CN108905628B - Control device based on direct oxygen enrichment of cellulose acetate membrane electrodialysis air - Google Patents
Control device based on direct oxygen enrichment of cellulose acetate membrane electrodialysis air Download PDFInfo
- Publication number
- CN108905628B CN108905628B CN201810695550.8A CN201810695550A CN108905628B CN 108905628 B CN108905628 B CN 108905628B CN 201810695550 A CN201810695550 A CN 201810695550A CN 108905628 B CN108905628 B CN 108905628B
- Authority
- CN
- China
- Prior art keywords
- oxygen
- box body
- air
- cellulose acetate
- positive plate
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/422—Electrodialysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
- B01D61/46—Apparatus therefor
Abstract
The invention relates to a control device for directly enriching oxygen in air based on cellulose acetate membrane electrodialysis.A partition plate is arranged in a container to divide the inner cavity of the container into an upper part and a lower part, an ultraviolet lamp tube is arranged on the lower surface of the partition plate, a box body is arranged in the inner cavity of the lower part of the container, a positive plate and a negative plate are arranged in the box body, a cellulose acetate oxygen-enriched membrane component is arranged between the positive plate and the negative plate, and an air storage tank, an air pump and a voltage; a cavity formed by the positive plate and the side wall of the adjacent box body is communicated with an air pump, the air pump is simultaneously communicated with an air storage tank, and a second one-way valve is arranged on a pipeline close to the box body; an oxygen sensor is arranged in the gas storage tank and communicated with an oxygen measuring instrument; the voltage device is communicated with the negative plate; a temperature sensor and a temperature sensor are arranged in a cavity formed by the positive plate and the side wall of the adjacent box body, and the temperature sensor are simultaneously communicated with the data collector; the positive plate is communicated with an ammeter; the invention has low energy consumption and high efficiency, and is widely suitable for various occasions needing to utilize air to directly enrich oxygen.
Description
Technical Field
The invention relates to a control device for directly enriching oxygen in air based on cellulose acetate membrane electrodialysis, and belongs to the technical field of direct collection and treatment of air and oxygen.
Background
Carbon emissions from thermal power plants are large, thus reducing thermal plant CO2The emission has important significance for alleviating the greenhouse effect. Oxygen-enriched combustion is used as a low-risk resource saving technology, pure oxygen is obtained mainly by using an air device, and mixed gas formed by the pure oxygen and a part of boiler flue gas replaces air to be used as an oxidant in coal combustion, so that CO of the flue gas after combustion is improved2In order to achieve a CO-rich content2And (4) capturing and reducing emission.
The membrane method oxygen enrichment based on electrodialysis is that charged oxygen molecules in air move under the action of an electric field, so that the oxygen concentration near a positive plate is increased, and the function of collecting oxygen is achieved; the oxygen enrichment technology based on the electrodialysis membrane method has the advantages of simple operation, low equipment investment, small occupied area, high efficiency and the like, so the membrane method oxygen enrichment technology becomes a hotspot for research and development.
Disclosure of Invention
The invention provides a control device for directly enriching oxygen in air based on cellulose acetate membrane electrodialysis, which has the characteristics of low energy consumption, high efficiency and the like and is widely applied to various occasions needing to utilize air to directly enrich oxygen.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a control device based on cellulose acetate membrane electrodialysis air direct oxygen enrichment comprises a container made of organic glass, a partition plate is arranged in the container to divide an inner cavity of the container into an upper part and a lower part, an ultraviolet lamp tube is arranged on the lower surface of the partition plate, a box body is arranged in the inner cavity of the lower part of the container, a positive plate and a negative plate are arranged in the box body, the top ends of the positive plate and the negative plate are fixedly connected with the top surface of the box body, and the bottom ends of the positive plate and the negative plate are;
a cellulose acetate oxygen-enriched membrane component is also arranged between the positive plate and the negative plate, the top end of the cellulose acetate oxygen-enriched membrane component is connected with the top surface of the box body, and the bottom end of the cellulose acetate oxygen-enriched membrane component is connected with the bottom surface of the box body;
