CN110616133A - Low temperature filtration system with self-cleaning function - Google Patents

Low temperature filtration system with self-cleaning function Download PDF

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Publication number
CN110616133A
CN110616133A CN201910935817.0A CN201910935817A CN110616133A CN 110616133 A CN110616133 A CN 110616133A CN 201910935817 A CN201910935817 A CN 201910935817A CN 110616133 A CN110616133 A CN 110616133A
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CN
China
Prior art keywords
valve
pipeline
fine filter
tank
liquid
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.)
Pending
Application number
CN201910935817.0A
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Chinese (zh)
Inventor
许小尖
廖智明
钟汉荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Liren Liquor Co Ltd
Original Assignee
Guangdong Liren Liquor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Liren Liquor Co Ltd filed Critical Guangdong Liren Liquor Co Ltd
Priority to CN201910935817.0A priority Critical patent/CN110616133A/en
Publication of CN110616133A publication Critical patent/CN110616133A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12HPASTEURISATION, STERILISATION, PRESERVATION, PURIFICATION, CLARIFICATION OR AGEING OF ALCOHOLIC BEVERAGES; METHODS FOR ALTERING THE ALCOHOL CONTENT OF FERMENTED SOLUTIONS OR ALCOHOLIC BEVERAGES
    • C12H1/00Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages
    • C12H1/02Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material
    • C12H1/04Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material with the aid of ion-exchange material or inert clarification material, e.g. adsorption material
    • C12H1/0408Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material with the aid of ion-exchange material or inert clarification material, e.g. adsorption material with the aid of inorganic added material
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12HPASTEURISATION, STERILISATION, PRESERVATION, PURIFICATION, CLARIFICATION OR AGEING OF ALCOHOLIC BEVERAGES; METHODS FOR ALTERING THE ALCOHOL CONTENT OF FERMENTED SOLUTIONS OR ALCOHOLIC BEVERAGES
    • C12H1/00Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages
    • C12H1/02Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material
    • C12H1/06Precipitation by physical means, e.g. by irradiation, vibrations
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12HPASTEURISATION, STERILISATION, PRESERVATION, PURIFICATION, CLARIFICATION OR AGEING OF ALCOHOLIC BEVERAGES; METHODS FOR ALTERING THE ALCOHOL CONTENT OF FERMENTED SOLUTIONS OR ALCOHOLIC BEVERAGES
    • C12H1/00Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages
    • C12H1/02Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material
    • C12H1/06Precipitation by physical means, e.g. by irradiation, vibrations
    • C12H1/063Separation by filtration

Abstract

The invention relates to a low-temperature filtering system with a self-cleaning function, which comprises a raw liquid tank, a cold-heat exchange mechanism, a transfer tank, a diatomite filter, a first fine filter, a settling tank, a finished product tank and a waste liquid tank. The filter system is additionally provided with the settling tank between the diatomite filter and the fine filter, and the settling tank can settle part of diatomite particles mixed in the wine body, so that the content of diatomite in the wine body is obviously reduced, and the processing burden of the fine filter is greatly reduced. And qualified wine in the finished product tank can be reversely conveyed back to the first fine filter and the second fine filter, so that the fine filters are backwashed, and a good cleaning effect is achieved. In addition, the fine filter of the filtering system is also provided with a reverse air inlet device, the reverse air inlet device is used for reversely leading air flow into the fine filter before the fine filter performs back flushing, the introduced air flow can dredge the filter holes, the diatomite particles or lipid substances in the filter holes are loosened, and the resistance in the back washing process is reduced.

Description

Low temperature filtration system with self-cleaning function
Technical Field
The invention relates to a wine filtering technology, in particular to a low-temperature filtering system with a self-cleaning function.
Background
Lipid substances, such as ethyl palmitate, ethyl oleate, ethyl linoleate and the like, are inevitably generated in the wine brewing process, can be dissolved in wine at normal temperature, but can be separated out from the wine at low temperature or in the case of cooling to form white floccules, so that the wine is turbid, and the stability is poor. In order to remove lipid substances from the wine body, the wine body is generally subjected to low-temperature freezing treatment to reduce the temperature of the wine body, so that the lipid substances are separated out from the wine body, and then the lipid substances are filtered by a diatomite filter. Although the diatomite filter has good filtering effect on lipid substances in the wine body, a small part of lipid substances cannot be avoided in the wine body, and partial diatomite particles are inevitably mixed in the wine body passing through the diatomite filter. The admixed diatomite particles and residual lipid substances are very likely to saturate the filters disposed in the downstream process, resulting in a shortened service life of the filters, which need to be replaced frequently. Frequent replacement of the fine filter not only increases the production cost, but also increases the labor intensity of workers, and is not beneficial to improving the production efficiency.
