings (12) and the limiting rods (6) are integrally injection molded, the limiting rods (6) are installed in corresponding installation holes (9) in a penetrating mode, the fixed rings (12) are installed in second installation grooves (10) on one side in the installation holes (9) in a penetrating mode, compression springs (13) are sleeved on one side outer wall of each limiting rod (6), and the compression springs (13) are located on the limiting rods (6) between right side wall bodies of the fixed rings (12) and inner right side wall bodies of the second installation grooves (10);
The two upper side wall bodies of the two sides of the connecting rod (2) are respectively provided with an inserting rod (14), the two inserting rods (14) and the connecting rod (2) are integrally injection molded, the two side wall bodies at the top of the connecting rod (2) are respectively fixedly provided with a clip (23), the upper side wall bodies at one side of the two inserting rods (14) are respectively provided with a limit groove (15), and the connecting rod (2) is installed in a slot (11) at one side of the base (1) in a penetrating way through the inserting rod (14) on one side wall body;
The wall body at the bottom of the fixed seat (4) is provided with a stud (16), the stud (16) and the fixed seat (4) are integrally injection molded, the stud (16) is screwed into a first screw groove (8) arranged in a first mounting groove (7) on the base (1), the wall body at the middle position of the top of the fixed seat (4) is also provided with a placing groove (17), the wall body at the outer side of the top of the fixed seat (4) is also provided with a second screw groove (18), a pressure sensor (19) is embedded in the placing groove (17), and a connecting cable (20) is fixedly arranged on the wall body at the top of the pressure sensor (19);
The novel screw cap is characterized in that a plurality of external thread blocks (21) are arranged on the outer side wall body at the bottom of the gland (5), the external thread blocks (21) and the gland (5) are integrally injection molded, the external thread blocks (21) are screwed into the second screw grooves (18), and through holes (22) are formed in the wall body at the middle position of the gland (5).
2. The method for manufacturing a pressure pipe leakage monitoring device according to claim 1, comprising the following steps:
s1, fixedly connecting one end of a connecting cable (20), sealing the pressure sensor (19) and the joint of the pressure sensor (19) and the connecting cable (20), and then clamping the pressure sensor (19) into a placing groove (17) at the top of a fixed seat (4);
S2, penetrating the gland (5) through a through hole (22) in the wall body to pass through a connecting cable (20), clamping an external thread block (21) on the bottom wall body of the gland (5) into a second screw groove (18) at the top of the fixed seat (4), and then rotating the gland (5), so that the gland (5) drives the external thread block (21) on the bottom wall body to rotate in the second screw groove (18), and the gland (5) is fixedly installed on the fixed seat (4) through the external thread block (21), and then the pressure sensor (19) is installed in the placing groove (17) through the limit of the bottom wall body of the gland (5) on the pressure sensor (19);
S3, inserting the inserted rods (14) at one side of the two connecting rods (2) into the slots (11) at one side of the base (1) respectively, screwing the studs (16) at the bottom of the fixing seat (4) into the first screw grooves (8) arranged in the first mounting grooves (7), further enabling the studs (16) to gradually rotate downwards in the first screw grooves (8), further gradually extruding one end wall body of the two limiting rods (6) at one side in the first mounting grooves (7) to one side respectively through the outer walls of the studs (16), further enabling the two limiting rods (6) to move to one side in the corresponding mounting holes (9) respectively, further enabling the other side wall body of the limiting rods (6) to be clamped into the limiting grooves (15) at one side of the corresponding inserted rods (14), further fixing the connecting rods (2) in one side wall body of the base (1) when the pressure sensor (19) is fixed on the base clamp (1), and fixing the wall body of the connecting cable (20) through the clamp (23);
And S4, fixing the processed base (1) with the inner wall of the pressure pipeline firmly in a welding or bonding mode according to different materials of the pressure pipeline, if the processed base is welded and connected, polishing a welding seam to be smooth after welding, penetrating a connecting cable (20) with the diameter of 20-50 mm and the wall thickness of 0.5-1 mm into a rubber protection tube with the length of 20 mm, wherein the length of the rubber protection tube is matched with that of the connecting cable (20), an annular sealing gasket is arranged at the end part of the rubber protection tube, the pressure monitoring cable is pressed on the pressure pipeline through a flange plate to seal the annular sealing gasket, and then connecting the connecting cable (20) with an external pressure monitoring alarm controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111418818.1A CN114252211B (en) | 2021-11-25 | 2021-11-25 | Pressure pipeline leakage monitoring device and manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111418818.1A CN114252211B (en) | 2021-11-25 | 2021-11-25 | Pressure pipeline leakage monitoring device and manufacturing method |
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| Publication Number | Publication Date |
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| CN114252211A CN114252211A (en) | 2022-03-29 |
| CN114252211B true CN114252211B (en) | 2025-08-26 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060000082U (en) * | 2006-11-10 | 2006-12-01 | (주) 지엠텍 | Pipe Testing Machine Using Hydraulic Pressure |
| CN214791671U (en) * | 2021-06-21 | 2021-11-19 | 王勇毅 | An air quality monitoring and purification system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995084A (en) * | 2020-08-28 | 2020-11-27 | 陈睿 | Automatic change sewage treatment aeration equipment and prevent blockking up mechanism thereof |
| CN213336652U (en) * | 2020-11-20 | 2021-06-01 | 库博标准汽车配件（苏州）有限公司 | Underwater high-pressure leakage detection device for pipeline |
| CN113670794B (en) * | 2021-09-06 | 2022-04-29 | 北京理工大学 | Material leakage characteristic characterization system and method in ultralow temperature environment |
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2021
- 2021-11-25 CN CN202111418818.1A patent/CN114252211B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060000082U (en) * | 2006-11-10 | 2006-12-01 | (주) 지엠텍 | Pipe Testing Machine Using Hydraulic Pressure |
| CN214791671U (en) * | 2021-06-21 | 2021-11-19 | 王勇毅 | An air quality monitoring and purification system |
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| CN114252211A (en) | 2022-03-29 |
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