the gas storage tank, the air pump and the voltage device are arranged in the upper part of the container;
a cavity formed by the positive plate and the side wall of the adjacent box body is communicated with an air pump through a pipeline, the air pump is simultaneously communicated with an air storage tank, and a second one-way valve is arranged on the pipeline close to the box body; arranging an oxygen sensor in the air storage tank, wherein the oxygen sensor is communicated with an oxygen meter;
the voltage device is communicated with the negative plate;
a temperature sensor and a temperature sensor are also arranged in a cavity formed by the positive plate and the side wall of the adjacent box body, and the temperature sensor are simultaneously communicated with the data collector through a transmission line; the data collector is communicated with the computer through a transmission line;
the positive plate is communicated with an ammeter;
as a further preferable mode of the present invention, the container is made of double layers of organic glass, an interlayer is formed between the two layers of organic glass, the container further comprises a constant temperature water tank filled with constant temperature water, the constant temperature water tank is communicated with the interlayer, and a third one-way valve is arranged between the constant temperature water tank and the interlayer;
in a further preferred embodiment of the present invention, the organic glass component is polymethyl methacrylate;
as a further preferred aspect of the present invention, the separator is a carbon fiber sheet; the positive plate and the negative plate are made of nail-shaped copper plates, a plurality of small holes are uniformly formed in the positive plate and the negative plate, and the distance between the positive plate and the negative plate is 9 cm; the box body is a PVC plastic box body made of polyvinyl chloride, and the wall thickness of the box body is 0.8 cm;
as a further preferred aspect of the present invention, a first check valve is further installed on the top of the tank body;
as a further preferred aspect of the present invention, the cellulose acetate oxygen-enriched membrane module is formed by stacking at least one cellulose acetate membrane;
as a further preferred aspect of the present invention, the cellulose acetate oxygen-enriched membrane module is formed by stacking three cellulose acetate membranes;
as a further preferred aspect of the present invention, the air pump power is 950w, and the air flow rate is 60L/min; the minimum scale of the ammeter is 0.01 ampere.
Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:
compared with other inorganic membrane oxygen enrichment, the cellulose acetate membrane component oxygen enrichment has the characteristics of strong selective permeability, good flexibility, low manufacturing cost and the like;
the oxygen is collected based on the electrodialysis technology, and compared with the traditional oxygen enrichment methods such as a high-pressure adsorption method and a cryogenic method, the oxygen collection method has the characteristics of simplicity in operation, high efficiency, small occupied area and the like;
the invention provides the power of ion movement by using the electric field, thereby being environment-friendly and free from pollution and noise;
the temperature and humidity of the air in the organic glass container are monitored by a computer, so that the voltage can be effectively controlled in time, and the energy is saved and can be controlled.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a control device for directly enriching oxygen in air based on cellulose acetate membrane electrodialysis according to a preferred embodiment of the invention.
In the figure: the device comprises a voltage device 1, a positive plate 2, a cellulose acetate oxygen-enriched membrane component 3, a negative plate 4, a container 5, an oxygen measuring instrument 6, a data collector 7, a computer 8, a humidity sensor 9, a temperature sensor 11 10, an oxygen sensor 12, a transmission line 13, a constant-temperature water tank 14, a gas storage tank 15, a first check valve 16, a second check valve 17, an air pump 18, a carbon fiber plate 19, an ultraviolet lamp 20, a third check valve 21, a box 22 and an ammeter 23.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, the present invention includes the following technical features: the device comprises a voltage device 1, a positive plate 2, a cellulose acetate oxygen-enriched membrane component 3, a negative plate 4, a container 5, an oxygen measuring instrument 6, a data collector 7, a computer 8, a humidity sensor 9, a temperature sensor 11 10, an oxygen sensor 12, a transmission line 13, a constant-temperature water tank 14, a gas storage tank 15, a first check valve 16, a second check valve 17, an air pump 18, a carbon fiber plate 19, an ultraviolet lamp 20, a third check valve 21, a box 22 and an ammeter 23.
The invention relates to a control device for directly enriching oxygen in air based on cellulose acetate membrane electrodialysis, which comprises a container made of organic glass, wherein a partition plate is distributed in the container to divide the inner cavity of the container into an upper part and a lower part, and an ultraviolet lamp tube is arranged on the lower surface of the partition plate, so that the air in the container is electrified during working, and the control effect of the control device is facilitated; a box body is arranged in a cavity in the lower part of the container, a positive plate and a negative plate are arranged in the box body, the top ends of the positive plate and the negative plate are fixedly connected with the top surface of the box body, and the bottom ends of the positive plate and the negative plate are fixedly connected with the bottom surface of the box body;
a cellulose acetate oxygen-enriched membrane component is also arranged between the positive plate and the negative plate, the top end of the cellulose acetate oxygen-enriched membrane component is connected with the top surface of the box body, and the bottom end of the cellulose acetate oxygen-enriched membrane component is connected with the bottom surface of the box body;
the gas storage tank, the air pump and the voltage device are arranged in the upper part of the container;
a cavity formed by the positive plate and the side wall of the adjacent box body is communicated with an air pump through a pipeline, the air pump is simultaneously communicated with an air storage tank, namely, the air pump extracts air near the positive plate into the air storage tank, and a second one-way valve is arranged on the pipeline close to the box body; arranging an oxygen sensor in the air storage tank, wherein the oxygen sensor is communicated with an oxygen meter;
the voltage device is communicated with the negative plate, namely the negative voltage of the negative plate is derived from the voltage device;
a temperature sensor and a temperature sensor are also arranged in a cavity formed by the positive plate and the side wall of the adjacent box body, and the temperature sensor are simultaneously communicated with the data collector through a transmission line; the data collector is communicated with the computer through a transmission line and transmits signals to the computer to be processed into a curve;
the positive plate is communicated with an ammeter;
as a further preferable mode of the present invention, the container is made of double-layer organic glass, an interlayer is formed between the two layers of organic glass, the container further includes a constant temperature water tank filled with constant temperature water, the constant temperature water tank is communicated with the interlayer, and a third one-way valve is arranged between the constant temperature water tank and the interlayer, the constant temperature water in the constant temperature water tank can be filled into the interlayer of the container after the third one-way valve is opened, so that the interior of the container maintains a relatively stable temperature, and the control effect of the device is facilitated;
in a further preferred embodiment of the present invention, the organic glass component is polymethyl methacrylate;
as a further preferred aspect of the present invention, the separator is a carbon fiber sheet; the positive plate and the negative plate are made of nail-shaped copper plates, a plurality of small holes are uniformly formed in the positive plate and the negative plate, and the distance between the positive plate and the negative plate is 9 cm; the box body is a PVC plastic box body made of polyvinyl chloride, and the wall thickness of the box body is 0.8 cm;
as a further preferred aspect of the present invention, a first check valve is further installed on the top of the tank body;
as a further preferred aspect of the present invention, the cellulose acetate oxygen-enriched membrane module is formed by stacking at least one cellulose acetate membrane;
as a further preferred aspect of the present invention, the cellulose acetate oxygen-enriched membrane module is formed by stacking three cellulose acetate membranes;
as a further preferred aspect of the present invention, the air pump power is 950w, and the air flow rate is 60L/min; the minimum scale of the ammeter is 0.01 ampere.
The control device has the following specific embodiments:
opening a third one-way valve to enable constant-temperature water in the constant-temperature water tank to flow into an interlayer of the container, opening the ultraviolet lamp tube at the moment, enabling air in the container to be negatively charged, closing the first one-way valve and the second one-way valve, opening the voltage device, and arranging a temperature sensor and a temperature sensor in a cavity formed by the positive plate and the side wall of the adjacent box body, wherein the temperature sensor and the temperature sensor transmit temperature and humidity information of the air in the container to the data collector;
