CN110108419A - A kind of leakage detection device of the column-type film components of Highgrade integration - Google Patents
A kind of leakage detection device of the column-type film components of Highgrade integration Download PDFInfo
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- CN110108419A CN110108419A CN201910438603.2A CN201910438603A CN110108419A CN 110108419 A CN110108419 A CN 110108419A CN 201910438603 A CN201910438603 A CN 201910438603A CN 110108419 A CN110108419 A CN 110108419A
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- water supply
- constant pressure
- membrane module
- bracket
- column
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Links
- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 230000010354 integration Effects 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 239000012528 membrane Substances 0.000 claims abstract description 52
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000001771 impaired effect Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000010612 desalination reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of leakage detection devices of the column-type film components of Highgrade integration, including constant pressure water supply system and membrane module, two pack supports are provided with below membrane module, and two the same end of pack support be provided with locating rod, the upper surface of bracket is provided with the card slot module of even number set, the water outlet of membrane module is connected with quick assembling body, and the junction of quick assembling body and membrane module is provided with clip, quick assembling body top is provided with fast-assembling body hand valve, and the water inlet end of fast-assembling body hand valve is provided with ready-packaged joint female.The present invention stops leakage in the roof convenient for column-type film components hydraulic pressure; and it can integrate and hydraulic pressure is carried out to multiple membrane modules stop leakage in the roof test; and equipment, membrane module will not be caused impaired because of superpressure or misoperation because being equipped with constant pressure water supply system; solve column-type film components hydraulic pressure stop leakage in the roof membrane module carry it is inconvenient; the problems such as device of stopping leakage in the roof is simple and crude to cause membrane module, equipment impaired, protection liquid, water of stopping leakage in the roof leakage pollution ground.
Description
Technical field
The present invention relates to a kind of leakage detection devices of the column-type film components of Highgrade integration, belong to hyperfiltration membrane assembly production
Technical field.
Background technique
Film is as a kind of macromolecule chemical material, existing separation, concentration, purification and desalination function, but have it is efficient, energy saving,
The features such as environmental protection, molecular level filtering, are widely used in wastewater reusing treatment, sea water desalination, brackish water desalination, ultra-pure water etc.
Industry.Membrane technology is acknowledged as one of 21 century most important new technology.Membrane separation technique mainly includes micro-filtration, ultrafiltration, nanofiltration
And it is reverse osmosis.Pillar film membrane module is because space occupied is small, easy to operate, energy consumption is small, separative efficiency is high and effluent quality is good, logical
The advantages that amount is big, long service life, installation and removal facilitate, becomes one of the main product in ultrafiltration market, has very big city
Field prospect.
Column-type film components leak detection often takes easy single-point water pump to suppress detection and sampling Detection, and operator needs handle
The membrane module of sampling observation is carried at leak detection, and dismounting membrane module one by one is suppressed.In whole process, due to the original being simply equipped
Cause easily causes membrane module during suppressing, suppresses equipment and accessory damage, protects liquid and water leakage, pollute ground；Again because of nothing
It is special to suppress membrane module rack platform equipment, when membrane module is carried, suppresses, shifts, easily cause membrane module shell to scratch, shadow
Ring the total quality of product；And dismounting one by one is suppressed, and it is time-consuming and laborious, it causes manpower to waste, virtually improves product cost.
The disclosed patent and document for efficiently solving the column-type film components hydraulic pressure leak detection process above problem is not inquired at present.For this purpose, I
Propose a kind of leakage detection device of the column-type film components of Highgrade integration.
Summary of the invention
It the problem of the purpose of the present invention is for existing column-type film components hydraulic pressure leak detection process, designs a kind of high
Degree concentrate, be easily installed, column-type film components hydraulic pressure leakage detection apparatus easily and effectively.
