CN113125075A - Leakage-proof testing device for heating and ventilation pipeline - Google Patents
Leakage-proof testing device for heating and ventilation pipeline Download PDFInfo
- Publication number
- CN113125075A CN113125075A CN202110426435.2A CN202110426435A CN113125075A CN 113125075 A CN113125075 A CN 113125075A CN 202110426435 A CN202110426435 A CN 202110426435A CN 113125075 A CN113125075 A CN 113125075A
- Authority
- CN
- China
- Prior art keywords
- stirring
- heating
- pressure
- pressure stabilizing
- leakage
- 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.)
- Pending
Links
Images
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
Abstract
The invention is suitable for the technical field of engineering equipment, and provides a leakage-proof testing device for a heating and ventilation pipeline; the method comprises the following steps: the device comprises a mounting seat, a pressure feed pump and a liquid storage tank are arranged on the mounting seat, a first stirring part and a second stirring part are arranged in the pressure feed pump, and the first stirring part and the second stirring part are different in stirring direction; the input end of the feed pump is communicated with the interior of the liquid storage tank through a pipeline, the liquid storage tank is used for storing water containing cleaning fluid, an output tube is arranged on the feed pump, a pressure stabilizing piece is arranged on the output tube, the interior of the pressure stabilizing piece is hollow and is communicated with the interior of the output tube, a sliding block is arranged in the pressure stabilizing piece in a vertically sliding mode, the upper end of the sliding block penetrates through the upper end of the pressure stabilizing piece, a first elastic piece is sleeved on the outer side of the sliding block, two ends of the first elastic piece are fixedly arranged on the sliding block and the pressure stabilizing piece respectively, and a position switch is further arranged on the pressure stabilizing piece; the mounting seat is arranged on the base through a damping mechanism.
Description
Technical Field
The invention relates to the technical field of engineering equipment, in particular to a leakage-proof testing device for a heating and ventilation pipeline.
Background
The thickness and specification of the heating and ventilation pipeline can be changed according to requirements, and usually, when the heating and ventilation pipeline is connected, two ends of the air pipe are always externally connected with accessories (such as elbows and reducing pipes). Generally, the two ends of the heating and ventilating pipeline are not provided with grooves and are provided with sealing rings.
At present, the heating pipeline in many buildings is all laid underground, and the leakproofness of heating ventilating pipeline is often required to be tested before the fitment to whether the testing heating ventilating pipeline has the leakage point, guarantees the normal heating in later stage.
The existing leakage-proof testing device needs manual work to close equipment when pressure is close to testing pressure in the pressing process, so that the equipment is not closed timely, pipeline overvoltage or undervoltage is easily caused, the testing result is unsatisfactory, and a solution is proposed at present.
Disclosure of Invention
The invention aims to provide a leakage-proof testing device for a heating and ventilation pipeline, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a leakage-proof test device for a heating and ventilation pipeline comprises: the device comprises a mounting seat, a pressure feed pump and a liquid storage tank are arranged on the mounting seat, a first stirring part and a second stirring part are arranged in the pressure feed pump, and the first stirring part and the second stirring part are different in stirring direction; the input end of the feed pump is communicated with the interior of the liquid storage tank through a pipeline, the liquid storage tank is used for storing water containing cleaning liquid, so that the pipeline can be cleaned conveniently in the testing process, an output pipe is arranged on the feed pump, a pressure stabilizing piece is arranged on the output pipe, the interior of the pressure stabilizing piece is hollow, the interior of the pressure stabilizing piece is communicated with the interior of the output pipe, a sliding block is arranged in the pressure stabilizing piece in a vertically sliding mode, the upper end of the sliding block penetrates through the upper end of the pressure stabilizing piece, a first elastic piece is sleeved on the outer side of the sliding block, two ends of the first elastic piece are fixedly arranged on the sliding block and the pressure stabilizing piece respectively, and a position switch is further arranged on the pressure stabilizing piece and used; the mounting seat is mounted on the base through a damping mechanism.