because the voltage device is communicated with the negative plate, the negative plate obtains negative voltage from the voltage device, a high-strength electric field is generated around the negative plate, when the breakdown voltage of gas is reached, the air near the negative plate can be locally broken down to generate a corona discharge phenomenon, a corona field is generated around the negative plate, a large number of ionized ions are distributed in the corona field, oxygen molecules in the air in the container belong to electronegative gas, the ions in the air are captured to form negative ions, the negative ions move towards the positive plate under the action of the electric field, and the nitrogen ions and the oxygen ions are separated through the selective permeability of a cellulose acetate oxygen-enriched membrane component arranged between the positive plate and the negative plate, so that pure oxygen is obtained;
opening a second one-way valve, pumping gas near the positive plate into a gas storage tank through an air pump, and monitoring the oxygen concentration through an oxygen sensor arranged in the gas storage tank by an oxygen meter;
in the process, the electric field intensity is increased by a voltage device until the oxygen concentration reaches a desired value, and the electric field intensity is kept constant.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides a control device based on direct oxygen boosting of cellulose acetate membrane electrodialysis air which characterized in that: the container comprises a container made of organic glass, a partition board is arranged in the container to divide an inner cavity of the container into an upper part and a lower part, an ultraviolet lamp tube is arranged on the lower surface of the partition board, a box body is arranged in the inner cavity of the lower part of the container, a positive plate and a negative plate are arranged in the box body, the top ends of the positive plate and the negative plate are fixedly connected with the top surface of the box body, and the bottom ends of the positive plate and the negative;
a cellulose acetate oxygen-enriched membrane component is also arranged between the positive plate and the negative plate, the top end of the cellulose acetate oxygen-enriched membrane component is connected with the top surface of the box body, and the bottom end of the cellulose acetate oxygen-enriched membrane component is connected with the bottom surface of the box body;
the gas storage tank, the air pump and the voltage device are arranged in the upper part of the container;
a cavity formed by the positive plate and the side wall of the adjacent box body is communicated with an air pump through a pipeline, the air pump is simultaneously communicated with an air storage tank, and a second one-way valve is arranged on the pipeline close to the box body; arranging an oxygen sensor in the air storage tank, wherein the oxygen sensor is communicated with an oxygen meter;
the voltage device is communicated with the negative plate;
a temperature sensor and a humidity sensor are also arranged in a cavity formed by the positive plate and the side wall of the adjacent box body, and the temperature sensor and the humidity sensor are simultaneously communicated with the data collector through transmission lines; the data collector is communicated with the computer through a transmission line;
the positive plate is communicated with an ammeter;
the container is composed of two layers of organic glass, an interlayer is formed between the two layers of organic glass, the container also comprises a constant-temperature water tank, constant-temperature water is filled in the constant-temperature water tank, the constant-temperature water tank is communicated with the interlayer, and a third one-way valve is arranged between the constant-temperature water tank and the interlayer;
the clapboard is a carbon fiber plate; the positive plate and the negative plate are made of nail-shaped copper plates, a plurality of small holes are uniformly formed in the positive plate and the negative plate, and the distance between the positive plate and the negative plate is 9 cm; the box body is a PVC plastic box body made of polyvinyl chloride, and the wall thickness of the box body is 0.8 cm;
the top of the box body is also provided with a first one-way valve;
the cellulose acetate oxygen-enriched membrane component is formed by stacking at least one layer of cellulose acetate membrane;
because voltage device and negative plate intercommunication, the negative plate obtains the negative voltage by voltage device department, produce high strength electric field around the negative plate, when reaching gaseous breakdown voltage, the air near the negative plate can be punctured by local, produce corona discharge phenomenon, produce the corona field around the negative plate, distribute a large amount of ions of being ionized out in the corona field, and the oxygen molecule in the air belongs to electronegative gas in the container, the ion formation negative electricity ion in the capture air, move to the positive plate under the effect of electric field, the selectivity permeability through installing the cellulose acetate oxygen boosting membrane module between positive plate and negative plate, separate nitrogen ion and oxygen ion, thereby obtain pure oxygen.
2. A control apparatus for direct oxygen enrichment of air based on cellulose acetate membrane electrodialysis according to claim 1, characterized in that: the organic glass component is polymethyl methacrylate.
3. A control apparatus for direct oxygen enrichment of air based on cellulose acetate membrane electrodialysis according to claim 1, characterized in that: the cellulose acetate oxygen-enriched membrane component is formed by stacking three cellulose acetate membranes.
4. A control apparatus for direct oxygen enrichment of air based on cellulose acetate membrane electrodialysis according to claim 1, characterized in that: the power of the air pump is 950w, and the air flow is 60L/min; the minimum scale of the ammeter is 0.01 ampere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810695550.8A CN108905628B (en) | 2018-06-29 | 2018-06-29 | Control device based on direct oxygen enrichment of cellulose acetate membrane electrodialysis air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810695550.8A CN108905628B (en) | 2018-06-29 | 2018-06-29 | Control device based on direct oxygen enrichment of cellulose acetate membrane electrodialysis air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108905628A CN108905628A (en) | 2018-11-30 |
| CN108905628B true CN108905628B (en) | 2021-07-13 |
Family
ID=64423366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810695550.8A Active CN108905628B (en) | 2018-06-29 | 2018-06-29 | Control device based on direct oxygen enrichment of cellulose acetate membrane electrodialysis air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108905628B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220181A (en) * | 1997-06-05 | 1999-06-23 | 普拉塞尔技术有限公司 | Process for enriched combustion using solid electrolyte ionic conductor systems |
| CN2568673Y (en) * | 2002-09-23 | 2003-08-27 | 陈志文 | Electrically resolving pare oxygen generator |
| JP2007119284A (en) * | 2005-10-27 | 2007-05-17 | Matsushita Electric Ind Co Ltd | Feeding device for oxygen-enriched air |
| CN104083994A (en) * | 2014-07-21 | 2014-10-08 | 东南大学 | High-voltage discharge air dehumidification device based on electrodialysis |
| CN105226295A (en) * | 2015-09-10 | 2016-01-06 | 刘备之 | A kind of dielectric film based on air oxygen and method for producing oxygen through and obtained oxygen product thereof |
| CN107638815A (en) * | 2017-10-20 | 2018-01-30 | 大连欧科膜技术工程有限公司 | A kind of cellulose acetate anisotropic membrane and its application |
-
2018
- 2018-06-29 CN CN201810695550.8A patent/CN108905628B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220181A (en) * | 1997-06-05 | 1999-06-23 | 普拉塞尔技术有限公司 | Process for enriched combustion using solid electrolyte ionic conductor systems |
| CN2568673Y (en) * | 2002-09-23 | 2003-08-27 | 陈志文 | Electrically resolving pare oxygen generator |
| JP2007119284A (en) * | 2005-10-27 | 2007-05-17 | Matsushita Electric Ind Co Ltd | Feeding device for oxygen-enriched air |
| CN104083994A (en) * | 2014-07-21 | 2014-10-08 | 东南大学 | High-voltage discharge air dehumidification device based on electrodialysis |
| CN105226295A (en) * | 2015-09-10 | 2016-01-06 | 刘备之 | A kind of dielectric film based on air oxygen and method for producing oxygen through and obtained oxygen product thereof |
| CN107638815A (en) * | 2017-10-20 | 2018-01-30 | 大连欧科膜技术工程有限公司 | A kind of cellulose acetate anisotropic membrane and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108905628A (en) | 2018-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203284472U (en) | System for preparing high pure hydrogen by using pure water | |
| CN102652916B (en) | Device and process for regenerating active carbon | |
| CN114504925B (en) | System and method for directly capturing carbon dioxide through air by using clean energy | |
| CN111549355A (en) | Low cost CO electrolysis in solid oxide electrolytic cell2System and method for preparing synthesis gas | |
| CN204779512U (en) | Be suitable for middle -size and small -size marsh gas generating set's marsh gas purification treatment system | |
| CN108905628B (en) | Control device based on direct oxygen enrichment of cellulose acetate membrane electrodialysis air | |
| CN109913885A (en) | A kind of renewable ammonia (green ammonia) synthesis technology and apparatus system | |
| CN207243689U (en) | A kind of embrane method sewage disposal system of sludge near-zero release | |
| CN203370449U (en) | Membrane absorption device for absorbing gas-liquid transfer mass by carbon dioxide through amine strengthening method | |
| CN107842062B (en) | Photovoltaic electrolyte membrane integrated air water making device suitable for high-temperature low-humidity environment | |
| CN202792334U (en) | Cathode gas humidification device of methanol fuel cell test system | |
| CN206890716U (en) | A kind of dielectric film dehumidifier/air-conditioning system of integrated photovoltaic | |
| CN207091071U (en) | A kind of tubular type capacitive deionization desalter | |
| CN203890312U (en) | Pry tank type biogas purification device | |
| CN104946329A (en) | Biogas purification treatment system and process suitable for medium-and-small sized biogas generating sets | |
| CN105478015A (en) | Composite membrane assembly used for capturing water in flue gas and manufacture method thereof | |
| CN205372395U (en) | Multi -functional citylight | |
| CN204981794U (en) | Dry dewatering device of marsh gas | |
| CN205115613U (en) | Electrolysis trough for test of simulation industry brineelectrolysis operation | |
| CN202797153U (en) | Tail gas treatment device of methanol fuel cell test system | |
| CN203360587U (en) | System for preparing hydrogen and carrying out combined-type water supply and power supply | |
| CN206566714U (en) | A kind of biogas pressure-variable adsorption tower apparatus | |
| CN202803075U (en) | Oxygen-enriched engine combustion-supporting device with carbon film device | |
| CN214097401U (en) | Water quality on-line monitoring buoy station | |
| CN104817126A (en) | Solar and wind-powered brine evaporation device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |