Scale cleaning system for gas distributor

Abstract

The utility model discloses a gas distributor scaling cleaning system, which relates to the technical field of biological fermentation, and comprises a configuration tank, a fermentation tank, a gas distributor, a cleaning liquid inlet pipe and a cleaning liquid return pipe, the configuration tank is used for accommodating cleaning liquid, the configuration tank is provided with a cleaning liquid outlet and a cleaning liquid return port, the gas distributor is arranged in the fermentation tank, and the gas distributor is arranged in the fermentation tank. The gas distributor is provided with a gas inlet, one end of the cleaning liquid inlet pipe is communicated with the cleaning liquid outlet, the other end of the cleaning liquid inlet pipe is communicated with the gas inlet, the cleaning liquid inlet pipe conveys cleaning liquid in the preparation tank to the gas distributor, one end of the cleaning liquid return pipe is communicated with the cleaning liquid return port, and the other end of the cleaning liquid return pipe is communicated with the liquid outlet of the fermentation tank. And the cleaning liquid return pipe conveys the cleaning liquid in the tank cavity of the fermentation tank to the preparation tank. According to the system, the gas distributor in the fermentation tank is cleaned, the gas-liquid mass transfer effect can be enhanced, the pressure drop at the gas distributor is reduced, the energy consumption of a compressor connected with the gas distributor is reduced, and the effects of saving energy and improving efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of biological fermentation, in particular to a fouling cleaning system for a gas distributor. Background Art

[0002] Today, the biological fermentation technology is relatively mature. Biological cells or bacteria are cultured by means of fermentation, and biochemical drugs, beverages, fuels, etc. are produced through the metabolic mechanisms of the cells or bacteria themselves. During the fermentation process, carbon sources need to be supplemented during the growth process of metabolites. Specifically, a gas distributor is used to provide gaseous carbon sources for the strains.

[0003] Due to the fact that the fermentation environment has a certain pressure, when the gas volume fluctuates or production stops, the nutrient substances of the culture and the protein substances produced by the dead bacteria will flow back into the gas distributor, respectively resulting in the formation of inorganic salt fouling and protein fouling in the gas distributor, causing blockage in the gas distributor, which urgently needs to be solved. Summary of the Utility Model

[0004] This application provides a fouling cleaning system for a gas distributor, which solves the technical problem of fouling of the gas distributor in the biological fermentation process in the prior art.

[0005] This application provides a fouling cleaning system for a gas distributor, including a configuration tank, a fermentation tank, a gas distributor, a cleaning liquid inlet pipe, and a cleaning liquid return pipe. The configuration tank is used to hold the cleaning liquid, and the cleaning liquid includes but is not limited to acid liquid and alkali liquid. The configuration tank is provided with a cleaning liquid outlet and a cleaning liquid return port. The fermentation tank is spaced from the configuration tank. The fermentation tank is provided with a liquid outlet. The gas distributor is installed in the fermentation tank. The gas distributor is provided with an air inlet and an air outlet communicated with the air inlet. The air outlet is communicated with the cavity of the fermentation tank. One end of the cleaning liquid inlet pipe is communicated with the cleaning liquid outlet, and the other end of the cleaning liquid inlet pipe is communicated with the air inlet. The cleaning liquid inlet pipe is used to transport the cleaning liquid in the configuration tank to the gas distributor. One end of the cleaning liquid return pipe is communicated with the cleaning liquid return port, and the other end of the cleaning liquid return pipe is communicated with the liquid outlet. The cleaning liquid return pipe is used to transport the cleaning liquid in the cavity of the fermentation tank to the configuration tank.

[0006] In some embodiments, the gas distributor is connected with a gas supply pipeline at the air inlet, and the end of the cleaning liquid inlet pipe far from the cleaning liquid outlet is communicated with the gas supply pipeline.

[0007] In some embodiments, the fouling cleaning system for a gas distributor includes:

[0008] A low point drain pipeline, one end of which is communicated with the lowest position of the gas supply pipeline, and the other end is a drain port. A first regulating valve is installed on the low point drain pipeline.

[0009] In some embodiments, the fouling cleaning system for a gas distributor includes:

[0010] The ceramic membrane module is provided with a liquid inlet, a concentrated liquid outlet and a clarified liquid outlet. The liquid inlet is communicated with the liquid outlet, and the concentrated liquid outlet is communicated with the liquid return port of the fermentation tank;

[0011] Wherein, one end of the cleaning liquid return pipe far away from the cleaning liquid return port is communicated with the concentrated liquid outlet.

[0012] In some embodiments, the liquid inlet and the liquid outlet are communicated through a mash inlet pipe, and a second regulating valve and a first water pump are installed on the mash inlet pipe;

[0013] The concentrated liquid outlet and the liquid return port are communicated through a mash return pipe, and a third regulating valve is installed on the mash return pipe.

[0014] In some embodiments, the gas distributor fouling cleaning system includes:

[0015] The membrane normal washing pipeline, one end of which is communicated with the liquid inlet and the other end is communicated with the cleaning liquid outlet. A fourth regulating valve is installed on the membrane normal washing pipeline, and the membrane normal washing pipeline is used for conveying the cleaning liquid to the liquid inlet;

[0016] The membrane backwashing pipeline is communicated with the clarified liquid outlet, the cleaning liquid outlet and the cleaning liquid return port. A plurality of regulating valves are installed on the membrane backwashing pipeline, and the membrane backwashing pipeline is used for enabling the liquid to be conveyed between the clarified liquid outlet and the cleaning liquid outlet or between the clarified liquid outlet and the cleaning liquid return port.

[0017] In some embodiments, the ceramic membrane module is connected with a clarified liquid pipeline, and the clarified liquid pipeline is communicated with the clarified liquid outlet. A tenth regulating valve is installed on the clarified liquid pipeline.

[0018] In some embodiments, the configuration tank is connected with:

[0019] The water replenishing pipeline, which is connected with the water source, and the water replenishing pipeline is used for conveying the water of the water source to the configuration tank;

[0020] The cleaning agent adding pipeline, which is connected with the cleaning agent tank, and the cleaning agent adding pipeline is used for conveying the cleaning agent in the cleaning agent tank to the configuration tank;

[0021] Wherein, the cleaning liquid is composed of water or a mixture of water and a cleaning agent.

[0022] In some embodiments, the configuration tank is connected with:

[0023] The circulation pipeline, one end of which is communicated with the cleaning liquid outlet and the other end is communicated with the circulation liquid return port of the configuration tank. And the circulation pipeline is arranged outside the configuration tank. A sixth regulating valve is installed on the circulation pipeline, and the circulation pipeline is used for conveying the water and the cleaning agent in the configuration tank from the cleaning liquid outlet to the circulation liquid return port.

[0024] In some embodiments, the gas distributor fouling cleaning system includes:

[0025] The second water pump is installed at the cleaning liquid outlet.

[0026] The beneficial effects of this application are as follows: A gas distributor scaling cleaning system is provided, including a configuration tank, a fermentation tank, a gas distributor, a cleaning liquid inlet pipe, and a cleaning liquid return pipe. The cleaning liquid outlet of the configuration tank is connected to the air inlet of the gas distributor through the cleaning liquid inlet pipe. The gas distributor is located at the installation position in the fermentation tank. The liquid outlet of the fermentation tank is connected to the cleaning liquid return port of the configuration tank through the cleaning liquid return pipe. The cleaning liquid includes but is not limited to acid liquid and alkali liquid. By sending the acid liquid in the configuration tank to the gas distributor, the inorganic salt scale in the gas distributor can be cleaned. By sending the alkali liquid in the configuration tank to the gas distributor, the protein scale in the gas distributor can be cleaned. By sending ordinary water in the configuration tank to the gas distributor, the gas distributor can be rinsed. The inorganic salt scale and protein scale causing blockage in the gas distributor can be cleaned. The cleaning of the gas distributor can be completed without removing the gas distributor from the fermentation tank. After cleaning, the gas distributor can enhance the gas-liquid mass transfer effect during the biological fermentation process, reduce the pressure drop at the gas distributor, and reduce the energy consumption of the compressor connected to the gas distributor, achieving the effect of energy saving and efficiency improvement. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention.

[0028] Figure 1 It is a schematic structural diagram of a gas distributor scaling cleaning system provided by this application;

[0029] Figure 2 It is a schematic diagram of the flow direction of mash liquid and clear liquid between the fermentation tank and the ceramic membrane module;

[0030] Figure 3 It is a schematic diagram of the water and cleaning agent in the configuration tank being transported along the circulation pipeline;

[0031] Figure 4 It is a schematic diagram of the liquid flow direction when cleaning the gas distributor;

[0032] Figure 5 It is a schematic diagram of draining the residual cleaning liquid through the low point drain;

[0033] Figure 6 It is a schematic diagram of the ceramic membrane module being rinsed forward;

[0034] Figure 7 It is a schematic diagram of the ceramic membrane module being backwashed.

[0035] Attachment Icon Annotations: 1 - Configuration Tank, 11 - Cleaning Liquid Outlet, 111 - Second Water Pump, 12 - Cleaning Liquid Return Port, 13 - Make-up Water Pipeline, 14 - Cleaning Agent Addition Pipeline, 15 - Circulation Pipeline, 2 - Fermentation Tank, 21 - Liquid Outlet, 22 - Liquid Return Port, 3 - Gas Distributor, 31 - Air Inlet, 32 - Gas Supply Pipeline, 4 - Cleaning Liquid Inlet Pipe, 5 - Cleaning Liquid Return Pipe, 6 - Low Point Drain Pipeline, 61 - Drain Port, 7 - Ceramic Membrane Module, 71 - Liquid Inlet, 711 - Mash Liquid Inlet Pipe, 7111 - First Water Pump, 712 - Membrane Positive Flushing Pipeline, 72 - Concentrate Outlet, 721 - Mash Liquid Return Pipe, 73 - Clear Liquid Outlet, 731 - Membrane Backwashing Pipeline, 732 - Clear Liquid Pipeline, 801 - First Control Valve, 802 - Second Control Valve, 803 - Third Control Valve, 804 - Fourth Control Valve, 805 - Fifth Control Valve, 806 - Sixth Control Valve, 807 - Seventh Control Valve, 808 - Eighth Control Valve, 809 - Ninth Control Valve, 810 - Tenth Control Valve, 811 - Eleventh Control Valve, 812 - Twelfth Control Valve. Detailed Implementation Manner

[0036] Please refer to Figure 1 , this application provides a gas distributor fouling cleaning system, hereinafter referred to as this system, and the gas distributor 3 installed in the fermentation tank 2 is cleaned through this system. This system includes a configuration tank 1, a fermentation tank 2, a gas distributor 3, a cleaning liquid inlet pipe 4, and a cleaning liquid return pipe 5. The gas distributor 3 is located in the fermentation tank 2, and the gas distributor 3 is at the installation position of the gas distributor 3 in the fermentation tank 2. When applying this system, it is not necessary to remove the gas distributor from the fermentation tank 2.

[0037] As Figure 1 shown, the configuration tank 1 is provided with a cleaning liquid outlet 11 and a cleaning liquid return port 12. The cleaning liquid is contained in the configuration tank 1, the cleaning liquid is output from the cleaning liquid outlet 11, and the cleaning liquid returns to the configuration tank 1 through the cleaning liquid return port 12.

[0038] As Figure 1 shown, the fermentation tank 2 and the configuration tank 1 are spaced apart from each other. The gas distributor 3 is installed in the fermentation tank 2. The gas distributor 3 is provided with an air inlet 31 and a plurality of air outlets. The air outlets are communicated with the air inlet 31, and the air outlets are communicated with the tank cavity of the fermentation tank 2. When biological fermentation is carried out, gas enters the gas distributor 3 from the air inlet 31 and is distributed into the tank cavity of the fermentation tank 2 through the plurality of air outlets. The fermentation tank 2 is provided with a liquid outlet 21, and the liquid outlet 21 is communicated with the tank cavity of the fermentation tank 2. When the gas distributor 3 is cleaned, the cleaning liquid enters the gas distributor 3 from the air inlet 31, the cleaned cleaning liquid flows into the tank cavity of the fermentation tank 2 from the air outlet, and the liquid after cleaning the gas distributor 3 is output from the fermentation tank 2 through the liquid outlet 21.

[0039] As Figure 1As shown, one end of the cleaning liquid inlet pipe 4 is connected to the cleaning liquid outlet 11, and the other end of the cleaning liquid inlet pipe 4 is connected to the air inlet 31. The cleaning liquid in the configuration tank 1 is transported to the gas distributor 3 through the cleaning liquid inlet pipe 4. As Figure 1 shown, one end of the cleaning liquid return pipe 5 is connected to the cleaning liquid return port 12, and the other end of the cleaning liquid return pipe 5 is connected to the liquid outlet 21. The cleaning liquid in the cavity of the fermentation tank 2 is transported to the configuration tank 1 through the cleaning liquid return pipe 5.

[0040] The cleaning liquid includes but is not limited to acid liquid and alkali liquid. The cleaning liquid can also be ordinary water. Different cleaning liquids are used to clean the scale that causes blockage of the gas distributor 3. When cleaning the gas distributor, generally, hot water flushing, alkali washing, rinsing, and acid washing are carried out in sequence, and the type of cleaning liquid in the configuration tank 1 needs to be changed. Among them, by rinsing after alkali washing and before acid washing, it aims to remove the alkali liquid remaining in the system during the alkali washing step, and avoid reducing the pH value of the acid liquid due to the neutralization reaction when performing acid washing immediately after alkali washing, having the effect of maintaining the pH value of the acid liquid.

[0041] The acid liquid in the configuration tank 1 is sent to the gas distributor 3 through this system, so as to clean the inorganic salt scale in the gas distributor 3; the alkali liquid in the configuration tank 1 is sent to the gas distributor 3 through this system, so as to clean the protein scale in the gas distributor 3; the ordinary water in the configuration tank 1 is sent to the gas distributor 3 through this system, so as to flush the gas distributor 3. Figure 4 The arrows in show the flow direction of the cleaning liquid when cleaning the gas distributor 3. The inorganic salt scale and protein scale that cause blockage in the gas distributor 3 are effectively cleaned through this system.

[0042] Applying this system to clean the gas distributor, the gas distributor can be cleaned without removing it from the fermentation tank 2. Compared with the uncleaned gas distributor 3, the cleaned gas distributor 3 can enhance the gas-liquid mass transfer effect during the biological fermentation process, can reduce the pressure drop at the gas distributor 3, can reduce the energy consumption of the compressor connected to the gas distributor 3, and achieves the effect of energy saving and efficiency improvement.

[0043] In some embodiments, please refer to Figure 1 , this system includes a second water pump 111. The second water pump 111 is installed at the cleaning liquid outlet 11 to provide the pumping force for the liquid to output from the cleaning liquid outlet 11.

[0044] In some embodiments, please refer to Figure 1, a gas distributor 3 is connected to a gas supply pipeline 32 at an air inlet 31, and one end of a cleaning liquid inlet pipe 4 far from a cleaning liquid outlet 11 communicates with the gas supply pipeline 32. The gas supply pipeline 32 is a pipeline originally connected to the gas distributor 3. In this way, by connecting the cleaning liquid inlet pipe 4 to the gas supply pipeline 32, the communication between the cleaning liquid inlet pipe 4 and the air inlet 31 of the gas distributor 3 can be achieved without disassembling and assembling the pipeline at the air inlet 31 of the gas distributor 3, reducing the workload of disassembly and assembly.

[0045] Please refer to Figure 1 , a ninth regulating valve 809 is installed on the gas supply pipeline 32. When cleaning the gas distributor 3, the ninth regulating valve 809 is in an open state.

[0046] Please refer to Figure 1 , a twelfth regulating valve 812 is also installed on the gas supply pipeline 32. The cleaning liquid inlet pipe 4 is connected to the first point of the gas supply pipeline 32. In the direction of the gas supply pipeline 32, the first point is located between the twelfth regulating valve 812 and the ninth regulating valve 809, and the ninth regulating valve 809 is relatively closer to the gas distributor 3. When cleaning the gas distributor 3, the twelfth regulating valve 812 needs to be adjusted to a closed state.

[0047] In some embodiments, please refer to Figure 1 , the system includes a low point drain pipeline 6. One end of the low point drain pipeline 6 communicates with the lowest position of the gas supply pipeline 32, and the other end of the low point drain pipeline 6 is a drain port 61. A first regulating valve 801 is installed on the low point drain pipeline 6. When the cleaning of the gas distributor 3 is completed, finally, the residual cleaning liquid needs to be drained completely. Please refer to Figure 5 , open the first regulating valve 801, and under the action of gravity, the residual cleaning liquid automatically enters the low point drain pipeline 6, and the residual cleaning liquid is discharged from the drain port 61.

[0048] In some embodiments, please refer to Figure 1 , the system includes a ceramic membrane module 7. The ceramic membrane module 7 belongs to the existing structure of a biological fermentation device. The ceramic membrane module 7 is provided with a liquid inlet 71, a concentrated liquid outlet 72, and a clarified liquid outlet 73. The liquid inlet 71, the concentrated liquid outlet 72, and the clarified liquid outlet 73 are the existing structures of the ceramic membrane module 7. Liquid enters the ceramic membrane module 7 from the liquid inlet 71, and the entering liquid is separated by the ceramic membrane. After the liquid is separated, it is divided into concentrated liquid and clarified liquid. The concentrated liquid is discharged from the concentrated liquid outlet 72, and the clarified liquid is discharged from the clarified liquid outlet 73. As Figure 1 shown, it is defined that the liquid inlet 71 communicates with the liquid outlet 21, and it is defined that the concentrated liquid outlet 72 communicates with the liquid return port 22 of the fermentation tank 2. Among them, one end of the cleaning liquid return pipe 5 far from the cleaning liquid return port 12 communicates with the concentrated liquid outlet 72. Please refer to Figure 4, the cleaning liquid after cleaning the gas distributor 3 is output from the liquid outlet 21 of the fermentation tank 2, enters the liquid inlet 71 of the ceramic membrane module 7 through a pipeline, then is sent to the cleaning liquid return pipe 5 through the concentrated liquid outlet 72 of the ceramic membrane module 7, and finally returns to the configuration tank 1.

[0049] Please refer to Figure 1 , an eleventh regulating valve 811 is installed on the cleaning liquid return pipe 5. The on-off of the cleaning liquid return pipe 5 is controlled through the eleventh regulating valve 811, and the medium flow rate of the cleaning liquid return pipe 5 can also be adjusted.

[0050] In some embodiments, please refer to Figure 1 , the liquid inlet 71 and the liquid outlet 21 are connected through a mash inlet pipe 711, and the concentrated liquid outlet 72 and the liquid return port 22 are connected through a mash return pipe 721. The mash inlet pipe 711 and the mash return pipe 721 are existing structures of the biological fermentation device. A second regulating valve 802 and a first water pump 7111 are installed on the mash inlet pipe 711. The pumping force for the liquid to flow along the mash inlet pipe 711 is provided through the first water pump 7111. The on-off and the medium flow rate of the mash inlet pipe 711 are controlled through the second regulating valve 802. A third regulating valve 803 is installed on the mash return pipe 721. The on-off and the medium flow rate of the mash return pipe 721 are adjusted through the third regulating valve 803.

[0051] During biological fermentation, please refer to Figure 2 , the mash in the fermentation tank 2 enters the ceramic membrane module 7 through the mash inlet pipe 711. The mash is separated into two parts by the ceramic membrane module 7, namely, the concentrated liquid containing a large amount of bacteria and the clear liquid containing metabolites. The concentrated liquid returns to the fermentation tank 2 through the mash return pipe 721.

[0052] When cleaning the gas distributor 3, the cleaning liquid after cleaning enters the ceramic membrane module 7 through the mash inlet pipe 711, then is sent to the cleaning liquid return pipe 5 through the concentrated liquid outlet 72 of the ceramic membrane module 7, and finally returns to the configuration tank 1.

[0053] This solution utilizes the mash inlet pipe 711 for the transportation of the cleaning liquid, reduces the length of the cleaning liquid return pipe 5, and simplifies the spatial layout of the cleaning liquid return pipe 5.

[0054] Please refer to Figure 2 , the ceramic membrane module 7 is connected with a clear liquid pipeline 732. The clear liquid pipeline 732 is communicated with the clear liquid outlet 73 of the ceramic membrane module 7. The clear liquid containing metabolites is discharged through the clear liquid pipeline 732. A tenth regulating valve 810 is installed on the clear liquid pipeline 732. The on-off of the clear liquid pipeline 732 is controlled through the tenth regulating valve 810.

[0055] In some embodiments, please refer to Figure 1, this system includes a membrane forward flushing pipeline 712. One end of the membrane forward flushing pipeline 712 is connected to the liquid inlet 71, and the other end is connected to the cleaning liquid outlet 11. A fourth regulating valve 804 is installed on the membrane forward flushing pipeline 712. The on / off and medium flow rate of the membrane forward flushing pipeline 712 are controlled by the fourth regulating valve 804, and the cleaning liquid is transported to the liquid inlet 71 through the membrane forward flushing pipeline 712. Please refer to Figure 1 , this system includes a membrane backwashing pipeline 731. The membrane backwashing pipeline 731 is connected to the clear liquid outlet 73, the cleaning liquid outlet 11, and the cleaning liquid return port 12. The membrane backwashing pipeline 731 has three ports, and any two of the three ports are connected to each other. The first port of the membrane backwashing pipeline 731 is connected to the clear liquid outlet 73, the second port is connected to the cleaning liquid outlet 11, and the third port is connected to the cleaning liquid return port 12. A plurality of regulating valves are installed on the membrane backwashing pipeline 731, and the plurality of regulating valves include a fifth regulating valve 805, a sixth regulating valve 806, and a seventh regulating valve 807. Figure 1 The circulating pipeline 15 in

[0056] Please refer to Figure 1 , the membrane forward flushing pipeline 712 is connected to the cleaning liquid inlet pipe 4, so as to realize the connection between the membrane forward flushing pipeline 712 and the cleaning liquid outlet 11. An eighth regulating valve 808 is installed on the cleaning liquid inlet pipe 4. In the flow direction of the cleaning liquid inlet pipe 4, the eighth regulating valve 808 is arranged after the membrane forward flushing pipeline 712. When performing forward flushing, the eighth regulating valve 808 is in a closed state.

[0057] Figure 6 The arrow in shows the liquid flow direction when the ceramic membrane module 7 is forward flushed. The cleaning water in the configuration tank 1 enters the membrane forward flushing pipeline 712 through the cleaning liquid outlet 11, the cleaning water enters the ceramic membrane module 7 through the liquid inlet 71, the ceramic membrane in the ceramic membrane module 7 is forward flushed, and the washed cleaning water enters the membrane backwashing pipeline 731 from the clear liquid outlet 73 and finally returns to the configuration tank 1.

[0058] Figure 7 The arrow in shows the liquid flow direction when the ceramic membrane module 7 is backwashed. The cleaning water in the configuration tank 1 enters the membrane backwashing pipeline 731 through the cleaning liquid outlet 11, the cleaning water enters the ceramic membrane module 7 through the clear liquid outlet 73, the ceramic membrane in the ceramic membrane module 7 is backwashed, and the washed cleaning water enters the cleaning liquid return pipe 5 from the concentrated liquid outlet 72 and finally returns to the configuration tank 1.

[0059] In some embodiments, the configuration tank 1 is connected with a water replenishing pipeline 13 and a cleaning agent adding pipeline 14. The water replenishing pipeline 13 is connected with a water source and is used for conveying the water from the water source to the configuration tank 1. The cleaning agent adding pipeline 14 is connected with a cleaning agent tank and is used for conveying the cleaning agent in the cleaning agent tank to the configuration tank 1. Generally, the gas distributor is sequentially subjected to hot water rinsing, caustic washing, rinsing and pickling. The water added through the water replenishing pipeline 13 during rinsing or rinsing is used as the cleaning liquid; please refer to Figure 3 , during caustic washing, the water added through the water replenishing pipeline 13 and the caustic solution added through the cleaning agent adding pipeline 14 are mixed to form the cleaning liquid. During pickling, the water added through the water replenishing pipeline 13 and the acid solution added through the cleaning agent adding pipeline 14 are mixed to form the cleaning liquid. The caustic solution and the acid solution belong to the cleaning agent in the cleaning agent tank.

[0060] Among them, during caustic washing and pickling, by controlling the inflow of the water replenishing pipeline 13 and the cleaning agent adding pipeline 14, the pH value of the cleaning liquid can be controlled, and the concentration of the acid solution or the caustic solution therein can be controlled. In some embodiments, a 3% concentration caustic solution is selected for caustic washing, and a 3% concentration acid solution is used for pickling. The acid solution can be citric acid.

[0061] In some embodiments, please refer to Figure 1 , the configuration tank 1 is connected with a circulation pipeline 15. One end of the circulation pipeline 15 is communicated with the cleaning liquid outlet 11, and the other end of the circulation pipeline 15 is communicated with the circulation liquid return port of the configuration tank 1. And the circulation pipeline 15 is arranged outside the configuration tank 1. A sixth regulating valve 806 is installed on the circulation pipeline 15. The circulation pipeline 15 is used for conveying the water and the cleaning agent in the configuration tank 1 from the cleaning liquid outlet 11 to the circulation liquid return port. When the water and the cleaning agent are mixed to form the cleaning liquid, the water and the cleaning agent are moved through the circulation pipeline 15, so that the water and the cleaning agent are circulated outside the configuration tank 1, which not only improves the mixing degree of the water and the cleaning agent, but also the configuration tank 1 has the function of heating the solution in the tank, and the temperature of the water and the cleaning agent in the configuration tank 1 is made uniform, which is beneficial to uniform heating.

[0062] Please refer to Figure 1 , part of the pipelines of the circulation pipeline 15 and the membrane backwashing pipeline 731 are repeatedly arranged. In the scheme with both the circulation pipeline 15 and the membrane backwashing pipeline 731, the circulation pipeline 15 and the membrane backwashing pipeline 731 can be combined and arranged to form the pipeline layout in Figure 1 .

[0063] Here, the state of the regulating valve in Figures 2 to 7 is described.

[0064] Figure 2It is a schematic diagram of the flow direction of mash liquid and clear liquid between the fermentation tank 2 and the ceramic membrane module 7. The second regulating valve 802, the fifth regulating valve 805, the tenth regulating valve 810 and the third regulating valve 803 are in the open state, and the remaining regulating valves are in the closed state.

[0065] Figure 3 It is a schematic diagram of the water and cleaning agent in the configuration tank 1 being transmitted along the circulation pipeline 15. The sixth regulating valve 806 and the seventh regulating valve 807 are in the open state, and the remaining regulating valves are in the closed state.

[0066] Figure 4 It is a schematic diagram of the liquid flow direction when cleaning the gas distributor 3. The eighth regulating valve 808, the ninth regulating valve 809, the second regulating valve 802 and the eleventh regulating valve 811 are in the open state, and the remaining regulating valves are in the closed state.

[0067] Figure 5 It is a schematic diagram of draining the residual cleaning liquid from the low point drain. The first regulating valve 801 and the ninth regulating valve 809 are in the open state, and the remaining regulating valves are in the closed state.

[0068] Figure 6 It is a schematic diagram of the normal flushing of the ceramic membrane module 7. The fourth regulating valve 804, the fifth regulating valve 805 and the seventh regulating valve 807 are in the open state, and the remaining regulating valves are in the closed state.

[0069] Figure 7 It is a schematic diagram of the backwashing of the ceramic membrane module 7. The sixth regulating valve 806, the fifth regulating valve 805 and the eleventh regulating valve 811 are in the open state, and the remaining regulating valves are in the closed state.

[0070] Above, the regulating valves in this application can be selected as butterfly valves, globe valves, etc.

[0071] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0072] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A gas distributor scaling cleaning system, characterized in that: include: A configuration tank is used to contain a cleaning liquid, wherein the cleaning liquid includes but is not limited to an acid solution and an alkali solution, and the configuration tank is provided with a cleaning liquid outlet and a cleaning liquid return port; A fermentation tank, spaced apart from the configuration tank, the fermentation tank being provided with a liquid outlet; A gas distributor is installed in the fermentation tank, the gas distributor is provided with an air inlet and an air outlet connected to the air inlet, and the air outlet is connected to the tank cavity of the fermentation tank; A cleaning liquid inlet pipe, one end of which is connected to the cleaning liquid outlet and the other end of which is connected to the gas inlet, the cleaning liquid inlet pipe being used to transport the cleaning liquid in the configuration tank to the gas distributor; A cleaning liquid return pipe has one end connected to the cleaning liquid return port and the other end connected to the liquid outlet. The cleaning liquid return pipe is used to transport the cleaning liquid in the tank cavity of the fermentation tank to the configuration tank.

2. The gas distributor fouling cleaning system according to claim 1, characterized in that: The gas distributor is connected to a gas supply pipeline at the gas inlet, and one end of the cleaning liquid inlet pipe away from the cleaning liquid outlet is connected to the gas supply pipeline.

3. The gas distributor fouling cleaning system according to claim 2, characterized in that: The gas distributor scaling cleaning system comprises: The low-point shower conduit has one end connected to the lowest position of the air supply conduit and the other end being a liquid discharge port. The low-point shower conduit is provided with a first regulating valve.

4. The gas distributor fouling cleaning system according to claim 1, characterized in that: The gas distributor scaling cleaning system comprises: The ceramic membrane assembly is provided with a liquid inlet, a concentrated liquid outlet and a clear liquid outlet, wherein the liquid inlet is connected to the liquid outlet, and the concentrated liquid outlet is connected to the liquid return port of the fermentation tank; Wherein, one end of the cleaning liquid return pipe away from the cleaning liquid return port is connected to the concentrated liquid outlet.

5. The gas distributor fouling cleaning system according to claim 4, characterized in that: The liquid inlet is connected to the liquid outlet through a mash inlet pipe, and the mash inlet pipe is equipped with a second regulating valve and a first water pump; The concentrated liquid outlet is connected to the liquid return port through a mash return pipe, and the mash return pipe is equipped with a third regulating valve.

6. The gas distributor fouling cleaning system according to claim 4, characterized in that: The gas distributor scaling cleaning system comprises: a membrane positive washing pipeline, one end of which is connected to the liquid inlet and the other end of which is connected to the cleaning liquid outlet, the membrane positive washing pipeline being provided with a fourth regulating valve, and the membrane positive washing pipeline being used to transport the cleaning liquid to the liquid inlet; The membrane backwash pipeline is connected with the clear liquid outlet, the cleaning liquid outlet and the cleaning liquid return port. The membrane backwash pipeline is installed with multiple regulating valves. The membrane backwash pipeline is used to transport liquid between the clear liquid outlet and the cleaning liquid outlet or between the clear liquid outlet and the cleaning liquid return port.

7. The gas distributor fouling cleaning system according to claim 4, characterized in that: The ceramic membrane assembly is connected with a clear liquid pipeline, the clear liquid pipeline is in communication with the clear liquid outlet, and a tenth regulating valve is installed on the clear liquid pipeline.

8. The gas distributor fouling cleaning system according to any one of claims 1 to 7, characterized in that: The configuration tank is connected with: A water supply pipeline connected to a water source, the water supply pipeline is used to transport water from the water source to the configuration tank; A cleaning agent adding pipeline, connected to the cleaning agent tank, and the cleaning agent adding pipeline is used to transport the cleaning agent in the cleaning agent tank to the configuration tank; The cleaning liquid is composed of water or a mixture of the water and the cleaning agent.

9. The gas distributor fouling cleaning system according to claim 8, characterized in that: The configuration tank is connected with: A circulation pipeline, one end of which is connected to the cleaning liquid outlet, and the other end of which is connected to the circulating liquid return port of the configuration tank, and the circulation pipeline is arranged outside the configuration tank, and the circulation pipeline is installed with a sixth regulating valve, and the circulation pipeline is used to transport the water and cleaning agent in the configuration tank from the cleaning liquid outlet to the circulating liquid return port.

10. The gas distributor fouling cleaning system according to any one of claims 1 to 7, characterized in that: The gas distributor scaling cleaning system comprises: The second water pump is installed at the cleaning liquid outlet.

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