CN108378274A - A kind of sauce salts down food desalter and desalination process - Google Patents

Abstract

The invention relates to a desalting device and a desalting method for pickled food. A desalting device for pickled food, the sealed chamber (1) of which is respectively connected with a vacuum compression pump (2), a feed valve (3), a discharge valve (4) and a drain valve (5). A method for desalting pickled food, the desalination time of any one time is 3-30 minutes, the ratio of the weight parts of the salt content of the pickled food to the desalted water in any one desalination process is 1:0.2-0.8, and the salt content of the pickled food and desalted The ratio of parts by weight of water is 1:0.5-1.5. The invention not only solves the problem of wastewater discharge for enterprises, but also greatly reduces the pressure on the ecological environment caused by the consumption of water resources and wastewater discharge in my country, effectively realizes zero discharge of desalinated water, greatly reduces the production cost of enterprises, and saves It saves precious natural resources and practices the road of sustainable development that the Chinese government has always advocated.

Description

A desalination device and desalination method for pickled food

technical field

The invention relates to the technical field of pickled food processing, in particular to a desalination device and method for pickled food.

Background technique

Soaking and dilution desalination is currently a desalination method commonly used in the pickled food industry. Its essence is to soak pickled foods (such as pickles, pickled vegetables, kimchi, etc.) in water (edible pipeline water) under normal conditions, and after a certain period of time The salt content in the pickled food is diluted (i.e. desalination), this method consumes a lot of water and takes a long time to desalinate. According to the desalination method of the prior art, the salinity of the pickled food is desalinated from 15-16% before desalination to Calculated at 4-6% after desalination, the water consumption is usually 8-10 times the weight of pickled food, the desalination time is about 1-2 hours, the desalination uniformity is about 80-90%, and the soaked desalted water contains an average of salt The salinity of this part is about 1.5%. Except for a small amount of reuse, the rest of this part of the brine is collected and treated as wastewater and then discharged with the sewage. Diluted with water, it can be seen that the total amount of water consumed by the desalination technology of the prior art per ton of pickled food is about 40 tons.

Calculated on the basis of the total annual production of 5 million tons of pickled food in my country, the annual desalination water consumption of pickled food is about 200 million tons, plus the dilution water consumed by discharge, the total annual water consumption in the country is about 1,000,000 tons, converted into cost About 2 billion yuan/year, the total amount of salt discharged with sewage is about 3 million tons, and the converted economic loss is about 2.4 billion yuan/year.

On the other hand, due to the large water consumption of the existing desalination method, the serious waste of water resources, and the discharge of a large amount of salt with the sewage, the shortage of water resources in my country has resulted in the deterioration of soil quality and ecological environment. In recent years, my country's ecological A series of mandatory policies and measures have been issued for resource and environmental protection. At present, most domestic pickled food processing enterprises are on the verge of paying high sewage charges and surviving the predicament of competitive pressure.

purpose of invention

The present invention is a conceptual expression of concise and unified technical features, and expresses the salt content in desalinated and pickled foods in percentages, wherein the numerator represents the parts by weight of salt, and the denominator represents the parts by weight of desalinated or pickled foods, For example, the desalinated or pickled food with a salt content of 8% means that in 108 parts by weight, the parts by weight of salt are 8 parts, and the parts by weight of desalted water or pickled food are 100 parts. The present invention defines salt-free water (edible pipe water) as desalinated water with a salt content of 0%. In the present invention, 1Kg is regarded as a part (unit) by weight.

The technical problem to be solved by the present invention is to provide a method that overcomes the defects of the prior art, solves the huge water consumption of pickled food desalination, improves the uniformity of salt content of pickled food, shortens the desalination time, and recycles desalted water to realize waste water. A zero-emission desalination device and desalination method for pickled food. The technical solution adopted by the present invention to solve the technical problem is: a pickled food desalination device, its sealed chamber 1 is connected to the vacuum compression pump 2, the feed valve 3, the discharge valve 4 and the drain valve 5 respectively. The technical problems to be solved by the present invention can be further solved by the following technical solutions: the drain valve 5 is connected to the second water inlet valve 12, the second brine tank 13, the second water outlet valve 14, the water inlet pump 9, and the sealing chamber 1 in sequence; A multi-way pipe 11 is provided between the valve 5 and the second water inlet valve 12. The multi-way pipe 11 is connected to the drain valve 5 and the second water inlet valve 12. The multi-way pipe 11 is connected to the third water inlet valve 6 and the third brine in turn. tank 7, third water outlet valve 8 and water inlet pump 9; the multi-way pipe 11 is sequentially connected to the first water inlet valve 20, the first brine tank 21, the first water outlet valve 22, the resource recovery mechanism 18, the feedwater pump 19, the fourth water inlet The water valve 15, the fourth brine tank 16, the fourth outlet valve 17, the water inlet pump 9, the water supply pipe 23 is connected to the fourth water inlet valve 15 through the water supply valve 10; the desalinated water circulation mechanism is arranged between the drain valve 5 and the multi-way pipe 11 , the desalinated water circulation mechanism is that the circulation pump 24 is connected to the drain valve 5 and the multi-way pipe 11, the multi-way pipe 11 is connected to the sealing chamber 1 and/or the circulation pump 24 is connected to the drain valve 5 and the multi-way pipe 11, and the multi-way pipe 11 is connected to the flushing water in turn. Valve 25, discharge valve 4. The technical solution adopted by the present invention to solve the technical problem is: a method for desalting pickled food, opening the feed valve 3, putting the pickled food and desalted water into the sealed chamber 1, closing the feed valve 3, and opening the vacuum compression pump 2. Desalt the pickled food at least once, and the desalination time for any one time is 3-30 minutes. The weight ratio of food and desalinated water is 1:0.5-1.5. After at least one desalination, close the vacuum compression pump 2, open the drain valve 5 to discharge the desalinated water, open the discharge valve 4 to discharge the pickled food, and close the discharge valve 4 and drain valve 5. The technical problem to be solved by the present invention can be further solved by the following technical solutions: open the second water inlet valve 12 after opening the drain valve 5, and close the drain valve 5 and the second water inlet valve after injecting desalted water into the second brine tank 13 12. Open the second water outlet valve 14 and the water inlet pump 9 to inject desalted water into the sealed chamber 1, then close the second water outlet valve 14 and the water inlet pump 9; Inject desalted water into the third salt water tank 7, close the drain valve 5 and the third water inlet valve 6, open the third water outlet valve 8, and the water inlet pump 9, inject desalted water into the sealed chamber 1, and then close the third water outlet valve 8 and the water inlet pump 9 Open the first water inlet valve 20 after opening the drain valve 5, inject desalted water into the first salt water tank 21 through the multi-way pipe 11, close the drain valve 5 and the first water inlet valve 20, and open the first water outlet valve 22 and the fourth The water inlet valve 15, after the desalted water is processed by the resource recovery mechanism 18, the desalted water is pumped by the feedwater pump 19 and injected into the fourth brine tank 16, and then the first water outlet valve 22 and the fourth water inlet valve 15 are closed, or the water supply valve 10 and the second water inlet valve are opened. Four water inlet valves 15, water supply pipe 23 inject desalted water into the fourth brine tank 16 and then close the water supply valve 10, fourth water inlet valve 15 and then open the fourth water outlet valve 17, water inlet pump 9 inject desalted water into the sealed chamber 1 and then close The fourth water outlet valve 17, the water inlet pump 9; after opening the vacuum compression pump 2, open the drain valve 5, the circulation pump 24, and the flushing valve 25, so that the desalinated water self-sealing chamber 1, the drain valve 5, the circulation pump 24, and the multi-way pipe 11 , flushing valve 25, and discharge valve 4 return to the sealed chamber 1 and/or open the drain valve 5 and circulation pump 24, so that the desalted water flows back from the sealed chamber 1, drain valve 5, circulation pump 24, and multi-way pipe 11 to the sealed chamber. Storehouse 1, close drain valve 5, circulation pump 24, flushing valve 25 after closing vacuum compression pump 2. The present invention can be provided with a decompression valve 28 on the sealed bin 1, to release the vacuum negative pressure in the sealed bin 1 before opening the discharge valve 4, also can be provided with the agitator 26 of self-contained blade 27 on the sealed bin 1, with Stir the pickled food when desalting the pickled food, speed up the exchange time of the pickled food and desalinated water, and improve the uniformity of desalination of the pickled food. Communication in the present invention refers to direct communication or communication through pipelines between two related technical features. The vacuum compression pump, mixer, circulation pump, water inlet pump, multi-way pipe, resource recovery mechanism, water feed pump and all valves in the present invention are all prior art, and the sealed chamber and brine tank are manufactured by mechanical processing. The invention can desalinate pickled foods to obtain different salt contents according to the tastes of different consumers. Because the present invention adopts the above technical scheme, the water consumption in the desalination process is only 1-2% of that of the prior art soaking dilution desalination method, the desalination uniformity of pickled food reaches 98%-100%, and the desalination time is increased by about 50% %. The invention not only solves the problem of wastewater discharge for enterprises, but also greatly reduces the pressure on the ecological environment caused by the consumption of water resources and wastewater discharge in my country, effectively realizes zero discharge of desalinated water, greatly reduces the production cost of enterprises, and saves It saves precious natural resources and practices the road of sustainable development that the Chinese government has always advocated.

The beneficial effect contrast of the present invention and prior art is as follows:

1) The water consumption per ton of pickled food in the existing desalination technology is about 40 tons (including water consumption for discharge and dilution), but the water consumption of the present invention is only 0.5-1 ton. For example, an enterprise with an annual production of 15,000 tons of pickled food, The amount of desalted water consumed by the existing technology is about 600,000 tons, and the cost of desalted water is about 1.2 million yuan per year based on 2 yuan per ton (including sewage charges). The optimal weight ratio of desalted water and pickled food in the present invention is 1:1, and only 0.5-1 ton of water needs to be supplemented for each ton of pickled food, which is 98-99% less than the desalination method of the prior art. % of water, wherein 12% of salt can be extracted and recovered from desalinated water with 12% salt content, and then used to pickle pickles.

2) The water consumed by the present invention is about 0.5-1 ton per ton of pickled food. Taking an enterprise with an annual output of 15,000 tons of pickled food as an example, 98.75% of water can be saved, and the cost of water consumption is 15,000 yuan/ton Years, plus the cost of desalted water treatment by resource recovery agencies at 120 yuan/ton, a total of 900,000 yuan/year, the total cost is 915,000 yuan/year, minus the 120kg/ton of salt extracted by resource recovery agencies (a total of 900 tons/ In 2009, the annual salt recycling cost was 720,000 yuan), the annual desalination production cost was only 195,000 yuan, and the cost saving ratio was 83%/year.

Description of drawings

The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment of the present invention:

Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 are structural schematic diagrams of the present invention.

Detailed ways

Referring to Fig. 5, the airtight chamber 1 of the present invention communicates with the vacuum compression pump 2, the feed valve 3, the discharge valve 4 and the drain valve 5 respectively, and the drain valve 5 communicates with the second water inlet valve 12, the second brine tank 13, the second Two water outlet valves 14, water inlet pumps 9, multiway pipes 11 are arranged between the drain valve 5 and the second water inlet valve 12, and the multiway pipes 11 communicate with the drain valve 5 and the second water inlet valve 12, and the multiway pipes 11 communicate in turn The third water inlet valve 6, the third brine tank 7, the third water outlet valve 8, and the water inlet pump 9; the multi-way pipe 11 is sequentially connected to the first water inlet valve 20, the first brine tank 21, the first water outlet valve 22, resource recovery Mechanism 18, water feed pump 19, fourth water inlet valve 15, fourth salt water tank 16, fourth water outlet valve 17, water inlet pump 9, water supply pipe 23 communicates with the fourth water inlet valve 15 through water feed valve 10; drain valve 5 and multiple There is a desalinated water circulation mechanism between the pipes 11; the desalinated water circulation mechanism is that the circulation pump 24 is connected to the drain valve 5 and the multi-way pipe 11, and the multi-way pipe 11 is connected to the flushing valve 25 and the discharge valve 4 in sequence. Stirrer 26 with blade 27, sealed chamber 1 communicates with decompression valve 28.

The following embodiments assume that the initial states of the vacuum compression pump, circulating pump, water inlet pump, feed water pump, mixer and all valves are closed.

Embodiments 1-5 are embodiments of the desalination device of the present invention.

Embodiment 1: See Figure 1, open the feed valve 3, put the pickled food and desalted water into the sealed chamber 1, and turn on the vacuum compression pump 2 to desalt the pickled food at least once, and the desalination time for any one time is 3-30 minutes , preferably 10 minutes, the ratio of the parts by weight of the pickled food to the salt content in the desalted water in any one desalination process is 1:0.2-0.8, preferably 1:0.5, the ratio of the parts by weight of the pickled food to the desalted water is 1:0.5-1.5, preferably 1:1. If the expected desalination index is achieved, turn off the vacuum compression pump 2, open the drain valve 5 to discharge the desalted water, open the discharge valve 4 to take out the pickled food, and then close the drain valve 5 and the discharge valve 4 to complete a desalination, otherwise it is necessary to use Desalting the pickled food with desalinated water less than the salt content of the pickled food after this desalination is performed multiple times.

In this embodiment, the pickled food can be desalted at least once until the technical index of the salt content of the pickled food is met by the national standard or industry standard.

Embodiment 2: Referring to Fig. 2, on the basis of embodiment 1, this embodiment adds a brine tank (the second brine tank 13), which can inject the desalted water that has desalted the pickled food in the sealed chamber 1 In the brine tank, it is drawn into the sealed chamber 1 through the water inlet pump 9 for the desalination of the next batch of pickled foods.

Embodiment 3: Referring to Fig. 3, on the basis of Embodiment 2, this embodiment adds a multi-way pipe 11, and a brine tank (the third brine tank 7) is set through the multi-way pipe 11, and the sealed chamber can also be The desalted salt water that has been desalinated from the pickled food in 1 is poured into the brine tank, and is drawn into the sealed chamber 1 by the water inlet pump 9 for desalination of the next batch of pickled food.

Embodiment 4: Referring to Fig. 4, on the basis of Embodiment 3, a brine tank (the first brine tank 21) is also provided through the multi-way pipe 11 in this embodiment, which can remove the pickled food in the sealed chamber 1. The salted desalinated water is injected into the brine tank, and the brine is separated by the resource recovery mechanism 18. The extracted salt can be used to marinate pickled food, and the extracted water is pumped into another brine tank by the feed water pump 19 (fourth brine tank 16), and then pumped into the sealed chamber 1 through the water inlet pump 9 for the desalination of the next batch of pickled foods.

Embodiment 5: Referring to FIG. 5, on the basis of Embodiment 4, a desalinated water circulation mechanism is set between the drain valve 5 and the multi-way pipe 11. The desalinated water circulation mechanism is that the circulation pump 24 communicates with the drain valve 5 and the multi-way Pipe 11, multi-way pipe 11 is connected to seal chamber 1 and/or circulating pump 24 is connected to drain valve 5 and multi-way pipe 11, and multi-way pipe 11 is connected to flush valve 25 and discharge valve 4 in turn, and can be used to turn on vacuum compression pump 2 In the process of desalting pickled food, the desalinated water circulation mechanism is opened to strengthen the activity of desalinated water, so as to improve the uniformity of desalination of pickled food.

Embodiments 6-10 are examples of the desalination method corresponding to Embodiments 1-5 of the present invention.

Embodiment 6: Referring to Figure 1, open the feed valve 3, and blend the desalinated water, that is, evenly stir the salt and desalinated water (edible pipeline water) with a salt content of 0%, and inject it into the sealed chamber with a flow meter of the prior art In 1, measure the salt content of the pickled food with a salinity meter of the prior art, weigh the pickled food and place the pickled food in the sealed chamber 1, and turn on the vacuum compression pump 2 to desalinate the pickled food at least once , the desalination time for any one time is 3-30 minutes, preferably 10 minutes, and the ratio of the parts by weight of the pickled food to the salt content in the desalted water in any one desalination process is 1:0.2-0.8, preferably 1:0.5, the pickled food The ratio of parts by weight to desalinated water is 1:0.5-1.5, preferably 1:1. If pickled food with a salt content of 16% is taken, then the desalinated food with a salt content of 8% is used to treat the pickled food. Desalting, after this desalination, the weight parts of salt in pickled food and desalted water are both (16+8)/2=12 parts (12Kg), that is, the salt content of pickled food and desalted water is 12%, and pickled food The parts by weight of water and water are 100 parts (100 Kg). If the expected desalination index is achieved, turn off the vacuum compression pump 2, open the drain valve 5 to discharge the desalted water, open the discharge valve 4 to take out the pickled food, and then close the drain valve and the discharge valve to complete desalination once, otherwise it will take less than this The desalination of the salt content in the pickled food after the first desalination is performed on the pickled food for many times until the expected desalination index is achieved.

Example 7: Referring to Figure 2, on the basis of Example 6, the salt content of the first desalination, the second desalination or the third desalination in Example 1 is respectively 12% and 8%. Or 4% desalinated water is stored in the brine tank (the second brine tank 13) for desalting the next batch of pickled food.

Embodiment 8: Referring to Fig. 3, on the basis of Embodiment 2, this embodiment adds a brine tank (the third brine tank 7) through the multi-way pipe 11, and desalination for the first time and second time in Embodiment 1 Desalination or desalination for the third time generates desalted water with a salt content of 12%, 8% or 4% and is stored in a brine tank for use in desalting the next batch of pickled foods.

Embodiment 9: Referring to Fig. 4, on the basis of Embodiment 3, a brine tank (the first brine tank 21) is set up through the multi-way pipe 11 in this embodiment, so that the pickled food in the sealed chamber 1 can be detached. The salted desalinated water is injected into the brine tank, and the brine is separated by the resource recovery mechanism 18. The extracted salt can be used to marinate pickled food, and the extracted water is pumped into another brine tank by the feed water pump 19 (fourth brine tank 16), and then pumped into the sealed chamber 1 through the water inlet pump 9 for the desalination of the next batch of pickled foods.

Embodiment 10: Referring to Fig. 5, this embodiment further describes the present invention in detail by desalting the pickled food with a salt content of 16% into a pickled food with a salt content of 4%, and opening the feed valve 3, Blending desalinated water, that is, 8 Kg of salt and 100 Kg of 0% desalinated water (edible pipeline water) are evenly stirred to generate desalinated water with a salt content of 8% (that is, in 108 parts by weight Among them, the parts by weight of salt are 8 parts, and the parts by weight of desalted water are 100 parts.) And use the flowmeter of prior art to inject in the sealed chamber 1 through feed valve 3, measure sauce with the salinity meter of prior art For the salt content of the pickled food, get the pickled food with a salt content of 16% (that is, in 116 parts by weight, the parts by weight of salt are 16 parts, and the parts by weight of the pickled food are 100 parts.) Put it into the sealed chamber 1 through the feed valve 3, turn on the vacuum compression pump 2 to desalinate the pickled food for the first time, and open the desalinated water circulation mechanism to strengthen the activity of desalinated water and improve the uniformity of desalination of the pickled food . The first desalination time is 10 minutes, the salt content of the pickled food after the first desalination is reduced to (16+8)/2=12%, open the drain valve 5 and the first water inlet valve 20, and reduce the salt content to 12% desalinated water is injected into the first brine tank 21, and then the brine is separated by the resource recovery mechanism 18. The resource recovery mechanism 18 can separate and extract 12 parts by weight (12Kg) of salt and 100 parts by weight (100Kg) of salt The salt content is 0% desalinated water, the separated and extracted salt can be used to marinate pickled food, and the separated and extracted 100 parts by weight of water is pumped to the fourth brine tank 16 by the feed water pump 19, and then passed through the water inlet pump 9 It is extracted into the airtight chamber 1 for the third desalination of the next batch of pickled food.

Blend the desalted water with a salt content of 4% and inject it into the sealed chamber 1, and turn on the vacuum compression pump 2 to desalt the pickled food with a salt content of 12% for the second time. The second desalination time is 10 minutes, and the second desalination After the salt content of the pickled food is reduced to (12+4)/2=8%, the drain valve 5 and the second water inlet valve 12 are opened, and the desalted water with a salt content of 8% is injected into the second salt water tank 13, and then It is drawn into the sealed chamber 1 through the water inlet pump 9 for the first desalination of the next batch of pickled food.

Take desalted water with a salt content of 0% (edible pipeline water) and inject it into the sealed chamber 1, and turn on the vacuum compression pump 2 to desalinate the pickled food with a salt content of 8% for the third time, and the third desalination time is 10 minutes , the salt content of the pickled food after the third desalination is reduced to (8+0)/2=4%, the drain valve 5 and the third water inlet valve 6 are opened, and the desalted water with a salt content of 4% is injected into the third The brine tank 7 is drawn into the sealed chamber 1 through the water inlet pump 9, so that the next batch of pickled foods can be desalinated for the second time. So far, the expected desalination index of desalting the pickled food with a salt content of 16% into the pickled food with a salt content of 4% has been achieved, the vacuum compression pump 2 and the desalinated water circulation mechanism are closed, and the drain valve 5 is opened to discharge the desalted water , open the discharge valve 4 to take out the pickled food and then close the drain valve and the discharge valve to complete the whole desalination process.

The desalinated water (edible pipeline water) with a salt content of 0% used for the third desalination in this embodiment can also be opened to the water supply valve 10, and the fourth water inlet valve 15 is injected into the fourth brine tank 16 through the water inlet pipe 23, and then passed through the water inlet pump 9 into the sealed chamber 1.

The desalination method of the present invention includes, but is not limited to, the use of the desalination device of the present invention.

The above-mentioned embodiments are further detailed descriptions of the present invention, and it should not be considered that the above-mentioned embodiments have exhausted all the embodiments of the present invention. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction, replacement, and exchange can also be made, which should be regarded as belonging to the protection scope of the claims of the present invention.

Claims (10)

1. The food desalter 1. a kind of sauce salts down, it is characterized in that：Its gas-tight silo（1）It is respectively communicated with vacuum compression pump（2）, inlet valve （3）, blow-off valve（4）And drain valve（5）.
2. The food desalter 2. a kind of sauce according to claim 1 salts down, it is characterized in that：Drain valve（5）It is sequentially communicated second Inlet valve（12）, the second brine tank（13）, the second outlet valve（14）, intake pump（9）, gas-tight silo（1）.
3. The food desalter 3. a kind of sauce according to claim 2 salts down, it is characterized in that：Drain valve（5）With the second inlet valve （12）Between be equipped with more siphunculus（11）, more siphunculus（11）Communicated drainage valve（5）With the second inlet valve（12）, more siphunculus（11）Successively It is connected to third inlet valve（6）, third brine tank（7）, third outlet valve（8）And intake pump（9）.
4. The food desalter 4. a kind of sauce according to claim 3 salts down, it is characterized in that：More siphunculus（11）It is sequentially communicated first Inlet valve（20）, the first brine tank（21）, the first outlet valve（22）, resource reclaim mechanism（18）, feed pump（19）, the 4th water inlet Valve（15）, the 4th brine tank（16）, the 4th outlet valve（17）, intake pump（9）, feed pipe（23）Through water-supply valve（10）Connection the Four inlet valves（15）.
5. The food desalter 5. a kind of sauce according to claim 4 salts down, it is characterized in that：Drain valve（5）With more siphunculus（11） Between be equipped with desalination water circulation mechanism, desalination water circulation mechanism be circulating pump（24）Communicated drainage valve（5）With more siphunculus（11）, more Siphunculus（11）Communication seals storehouse（1）And/or circulating pump（24）Communicated drainage valve（5）With more siphunculus（11）, more siphunculus（11）Successively It is connected to flashing valve（25）, blow-off valve（4）.
6. The food desalination process 6. a kind of sauce salts down, it is characterized in that it includes the following steps：Open inlet valve（3）, by sauce salt down food and Desalted water is placed in gas-tight silo（1）It is interior, close inlet valve（3）, open vacuum compression pump（2）, the sauce food that salts down is at least carried out once Desalination, an arbitrary desalination time are 3-30 minute, and sauce salts down salt content in food and desalted water in an arbitrary desalination processes The ratio between parts by weight be 1：0.2-0.8, salt down the ratio between the parts by weight of food and desalted water of sauce are 1：0.5-1.5, at least one After secondary desalination, vacuum compression pump is closed（2）, open drain valve（5）Blow-off valve is opened after discharge desalted water（4）Discharge sauce salts down food Product close blow-off valve（40 and drain valve（5）.
7. The food desalination process 7. a kind of sauce according to claim 6 salts down, it is characterized in that：Open drain valve（5）After open Two inlet valves（12）, to the second brine tank（13）Drain valve is closed after injection desalted water（5）With the second inlet valve（12）, open the Two outlet valves（14）, intake pump（9）To gas-tight silo（1）The second outlet valve is closed after interior injection desalted water（14）, intake pump（9）.
8. The food desalination process 8. a kind of sauce according to claim 7 salts down, it is characterized in that：Open drain valve（5）After open Three inlet valves（6）, through more siphunculus（11）To third brine tank（7）Drain valve is closed after injection desalted water（5）With third inlet valve （6）, open third outlet valve（8）, intake pump（9）Third outlet valve is closed after injecting desalted water to gas-tight silo 1（8）, intake pump （9）.
9. The food desalination process 9. a kind of sauce according to claim 8 salts down, it is characterized in that：Open drain valve（5）After open One inlet valve（20）, through more siphunculus（11）To the first brine tank（21）Drain valve is closed after injection desalted water（5）With the first water inlet Valve（20）, open the first outlet valve（22）With the 4th inlet valve（15）, desalted water is through resource reclaim mechanism（18）After processing, by giving Water pump（19）It extracts desalted water and injects the 4th brine tank（16）After close the first outlet valve（22）With the 4th inlet valve（15）, or open Open water-supply valve（10）, the 4th inlet valve（15）, feed pipe（23）To the 4th brine tank（16）Water-supply valve is closed after injection desalted water （10）, the 4th inlet valve（15）The 4th outlet valve is opened afterwards（17）, intake pump（9）To gas-tight silo（1）It is closed after injection desalted water 4th outlet valve（17）, intake pump（9）.
10. The food desalination process 10. a kind of sauce according to claim 9 salts down, it is characterized in that：Open vacuum compression pump（2）After open Open drain valve（5）, circulating pump（24）, flashing valve（25）So that desalted water self sealss storehouse（1）, drain valve（5）, circulating pump（24）、 More siphunculus（11）, flashing valve（25）, blow-off valve（4）It is back to gas-tight silo（1）And/or open drain valve（5）, circulating pump（24）, Make desalted water self sealss storehouse（1）, drain valve（5）, circulating pump（24）, more siphunculus（11）It is back to gas-tight silo（1）, close vacuum Compression pump（2）After close drain valve（5）, circulating pump（24）, flashing valve（25）.