As a further scheme of the invention: the height of the position switch can be adjusted.
As a still further scheme of the invention: the outer side of the position switch is connected with a connecting piece, the connecting piece is connected to an adjusting sleeve, and the adjusting sleeve is mounted on the pressure stabilizing piece in a height-adjustable mode.
As a still further scheme of the invention: the adjusting sleeve is installed on the outer side of the pressure stabilizing piece through threads, and the connecting piece is rotatably installed on the adjusting sleeve.
As a still further scheme of the invention: the liquid storage tank is provided with an input pipe, the input pipe is used for being connected with the other end of the heating and ventilating pipeline, and the connecting piece is further provided with a pressure release valve.
As a still further scheme of the invention: the first stirring component comprises a first stirring shaft rotatably arranged in the liquid storage tank and first stirring blades arranged on the first stirring shaft in an array manner; the second stirring part comprises a plurality of second stirring shafts horizontally arranged at the bottom of the mounting seat, a plurality of second stirring blades are arranged on the second stirring shafts in an array mode, and the mounting directions of the second stirring shafts and the first stirring shafts are different.
As a still further scheme of the invention: the bottom of the first stirring shaft is sleeved with a second bevel gear, two sides of the second bevel gear are provided with first bevel gears meshed with the second bevel gear, and the first bevel gears are fixedly sleeved on the second stirring shaft.
As a still further scheme of the invention: the liquid storage tank is also provided with a driving assembly for driving the first stirring shaft to rotate, and the driving assembly comprises a driving motor in transmission connection with the first stirring shaft.
As a still further scheme of the invention: the damping mechanism comprises racks arranged on two sides of the bottom of the mounting seat, one-way gears meshed with the racks are arranged on two sides of the rack respectively, a first rotating shaft is arranged on each one-way gear, the first rotating shaft is rotatably mounted on the support, the support is fixedly mounted on the base, a damping torsion spring is sleeved on the outer side of the support, two ends of the damping torsion spring are mounted on the first rotating shaft and the support respectively, and the transmission directions of the one-way gears on two sides of the rack are different.
As a still further scheme of the invention: the one-way gears on the two sides of the rack are arranged in a plurality of ways.
Compared with the prior art, the invention has the beneficial effects that: the invention enables the cleaning liquid to be mixed with water more uniformly, and simultaneously realizes the protection of the pipeline by arranging the pressure stabilizing piece, realizes automatic protection and avoids the manual closing in the prior art; the vibration of the equipment in the operation process is reduced by arranging the damping mechanism, and the service life of the equipment is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a leakage-proof testing device for a heating and ventilation pipeline.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a structural schematic diagram of a rack in the leakage-proof testing device for the heating and ventilation pipeline.
In the figure: the device comprises a mounting seat-1, a liquid storage tank-2, a feed pressure pump-3, an output pipe-4, a pressure gauge-5, a first stirring shaft-6, a first stirring blade-7, a second stirring blade-8, a second stirring shaft-9, a first bevel gear-10, a second bevel gear-11, a rack-12, a one-way gear-13, a first rotating shaft-14, a damping torsion spring-15, a base-16, a support-17, a supporting roller-18, a pressure stabilizing piece-19, a sliding block-20, a first elastic piece-21, an adjusting sleeve-22, a position switch-23, a connecting piece-24, an input pipe-25 and a pressure release valve-26.
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
Referring to fig. 1 to 3, in embodiment 1 of the present invention, a structure diagram of a leakage-proof testing apparatus for a heating and ventilation pipeline includes: the device comprises a mounting base 1, wherein a pressure feed pump 3 and a liquid storage tank 2 are arranged on the mounting base 1, a first stirring part and a second stirring part are arranged in the pressure feed pump 3, and the stirring directions of the first stirring part and the second stirring part are different;
the input end of the pressure feed pump 3 is communicated with the interior of the liquid storage tank 2 through a pipeline, the liquid storage tank 2 is used for storing water containing cleaning liquid, so that the pipeline can be cleaned conveniently in the test process,
an output tube 4 is arranged on the feed pump 3, a pressure stabilizing piece 19 is arranged on the output tube 4, the pressure stabilizing piece 19 is arranged in a hollow manner, the interior of the pressure stabilizing piece 19 is communicated with the interior of the output tube 4, a sliding block 20 is arranged in the pressure stabilizing piece 19 in a vertically sliding manner, the upper end of the sliding block 20 penetrates through the upper end of the pressure stabilizing piece 19, a first elastic piece 21 is sleeved on the outer side of the sliding block 20, two ends of the first elastic piece 21 are fixedly arranged on the sliding block 20 and the pressure stabilizing piece 19 respectively, a position switch 23 is further arranged on the pressure stabilizing piece 19, and the position switch 23 is used for controlling the feed pump 3 to stop working;
the mounting base 1 is mounted on the base 16 through a damping mechanism, so that the vibration of the equipment in the operation process is reduced, and the service life of the equipment is prolonged.
Specifically, cleaning fluid is added into the liquid storage tank 2, water is added into the liquid storage tank 2, the first stirring component and the second stirring component stir raw materials in the liquid storage tank 2, so that the cleaning fluid can be uniformly mixed with the water, and then one end of a heating and ventilation pipeline to be tested is connected to the output pipe 4, and the other end of the heating and ventilation pipeline is blocked; then the pressure pump 3 is electrified to work, mixed liquid after the warning liquid storage tank 2 is stirred is introduced into the pipeline, the sliding block 20 moves upwards along with the increase of the pressure in the pipeline, when the limited pressure is reached, the upper end of the sliding block 20 is abutted to the position switch 23, the position switch 23 sends a signal to cut off the power of the pressure pump 3 and stop pressurizing, the pipeline is protected, automatic protection is realized, and the manual closing in the prior art is avoided; meanwhile, the vibration of the equipment in the operation process is reduced by arranging the damping mechanism, and the service life of the equipment is prolonged. The invention enables the cleaning liquid to be mixed with water more uniformly, and simultaneously realizes the protection of the pipeline by arranging the pressure stabilizing piece 19, realizes automatic protection and avoids the manual closing in the prior art; the vibration of the equipment in the operation process is reduced by arranging the damping mechanism, and the service life of the equipment is prolonged.
The output pipe 4 is also provided with a pressure gauge 5, and the pressure gauge 5 is arranged to facilitate observation of test pressure and guarantee safety.
Example 2
Referring to fig. 1 to 3, the main difference between the present embodiment 2 and the present embodiment 1 is that the height of the position switch 23 is adjustable, so as to meet the requirements of different testing pressures.
Specifically, the outer side of the position switch 23 is connected with a connecting piece 24, the connecting piece 24 is connected to an adjusting sleeve 22, and the adjusting sleeve 22 is mounted on the pressure stabilizing piece 19 in a height-adjustable manner, so that when the height needs to be adjusted, the height of the position switch 23 can be adjusted by adjusting the position of the adjusting sleeve 22 on the pressure stabilizing piece 19, and the pressure feeding pump 3 can be closed by different pressures.
The adjusting sleeve 22 is mounted by means of a screw thread on the outside of the pressure stabilizer 19, and the connecting piece 24 is mounted rotatably on the adjusting sleeve 22, thus preventing the position switch 23 from rotating with the adjusting sleeve 22.
The pressure feed pump 3 is provided with a controller, the controller is electrically connected with the position switch 23, so that the position switch 23 can conveniently transmit a power-off signal to the controller, and the pressure feed pump 3 can be closed by the controller.
An input pipe 25 is arranged on the liquid storage tank 2, the input pipe 25 is used for being connected with the other end of the heating and ventilation pipeline, a pressure release valve 26 is further arranged on the connecting piece 24, and the pressure release valve 26 is arranged to prevent the interior of the pipeline from being over-pressurized, so that redundant pressure can be conveniently removed.
The first stirring component comprises a first stirring shaft 6 rotatably arranged in the liquid storage tank 2 and first stirring blades 7 arranged on the first stirring shaft 6 in an array manner; the second stirring part comprises a plurality of second stirring shafts 9 horizontally arranged at the bottom of the mounting seat 1, a plurality of second stirring blades 8 are arranged on the second stirring shafts 9 in an array mode, the mounting directions of the second stirring shafts 9 and the first stirring shafts 6 are different, so that stirring at different positions is realized, collision between raw materials is increased, and the stirring effect is better.
The bottom of the first stirring shaft 6 is sleeved with a second bevel gear 11, two sides of the second bevel gear 11 are provided with first bevel gears 10 meshed with the second bevel gears, and the first bevel gears 10 are fixedly sleeved on the second stirring shaft 9. So when first (mixing) shaft 6 rotates, drive second (mixing) shaft 9 through second bevel gear 11 and first bevel gear 10 and rotate, and then rotate for second (mixing) shaft 9 and provide power, so make the structure simpler.
The liquid storage tank 2 is also provided with a driving component for driving the first stirring shaft 6 to rotate, and the driving component comprises a driving motor in transmission connection with the first stirring shaft 6, so that power is provided for the rotation of the first stirring shaft 6.
Damper is including setting up rack 12 in 1 bottom both sides of mount pad, rack 12 both sides are provided with meshing single gear 13 with it respectively, be provided with first pivot 14 on the single gear 13, first pivot 14 rotates and installs on support 17, support 17 fixed mounting is on base 16, support 17 outside has set up damping torsion spring 15, damping torsion spring 15 both ends are installed respectively on first pivot 14 and support 17, the single gear 13 direction of transmission of rack 12 both sides is different. Thus, when the mounting seat 1 receives downward vibration, the one-way gear 13 on one side transmits the vibration to the first rotating shaft 14, the first rotating shaft 14 absorbs the vibration together with the damping torsion spring 15, when the mounting seat 1 vibrates upwards, the damping torsion spring 15 on the first rotating shaft 14 on one side releases the vibration absorbed just before, due to the one-way arrangement of the one-way gear 13, the released energy cannot be transmitted to the mounting seat 1 continuously, the one-way gear 13 on the other side transmits the vibration to the first rotating shaft 14, and the first rotating shaft 14 absorbs the vibration together with the damping torsion spring 15; so realized the absorption of vibration repeatedly, prevented that the absorbed vibration from transmitting again for mount pad 1, and then realized quick shock attenuation.
The one-way gears 13 on both sides of the rack 12 are all arranged in a plurality of ways, so that shock absorption can be realized more quickly.
And supporting rollers 18 are arranged on two sides of the bottom of the base 16, so that the moving performance of the equipment is improved.
The working principle of the invention is as follows:
adding cleaning fluid into the liquid storage tank 2, adding water into the liquid storage tank 2, driving a first stirring shaft 6 to rotate by a driving motor, driving a first stirring blade 7 to stir by the first stirring shaft 6, driving a second stirring shaft 9 to drive a second stirring blade 8 to stir by the first stirring shaft 6 through a second bevel gear 11 and a first bevel gear 10, so that the cleaning fluid can be uniformly mixed with the water, and then connecting one end of a heating and ventilation pipeline to be tested to an output pipe 4 and blocking the other end of the heating and ventilation pipeline; then the pressure pump 3 is electrified to work, mixed liquid after the warning liquid storage tank 2 is stirred is introduced into the pipeline, the sliding block 20 moves upwards along with the increase of the pressure in the pipeline, when the limited pressure is reached, the upper end of the sliding block 20 is abutted to the position switch 23, the position switch 23 sends a signal to cut off the power of the pressure pump 3 and stop pressurizing, the pipeline is protected, automatic protection is realized, and the manual closing in the prior art is avoided; meanwhile, the vibration of the equipment in the operation process is reduced by arranging the damping mechanism, and the service life of the equipment is prolonged.
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, in the description of the present invention, "a plurality" means two or more unless otherwise specified. A feature defined as "first," "second," etc. may explicitly or implicitly include one or more of the feature.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A leakage-proof test device for a heating and ventilation pipeline comprises: the device comprises a mounting seat (1), wherein a pressure feed pump (3) and a liquid storage tank (2) are arranged on the mounting seat (1), a first stirring part and a second stirring part are arranged in the pressure feed pump (3), and the stirring directions of the first stirring part and the second stirring part are different; it is characterized in that the input end of the pressure feed pump (3) is communicated with the inside of the liquid storage tank (2) through a pipeline, the liquid storage tank (2) is used for storing water containing cleaning fluid, the pressure feed pump (3) is provided with an output pipe (4), a pressure stabilizing piece (19) is arranged on the output pipe (4), the interior of the pressure stabilizing piece (19) is arranged in a hollow way, the interior of the pressure stabilizing piece (19) is communicated with the interior of the output pipe (4), a sliding block (20) is arranged in the pressure stabilizing piece (19) in a vertical sliding manner, the upper end of the sliding block (20) is arranged by penetrating through the upper end of the pressure stabilizing piece (19), and the outer side of the sliding block (20) is sleeved with a first elastic piece (21), two ends of the first elastic piece (21) are respectively and fixedly arranged on the sliding block (20) and the pressure stabilizing piece (19), the pressure stabilizing piece (19) is also provided with a position switch (23), and the position switch (23) is used for controlling the stop work of the feed pressure pump (3); the mounting seat (1) is mounted on the base (16) through a damping mechanism.
2. The device for testing the leakage prevention of a heating and ventilation duct according to claim 1, wherein the position switch (23) is height-adjustably set.
3. The leak-proof test device for the heating and ventilation pipeline according to claim 2, characterized in that a connecting piece (24) is connected to the outside of the position switch (23), the connecting piece (24) is connected to an adjusting sleeve (22), and the adjusting sleeve (22) is mounted on the pressure stabilizer (19) in a height-adjustable manner.
4. The leak-proof test device for the heating and ventilation pipe according to claim 3, wherein the adjusting sleeve (22) is installed outside the stabilizer (19) by a screw thread, and the connecting member (24) is rotatably installed on the adjusting sleeve (22).
5. The leakage-proof testing device for the heating and ventilation pipeline is characterized in that an input pipe (25) is arranged on the liquid storage tank (2), the input pipe (25) is used for being connected with the other end of the heating and ventilation pipeline, and a pressure release valve (26) is further arranged on the connecting piece (24).
6. The leakage-proof test device of the heating and ventilation pipeline according to claim 1, wherein the first stirring part comprises a first stirring shaft (6) rotatably arranged inside the liquid storage tank (2) and first stirring blades (7) arranged on the first stirring shaft (6) in an array; the second stirring part comprises a plurality of second stirring shafts (9) horizontally arranged at the bottom of the mounting seat (1), a plurality of second stirring blades (8) are arranged on the second stirring shafts (9) in an array mode, and the mounting directions of the second stirring shafts (9) and the first stirring shafts (6) are different.
7. The leakage-proof testing device for the heating and ventilation pipeline according to claim 6, wherein a second bevel gear (11) is sleeved at the bottom of the first stirring shaft (6), first bevel gears (10) meshed with the second bevel gear (11) are arranged on two sides of the second bevel gear (11), and the first bevel gears (10) are fixedly sleeved on the second stirring shaft (9).
8. The leakage-proof testing device for the heating and ventilation pipeline according to claim 6, wherein a driving component for driving the first stirring shaft (6) to rotate is further arranged on the liquid storage tank (2), and the driving component comprises a driving motor in transmission connection with the first stirring shaft (6).
9. The leakage-proof testing device for the heating and ventilation pipeline according to any one of claims 1 to 8, wherein the damping mechanism comprises racks (12) arranged on two sides of the bottom of the mounting seat (1), one-way gears (13) meshed with the racks (12) are respectively arranged on two sides of the racks (12), a first rotating shaft (14) is arranged on the one-way gears (13), the first rotating shaft (14) is rotatably mounted on a support (17), the support (17) is fixedly mounted on a base (16), a damping torsion spring (15) is sleeved on the outer side of the support (17), two ends of the damping torsion spring (15) are respectively mounted on the first rotating shaft (14) and the support (17), and the transmission directions of the one-way gears (13) on two sides of the racks (12) are different.
10. The leakage-proof test device for the heating and ventilation pipeline according to claim 9, wherein the one-way gears (13) on both sides of the rack (12) are arranged in plurality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110426435.2A CN113125075A (en) | 2021-04-20 | 2021-04-20 | Leakage-proof testing device for heating and ventilation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110426435.2A CN113125075A (en) | 2021-04-20 | 2021-04-20 | Leakage-proof testing device for heating and ventilation pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113125075A true CN113125075A (en) | 2021-07-16 |
Family
ID=76778456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110426435.2A Pending CN113125075A (en) | 2021-04-20 | 2021-04-20 | Leakage-proof testing device for heating and ventilation pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113125075A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959652A (en) * | 2021-10-21 | 2022-01-21 | 中国石油大学胜利学院 | Leakage-proof testing device for heating, ventilating and refrigerating pipelines |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409726A (en) * | 2011-09-05 | 2012-04-11 | 深圳市鸿效科技有限公司 | Pressure stabilizing and laminating water supply equipment |
| CN204073933U (en) * | 2014-09-10 | 2015-01-07 | 台州市中凯实业有限公司 | Mixer |
| CN207112025U (en) * | 2017-08-23 | 2018-03-16 | 青州锦荣液压科技有限公司 | A kind of voltage stabilizing pilot operated compound relief valve |
| CN108502667A (en) * | 2018-03-18 | 2018-09-07 | 李翔 | A kind of protective device of elevator |
| CN109163863A (en) * | 2018-09-26 | 2019-01-08 | 王辉文 | The leakage proof tester of heating and ventilating pipeline |
| CN208488228U (en) * | 2018-06-27 | 2019-02-12 | 日丰企业（佛山）有限公司 | Pressure testing device for seal for pipe joints test |
| CN111255704A (en) * | 2018-11-30 | 2020-06-09 | 中国石油天然气集团有限公司 | Pump protection device and pump assembly |
| CN111306406A (en) * | 2018-12-11 | 2020-06-19 | 江苏福田电气有限公司 | Damping base for electronic equipment |
| CN211061338U (en) * | 2019-11-11 | 2020-07-21 | 山西省工业设备安装集团有限公司 | Heat supply pipeline pressure testing device |
| US20200256757A1 (en) * | 2019-02-07 | 2020-08-13 | Georg Fischer, LLC | Leak test system and method for thermoplastic piping |
| CN111616065A (en) * | 2020-06-19 | 2020-09-04 | 安徽绿保源养殖有限公司 | Liquid feed feeding device for pigs |
| CN112113025A (en) * | 2020-09-10 | 2020-12-22 | 广东博智林机器人有限公司 | Pipeline pressure valve and slurry conveying device |
-
2021
- 2021-04-20 CN CN202110426435.2A patent/CN113125075A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409726A (en) * | 2011-09-05 | 2012-04-11 | 深圳市鸿效科技有限公司 | Pressure stabilizing and laminating water supply equipment |
| CN204073933U (en) * | 2014-09-10 | 2015-01-07 | 台州市中凯实业有限公司 | Mixer |
| CN207112025U (en) * | 2017-08-23 | 2018-03-16 | 青州锦荣液压科技有限公司 | A kind of voltage stabilizing pilot operated compound relief valve |
| CN108502667A (en) * | 2018-03-18 | 2018-09-07 | 李翔 | A kind of protective device of elevator |
| CN208488228U (en) * | 2018-06-27 | 2019-02-12 | 日丰企业（佛山）有限公司 | Pressure testing device for seal for pipe joints test |
| CN109163863A (en) * | 2018-09-26 | 2019-01-08 | 王辉文 | The leakage proof tester of heating and ventilating pipeline |
| CN111255704A (en) * | 2018-11-30 | 2020-06-09 | 中国石油天然气集团有限公司 | Pump protection device and pump assembly |
| CN111306406A (en) * | 2018-12-11 | 2020-06-19 | 江苏福田电气有限公司 | Damping base for electronic equipment |
| US20200256757A1 (en) * | 2019-02-07 | 2020-08-13 | Georg Fischer, LLC | Leak test system and method for thermoplastic piping |
| CN211061338U (en) * | 2019-11-11 | 2020-07-21 | 山西省工业设备安装集团有限公司 | Heat supply pipeline pressure testing device |
| CN111616065A (en) * | 2020-06-19 | 2020-09-04 | 安徽绿保源养殖有限公司 | Liquid feed feeding device for pigs |
| CN112113025A (en) * | 2020-09-10 | 2020-12-22 | 广东博智林机器人有限公司 | Pipeline pressure valve and slurry conveying device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959652A (en) * | 2021-10-21 | 2022-01-21 | 中国石油大学胜利学院 | Leakage-proof testing device for heating, ventilating and refrigerating pipelines |
| CN113959652B (en) * | 2021-10-21 | 2023-06-23 | 中国石油大学胜利学院 | Leak protection testing arrangement of pipeline for heating ventilation refrigeration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113125075A (en) | Leakage-proof testing device for heating and ventilation pipeline | |
| KR20120079467A (en) | Circular final trimming saw having direct drive | |
| JPH07194956A (en) | Device and equipment for mixing viscous or fluid product and method of using device of this kind | |
| CN211561674U (en) | Fire-fighting equipment with remove fire extinguishing function | |
| CN114293622A (en) | Secondary water supply equipment with function of quantitatively disinfecting according to water flow | |
| CN113577609A (en) | Mixing device for compressed air foam fire extinguishing system | |
| CN108591438A (en) | A kind of experiment gear-box cooling system | |
| CN217219986U (en) | Fire monitor multipurpose base | |
| CN214946415U (en) | Double-valve-plug electric regulating valve | |
| CN113757571B (en) | Simple buffer tank and application thereof | |
| CN213160559U (en) | Cement foaming agent filling device | |
| CN112460498B (en) | Real-time liquid monitoring device based on Internet of things | |
| CN211338985U (en) | Shipborne bacteria liquid spraying device | |
| JP2022151945A (en) | Pump facility, drainage machine field | |
| CN207654990U (en) | Gel preparation machine | |
| CN216343091U (en) | Heat dissipation type hydraulic oil storage device | |
| CN220780035U (en) | Foam extinguishing agent apparatus for producing | |
| CN215040229U (en) | Electric pipeline anti-corrosion adhesive tape winding equipment | |
| CN220026679U (en) | Spiral ribbon mixer | |
| CN219623004U (en) | Hydraulic support emulsified oil disperser | |
| CN220885550U (en) | Nylon 6 salt solution storage and mixing device | |
| CN210964826U (en) | Abundant agitating unit is used in chemistry | |
| CN215805482U (en) | Hydraulic speed regulating valve with safety device | |
| CN219463237U (en) | Quantity-control feeding device for preparing non-silicon defoamer special for PCB cleaning | |
| CN216778550U (en) | Defoaming agent preparation facilities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |