A desalination system for winter vegetables
By using soaking and filtration technology in the winter vegetable desalination system, the problems of salt diffusion and flavor substance retention during the desalination process of winter vegetables have been solved, achieving low-cost and efficient salt reduction and flavor preservation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-30
AI Technical Summary
Existing desalination technologies for winter vegetables present a contradiction between desalination efficiency and energy consumption. Furthermore, the desalination process can easily lead to the loss of flavor compounds, increasing production costs and damaging vegetable tissues.
The winter vegetable desalination system uses a process where the salt is diffused into the water by soaking the winter vegetables, and the salt and flavor substances are separated by a filtration mechanism. The process is repeated until the target salt concentration is reached, while retaining the flavor substances.
It effectively reduces the salt content of winter vegetables, retains flavor compounds, is easy to operate and inexpensive, and minimizes damage to vegetable cell structure.
Smart Images
Figure CN224420070U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of desalination equipment technology, and in particular to a desalination system for winter vegetables. Background Technology
[0002] Winter vegetables are a traditional fermented vegetable product, beloved by consumers for their unique flavor, rich nutrition, and long shelf life. However, in traditional processing, a large amount of salt (10%–15%) is typically added to winter vegetables to inhibit the growth of harmful microorganisms, promote the fermentation of beneficial bacteria, and enhance the product's flavor and texture. While high salt content extends the shelf life and gives winter vegetables their unique taste, excessive salt intake is closely related to the occurrence of chronic diseases such as hypertension, cardiovascular disease, and kidney disease. With the increasing health awareness of modern consumers, the demand for low-salt diets is growing. Therefore, how to effectively reduce the salt content of winter vegetables while maintaining their flavor and quality has become an important research direction in the food processing field.
[0003] Currently, desalination technologies for high-salt fermented vegetables mainly include ultrasonic-assisted desalination, vacuum permeation desalination, pulsed electric field desalination, and microbial or enzymatic desalination. Ultrasonic-assisted desalination utilizes cavitation to accelerate salt diffusion, significantly shortening desalination time; however, the equipment is expensive and may damage the integrity of the vegetable tissue. Vacuum permeation desalination promotes water exchange under negative pressure, increasing the desalination rate, but it also suffers from high equipment investment and energy consumption. Furthermore, pulsed electric field desalination and biological desalination technologies (such as treatment with salt-tolerant microorganisms or specific enzymes) are still in the laboratory research stage and have not yet been industrialized.
[0004] Although existing desalination technologies can reduce the salt content of winter vegetables to some extent, they still face many challenges: the contradiction between desalination efficiency and energy consumption: high-efficiency desalination technologies (such as ultrasonic and vacuum permeation) often rely on high-energy-consuming equipment, which increases production costs; loss of nutrition and flavor: during the desalination process, water-soluble flavor substances (such as free amino acids and organic acids) are easily lost along with the salt, resulting in a bland flavor in the product. Utility Model Content
[0005] The purpose of this invention is to provide a desalination system for winter vegetables to solve the problems existing in the prior art. It can effectively preserve the flavor substances in winter vegetables, and is simple to produce and low in cost.
[0006] To achieve the above objectives, this utility model provides the following solution:
[0007] This utility model provides a desalination system for winter vegetables, including a desalination mechanism, a water storage mechanism, and a filtration mechanism. The desalination mechanism includes a desalination tank and a desalination pump mechanism, with the desalination tank having a desalination cavity inside. The water storage mechanism includes a water storage tank and a water storage pump mechanism, with the water storage tank having a water storage cavity inside. The inlet of the desalination pump mechanism is connected to the outlet of the desalination cavity, and the outlet of the desalination pump mechanism is connected to the water storage cavity. The inlet of the water storage pump mechanism is connected to the outlet of the water storage cavity, and the outlet of the water storage pump mechanism... The output port is connected to the inlet of the filtration mechanism; the filtration mechanism is used to filter the solution flowing in from the inlet of the filtration mechanism, the filtration mechanism has a filtrate outlet and a concentrate outlet, and a filter medium is provided inside the filtration mechanism. The filtrate outlet is used to discharge liquid that has passed through the filter medium and contains salt; the concentrate outlet is used to discharge liquid that has not passed through the filter medium and contains flavor substances, and the concentrate outlet is connected to the water storage cavity through a filter return pipe; the water storage cavity is connected to the desalination cavity through a water storage pump return mechanism.
