CN116223327A - RO (reverse osmosis) membrane performance testing device and connection using method - Google Patents
RO (reverse osmosis) membrane performance testing device and connection using method Download PDFInfo
- Publication number
- CN116223327A CN116223327A CN202111482612.5A CN202111482612A CN116223327A CN 116223327 A CN116223327 A CN 116223327A CN 202111482612 A CN202111482612 A CN 202111482612A CN 116223327 A CN116223327 A CN 116223327A
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- membrane
- end socket
- water
- membrane element
- water producing
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- 239000012528 membrane Substances 0.000 title claims abstract description 73
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000001223 reverse osmosis Methods 0.000 title description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 238000011056 performance test Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 1
- 239000010865 sewage Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an RO membrane performance testing device. The RO membrane element detection device comprises a front end socket and a rear end socket which are arranged at two ends of a membrane element to be tested, wherein the front end socket and the rear end socket are respectively provided with a plurality of fastening screw holes, and the front end socket and the rear end socket are fixed at two ends of the membrane element through fastening components; the front seal head and the rear seal head are made of rigid materials, conical surfaces made of flexible rubber materials are arranged in the front seal head and the rear seal head, and grooves with the same outer diameter size as the end surfaces of the membrane elements are reserved on the conical surfaces; the front end socket is provided with a water inlet and a water producing port, wherein the part of the water producing port positioned at the inner side of the front end socket is connected with the membrane element central tube, the rear end socket is provided with a concentrated water port and a water producing port plug, and the water producing port plug is connected with the membrane element central tube. The invention also discloses a connection using method of the device. The device has the advantages of exquisite design, small volume, light weight, simple installation, simple operation and convenient carrying when in use.
Description
Technical Field
The invention belongs to the field of water treatment equipment, and relates to an RO membrane performance testing device and a connection using method.
Background
The reverse osmosis technology is widely applied to the field of water treatment, and a membrane element of a core component of the reverse osmosis technology is polluted by various pollutants in the use process, so that the membrane material is blocked or even damaged, and the problems of pressure difference rise, water yield reduction and the like of a system are caused. However, in the use process, the arrangement positions of the membrane elements are different, so that the membrane elements at different positions are polluted to different degrees, and in order to reduce the number of replacement and the replacement cost, each membrane element needs to be subjected to one-by-one performance test and screening, and the membrane element with poor performance is selected and the membrane element with excellent performance is reserved, so that the replacement cost is reduced. Traditional membrane performance detection device usually includes parts such as membrane shell, water pump, water tank, and equipment is bulky, is inconvenient for transportation.
Disclosure of Invention
In order to simply test the performance of a reverse osmosis membrane assembly, avoid the problems of excessive equipment, too large equipment, complex operation and the like, and have wider applicability, the invention aims to provide the RO membrane performance testing device and the connection using method, which are used for directly connecting the device to the water inlet side of field equipment, directly connecting a bypass from a high-pressure pump water outlet pipe of a system to introduce a water source during membrane element testing, saving a water tank and a water pump, and simultaneously, as the glass fiber reinforced plastic shell of the membrane element does not need water flow to pass through during the testing, the water flow only passes through the end face of the membrane, and therefore, after using the device, a membrane shell can be omitted, thereby the whole device is smaller and easier to use.
In order to solve the technical problems, the invention provides an RO membrane performance testing device which comprises a front end socket and a rear end socket which are arranged at two ends of a membrane element to be tested, wherein a plurality of fastening screw holes are respectively arranged outside the front end socket and the rear end socket, and the front end socket and the rear end socket are fixed at two ends of the membrane element through the fastening screw holes by using a fastening knob and a fastening screw rod; the front seal head and the rear seal head are made of rigid materials, the inside of the front seal head and the rear seal head is made of conical surfaces made of flexible rubber materials, and grooves with the same outer diameter size as the end faces of the membrane elements are reserved on the conical surfaces made of flexible rubber materials; the front end enclosure on be provided with water inlet and produce the mouth of a river, wherein produce the mouth of a river and be located the inboard part of front end enclosure and link to each other with the membrane element center tube, the rear end enclosure on be provided with dense mouth of a river and produce mouth of a river end cap, produce mouth of a river end cap and link to each other with the membrane element center tube.
According to the RO membrane performance testing device, the front end socket and the rear end socket are preferably made of metal, and the conical inner wall is provided with the limit annular groove with the outer diameter corresponding to that of the 8-inch RO membrane element.
The RO membrane performance testing device of the invention is characterized in that 4-8 fastening screw holes are reserved on the periphery of the end faces of the front end socket and the rear end socket.
The RO membrane performance testing device is characterized in that the fastening component is composed of a fastening screw hole, a fastening knob and a fastening screw rod, wherein the fastening knob and the fastening screw rod are made of metal materials.
In the RO membrane performance testing device, the water producing port and the water producing port plugs are preferably provided with O-shaped rings at the parts inserted into the central tube of the RO membrane element.
The RO membrane performance testing device is characterized in that a flowmeter, a pressure gauge and a valve are preferably arranged on the pressure-resistant pipeline connected with the water inlet, the concentrated water outlet and the water producing outlet.
Compared with the prior art, the invention has the following technical characteristics:
1) Unlike the traditional mode of using a membrane shell, the invention has the characteristics of exquisite design, small volume, light weight, simple installation, portability and the like;
2) The testing device can be connected to a bypass of the reverse osmosis system, which is added to the outlet of the high-pressure pump, so that a water tank and a water pump are avoided;
3) The testing device only uses the front and rear two sealing heads to be sleeved on the front and rear of the membrane element, and a membrane shell is not needed, and the sealing heads are lighter than the membrane shell, and have stronger applicability due to the adoption of standard sizes.
Drawings
FIG. 1 is a schematic view (split view) of an RO membrane performance test apparatus in an unassembled state according to the present invention;
FIG. 2 is a schematic structural view showing an assembled state of the RO membrane performance testing apparatus of the present invention.
1, a water inlet; 2. a water concentration port; 3. a water producing port; 4. a water producing port plug; 5. a front end enclosure; 6. a rear end enclosure; 7. fastening the screw hole; 8. fastening a knob; 9. and (5) fastening a screw.
Detailed Description
The invention will be further described with reference to specific examples and figures 1 to 2.
As shown in figure 1, the RO membrane performance testing device comprises a front sealing head 5, a rear sealing head 6, a water inlet 1, a concentrated water port 2, a water producing port 3, a water producing port plug 4, the front sealing head 5, the rear sealing head 6, a fastening screw hole 7, a fastening knob 8, a fastening screw 9 and an annular limiting groove 10.
When in use, the front end enclosure 5 and the rear end enclosure 6 are firstly arranged at two ends of a membrane element to be tested, and the part of the water producing port 3 positioned at the inner side of the front end enclosure 5 is inserted into a central tube of the membrane element; the water producing port plug 4 in the rear sealing head 6 is also inserted into the central tube of the membrane element, so that the water produced by the membrane element only flows out from the water producing port 3 during testing. O-shaped rings are arranged at the parts of the water producing port 3 and the water producing port plug 4, which are inserted into the central tube of the membrane element.
4 fastening screw holes 7 are respectively formed in the periphery of the front sealing head 5 and the periphery of the rear sealing head 6; the fastening knob 8 and the fastening screw 9 are used for fixing the two ends of the film element to be tested. The front seal head 5 and the rear seal head 6 are made of rigid materials, such as stainless steel, but the inner parts of the front seal head 5 and the rear seal head 6 are conical surfaces, and are made of flexible rubber, and annular limit grooves corresponding to the outer diameter of the end face of the 8-inch RO membrane element are reserved on the conical surfaces of the rubber materials, so that the sealing effect can be effectively achieved after the fastening knob 8 and the fastening screw 9 are fixed at the two ends of the membrane element.
After the front end enclosure 5 and the rear end enclosure 6 are installed, a bypass is led out from a water outlet pipeline of the on-site high-pressure pump, a pressure-resistant hose is used for connecting with a water inlet 1 of the front end enclosure, a valve, a pressure gauge and a flowmeter are installed on the pressure-resistant hose, a concentrated water port 2 is connected to a drainage canal through the pressure-resistant hose, the valve, the pressure gauge and the flowmeter are installed on the pressure-resistant hose, a water producing port 3 is connected to the drainage canal through the pressure-resistant hose, and the flowmeter is installed on the pressure-resistant hose.
And starting an on-site RO system, controlling the water inlet pressure to be 0.6-0.8 Mpa and the flow to be 4-5 t/h through valves on a connecting pipeline of a high-pressure pump frequency converter, a water inlet 1 and a water concentration port 2, and using a conductivity meter to test the conductivity of water discharged from a water production port 3 so as to realize performance test on a single membrane module.
In order to facilitate reading, the light bracket can be used for fixing the flowmeter and the valve which are arranged on the pipeline of the water inlet 1, the concentrated water port 2 and the water producing port 3 in practical application.
Claims (8)
1. The RO membrane performance testing device is characterized by comprising a front end socket and a rear end socket which are arranged at two ends of a membrane element to be tested, wherein the front end socket and the rear end socket are fixed at two ends of the membrane element to be tested through fastening components; the front seal head and the rear seal head are made of rigid materials, the inside of the front seal head and the rear seal head is made of conical surfaces made of flexible rubber materials, and grooves with the same outer diameter size as the end faces of the membrane elements are reserved on the conical surfaces made of flexible rubber materials; the front end enclosure is provided with a water inlet and a water producing port, wherein the part of the water producing port positioned at the inner side of the front end enclosure is connected with the membrane element central tube, the rear end enclosure is provided with a concentrated water port and a water producing port plug, and the water producing port plug is connected with the membrane element central tube.
2. The RO membrane performance testing device according to claim 1, wherein the front end enclosure and the rear end enclosure are made of metal, and a limit annular groove corresponding to the outer diameter of the 8-inch RO membrane element is reserved on the conical inner wall.
3. The RO membrane performance testing device according to claim 1, wherein 4-8 fastening screw holes are reserved on the periphery of the end faces of the front end socket and the rear end socket.
4. The RO membrane performance testing device according to claim 1, wherein the fastening means comprises a fastening screw hole, a fastening knob, and a fastening screw.
5. The RO membrane performance testing device of claim 1, wherein the tightening knob and tightening screw are metallic.
6. The RO membrane performance testing device according to claim 1, wherein the water producing port and the water producing tube plug have O-rings at the portions inserted into the RO membrane element center tube.
7. The RO membrane performance testing device according to claim 1, wherein the pressure-resistant pipes connected to the water inlet, the concentrate outlet and the water producing outlet are provided with a flowmeter, a pressure gauge and a valve.
8. A method of using the RO membrane performance test device of claim 1, comprising:
1) Firstly, fixedly mounting a front end socket and a rear end socket at two ends of a membrane element to be tested, and inserting a part of a water producing port positioned at the inner side of the front end socket into a central tube of the membrane element; the water producing pipe plug in the rear sealing head is also inserted into the central pipe of the membrane element, so that the water produced by the membrane element only flows out from the water producing port during testing;
2) A bypass is led out from a water outlet pipeline of a high-pressure pump of the RO system, the bypass is connected with a front seal head through a pressure-resistant hose, a valve, a pressure gauge and a flowmeter are arranged on the pressure-resistant hose, a concentrated water port is connected to a drainage canal or a sewage treatment field through the pressure-resistant hose, the valve, the pressure gauge and the flowmeter are arranged on the pressure-resistant hose, a water producing port is connected to the drainage canal through the pressure-resistant hose, and the flowmeter is arranged on the pressure-resistant hose;
3) And starting an on-site RO system, controlling the water inlet pressure to be 0.6-0.8 Mpa and the flow to be 4-5 t/h through valves on connecting pipelines of a high-pressure pump frequency converter, a water inlet and a concentrated water inlet, and using a conductivity meter to test the conductivity of water outlet of a water producing port so as to realize performance test on a single membrane module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111482612.5A CN116223327A (en) | 2021-12-06 | 2021-12-06 | RO (reverse osmosis) membrane performance testing device and connection using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111482612.5A CN116223327A (en) | 2021-12-06 | 2021-12-06 | RO (reverse osmosis) membrane performance testing device and connection using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116223327A true CN116223327A (en) | 2023-06-06 |
Family
ID=86587954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111482612.5A Pending CN116223327A (en) | 2021-12-06 | 2021-12-06 | RO (reverse osmosis) membrane performance testing device and connection using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116223327A (en) |
-
2021
- 2021-12-06 CN CN202111482612.5A patent/CN116223327A/en active Pending
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