The technical solution of the invention is as follows: a kind of leakage detection device of the column-type film components of Highgrade integration, including
Constant pressure water supply system and membrane module are provided with two pack supports below the membrane module, and the same end of bracket described in two groups is set
It is equipped with locating rod, the upper surface of the bracket is provided with the card slot module of even number set, and the water outlet of the membrane module is connected with
Quick assembling body, and the junction of the quick assembling body and membrane module is provided with clip, the setting of quick assembling body top
There is fast-assembling body hand valve, and the water inlet end of the fast-assembling body hand valve is provided with ready-packaged joint female, the pipeline of the quick assembling body
On be threaded with pressure gauge, the constant pressure water supply system includes constant pressure water supply system entrance hand valve, constant pressure water supply pump and constant pressure
The water outlet of water system control cabinet, the constant pressure water supply system control cabinet is connected with and ready-packaged joint female phase by hose
The quick coupling male connector matched, the constant pressure water supply system control cabinet are connected with constant pressure water supply by several groups hose and pump, and described
One end of constant pressure water supply pump is connected with circulating water supply case by water pipe, sets on the constant pressure water supply pump and the water pipe of circulating water supply case
It is equipped with constant pressure water supply system entrance hand valve.
Preferably, the lower end of the bracket and the lower end of circulating water supply case are provided with universal wheel.
Preferably, bracket positioning region is welded on the bottom side square bar of the bracket.
Preferably, the bracket is equipped with location hole, the distance between bracket is adjusted by locating rod, on the bracket holes
It is additionally provided with screw.
Preferably, the card slot module is soft, and the card slot module is one group according to even numbers, linear on bracket
Arrangement.
The technology of the present invention advantage is mainly reflected in: by using the present invention, being hunted leak convenient for column-type film components hydraulic pressure, and can be with
Multiple membrane modules carry out hydraulic pressure leak detection test to collection in pairs, and will not be because of superpressure or misoperation because being equipped with constant pressure water supply system
And cause equipment, membrane module impaired, it solves column-type film components hydraulic pressure leak detection membrane module and carries inconvenience, leakage detection apparatus is simple and crude to be caused
The problems such as membrane module, equipment are impaired, protection liquid, leak detection water leakage pollution ground, in addition, all connection of the present invention uses substantially
Clip connects, positioning filament fastly, and all connection and disassembly can be completed in " one slotting one pulls out, one detains, one twists ", and the present invention is because of design
Advantage facilitates transfer, uses, reduces the requirement to using area, bring better prospect of the application.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of column-type film components hydraulic pressure leakage detection apparatus of the present invention；
Fig. 2 is the structural schematic diagram of column-type film components；
Fig. 3 is the schematic diagram of quick assembling body.
In figure: 1, membrane module；2, clip；3, quick assembling body；4, pressure gauge；5, fast-assembling body hand valve；6, card slot module；7,
Bracket；8, universal wheel；9, locating rod；10, circulating water supply case；11, constant pressure water supply system entrance hand valve；12, constant pressure water supply pumps；
13, constant pressure water supply system control cabinet；14, bracket positioning region；15, ready-packaged joint female；16, quick coupling male connector.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.In the description of the present invention, it is to be understood that, term " on ", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "top", "bottom", "inner", "outside" is orientation based on the figure
Or positional relationship, it is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
The present invention relates to column-type film components hydraulic pressure leakage detection apparatus, as shown in Figure 1, including membrane module 1, clip 2, quick assembling
Body 3, pressure gauge 4, fast-assembling body hand valve 5, card slot module 6, bracket 7, universal wheel 8, locating rod 9, circulating water supply case 10, constant pressure water supply
System entry hand valve 11, constant pressure water supply pump 12, constant pressure water supply system control cabinet 13 do not mark in the 14(figure of bracket positioning region), fastly
Joint female 15 does not mark in quick coupling male connector 16(figure).Card slot module 6 is removably installed on 7 top of bracket
Cross bar, bracket positioning region 14 are installed on 7 bottom side square bar of bracket with welding manner, and universal wheel 8 is removably installed on branch
On 7 bottom side square bar of frame, constant pressure water supply system entrance hand valve 11 is removably installed at constant pressure water supply system inlet tube,
Pressure gauge 4 is removably mounted on the pipeline of 5 rear end of fast-assembling body hand valve, and ready-packaged joint female 15 is removably pacified
Loaded on 5 water inlet end of fast-assembling body hand valve, with hose first by 10 water outlet of circulating water supply case and 11 phase of constant pressure water supply system entrance hand valve
Even, then 13 water outlet of constant pressure water supply system control cabinet is connected with quick coupling male connector 16 with hose, by quick assembling body 3 and film
Component 1 is connected with clip 2, starts constant pressure water supply system, adjusts constant pressure water supply system pressure to required pressure is suppressed, by fast quick access
The ready-packaged joint female 15 that the head insertion of male connector 16 needs to suppress, waits membrane modules 1 to reach and suppresses pressure, close fast-assembling body hand valve 5, pull out
Quick coupling male connector 16 out, and observe whether 4 pressure of pressure gauge reaches pressure maintaining standard within the regulation dwell time, remaining membrane module
1 suppresses process successively carries out according to the above process.
Specifically, as shown in Figure 1, column-type film components hydraulic pressure leakage detection apparatus of the invention is divided into three parts, (circulation is supplied
Water tank 10, constant pressure water supply system, bracket 7), hydraulic pressure leakage detection apparatus can be transferred to according to the actual situation when in use to be used
The position of each device is adjusted in position, and universal wheel 8 is locked, and anti-locking apparatus movement causes damages.
Holder part includes two groups of main body racks 7, two pack support positioning region 14,20,6, one groups of locating rods of card slot module
9, five groups of quick assembling bodies, 3, five groups of clips, 2, eight groups of universal wheels 8 etc., card slot module 6 are removably installed on the top of bracket 7
Portion's cross bar, bracket positioning region 14 are installed on 7 bottom side square bar of bracket with welding manner, and universal wheel 8 is removably installed on
On 7 bottom side square bar of bracket, pressure gauge 4 is removably mounted on the pipeline of 5 rear end of fast-assembling body hand valve, and ready-packaged joint is female
First 15 are removably installed on 5 water inlet end of fast-assembling body hand valve.The universal wheel 8 of 7 bottom of bracket is for moving, the card slot at top
6 for fixing membrane module 1, the bracket positioning region 14 of side and locating rod 9 for positioning the distance between two pack supports 7, quickly
Assembly 3 is for quickly connecting membrane module 1 and constant pressure water supply system.Specific operating method is as follows:
(1) hydraulic pressure leakage detection apparatus bracket 7 can be transferred to place to be used according to the actual situation when in use, adjusts position
It sets；
(2) distance between two stands 7 is determined according to 1 size of membrane module of required detection, and passes through bracket positioning region 14 and positioning
Bar 9 reaches required distance to adjust the distance between two stands 7；
(3) locating rod 9 is locked using the bolt of bracket positioning region 14, prevents the distance of two stands 7 from changing again；
(4) after two stands 7 are suitable and locked apart from adjustment, after the integral position adjustment properly of two stands 7, universal wheel is locked
8, prevent bracket 7 from moving and causing damages again；
It (5) using carrier carrying membrane module 1 to bracket 7, and is that membrane module 1 is sequentially placed by starting with the locating rod of bracket 79
In the card slot module 6 of bracket 7；
(6) bracket 7 membrane module 1 place after the completion of, rotation membrane module 1 slowly, by the water inlet of membrane module 1 uniformly go to
7 upper lateral bar portion of bracket is vertical；
(7) dismantle 1 water inlet end cap of membrane module, by quick assembling body 3 and 1 water inlet clip 2 of membrane module be attached and on
Tightly.
Circulating water supply case 10: universal wheel 8 is removably mounted in 10 bottom of circulating water supply case, is supplied circulation with hose
10 water outlet of water tank is connected with constant pressure water supply system entrance hand valve 11.The specific operation method is as follows:
(1) hydraulic pressure leakage detection apparatus circulating water supply case 10 can be transferred to place to be used according to the actual situation when in use, adjusted
Whole good position；
(2) universal wheel 8 is locked, prevents circulating water supply case 10 from moving and causing damages again；
(3) suitable water or protection liquid are added into circulating water supply case 10.
Constant pressure water supply system includes: one group of constant pressure water supply system entrance hand valve 11, one group of constant pressure water supply pump 12, one group of constant pressure
Water system control cabinet 13, several groups quick coupling male connector 16 and hose.Constant pressure water supply system entrance hand valve 11 is with detachable side
Formula is mounted on constant pressure water supply system water inlet, with hose first by 10 water outlet of circulating water supply case and constant pressure water supply system entrance hand valve
11 are connected, then 13 water outlet of constant pressure water supply system control cabinet is connected with quick coupling male connector 16 with hose.Specific operation side
Method is as follows:
(1) hydraulic pressure leakage detection apparatus constant pressure water supply system can be transferred to place to be used according to the actual situation when in use, adjusted
Whole good position；
(2) universal wheel 8 is locked, prevents constant pressure water supply system device from moving and causing damages again；
(3) constant pressure water supply system entrance hand valve 11 is opened, after being full of water in constant pressure water supply system pipeline, starting constant pressure water supply pump
12；
(4) when constant pressure water supply pump 12 uses for the first time should air in the gas vent blowdown pump by pump, prevent pump idle running impaired；
(5) pressure is adjusted to by pressure needed for hydraulic pressure is hunted leak by constant pressure water supply system control cabinet 13；
(6) the ready-packaged joint female 15 for needing to suppress by the insertion of quick coupling male connector 16 of constant pressure water supply system；
(7) etc. membrane modules 1, which reach, suppresses pressure, closes hand valve, extracts quick coupling male connector 16, and observe 4 pressure of pressure gauge to be
It is no to reach pressure maintaining standard within the regulation dwell time；
(8) remaining membrane module 1 is suppressed process and is successively carried out according to the above process (6)-(7)；
(9) after the completion of all membrane modules 1 are suppressed and filled, constant pressure water supply pump 12 is shut down, closes and opens constant pressure water supply system entrance
Hand valve 11.
As shown in Fig. 2, being complete 1 product of column-type film components in figure, only 1 shape of column-type film components is shown in this figure
And structure feature, it is not related to specific size.
As shown in figure 3, being quick assembling body 3 in figure.Including one group of fast-assembling body hand valve 5, one piece of pressure gauge 4, one group and film
The ready-packaged joint female 15 of 1 water inlet of component docking, all components are connected through a screw thread, quick assembling body 3 can fast implement with
Membrane module 1, constant pressure water supply system are connected, and being reached with this reduces cost.
By being described in detail above and illustrating it is found that the present invention has the following advantages: by using the present invention, being convenient for pillar film group
The leak detection of 1 hydraulic pressure of part, and can integrate and hydraulic pressure leak detection test is carried out to multiple membrane modules 1, and will not because being equipped with constant pressure water supply system
It causes equipment, membrane module 1 impaired because of superpressure or misoperation, solves 1 hydraulic pressure of column-type film components leak detection membrane module and remove
The problems such as fortune is inconvenient, and leakage detection apparatus is simple and crude to cause membrane module 1, equipment impaired, protection liquid, leak detection water leakage pollution ground, in addition,
All connections of the present invention use clip substantially, connect fastly, positioning filament, and all companies can be completed in " one slotting one pulls out, one detains, one twists "
It connects and dismantles, and the present invention facilitates transfer, uses, reduce the requirement to using area because of design advantage.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of leakage detection device of the column-type film components of Highgrade integration, including constant pressure water supply system and membrane module (1),
It is characterized in that: being provided with two pack supports (7) below the membrane module (1), and the same end of bracket described in two groups (7) is provided with
Locating rod (9), the upper surface of the bracket (7) are provided with the card slot module (6) of even number set, the water outlet of the membrane module (1)
Mouth is connected with quick assembling body (3), and the junction of the quick assembling body (3) and membrane module (1) is provided with clip (2), institute
It states quick assembling body (3) top and is provided with fast-assembling body hand valve (5), and the water inlet end of the fast-assembling body hand valve (5) is provided with fast-assembling
Connector female (15) is threaded with pressure gauge (4) on the pipeline of the quick assembling body (3), the constant pressure water supply system packet
Constant pressure water supply system entrance hand valve (11), constant pressure water supply pump (12) and constant pressure water supply system control cabinet (13) are included, the constant pressure supplies
The water outlet of water system control cabinet (13) is connected with the quick coupling male connector to match with ready-packaged joint female (15) by hose
(16), the constant pressure water supply system control cabinet (13) is connected with constant pressure water supply pump (12), and the constant pressure by several groups hose
One end of water supply pump (12) is connected with circulating water supply case (10) by water pipe, the constant pressure water supply pump (12) and circulating water supply case
(10) constant pressure water supply system entrance hand valve (11) is provided on water pipe.
2. a kind of leakage detection device of column-type film components of Highgrade integration according to claim 1, it is characterised in that:
The lower end of the bracket (7) and the lower end of circulating water supply case (10) are provided with universal wheel (8).
3. a kind of leakage detection device of column-type film components of Highgrade integration according to claim 2, it is characterised in that
Bracket positioning region (14) are welded on the bottom side square bar of the bracket (7).
4. a kind of leakage detection device of column-type film components of Highgrade integration according to claim 3, it is characterised in that:
The bracket (7) is equipped with location hole, by the distance between locating rod (9) adjustment bracket (7), also sets up on the bracket holes
There is screw.
5. a kind of leakage detection device of column-type film components of Highgrade integration according to claim 1, it is characterised in that:
The card slot module (6) is soft, and the card slot module (6) is one group according to even numbers, the linear array on bracket (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910438603.2A CN110108419B (en) | 2019-05-24 | 2019-05-24 | Highly integrated column type membrane module leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910438603.2A CN110108419B (en) | 2019-05-24 | 2019-05-24 | Highly integrated column type membrane module leakage detection device |
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| Publication Number | Publication Date |
|---|---|
| CN110108419A true CN110108419A (en) | 2019-08-09 |
| CN110108419B CN110108419B (en) | 2024-02-09 |
Family
ID=67492065
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910438603.2A Active CN110108419B (en) | 2019-05-24 | 2019-05-24 | Highly integrated column type membrane module leakage detection device |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088600A (en) * | 2021-11-17 | 2022-02-25 | 北京赛诺膜技术有限公司 | Device and method for detecting performance of column type membrane assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201213A (en) * | 1990-03-21 | 1993-04-13 | Karl Henning | Pressure leak detection device |
| CN206399610U (en) * | 2017-01-24 | 2017-08-11 | 托伦斯精密机械（上海）有限公司 | Quick positive pressure leak detection device |
| CN206905973U (en) * | 2017-06-30 | 2018-01-19 | 云南城投碧水源膜科技有限责任公司 | Pillar film suppresses detection means |
| CN107817073A (en) * | 2017-11-30 | 2018-03-20 | 贝兹维仪器(苏州)有限公司 | A kind of mechanical sealing system safety testing device |
| CN210071256U (en) * | 2019-05-24 | 2020-02-14 | 苏州中色德源环保科技有限公司 | Highly integrated column type membrane module leakage detection device |
-
2019
- 2019-05-24 CN CN201910438603.2A patent/CN110108419B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201213A (en) * | 1990-03-21 | 1993-04-13 | Karl Henning | Pressure leak detection device |
| CN206399610U (en) * | 2017-01-24 | 2017-08-11 | 托伦斯精密机械（上海）有限公司 | Quick positive pressure leak detection device |
| CN206905973U (en) * | 2017-06-30 | 2018-01-19 | 云南城投碧水源膜科技有限责任公司 | Pillar film suppresses detection means |
| CN107817073A (en) * | 2017-11-30 | 2018-03-20 | 贝兹维仪器(苏州)有限公司 | A kind of mechanical sealing system safety testing device |
| CN210071256U (en) * | 2019-05-24 | 2020-02-14 | 苏州中色德源环保科技有限公司 | Highly integrated column type membrane module leakage detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088600A (en) * | 2021-11-17 | 2022-02-25 | 北京赛诺膜技术有限公司 | Device and method for detecting performance of column type membrane assembly |
| CN114088600B (en) * | 2021-11-17 | 2022-07-12 | 北京赛诺膜技术有限公司 | Device and method for detecting performance of column type membrane assembly |
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| CN110108419B (en) | 2024-02-09 |
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