TWM592436U - Film duct electrodialysis desalination system - Google Patents

Abstract

This creation is about a membrane tube electrodialysis desalination system, which mainly consists of a membrane tube group consisting of many membrane tubes. The membrane tube includes an inner layer and a conductive layer, and a conductive layer is provided on the outer edge of the inner layer to make the isolation network It is a porous insulation material and has insulating properties. Isolate the isolation net between each of the membrane tube groups, and put each membrane tube group and the isolation net into a filter tank, so that each membrane tube group is connected to a DC power source. Two poles, so that two adjacent membrane tube groups input positive voltage and negative voltage of different polarities respectively, a water tank is connected to the water inlet of the filter tank by a pump, and a water outlet is provided at the other end of the filter tank for desalination The water can be exported; by this, it can effectively carry out the desalination operation of the salt in the water, so as to achieve the true recovery and reuse of water resources, effectively save the waste of water resources, and add more practical efficiency characteristics in its overall implementation and use.

Description

Membrane tube electrodialysis desalination system

This creation is about a membrane tube electrodialysis desalination system, especially refers to a kind of effective desalination operation of salt in water, so as to achieve the actual recovery and reuse of water resources, effectively save the waste of water resources, and use it in its entirety Innovative designer of membrane tube electrodialysis desalination system with more practical features.

According to the changes in the environment, water resources are becoming scarce and floods and droughts are frequent today. How to avoid the abuse of water resources and effectively improve the efficiency of water resource utilization is an important issue at present.

In addition, due to the evolution of modern science and technology and the rapid development of various industries, various sources of pollution exist in the environment around people’s lives, and the common sources of water pollution are mainly from three aspects: one is industrial wastewater; the other is domestic sewage; the third is Agricultural wastewater. The waste water discharged by various industrial enterprises during the production process includes process water, cooling water for machinery and equipment, flue gas washing water, equipment and site cleaning water, and production waste liquid. The impurities contained in the waste water include production waste liquid, residue and Some raw materials, semi-finished products, by-products, etc., have extremely complex ingredients, and the content of pollutants varies greatly.

In the industrial process, a large amount of waste water will be generated, such as aqueous salt solutions. Such salt solutions are not suitable for direct consumption in household or industrial applications, making the use of waste water, seawater or semi-alkaline water flow deionization [commonly known as Desalination], that becomes the necessary technical means to treat this type of aqueous salt solution as qualified water.

Among them, Capacitive deionization [Capacitive de-ionization, CDI] is a technology that should be applied to remove salt in water. It can be widely used in seawater desalination, industrial and agricultural water desalination, and domestic water desalination [塩酸、酸酸Wait]. Capacitive deionization is mainly to force ions to move to oppositely charged electrodes by applying an electrostatic field. Because electrodes made of carbon materials, such as activated carbon and carbon aerogel, not only have good conductivity, but also have a large ratio The surface area, if two pieces of activated carbon material are used as the positive and negative stages of the capacitor and a certain DC voltage is applied between the two electrodes, an electrostatic field will be formed, and the carbon electrode placed in the electrostatic field will produce a very high level at the interface between it and the electrolyte solution. Strong electric double layer, the electric double layer can absorb and store a large amount of electrolyte ions, and store a certain amount of energy; and once the electric field is removed, the attracted ions are released into the bulk solution, the concentration in the solution increases, this process also Known as "charging enrichment", this principle has also been widely used in supercapacitors and capacitive blue energy generation [capacitive blue energy].

Capacitive deionization technology is different from the conventional energy-consuming, high-pressure traditional deionization of membrane separation, electrodialysis and other procedures. It does not require membrane installation, but adopts a channel structure in the water treatment process, and can be used at low pressure [ 0.2~0.3 MPa] and low voltage [0.8~1.2 V] operation, the system is also reversible, without the problem of secondary pollutants. In the treatment of semi-salt water or water bodies with lower salinity, capacitive deionization technology has particularly significant energy advantages [> 1 kWh/m3]. The energy used in the charging and adsorption process can be recovered during the discharge and desorption process, which further reduces energy consumption requirements. Capacitance deionization technology has been evaluated by the Organization for Economic Cooperation and Development (OECD) as the most forward-looking technology to replace the existing energy-consuming desalination technology.

The reason is that, in view of this, the creators have maintained rich design development and practical production experience in the related industries for many years, and then studied and improved the existing technical means to provide a membrane tube electrodialysis desalination system in order to achieve better practical value. Purpose person.

The main purpose of this creation is to provide a membrane tube electrodialysis desalination system, which can effectively desalinate the salt in the water, so as to achieve the actual recovery and reuse of water resources, effectively save the waste of water resources, and implement it in its entirety Those who use it with more practical functional properties.

The main purpose and efficacy of the membrane electrodialysis desalination system in this creation are achieved by the following specific technical means:

Its main parts include membrane tube group and isolation net; among them:

The membrane tube group is composed of a plurality of membrane tubes. The membrane tube includes an inner layer and a conductive layer, and a conductive layer is provided on the outer edge of the inner layer;

The isolation net is a porous isolation material, and the isolation net has insulating properties, so that the isolation net is isolated between the membrane tube groups;

A plurality of the membrane tube groups are provided, and the isolation net is provided between each of the membrane tube groups, and each membrane tube group and the isolation net are placed in a filter tank so that each membrane tube group is connected to a DC power source The two poles, so that two adjacent membrane tube groups are respectively input with positive and negative voltages of different polarities, a water tank is connected to the water inlet of one end of the filter tank by a pump, and a water outlet is provided at the other end of the filter tank Export the desalted water.

In this preferred embodiment of the membrane tube electrodialysis desalination system, the inner layer is made of polyester yarn and metal yarn.

In this preferred embodiment of the membrane tube electrodialysis desalination system, the metal yarn is either stainless steel wire or copper wire.

In this preferred embodiment of the membrane tube electrodialysis desalination system, the conductive layer is made of polyvinylidene difluoride (PVDF) and conductive material.

In the preferred embodiment of the membrane tube electrodialysis desalination system, the conductive material is any one of graphene, carbon and graphite.

A preferred embodiment of the membrane tube electrodialysis desalination system of the present invention, wherein the membrane tube is a hollow membrane tube, and a plurality of nanofiltration holes are formed through the membrane tube to simultaneously use each membrane of each membrane tube group Each filter hole of the tube filters impurities contained in the waste water.

According to a preferred embodiment of the membrane tube electrodialysis desalination system, the diameter of the filter hole is 0.05 μm to 0.5 μm.

A preferred embodiment of the membrane tube electrodialysis desalination system of the present invention, wherein each of the membrane tube groups together with the isolation net is formed into a curtain shape or a cylindrical shape.

A preferred embodiment of the membrane tube electrodialysis desalination system of the present invention, wherein each membrane tube group is further provided with a positive conductive material flow unit and a negative conductive material flow unit, respectively, so that the two adjacent membrane tube groups are respectively connected to The positive electrode conductive material flow unit and the negative electrode conductive material flow unit of different polarities are connected, so that the positive electrode conductive material flow unit conducts tiny conductive particles with positive electricity to the inside of each film tube of the connected film tube group, Let the negative electrode conductive material flow unit conduct the negatively charged minute conductive particles to the inside of each membrane tube of the connected membrane tube set, so as to improve its deionization efficiency.

In the preferred embodiment of the membrane tube electrodialysis desalination system, the conductive particles are any of graphene, carbon and graphite.

In order to provide a more complete and clear disclosure of the technical content used in this creation, the purpose of the creation and the effect achieved, please refer to the detailed description below, and please refer to the drawings and figures disclosed:

First of all, please refer to the schematic diagram of the three-dimensional exploded structure of the creation in the first picture. This creation mainly includes the membrane tube group (1) and the isolation network (2); among them:

For the membrane tube set (1), please refer to the schematic diagram of the three-dimensional structure of the membrane tube created in the second picture. It is composed of many ultrafiltration [UF] grade hollow membrane tubes (11). The membrane tube (11) Including inner layer (111) and conductive layer (112), the inner layer (111) is made of polyester yarn mixed with metal yarn, the metal yarn is stainless steel wire, copper wire, etc. A conductive layer (112) is provided on the outer edge of the layer (111). The conductive layer (112) can be made of polyvinylidene difluoride (PVDF) mixed with a conductive material, the conductive material is graphene, carbon, graphite Either kind, in addition, a plurality of nano filter holes (113) are formed through the membrane tube (11), and the diameter of the filter holes (113) is about 0.05 μm to 0.5 μm.

The isolation net (2) is a porous isolation material, and the isolation net (2) has insulating properties, so that the isolation net (2) is isolated between the membrane tube groups (1).

In this way, please refer to the schematic diagram of the three-dimensional combination of the creation of the third picture and the sectional schematic diagram of the combination of the creation of the fourth picture, you can set a plurality of the membrane tube set (1), and in each The isolation network (2) is arranged between the membrane tube groups (1), and the membrane tube groups (1) are separated by the isolation network (2) so that there is no phase between the membrane tube groups (1) In contact, each of the membrane tube groups (1) together with the separation net (2) is formed into a sheet shape or rolled into a cylindrical shape.

In order to make this work in use, please refer to the fifth figure for the combined structure of the use state of this work as shown in the schematic diagram. Each membrane tube group (1) together with the isolation net (2) is placed in a filter tank (3) And make each membrane tube group (1) be connected to the two poles of the DC power supply (4) respectively, so that two adjacent membrane tube groups (1) respectively input positive voltage and negative voltage of different polarities, and each membrane tube group (1) Because the room is separated by the isolation net (2), each membrane tube group (1) will not be short-circuited, and then a water tank (5) is connected to the filter tank (3) by a pump (51) A water inlet (31) at one end and a water outlet (32) at the other end of the filter tank (3) are provided for leading out the desalted water.

Please also refer to the sixth figure to show the schematic diagram of the use state action of this creation. When the wastewater to be treated in the water tank (5) is introduced into the filter tank (3) from the water inlet (31) by the pump (51) ), the wastewater to be treated will flow out through the membrane tube group (1) to the water outlet (32) of the filter tank (3). During the process of the wastewater passing through the membrane tube group (1), Two adjacent membrane tube groups (1) are respectively input with positive and negative voltages of different polarities, so that the positive and negative ions in the wastewater can be adsorbed by the membrane tube groups (1) respectively, and the deionization can be desalted After the water is exported from the water outlet (32) of the filter tank (3); please also refer to the schematic diagram of the clean state of the creation of the seventh figure, when the membrane tube group (1) is attached When there are too many positive and negative ions, the DC power supply (4) can stop the power supply to each membrane tube group (1), so that the positive and negative ions can no longer attach to each membrane tube group (1) and pass through the water flow When the membrane tube group (1) is used, the positive and negative ions will be taken away to achieve the cleaning effect.

Moreover, since the membrane tube group (1) is composed of a plurality of hollow membrane tubes (11), the membrane tube (11) has a plurality of nano filter holes (113) on the surface thereof, so that waste water passes through each of the membrane tube groups (1) ) In the process, not only the positive and negative ions in the wastewater can be adsorbed by the membrane tube group (1), but also can be filtered by the membrane tube (11) of the membrane tube group (1). When the wastewater passes through each of the nanofiltration holes (113) on the surface of the membrane tube (11), impurities in the wastewater will be filtered by the nanofiltration holes (113) to obtain a cleaner water quality.

Please also refer to the eighth figure for another embodiment of the authoring state combination structure diagram and the ninth figure for another embodiment of the authoring state sectional structure diagram shown in the use state, which can also correspond to each of the membrane tube groups (1 ) Are respectively connected with a positive electrode conductive material flow unit (6) and a negative electrode conductive material flow unit (7), so that the two adjacent membrane tube groups (1) are respectively connected to the positive electrode conductive material flow units (6) and different polarities The negative electrode conductive material flow unit (7) is connected, so that the positive electrode conductive material flow unit (6) conducts a small conductive with positive electricity to the inside of each membrane tube (11) of the connected membrane tube group (1) Particles, allowing the negative electrode conductive material flow unit (7) to connect the inside of each membrane tube (11) of the connected membrane tube group (1) with tiny electrically conductive particles that are negatively charged, the electrically conductive particles can be graphene, carbon , Graphite, etc., so that when the wastewater passes through the membrane tube group (1), the positive and negative ions in the wastewater can be accelerated by the tiny conductive particles flowing inside the membrane tube group (1) The positive and negative charges are used for adsorption to improve the deionization efficiency, and the deionized and desalted water can be discharged from the water outlet (32) of the filter tank (3).

Based on the above, the use and implementation description of this creation shows that compared with the existing technical means, this creation can effectively desalinize the salt in the water, so as to achieve the actual recovery and reuse of water resources. It saves the waste of water resources, and has more practical efficiency characteristics in its overall implementation and use.

The foregoing embodiments or drawings do not limit the structure of this creation, and any appropriate changes or modifications of those with ordinary knowledge in the technical field should be deemed not to deviate from the patent scope of this creation.

In summary, this creative embodiment can achieve the expected use effect, and the specific structure disclosed by it has not only not been seen in similar products, nor has it been disclosed before the application, and has fully met the requirements and requirements of the Patent Law , I filed an application for a new type of patent in accordance with the law, and pleaded for the review and granted the patent.

(1): Membrane tube group

(11): Membrane tube

(111): inner layer

(112): conductive layer

(113): filter hole

(2): isolation network

(3): filter tank

(31): Water inlet

(32): Outlet

(4): DC power supply

(5): sink

(51): Pump

(6): positive electrode conductive material flow unit

(7): negative electrode conductive material flow unit

The first picture: the three-dimensional decomposition structure diagram of this creation

The second picture: the three-dimensional schematic diagram of the film tube of this creation

The third picture: schematic diagram of the three-dimensional combination structure of this creation

Figure 4: Schematic diagram of the combined sectional structure of this creation

Figure 5: Schematic diagram of the combined structure of the use status of this creation

Figure 6: Schematic diagram of the state of use of this creation

Figure 7: The clean state of this creation

Figure 8: Schematic diagram of the combined state of use of another embodiment of this creation

The ninth picture: another embodiment of the use of the state of the cross-sectional structural diagram

(1): Membrane tube group

(11): Membrane tube

(2): isolation network

Claims (10)

A membrane tube electrodialysis desalination system, which mainly includes a membrane tube group and an isolation net; among them: The membrane tube group is composed of a plurality of membrane tubes. The membrane tube includes an inner layer and a conductive layer, and a conductive layer is provided on the outer edge of the inner layer; The isolation net is a porous isolation material, and the isolation net has insulating properties, so that the isolation net is isolated between the membrane tube groups; A plurality of the membrane tube groups are provided, and the isolation net is provided between each of the membrane tube groups, and each membrane tube group and the isolation net are placed in a filter tank so that each membrane tube group is connected to a DC power source The two poles, so that two adjacent membrane tube groups are respectively input with positive and negative voltages of different polarities, a water tank is connected to the water inlet of one end of the filter tank by a pump, and a water outlet is provided at the other end of the filter tank Drain the desalted water. The membrane tube electrodialysis desalination system as described in item 1 of the patent application scope, wherein the inner layer is made of polyester yarn mixed with metal yarn. The membrane tube electrodialysis desalination system as described in item 2 of the patent application scope, wherein the metal yarn is either stainless steel wire or copper wire. The membrane tube electrodialysis desalination system as described in item 1 of the patent application scope, wherein the conductive layer is made of polyvinylidene difluoride (PVDF) mixed with conductive materials. As described in item 4 of the patent application, the membrane tube electrodialysis desalination system, wherein the conductive material is any one of graphene, carbon and graphite. The membrane tube electrodialysis desalination system as described in item 1 of the patent application scope, wherein the membrane tube is a hollow membrane tube, and a plurality of nanofiltration holes are formed through the membrane tube to simultaneously use each of the membrane tube groups Each filter hole of the membrane tube filters impurities contained in the waste water. The membrane tube electrodialysis desalination system as described in item 6 of the patent application scope, wherein the diameter of the filter hole is 0.05 μm to 0.5 μm. The membrane tube electrodialysis desalination system as described in item 1 of the scope of the patent application, wherein each of the membrane tube groups together with the isolation net is formed into a curtain shape or a cylindrical shape. The membrane tube electrodialysis desalination system as described in item 1 of the scope of patent application, wherein each membrane tube group is further provided with a positive electrode conductive material flow unit and a negative electrode conductive material flow unit, so that two adjacent membrane tube groups It is connected to the positive electrode conductive material flow unit and the negative electrode conductive material flow unit of different polarities, respectively, so that the positive electrode conductive material flow unit conducts the tiny conductive with positive electricity to the inside of each membrane tube of the connected membrane tube group The particles allow the negative electrode conductive material flow unit to conduct the minute conductive particles with negative charges to the inside of each membrane tube of the connected membrane tube group, so as to improve the deionization efficiency. The membrane tube electrodialysis desalination system as described in item 8 of the patent application range, wherein the conductive particles are any of graphene, carbon and graphite.

Images