Photocatalytic membrane reaction device

Abstract

The utility model provides a photocatalytic membrane reaction device. The photocatalytic membrane reaction device is characterized in that a membrane reaction tank assembly is provided with a water inlet and a water outlet; the filter membrane is detachably mounted in the membrane reaction tank assembly, and a catalyst is arranged on the filter membrane; the two ends of the water conveying piece are connected with the water outlet and the water inlet respectively. And the peristaltic pump is connected with the water delivery piece. A reaction solution enters the membrane reaction tank assembly through the water conveying piece, the reaction solution moves in the membrane reaction tank assembly in the direction from the water inlet to the filter membrane to the water outlet through the peristaltic pump, and the filtered reaction solution is conveyed into the water conveying piece through the water outlet, then conveyed to the water inlet again and conveyed into the membrane reaction tank assembly for repeated reaction. The contact between the reaction solution and the catalyst in the membrane reaction tank assembly is enhanced, the filter membrane is detachably installed in the membrane reaction tank assembly, when the catalyst on the filter membrane is inactivated, the reaction can be continuously and efficiently carried out by replacing the filter membrane, and the reaction efficiency of the photocatalytic membrane is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and specifically relates to a photocatalytic film reaction device. Background Art

[0002] Photocatalytic technology mainly relies on semiconductor catalysts. The electronic structure of semiconductors is mainly composed of a series of full bands and empty bands filled with electrons. The full band is the valence band, the empty band is the conduction band, and the gap between the valence band and the conduction band is the forbidden band. When light radiates to the semiconductor catalyst, when it absorbs radiation energy greater than or equal to the width of its forbidden band, the valence band electrons of the semiconductor are excited to enter the conduction band, generating photogenerated electrons (e - ), and at the same time, the valence band forms photogenerated holes with oxidation ability (h + ). Photogenerated electrons and holes migrate to the semiconductor surface through diffusion and other means inside the semiconductor, and undergo redox reactions with molecules adsorbed on the surface.

[0003] The traditional suspended photocatalytic membrane separation technology is to suspend and disperse the photocatalyst in the reactor, complete the degradation of pollutants under light conditions, and intercept and recover the powder catalyst through the membrane separation process after the reaction. In the process of photocatalysis, insufficient reaction is prone to occur. After one catalysis, the solution needs to be taken out for testing. If the reaction is insufficient, the solution needs to be added back for reaction. The operation process is cumbersome and the reaction efficiency is low. Utility Model Content

[0004] The embodiment of the present application provides a photocatalytic film reaction device to solve the problems existing in the related technology. The technical solution is as follows:

[0005] The present application provides a photocatalytic film reaction device, comprising:

[0006] A membrane reaction tank assembly, wherein the membrane reaction tank assembly has a water inlet and a water outlet;

[0007] A filter membrane, the filter membrane is detachably installed in the membrane reaction tank assembly, the filter membrane is located between the water inlet and the water outlet, the filter membrane has a catalyst, and sewage is transported from the water inlet to the water outlet through the filter membrane;

[0008] A water delivery member, two ends of which are respectively connected to the water outlet and the water inlet;

[0009] A peristaltic pump is connected to the water delivery member so that the sewage in the membrane reaction tank assembly is transported from the water outlet to the water inlet through the water delivery member.

[0010] In one embodiment,

[0011] The membrane reaction tank assembly comprises:

[0012] A reaction tank body, wherein the water inlet is located on the upper side of the side wall of the reaction tank body;

[0013] A top cover, the top cover is detachably connected to the top of the reaction tank body;

[0014] The base is detachably mounted on the bottom of the reaction tank body, the filter membrane is detachably mounted on the base, and the water outlet is located on the side wall of the base.

[0015] In one embodiment,

[0016] The top cover is sleeved with a first rubber ring, and when the top cover is connected to the reaction pool body, the first rubber ring is located between the top cover and the reaction pool body;

[0017] A second rubber ring is sleeved on the base. When the base is connected to the reaction pool body, the second rubber ring is located between the base and the reaction pool body.

[0018] In one embodiment,

[0019] A floating ball is placed in the reaction tank body and is located on the surface of the sewage.

[0020] In one embodiment,

[0021] The membrane reaction tank assembly also includes:

[0022] a first fixing clip, the first fixing clip being mounted on the top cover;

[0023] A second fixing clip is mounted on the base.

[0024] In one embodiment,

[0025] The water delivery member comprises:

[0026] A first three-way valve, the first three-way valve is connected to the water inlet, and the first three-way valve has a water inlet end;

[0027] a second three-way valve, the second three-way valve being connected to the water outlet, and the second three-way valve having a water outlet end;

[0028] A hose, both ends of which are respectively connected to the first three-way valve and the second three-way valve, and the peristaltic pump is connected to the hose.

[0029] In one embodiment,

[0030] A water valve controller is installed on the water inlet end of the first three-way valve;

[0031] A water valve monitoring controller is installed on the water outlet end of the second three-way valve.

[0032] In one embodiment, it further includes:

[0033] A control component is electrically connected to the water valve controller, the water valve monitoring controller and the peristaltic pump.

[0034] In one embodiment, it further includes:

[0035] A xenon lamp is located directly above the reaction pool body.

[0036] In one embodiment,

[0037] The reaction tank body is connected with a condensed water pipe, and the condensed water pipe has a condensed water inlet and a condensed water outlet.

[0038] The photocatalytic film reaction device provided by the utility model has the following beneficial effects:

[0039] The reaction solution (sewage) enters the membrane reaction tank assembly through the water delivery part, and the reaction solution (sewage) moves in the membrane reaction tank assembly from the water inlet-filter membrane-water outlet through the peristaltic pump. The filtered reaction solution is delivered to the water delivery part through the water outlet and then delivered to the water inlet to the membrane reaction tank assembly for repeated reaction, which enhances the contact between the reaction solution and the catalyst in the membrane reaction tank assembly. After multiple filtrations, the solution is monitored through the water valve monitoring controller on the water delivery part. When the monitoring standard is met, it can be output and a new reaction solution (sewage) is input to achieve continuous treatment. The filter membrane is detachably installed in the membrane reaction tank assembly. When the catalyst on the filter membrane is deactivated, the reaction can be continuously and efficiently carried out by replacing the filter membrane, which improves the efficiency of the photocatalytic membrane reaction and avoids repeated operations due to incomplete reactions after one reaction, which increases costs.

[0040] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0042] Figure 1 It is a schematic diagram of the structure of the utility model;

[0043] Figure 2 for Figure 1 A schematic diagram of the structure of the middle base from a top view;

[0044] In the figure: 100, reaction device;

[0045] 110, membrane reaction tank assembly; 111, reaction tank body; 112, top cover; 113, base; 114, water inlet; 115, water outlet; 116, first rubber ring; 117, second rubber ring; 118, first fixing clip; 119, second fixing clip;

[0046] 120. Filter membrane;

[0047] 130, water delivery part; 131, first three-way valve; 132, second three-way valve; 133, hose; 134, water valve controller; 135, water valve monitoring controller; 136, float;

[0048] 140. Peristaltic pump;

[0049] 150. Xenon lamp;

[0050] 160. Condensate pipe; 161. Condensate inlet; 162. Condensate outlet. DETAILED DESCRIPTION

[0051] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0052] Figure 1-Figure 2 FIG. 1 shows a structural diagram of a photocatalytic film reaction device 100 according to an embodiment of the present application. Figure 1-Figure 2 As shown, the reaction device 100 may include:

[0053] A membrane reaction tank assembly 110, wherein the membrane reaction tank assembly 110 has a water inlet 114 and a water outlet 115;

[0054] A filter membrane 120, wherein the filter membrane 120 is detachably installed in the membrane reaction tank assembly 110, the filter membrane 120 is located between the water inlet 114 and the water outlet 115, the filter membrane 120 has a catalyst, and the sewage is transported from the water inlet 114 to the water outlet 115 through the filter membrane 120;

[0055] A water delivery member 130, two ends of which are respectively connected to the water outlet 115 and the water inlet 114;

[0056] The peristaltic pump 140 is connected to the water delivery member 130 so that the sewage in the membrane reaction tank assembly 110 is delivered from the water outlet 115 to the water inlet 114 through the water delivery member 130 .

[0057] In this embodiment, the reaction solution (sewage) enters the membrane reaction tank assembly 110 through the water delivery member 130, and the reaction solution (sewage) moves in the membrane reaction tank assembly 110 from the water inlet 114-filter membrane 120-water outlet 115 through the peristaltic pump 140. The filtered reaction solution is delivered to the water delivery member 130 through the water outlet 115 and then delivered to the water inlet 114 to the membrane reaction tank assembly 110 for repeated reaction, thereby enhancing the contact between the reaction solution and the catalyst in the membrane reaction tank assembly 110. After multiple filtrations, the solution is monitored by the water valve monitoring controller 135 on the water delivery member 130, and can be output after reaching the monitoring standard. The filter membrane 120 is detachably installed in the membrane reaction tank assembly 110. When the catalyst on the filter membrane 120 is deactivated, the filter membrane 120 can be replaced to achieve continuous and efficient reaction, thereby improving the efficiency of the photocatalytic membrane reaction, avoiding repeated operation of incomplete reaction after one reaction, and increasing costs. The sewage after the reaction is output through the water delivery member 130;

[0058] Further, the filter membrane 120 is a hydrophilic PTFE filter membrane 120, model SCEQ-CM0611, size 47 mm 0.45 μm;

[0059] Furthermore, the catalyst is fixed on the filter membrane 120, which reduces the pollution generated during the catalyst recovery process, greatly improves the catalyst recovery efficiency, and reduces the catalyst loss. The catalyst recovery process is simplified, and the catalyst can be directly recovered from the filter membrane 120, reducing the cost of catalyst recovery.

[0060] like Figure 1-Figure 2 As shown, in one embodiment,

[0061] The membrane reaction tank assembly 110 includes:

[0062] The reaction tank body 111, the water inlet 114 is located on the upper side of the side wall of the reaction tank body 111, and the reaction tank body 111 is made of cylindrical organic glass;

[0063] A top cover 112, which is detachably connected to the top of the reaction cell body 111 and is made of quartz glass with extremely strong light transmittance;

[0064] The base 113 is detachably mounted on the bottom of the reaction tank body 111 , the filter membrane 120 is detachably mounted on the base 113 , and the water outlet 115 is located on the side wall of the base 113 and is made of organic glass.

[0065] In this embodiment, the reaction tank body 111, the top cover 112 and the base 113 are all highly light-transmissive, ensuring that the light from the xenon lamp 150 can penetrate into the interior of the reaction tank body 111, so that the reaction solution can receive sufficient light for photocatalytic membrane reaction. At the same time, the filter membrane 120 can be detachably mounted on the base 113, and the base 113 is detachably connected to the reaction tank body 111, so that the filter membrane 120 can be easily disassembled and replaced.

[0066] like Figure 1-Figure 2 As shown, in one embodiment,

[0067] The top cover 112 is sleeved with a first rubber ring 116. When the top cover 112 is connected to the reaction cell body 111, the first rubber ring 116 is located between the top cover 112 and the reaction cell body 111.

[0068] The base 113 is sleeved with a second rubber ring 117 . When the base 113 is connected to the reaction cell body 111 , the second rubber ring 117 is located between the base 113 and the reaction cell body 111 .

[0069] In this embodiment, the first rubber ring 116 and the second rubber ring 117 are respectively located between the top cover 112 and the reaction cell body 111, and between the base 113 and the reaction cell body 111, to enhance air tightness and prevent leakage;

[0070] It should be noted that the base 113 has a certain groove inside, the filter membrane 120 is located inside the groove of the base 113 , the rubber ring is arranged outside the base 113 , and the water outlet 115 is connected to the groove on the base 113 .

[0071] In one embodiment,

[0072] A float ball 136 is placed in the reaction tank body 111 , and the float ball 136 is located on the surface of the sewage.

[0073] In this embodiment, the amount of the reaction solution (wastewater) in the reaction tank body 111 can be observed by observing the position of the float 136 inside the reaction tank body 111 .

[0074] like Figure 1-Figure 2 As shown, in one embodiment,

[0075] The membrane reaction tank assembly 110 further includes:

[0076] A first fixing clip 118 , wherein the first fixing clip 118 is mounted on the top cover 112 ;

[0077] A second fixing clip 119 , wherein the second fixing clip 119 is installed on the base 113 .

[0078] In this embodiment, the first fixing clip 118 and the second fixing clip 119 are fixing clips available on the market (such as snap-on fixing clips used on general sealed jars or pickle jars for tightening), which fix the base 113 and the top cover 112.

[0079] like Figure 1-Figure 2 As shown, in one embodiment,

[0080] The water delivery member 130 includes:

[0081] A first three-way valve 131, wherein the first three-way valve 131 is connected to the water inlet 114, and the first three-way valve 131 has a water inlet end;

[0082] A second three-way valve 132, wherein the second three-way valve 132 is connected to the water outlet 115, and the second three-way valve 132 has a water outlet end;

[0083] The hose 133 has two ends connected to the first three-way valve 131 and the second three-way valve 132 respectively, the peristaltic pump 140 is connected to the hose 133, the other end of the first three-way valve 131 is connected to the water inlet 114, and the other end is the water inlet end, the other end of the second three-way valve 132 is connected to the water outlet 115, and the other end is the water outlet end.

[0084] In this embodiment, the reaction solution (sewage) is added through the water inlet end of the first three-way valve 131 and transported to the reaction tank body 111 through the water inlet 114. After the reaction solution has passed through the filter membrane 120 for multiple times and reaches the reaction standard, it is output through the water outlet end of the second three-way valve 132. The peristaltic pump 140 acts on the hose 133 to realize water circulation.

[0085] like Figure 1-Figure 2 As shown, in one embodiment,

[0086] A water valve controller 134 is installed on the water inlet end of the first three-way valve 131;

[0087] A water valve monitoring controller 135 is installed on the water outlet end of the second three-way valve 132 .

[0088] In this embodiment, the reaction solution is circulated by the peristaltic pump 140 to carry out the photocatalytic membrane reaction, thereby improving the reaction efficiency; and the reaction water is circulated through the hose 133, and a water valve monitoring controller 135 is set on the second three-way valve 132. When the water quality meets the standard, the water valve can be opened to discharge, and when the water quality does not meet the standard, the water valve remains closed, and the sewage enters the cycle again for reaction; the water valve controller 134 controls the amount of sewage in the reaction tank by observing the float 136.

[0089] In one embodiment, it further includes:

[0090] A control component is electrically connected to the water valve controller 134 , the water valve monitoring controller 135 and the peristaltic pump 140 .

[0091] In this embodiment, the water valve controller 134, the water valve monitoring controller 135 and the peristaltic pump 140 are turned on and off by the control component. The water valve monitoring controller 135 has a monitor for monitoring the water quality of the water outlet 115, and the quality of the solution at the water outlet 115 is monitored in real time. When the water outlet 115 reaches the standard through the monitor, the water valve detection controller is started by the control component, so that the reaction solution after the reaction is output through the water outlet end of the second three-way valve 132;

[0092] The position of the float 136 in the reaction tank body 111 is monitored by the control component to determine the water level in the reaction tank body 111. When the water level is lower than the standard, the water valve controller 134 is started to add an appropriate amount of reaction solution through the water inlet end of the first three-way valve 131.

[0093] The control component is a common control module on the market, which can be a mobile phone, a computer or a remote control, etc., or a common physical controller.

[0094] like Figure 1 As shown, in one embodiment, it also includes:

[0095] The xenon lamp 150 is located directly above the reaction cell body 111 .

[0096] In this embodiment, the reaction cell body 111 is irradiated by a xenon lamp 150 to achieve photocatalytic reaction of the catalyst on the filter membrane 120 in the reaction cell body 111.

[0097] In one embodiment,

[0098] The reaction tank body 111 is connected to a condensed water pipe 160 , and the condensed water pipe 160 has a condensed water inlet 161 and a condensed water outlet 162 .

[0099] In this embodiment, the condensed water inlet 161 and the condensed water outlet 162 extend to the outside of the reaction pool body 111. Condensed water is provided through the condensed water inlet 161. The condensed water has the function of maintaining the temperature of the reaction device 100 and preventing the reaction pool body 111 from overheating.

[0100] The functions of each module in each device of the embodiment of the present utility model can refer to the corresponding description in the above method, which will not be repeated here.

[0101] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0102] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0103] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A photocatalytic film reaction device, characterized in that: include: A membrane reaction tank assembly, wherein the membrane reaction tank assembly has a water inlet and a water outlet; A filter membrane, the filter membrane is detachably installed in the membrane reaction tank assembly, the filter membrane is located between the water inlet and the water outlet, the filter membrane has a catalyst, and sewage is transported from the water inlet to the water outlet through the filter membrane; A water delivery member, two ends of which are respectively connected to the water outlet and the water inlet; A peristaltic pump is connected to the water delivery member so that the sewage in the membrane reaction tank assembly is transported from the water outlet to the water inlet through the water delivery member.

2. A photocatalytic film reaction device as claimed in claim 1, characterized in that: The membrane reaction tank assembly comprises: A reaction tank body, wherein the water inlet is located on the upper side of the side wall of the reaction tank body; A top cover, the top cover is detachably connected to the top of the reaction tank body; The base is detachably mounted on the bottom of the reaction tank body, the filter membrane is detachably mounted on the base, and the water outlet is located on the side wall of the base.

3. A photocatalytic film reaction device as claimed in claim 2, characterized in that: The top cover is sleeved with a first rubber ring, and when the top cover is connected to the reaction pool body, the first rubber ring is located between the top cover and the reaction pool body; A second rubber ring is sleeved on the base. When the base is connected to the reaction pool body, the second rubber ring is located between the base and the reaction pool body.

4. A photocatalytic film reaction device as claimed in claim 2, characterized in that: A floating ball is placed in the reaction tank body and is located on the surface of the sewage.

5. A photocatalytic film reaction device as claimed in claim 2, characterized in that: The membrane reaction tank assembly also includes: a first fixing clip, the first fixing clip being mounted on the top cover; A second fixing clip is mounted on the base.

6. A photocatalytic film reaction device as claimed in claim 2, characterized in that: The water delivery member comprises: A first three-way valve, the first three-way valve is connected to the water inlet, and the first three-way valve has a water inlet end; a second three-way valve, the second three-way valve being connected to the water outlet, and the second three-way valve having a water outlet end; A hose, both ends of which are respectively connected to the first three-way valve and the second three-way valve, and the peristaltic pump is connected to the hose.

7. A photocatalytic film reaction device as claimed in claim 6, characterized in that: A water valve controller is installed on the water inlet end of the first three-way valve; A water valve monitoring controller is installed on the water outlet end of the second three-way valve.

8. A photocatalytic film reaction device as claimed in claim 7, characterized in that: Also includes: A control component is electrically connected to the water valve controller, the water valve monitoring controller and the peristaltic pump.

9. A photocatalytic film reaction device as claimed in claim 2, characterized in that: Also includes: A xenon lamp is located directly above the reaction cell body.

10. A photocatalytic film reaction device as claimed in claim 2, characterized in that: The reaction tank body is connected with a condensed water pipe, and the condensed water pipe has a condensed water inlet and a condensed water outlet.

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