Disclosure of Invention
The invention provides a low-temperature filtering system with a self-cleaning function, which aims to solve the technical problems and comprises a raw liquid tank, a cold-heat exchange mechanism, a transfer tank, a diatomite filter, a first fine filter, a settling tank, a finished product tank and a waste liquid tank; a liquid outlet of the stock solution tank is connected with a liquid inlet of the cold-heat exchange mechanism through a feeding pipeline, a first valve, a first motor and a second valve are sequentially arranged on the feeding pipeline, the second valve is arranged close to the cold-heat exchange mechanism, and the liquid outlet of the cold-heat exchange mechanism is communicated with the liquid inlet of the transfer tank through a third valve; a first return pipeline is connected between the second valve and the liquid inlet of the cold-heat exchange mechanism of the feeding pipeline, one end of the first return pipeline is communicated with the liquid inlet of the cold-heat exchange mechanism, and the other end of the first return pipeline is communicated with the liquid outlet of the transfer tank through a fourth valve, a second motor and a fifth valve;
a branch pipeline is connected between the liquid outlet of the transfer tank and the fifth valve, one end of the branch pipeline is communicated with the liquid outlet of the transfer tank, and the other end of the branch pipeline is communicated with the liquid inlet of the diatomite filter through a sixth valve; a liquid outlet of the diatomite filter is connected with a discharge pipeline, one end of the discharge pipeline is connected with the liquid outlet of the diatomite filter, the other end of the discharge pipeline is respectively communicated with liquid inlets of the sedimentation tank, the waste liquid tank and the finished product tank through a seventh valve, an eighth valve and a ninth valve, and a third motor is arranged on the discharge pipeline; a second returning pipeline is connected between the first motor and the first valve of the feeding pipeline, one end of the second returning pipeline is connected with the feeding pipeline, and the other end of the second returning pipeline is communicated with a liquid outlet of the settling tank through a tenth valve;
a fine filtration output port is also formed in the transfer tank, the fine filtration output port of the transfer tank is communicated with a liquid inlet of the first fine filter through an eleventh valve, a fourth motor and a twelfth valve, and a liquid outlet of the first fine filter is communicated with a discharge pipeline through a thirteenth valve; a cleaning pipeline is connected between the thirteenth valve and the liquid outlet of the first fine filter, one end of the cleaning pipeline is communicated with the liquid outlet of the first fine filter, the other end of the cleaning pipeline is communicated with the liquid outlet of the finished product tank through a fifth motor, and the cleaning pipeline is used for reversely transmitting the liquid in the finished product tank from the liquid outlet of the first fine filter into the first fine filter; and a reverse output pipeline is connected between the liquid inlet of the first fine filter and the twelfth valve, one end of the reverse output pipeline is communicated with the material discharge pipeline, and the other end of the reverse output pipeline is communicated with the liquid inlet of the first fine filter through the fourteenth valve.
Furthermore, still install heating device on the washing pipeline, heating device sets up between the liquid outlet of fifth motor and first secondary filter, heating device is used for heating the liquid that washs the pipeline.
The device further comprises a second fine filter, wherein the second fine filter is arranged between a liquid outlet of the first fine filter and the thirteenth valve; the liquid inlet of the second fine filter is communicated with the liquid outlet of the first fine filter through a fifteenth valve, and the liquid outlet of the second fine filter is connected with a thirteenth valve; a sixteenth valve is arranged between the heating device and the liquid outlet of the first fine filter, a cleaning branch is connected between the sixteenth valve and the heating device, one end of the cleaning branch is connected with the cleaning pipeline, the other end of the cleaning branch is communicated with the liquid outlet of the second fine filter through a seventeenth valve, and the cleaning branch is arranged between the liquid outlet of the second fine filter and the thirteenth valve; a reverse output branch is connected between the liquid inlet of the second fine filter and the fifteenth valve, one end of the reverse output branch is communicated with the liquid inlet of the second fine filter, and the other end of the reverse output branch is communicated with a reverse output pipeline through an eighteenth valve.
Further, still include the air pump, it has first admission line to connect between the liquid outlet of first fine filter and the sixteenth valve, it has the second admission line to connect between the liquid outlet of second fine filter and the seventeenth valve, first admission line with the second admission line links to each other with the air pump through nineteenth valve, twentieth valve respectively, the air pump is used for through first admission line, second admission line respectively to reverse transport gas in first fine filter and the second fine filter, first fine filter and second fine filter have been set respectively and have been used for adjusting the pressure regulating device of inside and outside atmospheric pressure.
Further, the air pump still sets and has set the nitrogen gas jar, is equipped with nitrogen gas in the nitrogen gas jar, the air pump is used for carrying nitrogen gas to first secondary filter and second secondary filter in through first admission line, second admission line respectively.
Further, the first air inlet pipeline and the second air inlet pipeline are respectively provided with a gas metering device.
Further, the heat exchanger is used for exchanging heat between the liquid in the feeding pipeline and the liquid in the discharging pipeline.
Further, cold and hot exchanger includes heat conduction block and heat preservation, heat conduction block is inside offer with charge-in pipeline, arrange row's pipeline assorted first pore structure and second pore structure, the heat preservation parcel is outside at heat conduction block for reduce the heat exchange rate between heat conduction block and the environment.
Furthermore, the cold and heat exchange mechanism is provided with a refrigerant tank, a cold and heat exchange module and a compressor, the refrigerant stored in the refrigerant tank is used for exchanging heat with liquid passing through the cold and heat exchange mechanism, and the compressor is used for cooling the refrigerant through the cold and heat exchange module.
Further, the transfer tank is provided with a temperature detection device; and a liquid outlet of the finished product tank is provided with a liquid metering device.
The invention has the following beneficial technical effects:
compared with the prior art, the invention discloses a low-temperature filtering system with a self-cleaning function, wherein a settling tank is additionally arranged between a diatomite filter and a fine filter, the settling tank can settle part of diatomite particles mixed in a wine body, the settled wine body can be conveyed back to a cold-heat exchange mechanism again for cooling, and the wine body subjected to cooling treatment can be conveyed into the fine filter for treatment. The diatomite content in the wine body treated by the settling tank is obviously reduced, the treatment burden of the fine filter is greatly reduced, the service life of the fine filter is prolonged, and the maintenance cost is reduced. Most importantly, the qualified wine in the finished product tank can be reversely conveyed back to the first fine filter and the second fine filter after being heated, so that the fine filters can be backwashed, and meanwhile, part of lipid substances in the fine filters can be further re-dissolved by utilizing high-temperature wine, so that a good cleaning effect is achieved. In addition, the fine filter of the filtering system is also provided with a reverse air inlet device, the reverse air inlet device is used for reversely leading air flow into the fine filter before the back flushing of the fine filter, the purpose of dredging the filter holes is achieved through the introduced air flow, and diatomite particles or lipid substances in the filter holes are loosened to reduce resistance for the subsequent back washing process.
Drawings
FIG. 1 is a schematic structural view of a cryogenic filtration system having a self-cleaning function in example 1.
FIG. 2 is a schematic diagram of a cryogenic filtration system with an air pump.
Fig. 3 is a schematic structural view of the cold heat exchanger in embodiment 1.
Fig. 4 is a schematic view showing a connection relationship among the heat and cold exchanging mechanism, the refrigerant tank, the heat and cold exchanging module, and the compressor in embodiment 1.
Reference numerals:
1-raw liquid tank, 2-cold-heat exchange mechanism, 3-transfer tank, 4-diatomite filter, 5-first fine filter, 6-precipitation tank, 7-waste liquid tank, 8-finished product tank, 9-feeding pipeline, 10-first valve, 11-first motor, 12-second valve, 13-third valve, 14-first return pipeline, 15-fourth valve, 16-second motor, 17-fifth valve, 18-branch pipeline, 19-sixth valve, 20-discharge pipeline, 21-seventh valve, 22-eighth valve, 23-ninth valve, 24-third motor, 25-second return pipeline, 26-tenth valve, 27-eleventh valve, 28-fourth motor, 29-twelfth valve, 30-a thirteenth valve, 31-a cleaning pipeline, 32-a fifth motor, 33-a reverse output pipeline, 34-a fourteenth valve, 35-a heating device, 36-a second fine filter, 37-a fifteenth valve, 38-a sixteenth valve, 39-a cleaning branch, 40-a seventeenth valve, 41-a reverse output branch, 42-an eighteenth valve, 43-a cold-heat exchanger, 44-a twenty-first valve, 45-a twelfth valve, 46-a twenty-third valve, 47-an air pump, 48-a first air inlet pipeline, 49-a second air inlet pipeline, 50-a nineteenth valve, 51-a twentieth valve, 52-a nitrogen tank, 53-a heat conducting block, 54-a heat insulating layer, 55-a first hole structure and 56-a second hole structure, 57-refrigerant tank, 58-cold heat exchange module and 59-compressor.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand for those skilled in the art and will therefore make the scope of the invention more clearly defined.
Example 1:
as shown in fig. 1, the present embodiment provides a low-temperature filtration system with a self-cleaning function, which includes a raw liquid tank 1, a heat and cold exchange mechanism 2, a transfer tank 3, a diatomite filter 4, a first fine filter 5, a settling tank 6, a finished product tank 8, and a waste liquid tank 7. The liquid outlet of the raw liquid tank 1 is connected with the liquid inlet of the cold and heat exchange mechanism 2 through a feeding pipeline 9. The feed pipe 9 is provided with a first valve 10, a first motor 11 and a second valve 12 in sequence, the first valve 10 is arranged close to the raw liquid tank 1, and the second valve 12 is arranged close to the cold-heat exchange mechanism 2. The liquid outlet of the cold-heat exchange mechanism 2 is communicated with the liquid inlet of the transfer tank 3 through a third valve 13. The heat exchange mechanism 2 is used for cooling the liquid in the pipeline, the heat exchange mechanism 2 in this embodiment is provided with a refrigerant tank 57, a heat exchange module 58 and a compressor 59, the refrigerant stored in the refrigerant tank 57 is used for exchanging heat with the liquid passing through the heat exchange mechanism 2, and the compressor 59 is used for cooling the refrigerant through the heat exchange module 58, and the specific connection relationship is as shown in fig. 4. Of course, other devices with a temperature lowering function in the market can be used as the heat exchange mechanism 2, which is not limited herein. The feeding pipeline 9 is connected with a first returning pipeline 14 between the second valve 12 and the liquid inlet of the cold and heat exchange mechanism 2, one end of the first returning pipeline 14 is communicated with the liquid inlet of the cold and heat exchange mechanism 2, and the other end of the first returning pipeline 14 is communicated with the liquid outlet of the transfer tank 3 through a fourth valve 15, a second motor 16 and a fifth valve 17. That is, the heat exchange mechanism 2 and the transfer tank 3 may form a circulation loop through the first return pipe 14, so that the heat exchange mechanism 2 may repeatedly cool the liquid in the transfer tank 3 until the liquid in the transfer tank 3 meets the requirement of low-temperature filtration. In order to facilitate the accurate monitoring of the liquid temperature in the transfer tank 3, a temperature detection device is also arranged on the side wall of the transfer tank 3, such as a thermometer, the temperature detected by the temperature detection device can be read in real time, and the temperature control accuracy is greatly improved.
A branch pipeline 18 is connected between the liquid outlet of the transfer tank 3 and the fifth valve 17, one end of the branch pipeline 18 is communicated with the liquid outlet of the transfer tank 3, and the other end is communicated with the liquid inlet of the diatomite filter 4 through a sixth valve 19. The liquid outlet of the diatomite filter 4 is connected with a material discharge pipeline 20, and one end of the material discharge pipeline 20 is connected with the liquid outlet of the diatomite filter 4. The other end is respectively communicated with a liquid inlet of the sedimentation tank 6, a liquid inlet of the waste liquid tank 7 and a liquid inlet of the finished product tank 8 through a seventh valve 21, an eighth valve 22 and a ninth valve 23. The discharge conduit 20 is provided with a third motor 24. That is, the liquid discharged through the discharge pipe 20 may be selected from the settling tank 6, the waste liquid tank 7, or the finished product tank 8, and only the seventh valve 21, the eighth valve 22, and the ninth valve 23 need to be controlled to be opened or closed. The feed line 9 is further connected to a second return line 25 between the first motor 11 and the first valve 10. One end of the second return pipeline 25 is communicated with the feeding pipeline 9, and the other end is communicated with the liquid outlet of the precipitation tank 6 through a tenth valve 26, so that the precipitated liquid is conveyed to the cold and heat exchange mechanism 2 through the feeding pipeline 9 again. And the finished product liquid in the finished product tank 8 flows to the discharge pipe from the liquid outlet of the finished product tank 8 and is discharged to the next working procedure through a twenty-third valve 46 arranged on the discharge pipe. The waste liquid tank 7 is used for collecting cleaning waste liquid, and once the waste liquid tank 7 is filled with the cleaning waste liquid, the cleaning waste liquid is directly transferred by workers generally and enters a waste liquid treatment process.
The transfer tank 3 is also provided with a fine filtration output port, and the fine filtration output port of the transfer tank 3 is communicated with the liquid inlet of the first fine filter 5 through an eleventh valve 27, a fourth motor 28 and a twelfth valve 29. The liquid outlet of the first fine filter 5 is communicated with a discharge pipeline 20 through a thirteenth valve 30, and the liquid after fine filtration is conveyed to the finished product tank 8 through the discharge pipeline 20. A cleaning pipeline 31 is further connected between the thirteenth valve 30 and the liquid outlet of the first fine filter 5, one end of the cleaning pipeline 31 is communicated with the liquid outlet of the first fine filter 5, the other end of the cleaning pipeline 31 is communicated with the liquid outlet of the finished product tank 8 through a fifth motor 32 and a twentieth valve 45, and the liquid outlet of the finished product tank 8 is provided with a liquid metering device, such as a flowmeter. The cleaning pipeline 31 is used for reversely transmitting part of the finished product liquid in the finished product tank 8 from the liquid outlet of the first fine filter 5 to the first fine filter 5 so as to realize back flushing of the filter membrane in the first fine filter 5. And a reverse output pipeline 33 is connected between the liquid inlet of the first fine filter 5 and the twelfth valve 29, one end of the reverse output pipeline 33 is communicated with the discharging pipeline 20, and the other end is communicated with the liquid inlet of the first fine filter 5 through a fourteenth valve 34. Finished product liquid reversely entering the first fine filter 5 reversely penetrates through a filter membrane set arranged in the first fine filter 5, so that the reverse cleaning effect on the filter membrane is achieved, the cleaned finished product liquid enters a reverse output pipeline 33 through a liquid inlet of the first fine filter 5, is discharged to a material discharge pipeline 20 through the reverse output pipeline 33, and is further discharged to a waste liquid tank 7 or a settling tank 6.
Preferably, a heating device 35 is further installed on the cleaning pipe 31. A heating device 35 is disposed between the fifth motor 32 and the liquid outlet of the first fine filter 5, and the heating device 35 is used for heating the liquid in the cleaning pipeline 31. The heating device 35 may be a commercially available heater. The heating device 35 is used to heat the liquid in the cleaning pipeline 31, so as to re-dissolve and take away the lipid substances precipitated at low temperature in the first fine filter 5 by using the heated finished product liquid, thereby improving the back washing effect of the first fine filter 5.
As shown in fig. 1, a second fine filter 36 is preferably included. The second fine filter 36 is arranged between the outlet of the first fine filter 5 and the thirteenth valve 30. The liquid inlet of the second fine filter 36 is communicated with the liquid outlet of the first fine filter 5 through a fifteenth valve 37. The outlet of the second fine filter 36 is connected to the thirteenth valve 30. A sixteenth valve 38 is arranged between the heating device 35 and the liquid outlet of the first fine filter 5 in the cleaning pipeline 31, and a cleaning branch 39 is further connected between the sixteenth valve 38 and the heating device 35 in the cleaning pipeline 31. One end of the cleaning branch 39 is connected to the cleaning pipeline 31, and the other end is connected to the liquid outlet of the second fine filter 36 through a seventeenth valve 40. The cleaning branch 39 is arranged between the liquid outlet of the second fine filter 36 and the thirteenth valve 30, a reverse output branch 41 is further connected between the liquid inlet of the second fine filter 36 and the fifteenth valve 37, one end of the reverse output branch 41 is communicated with the liquid inlet of the second fine filter 36, and the other end is communicated with the reverse output pipeline 33 through an eighteenth valve 42. The arrangement of the cleaning branch 39 and the reverse output branch 41 realizes the simultaneous reverse cleaning of the first fine filter 5 and the second fine filter 36, which is beneficial to improving the cleaning efficiency. In this embodiment, a polypropylene filter membrane is disposed in the first fine filter 5, and the polypropylene filter membrane is made of polypropylene ultrafine fibers by hot-melt adhesion. And be provided with aerogel filtration membrane group in the second secondary filter 36, aerogel filtration membrane group includes base cloth, and the base cloth both sides are equipped with the aerogel filter layer respectively, and the aerogel filter layer is provided with microfiltration membrane in the one side of carrying on the back mutually with the base cloth. In the embodiment, the base fabric is made of modified fiber woven fabric, and the thickness of the base fabric is about 1.5 mm; the internal pore diameter of the aerogel filter layer is controlled to be 8-13nm, and the thickness of the aerogel filter layer is preferably 16 cm; and the microporous filtering membrane positioned at the outermost side is a PTFE (polytetrafluoroethylene) microporous filtering membrane, the thickness of the microporous filtering membrane is 0.5 mm, and the microporous filtering membrane, the aerogel filtering layer and the base cloth form a gradient pore structure.
As shown in fig. 2, an air pump 47 is preferably further included. A first air inlet pipe 48 is connected between the liquid outlet of the first fine filter 5 and the sixteenth valve 38. A second air inlet pipe 49 is connected between the liquid outlet of the second fine filter 36 and the seventeenth valve 40. The first air inlet pipe 48 and the second air inlet pipe 49 are respectively communicated with the air pump 47 through a nineteenth valve 50 and a twentieth valve 51. The air pump 47 is used for reversely delivering air into the first fine filter 5 and the second fine filter 36 through a first air inlet pipe 48 and a second air inlet pipe 49 respectively. The air pump 47 reversely delivers air into the first fine filter 5 and the second fine filter 36, so as to dredge the filter holes by the action of air flow and reduce resistance for subsequent backwashing. Of course, since the gas is introduced into the first fine filter 5 and the second fine filter 36, the pressure will inevitably increase, and at this time, in order to reduce the pressure values in the first fine filter 5 and the second fine filter 36 and maintain the balance of the internal and external pressures, pressure adjusting devices for adjusting the internal and external pressures need to be respectively provided for the first fine filter 5 and the second fine filter 36. In this embodiment, the first fine filter 5 and the second fine filter 36 are respectively provided with air leakage holes, and the first fine filter 5 and the second fine filter 36 are respectively provided with cover plates matched with the air leakage holes, the cover plates are in sealing fit with the air leakage holes, and the first fine filter 5 and the second fine filter 36 are respectively connected with the cover plates in a rotating manner.
Preferably, in order to prevent some impurities in the air from polluting the interior of the fine filter, the air pump 47 is further provided with a nitrogen tank 52, and the nitrogen tank 52 is filled with nitrogen. The air pump 47 is used for delivering nitrogen to the first fine filter 5 and the second fine filter 36 through a first air inlet pipeline 48 and a second air inlet pipeline 49 respectively. In order to control the gas flow in the first intake duct 48 and the second intake duct 49, a gas metering device is also provided in each of the first intake duct 48 and the second intake duct 49. By adjusting the gas metering device, the amount of gas flow into the first fine filter 5 and the second fine filter 36 can be controlled.
As shown in fig. 3, it is preferable that a cold-heat exchanger 43 is further included, and the cold-heat exchanger 43 is used for exchanging heat between the liquid in the feeding pipe 9 and the liquid in the discharging pipe 20. Specifically, the heat exchanger 43 includes a heat conductive block 53 and an insulating layer 54. The heat conducting block 53 is provided with a first hole structure 55 and a second hole structure 56 inside, which are matched with the feeding pipeline 9 and the discharging pipeline 20. The feeding pipe 7 and the discharging pipe 22 respectively pass through the first hole structure 52 and the second hole structure 53, and the first hole structure 52 is communicated with the second hole structure 53, i.e. the outer side wall of the feeding pipe 9 and the outer side wall of the discharging pipe 20 can be in direct contact, so as to further accelerate the heat exchange rate. The insulation layer 54 is wrapped around the exterior of the thermal block 53 for reducing the rate of heat transfer between the thermal block 53 and the environment.
The working process of the low-temperature filtering system with the self-cleaning function is as follows:
as shown in fig. 2, when the filtration system is in the initial state, all the valves are in the closed state, and all the motors are in the non-working state. When the filtering system needs to enter a working state, the first valve 10, the second valve 12 and the third valve 13 are firstly opened, the first motor 11, the cold-heat exchanger 43 and the cold-heat exchange mechanism 2 are started, so that the wine body raw liquid reaches the cold-heat exchange mechanism 2 through the first valve 10, the first motor 11, the cold-heat exchanger 43 and the second valve 12, the cold-heat exchange mechanism 2 initially cools the wine body raw liquid, and the cooled wine body reaches the transfer tank 3 through the third valve 13 until the transfer tank 3 is full of wine. And then closing the first valve 10, the first motor 11 and the second valve 12, opening the fifth valve 17, the second motor 16 and the fourth valve 15, so that the wine in the transfer tank 3 returns to the cold-heat exchange mechanism 2 again through the fifth valve 17, the second motor 16 and the fourth valve 15, cooling again, and returning the cooled wine to the transfer tank 3 again through the second valve 13, and repeating the steps for a plurality of times until the temperature of the wine in the transfer tank 3 meets the requirement. The wine temperature in the transit tank 3 is controlled to be between-1 ℃ and-5 ℃ generally. After the wine temperature in the transit tank 3 meets the requirement, the fourth valve 15, the second motor 16, the fifth valve 17 and the third valve 13 are closed, the sixth valve 19, the twenty-first valve 44 and the seventh valve 21 are opened, the diatomite filter 4 and the third motor 24 are started, so that the wine in the transit tank 3 reaches the diatomite filter 4 through the sixth valve 19, lipid substances are filtered out by the diatomite filter 4, the wine treated by the diatomite filter 4 further reaches the sedimentation tank 6 through the twenty-first valve 44, the third motor 24, the cold-heat exchanger 43 and the seventh valve 21, and diatomite particles mixed in the wine are removed through standing sedimentation. When all the wine in the transit tank 3 reaches the settling tank 6, the sixth valve 19, the twenty-first valve 44 and the seventh valve 21 can be closed, and the diatomite filter 4 and the third motor 24 are adjusted to be in a non-working state. After the wine in the settling tank 6 is settled for a period of time, the tenth valve 26, the second valve 12 and the third valve 13 can be opened, the first motor 11 and the heat exchange mechanism 2 are started, the wine in the settling tank 3 is re-conveyed to the heat exchange mechanism 2 through the second returning pipeline 25 and the feeding pipeline 9, the settled wine is cooled again by the heat exchange mechanism 2, and the wine treated by the heat exchange mechanism 2 reaches the transfer tank 3 again through the third valve 13. When the wine in the settling tank 6 is completely transferred to the transfer tank 3, the tenth valve 26 and the second valve 12 are closed, the first motor 11 is closed, the fourth valve 15, the second motor 16 and the fifth valve 17 are opened at the same time, and the wine in the transfer tank 3 is sent back to the cold-heat exchange mechanism 2 again by using the first return pipeline 14, so that the circulation cooling process similar to the cooling process is realized until the temperature of the wine in the transfer tank 3 meets the requirement. Once the wine in the transfer tank 3 meets the fine filtration requirement, the third valve 13, the fifth valve 17, the second motor 16 and the fourth valve 15 are closed in time, the eleventh valve 27, the fourth motor 28, the twelfth valve 29, the fifteenth valve 37, the thirteenth valve 30, the third motor 24 and the ninth valve 23 are opened, the first fine filter 5 and the second fine filter 36 are started, so that the low-temperature wine in the transfer tank 3 passes through the first fine filter 5 and the second fine filter 36 in sequence, the fine filtration treatment of the wine is realized, the wine after the fine filtration treatment reaches the discharge pipeline 20 through the thirteenth valve 30, and the wine is conveyed to the finished product tank 8 through the discharge pipeline 20. After all the wine bodies in the transfer tank 3 are transferred to the finished product tank 8, the eleventh valve 27, the fourth motor 28, the twelfth valve 29, the fifteenth valve 37, the thirteenth valve 30, the third motor 24 and the ninth valve 23 can be closed. Then, the twentieth valve 45, the sixteenth valve 38, the seventeenth valve 40, the fourteenth valve 34, the eighteenth valve 42 and the eighth valve 22 are opened, the fifth motor 32, the heating device 35 and the third motor 24 are started, so that part of the finished wine body reaches the heating device 35 through the twelfth valve 45 and the fifth motor 32, and is heated and heated by the heating device 35, the heated wine body reaches the liquid outlet of the first fine filter 5 and the liquid outlet of the second fine filter 36 through the sixteenth valve 38 and the seventeenth valve 40 respectively, the heated wine body reversely enters the first fine filter 5 and the second fine filter 36 from the liquid outlet of the first fine filter 5 and the liquid outlet of the second fine filter 36 respectively, the backwashing is realized for the filter membranes in the first fine filter 5 and the second fine filter 36, and the backwashing liquid in the first fine filter 5 and the second fine filter 36 respectively passes through the liquid inlet of the first fine filter 5, the liquid inlet of the second fine filter 5, and the backwashing liquid in the second fine filter 36 respectively, The liquid inlet of the second fine filter 36 flows out, and flows to the discharge pipeline 20 through the reverse output pipeline 33 and the reverse output branch 41, and is conveyed to the waste liquid tank 7 through the discharge pipeline 20, so that the back flushing process of the first fine filter 5 and the second fine filter 36 is completed. After the backwash liquid is completely conveyed to the waste liquid tank 7, the twentieth valve 45, the sixteenth valve 38, the seventeenth valve 40, the fourteenth valve 34, the eighteenth valve 42, the eighth valve 22, the fifth motor 32, the heating device 35 and the third motor 24 are closed. Of course, the backwash liquid in the first fine filter 5 and the second fine filter 36 may also be transported to the settling tank 6 through the discharge pipeline 20 for settling and subsequent treatment, so as to achieve purification and recycling.
Generally, to improve the backwashing efficiency, before backwashing the fine filters with the product liquid, the nineteenth valve 50 and the twentieth valve 51 may be opened, and the cover plates of the first fine filter 5 and the second fine filter 36 may be unscrewed to open the air leakage holes, and the air pump 47 may be started. Nitrogen is pumped into the first fine filter 5 and the second fine filter 36 through a liquid outlet of the first fine filter 5 and a liquid outlet of the second fine filter 36 by the air pump 47, impurities in filter holes are pre-washed by air flow, resistance is reduced for subsequent liquid washing, the back washing effect is further improved, and the back washing efficiency is improved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A low-temperature filtering system with a self-cleaning function is characterized by comprising a raw liquid tank (1), a cold-hot exchange mechanism (2), a transfer tank (3), a diatomite filter (4), a first fine filter (5), a settling tank (6), a finished product tank (8) and a waste liquid tank (7); a liquid outlet of the stock solution tank (1) is connected with a liquid inlet of the cold-heat exchange mechanism (2) through a feeding pipeline (9), a first valve (10), a first motor (11) and a second valve (12) are sequentially arranged on the feeding pipeline (9), the second valve (12) is arranged close to the cold-heat exchange mechanism (2), and the liquid outlet of the cold-heat exchange mechanism (2) is communicated with the liquid inlet of the transit tank (3) through a third valve (13); a first returning pipeline (14) is connected between the second valve (12) and a liquid inlet of the cold-heat exchange mechanism (2) of the feeding pipeline (9), one end of the first returning pipeline (14) is communicated with the liquid inlet of the cold-heat exchange mechanism (2), and the other end of the first returning pipeline is communicated with a liquid outlet of the transit tank (3) through a fourth valve (15), a second motor (16) and a fifth valve (17);
a branch pipeline (18) is connected between the liquid outlet of the transfer tank (3) and the fifth valve (17), one end of the branch pipeline (18) is communicated with the liquid outlet of the transfer tank (3), and the other end of the branch pipeline is communicated with the liquid inlet of the diatomite filter (4) through a sixth valve (19); a liquid outlet of the diatomite filter (4) is connected with a discharging pipeline (20), one end of the discharging pipeline (20) is connected with the liquid outlet of the diatomite filter (4), the other end of the discharging pipeline (20) is respectively communicated with liquid inlets of the sedimentation tank (6), the waste liquid tank (7) and the finished product tank (8) through a seventh valve (21), an eighth valve (22) and a ninth valve (23), and a third motor (24) is arranged on the discharging pipeline (20); a second returning pipeline (25) is connected between the first motor (11) and the first valve (10) of the feeding pipeline (9), one end of the second returning pipeline (25) is connected with the feeding pipeline (9), and the other end of the second returning pipeline is communicated with a liquid outlet of the settling tank (6) through a tenth valve (26);
a fine filtration output port is also formed in the transfer tank (3), the fine filtration output port of the transfer tank (3) is communicated with a liquid inlet of the first fine filter (5) through an eleventh valve (27), a fourth motor (28) and a twelfth valve (29), and the liquid outlet of the first fine filter (5) is communicated with a material discharge pipeline (20) through a thirteenth valve (30); a cleaning pipeline (31) is further connected between the thirteenth valve (30) and the liquid outlet of the first fine filter (5), one end of the cleaning pipeline (31) is communicated with the liquid outlet of the first fine filter (5), the other end of the cleaning pipeline is communicated with the liquid outlet of the finished product tank (8) through a fifth motor (32), and the cleaning pipeline (31) is used for reversely transmitting the liquid in the finished product tank (8) from the liquid outlet of the first fine filter (5) to the first fine filter (5); and a reverse output pipeline (33) is connected between the liquid inlet of the first fine filter (5) and the twelfth valve (29), one end of the reverse output pipeline (33) is communicated with the discharge pipeline (20), and the other end of the reverse output pipeline is communicated with the liquid inlet of the first fine filter (5) through a fourteenth valve (34).
2. A cryogenic filtration system with self-cleaning capability as claimed in claim 1, wherein a heating device (35) is further mounted on the cleaning conduit (31), the heating device (35) being disposed between the fifth motor (32) and the liquid outlet of the first fine filter (5), the heating device (35) being configured to heat the liquid in the cleaning conduit (31).
3. The cryogenic filtration system with self-cleaning function according to claim 2, further comprising a second fine filter (36), wherein the second fine filter (36) is disposed between the liquid outlet of the first fine filter (5) and the thirteenth valve (30); a liquid inlet of the second fine filter (36) is communicated with a liquid outlet of the first fine filter (5) through a fifteenth valve (37), and a liquid outlet of the second fine filter (36) is connected with a thirteenth valve (30); a sixteenth valve (38) is arranged between the heating device (35) and the liquid outlet of the first fine filter (5) of the cleaning pipeline (31), a cleaning branch (39) is further connected between the sixteenth valve (38) and the heating device (35) of the cleaning pipeline (31), one end of the cleaning branch (39) is connected with the cleaning pipeline (31), the other end of the cleaning branch is communicated with the liquid outlet of the second fine filter (36) through a seventeenth valve (40), and the cleaning branch (39) is arranged between the liquid outlet of the second fine filter (36) and the thirteenth valve (30); a reverse output branch (41) is also connected between the liquid inlet of the second fine filter (36) and the fifteenth valve (37), one end of the reverse output branch (41) is communicated with the liquid inlet of the second fine filter (36), and the other end is communicated with the reverse output pipeline (33) through an eighteenth valve (42).
4. Cryogenic filtration system with self-cleaning functionality according to claim 3, further comprising an air pump (47), a first air inlet pipeline (48) is connected between the liquid outlet of the first fine filter (5) and the sixteenth valve (38), a second air inlet pipeline (49) is connected between the liquid outlet of the second fine filter (36) and the seventeenth valve (40), the first air inlet pipeline (48) and the second air inlet pipeline (49) are respectively connected with an air pump (47) through a nineteenth valve (50) and a twentieth valve (51), the air pump (47) is used for reversely conveying air into the first fine filter (5) and the second fine filter (36) through a first air inlet pipeline (48) and a second air inlet pipeline (49), and the first fine filter (5) and the second fine filter (36) are respectively provided with a pressure regulating device for regulating the internal and external air pressure.
5. A cryogenic filtration system with self-cleaning capability according to claim 4, wherein a nitrogen tank (52) is provided with the air pump (47), the nitrogen tank (52) being filled with nitrogen, the air pump (47) being adapted to deliver nitrogen to the first fine filter (5) and the second fine filter (36) via a first inlet line (48) and a second inlet line (49), respectively.
6. Cryogenic filtration system with self-cleaning function according to claim 4, characterised in that the first inlet duct (48) and the second inlet duct (49) are each provided with a gas metering device.
7. Cryogenic filtration system with self-cleaning functionality according to claim 1, further comprising a heat exchanger (43), the heat exchanger (43) being used for heat exchange between the liquid in the feed conduit (9) and the liquid in the discharge conduit (20).
8. The cryogenic filtration system with self-cleaning function according to claim 7, wherein the cold-heat exchanger (43) comprises a heat conducting block (53) and an insulating layer (54), the heat conducting block (53) has a first hole structure (55) and a second hole structure (56) inside, which are matched with the feeding pipeline (9) and the discharging pipeline (20), and the insulating layer (54) is wrapped outside the heat conducting block (53) for reducing the heat exchange rate between the heat conducting block (53) and the environment.
9. The cryogenic filtering system with a self-cleaning function according to claim 1, characterized in that a refrigerant tank (57), a heat exchange module (58) and a compressor (59) are provided in the heat exchange mechanism (2), the refrigerant stored in the refrigerant tank (57) is used for exchanging heat with the liquid passing through the heat exchange mechanism (2), and the compressor (59) is used for cooling the refrigerant by the heat exchange module (58).
10. The cryogenic filtration system with self-cleaning function according to claim 1, characterized in that the transfer pot (3) is provided with a temperature detection device; and a liquid outlet of the finished product tank (8) is provided with a liquid metering device.
CN201910935817.0A 2019-09-29 2019-09-29 Low temperature filtration system with self-cleaning function Pending CN110616133A (en)

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US6332977B1 (en) * 1999-05-28 2001-12-25 Acs Acquisitions Corp. Apparatus for steam sterilizing and recycling leaf-filter aids
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