[0008] Preferably, it further includes a water supply mechanism for supplying sterile water. The output end of the water supply mechanism has a first branch pipe, a second branch pipe, and a third branch pipe. The end of the first branch pipe can communicate with the desalination cavity; the end of the second branch pipe can communicate with the water storage cavity; and the end of the third branch pipe can communicate with the backwash port of the filtration mechanism.
[0009] Preferably, the desalination tank is equipped with a desalination stirring device; the desalination stirring device includes a stirring motor, a stirring shaft and multiple stirring blades; the stirring motor is fixed to the upper outside of the desalination tank, the stirring shaft is rotatably disposed in the desalination cavity, each of the stirring blades is fixedly disposed on the stirring shaft, and the stirring shaft is fixedly connected to the output shaft of the stirring motor.
[0010] Preferably, a screw conveyor is provided at the bottom outlet of the desalination tank, and a solid-liquid separator is provided at the lower end of the screw conveyor. The solid separated by the solid-liquid separator is output from the solid output port, and the liquid separated by the solid-liquid separator enters the input port of the desalination pumping mechanism.
[0011] Preferably, both the desalination tank and the water storage tank are provided with sampling ports at their lower ends, and the sampling ports are provided with sampling valves that can be opened and closed.
[0012] Preferably, a pressure gauge is provided on the top of the desalination tank, and a desalination exhaust valve communicating with the desalination cavity is provided on the top of the desalination tank.
[0013] Preferably, the top of the desalination tank is provided with a feeding port for feeding materials, and the feeding port can be opened and closed.
[0014] Preferably, the water filling mechanism includes a purification device, the input port of which is connected to a tap water source, and the output port of which is connected to a main pipe, which is connected to the first branch pipe, the second branch pipe and the third branch pipe.
[0015] Preferably, the water storage pump return mechanism includes a water storage pump return pump and a pump return pipe. The inlet of the water storage pump return pump is connected to the water storage cavity, and the outlet of the water storage pump return pump is connected to the desalination cavity through the pump return pipe. A pump return flow meter is installed on the pump return pipe.
[0016] Preferably, the filtration mechanism is a cross-flow filter.
[0017] The present invention achieves the following technical advantages over the prior art:
[0018] The winter vegetable desalination system provided by this utility model first pours the collected winter vegetable raw materials into a desalination tank and adds sterile water, allowing the winter vegetables to soak in the water for several hours while monitoring the change in salt concentration in the water. During this period, the winter vegetables precipitate salt and flavor components (such as non-volatile water-soluble flavor substances (such as free amino acids, organic acids, etc.) and volatile substances such as esters, aldehydes, acids, etc.), initially reducing the salt concentration in the winter vegetables. After the salt concentration is reduced, the solution in the desalination tank is pumped into a storage tank through a desalination pumping mechanism, and then filtered through a filtration mechanism to further reduce the salt concentration. The flavor substances are then returned to the storage tank along with the liquid discharged from the concentrated liquid outlet via a filter return pipe, and finally pumped back by the storage tank mechanism. The vegetables are then pumped back into the desalination tank and soaked again. This process is repeated until the target salt concentration is reached. This achieves the goal of reducing the salt content of the winter vegetables while preserving their flavor compounds. Specifically, salt diffuses from the vegetable tissue into the water through osmotic pressure, effectively reducing the salt content of the winter vegetables. Compared to other physical desalination methods, water soaking is gentler and causes less damage to the vegetable cell structure, thus better preserving the flavor compounds in the winter vegetables. Water soaking desalination not only significantly reduces sodium ion content but also maximizes the retention of umami amino acids (such as glutamic acid and aspartic acid) and characteristic flavor compounds. In addition, proper water soaking can promote the dissolution of some bitter substances, improving the overall taste of the winter vegetables. The entire process is simple and inexpensive. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A schematic diagram of the overall structure of the winter vegetable desalination system provided by this utility model.
[0021] In the picture:
[0022] A00 - Main pipe; A01 - Second branch pipe; A02 - First branch pipe; A03 - Third branch pipe;
[0023] 101 - Sterile water main valve;
[0024] 200 - Filtration mechanism; 201 - Filtration backwash valve; 202 - Water storage pump outlet valve; 203 - Filtration return valve; 204 - Filtration waste liquid discharge control valve;
[0025] 300-Water storage tank; 301-Water storage inlet pressure valve; 302-Water storage vent valve; 303-Water storage pump outlet valve; 304-Water storage filter valve; 305-Water storage sampling valve; 306-Water storage pump return desalination valve; 307-Water storage pump return valve; 308-Pump return flow meter; 309-Pump return inlet pressure valve; 310-Water storage waste liquid discharge control valve;
[0026] 400-Desalination tank; 401-Desalination pump outlet; 402-First desalination pump outlet valve; 403-Desalination sampling valve; 404-Solid-liquid separator; 405-Screw conveyor; 406-Second desalination pump outlet valve; 407-Desalination exhaust valve; 408-Pressure gauge; 409-Agitator motor; 410-Feeding port; 411-Desalination inlet water pressure valve. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] The purpose of this invention is to provide a desalination system for winter vegetables to solve the problems existing in the prior art. It can effectively preserve the flavor substances in winter vegetables, and is simple to produce and low in cost.
[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0030] Example 1
[0031] This embodiment provides a desalination system for winter vegetables, such as... Figure 1As shown, the system includes a desalination mechanism for winter vegetables, a water storage mechanism, and a filtration mechanism 200. The desalination mechanism includes a desalination tank 400 and a desalination pump mechanism; the desalination tank 400 has a desalination cavity inside. The water storage mechanism includes a water storage tank 300 and a water storage pump mechanism; the water storage tank 300 has a water storage cavity inside. The inlet of the desalination pump mechanism is connected to the outlet of the desalination cavity, and the outlet of the desalination pump mechanism is connected to the water storage cavity. The inlet of the water storage pump mechanism is connected to the outlet of the water storage cavity, and the outlet of the water storage pump mechanism is connected to the inlet of the filtration mechanism 200. The filtration mechanism 200 is used to filter the vegetables produced by the filtration mechanism 200. The solution flowing into the inlet is filtered. The filtration mechanism 200 has a filtrate outlet and a concentrate outlet. The filtration mechanism 200 is equipped with a filter medium (filter cartridge). The filtrate outlet is used to discharge liquid that has passed through the filter medium and contains salt (i.e., salt can pass through the filter medium). The concentrate outlet is used to discharge liquid that has not passed through the filter medium and contains flavor substances (i.e., flavor substances cannot pass through the filter medium, and the flavor substances are too large to pass through). The concentrate outlet is connected to the water storage cavity through a filter return pipe (the filter return pipe is equipped with a filter return valve 203). The water storage cavity is connected to the desalination cavity through a water storage pump return mechanism.
[0032] The collected winter vegetable raw materials are first poured into a desalination tank 400 and sterile water is added, allowing the winter vegetables to soak in the water for several hours. The change in salt concentration in the water is monitored. During this period, the winter vegetables release salt and flavor compounds (such as non-volatile water-soluble flavor substances (e.g., free amino acids, organic acids, etc.) and volatile substances such as esters, aldehydes, and acids), initially reducing the salt concentration. After the salt concentration is reduced, the solution in the desalination tank 400 is pumped into a storage tank 300 through a desalination pumping mechanism. The solution then undergoes layer-by-layer filtration by a filtration mechanism 200 to further reduce the salt concentration. The flavor compounds are then returned to the storage tank 300 along with the liquid discharged from the concentrated liquid outlet via a filtration return pipe, and finally pumped back by the storage pumping mechanism. The vegetables are then pumped back into the desalination tank (400ml) and soaked again. This process is repeated until the target salt concentration is reached. This achieves the goal of reducing the salt content of the winter vegetables while preserving their flavor compounds. Specifically, salt diffuses from the vegetable tissue into the water through osmosis, effectively reducing the salt content. Compared to other physical desalination methods, water soaking is gentler, causes less damage to the vegetable cell structure, and better preserves the flavor compounds in the winter vegetables. Water soaking desalination not only significantly reduces sodium ion content but also maximizes the retention of umami amino acids (such as glutamic acid and aspartic acid) and characteristic flavor components. Furthermore, appropriate water soaking can promote the dissolution of some bitter substances, improving the overall taste of the winter vegetables. The entire operation is simple and inexpensive.
[0033] Specifically, the winter vegetable desalination system in this embodiment also includes the following other mechanisms:
[0034] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, it also includes a water supply mechanism for supplying sterile water. The output end of the water supply mechanism has a first branch pipe A02, a second branch pipe A01, and a third branch pipe A03. The end of the first branch pipe A02 can be connected to the desalination cavity; the end of the second branch pipe A01 can be connected to the water storage cavity; and the end of the third branch pipe A03 can be connected to the backwash port of the filter mechanism 200.
[0035] The following are the relevant instructions regarding the water supply mechanism:
[0036] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the water filling mechanism includes a purification device. The inlet of the purification device is connected to a tap water source, and the outlet of the purification device is connected to a main pipe A00. The main pipe A00 is connected to a first branch pipe A02, a second branch pipe A01, and a third branch pipe A03.
[0037] Specifically, a main pressure valve is installed on the connection pipeline between the purification device and the tap water source to regulate the pressure of the tap water; a sterile water main valve 101 is installed on the main pipe A00 to control the flow of sterile water in the main pipe A00.
[0038] Specifically, the first branch pipe A02, the second branch pipe A01, and the third branch pipe A03 are arranged in parallel; the first branch pipe A02 is also equipped with a desalination inlet pressure valve 411, which is used for the sterile water inlet of the desalination tank 400; the second branch pipe A01 is equipped with a storage water inlet pressure valve 301, which is used to control the pressure of the sterile water flowing into the storage tank 300. This part of the sterile water is used to dilute the solution containing salt and flavor components in the storage tank 300.
[0039] The following are the instructions regarding the setup of the desalination mechanism for winter vegetables:
[0040] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, a pressure gauge 408 is installed on the top of the desalination tank 400, and a desalination vent valve 407 communicating with the desalination cavity is also installed on the top of the desalination tank 400 (a desalination vent port is provided on the top of the desalination tank 400, and a desalination vent valve 407 is installed on the desalination vent port). When the internal air pressure of the desalination tank 400 is high, the desalination vent valve 407 can be opened to release some gas, thereby maintaining the internal air pressure of the desalination tank 400 stable; the pressure gauge 408 is used to monitor the internal pressure of the desalination tank 400.
[0041] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1As shown, the top of the desalination tank 400 is equipped with a feeding port 410 for feeding materials, which can be opened and closed. Workers can put winter vegetables into the desalination tank 400 through the feeding port 410.
[0042] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, a desalination stirring device is provided inside the desalination tank 400; the desalination stirring device includes a stirring motor 409, a stirring shaft and multiple stirring blades; the stirring motor 409 is fixed to the upper outside of the desalination tank 400, the stirring shaft is rotatably arranged in the desalination cavity, each stirring blade is fixedly arranged on the stirring shaft, and the stirring shaft is fixedly connected to the output shaft of the stirring motor 409.
[0043] Specifically, the desalination stirring device is used to stir the solution inside the desalination tank 400. The stirring motor 409 can be started to drive the stirring blades to rotate, thereby ensuring thorough and uniform stirring of the solution inside the desalination tank 400.
[0044] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, a screw conveyor 405 is installed at the bottom outlet of the desalination tank 400. A solid-liquid separator 404 is installed at the lower end of the screw conveyor 405. The solid separated by the solid-liquid separator 404 is output from the solid output port, and the liquid separated by the solid-liquid separator 404 enters the input port of the desalination pump mechanism. The screw conveyor 405 includes a screw conveyor motor and a screw shaft. A screw blade is fixed on the screw shaft. The solid-liquid separator 404 is a filter screen. The output shaft of the screw conveyor motor is fixedly connected to the screw shaft. The screw shaft and the screw blade are located inside the bottom opening of the desalination tank 400. The filter screen is provided with through holes for the screw shaft to pass through. The fixed output port is located on one side above the filter screen.
[0045] Specifically, the entire process is repeated several times until the salt concentration reaches the target requirement, at which point filtration is stopped. Then, the dehydrated winter vegetables are transported to the packaging line for packaging via a screw conveyor 405 and a solid-liquid separator 404.
[0046] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, both the desalination tank 400 and the water storage tank 300 are equipped with sampling ports at their lower ends, and the sampling ports are equipped with sampling valves that can be opened and closed.
[0047] Specifically, a first desalination pump valve 402 is provided on the connecting pipe (i.e., the first desalination pump pipe) between the outlet of the lower end of the desalination tank 400 and the inlet of the desalination pump mechanism (which consists of a first desalination pump outlet pipe, a desalination pump outlet 401, and a second desalination pump outlet pipe connected in sequence); a second desalination pump outlet valve 406 is provided on the second desalination pump outlet pipe.
[0048] Specifically, a first sampling branch pipe is installed on the outlet pipe of the first desalination pump, and a desalination sampling valve 403 is installed on the first sampling branch pipe.
[0049] The following are the relevant instructions regarding the setup of the water storage mechanism:
[0050] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the water storage pump return mechanism includes a water storage pump return pump 307 and a return pipe. The inlet of the water storage pump return pump 307 is connected to the water storage cavity (the outlet at the bottom of the water storage cavity is connected to the water storage pump return pump 307 through the water storage pump return desalination pipe, which is equipped with a water storage pump return desalination valve 306). The outlet of the water storage pump return pump 307 is connected to the desalination cavity through the return pipe, which is equipped with a return flow meter 308. The return flow meter 308 can detect the flow rate. A return inlet pressure valve 309 is installed on the return pipe, which can control the pressure of the solution from the water storage tank 300.
[0051] Specifically, after filtration by the filtration unit 200, the solution in the storage tank 300 is pumped back into the desalination tank 400. The desalination stirring device is started to mix the winter vegetables and the filtered salt solution again; the pressure change in the desalination tank 400 is observed, and the samples are taken from the sampling port of the desalination tank 400 at regular intervals. The desalination process lasts for several hours.
[0052] Specifically, the top of the water storage tank 300 is provided with a water storage vent, and a water storage vent valve 302 is provided on the water storage vent. Opening the water storage vent valve 302 can release some of the gas inside the water storage tank 300, thereby maintaining the stability of the internal air pressure of the water storage tank 300.
[0053] Specifically, the water storage pumping mechanism includes a water storage pump 303 and a water storage pump pipe, and a water storage pump valve 202 is installed on the water storage pump pipe.
[0054] Specifically, a second sampling branch pipe is installed at the bottom outlet of the water storage tank 300, and a water storage sampling valve 305 is installed on the second sampling branch pipe. The original liquid in the water storage tank 300 can be taken out by opening the water storage sampling valve 305 and subjected to corresponding tests.
[0055] Specifically, the bottom outlet of the water storage tank 300 is connected to the water pump outlet 303 through a water storage filter pipe, and a water storage filter valve 304 is installed on the water storage filter pipe.
[0056] The following are the settings instructions for the filter mechanism 200:
[0057] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the filtration mechanism 200 is a cross-flow filter.
[0058] Specifically, a filter backwash valve 201 is installed on the third branch pipe A03.
[0059] Specifically, the filtrate outlet of the filtration mechanism 200 is connected to the discharge main pipe A00 through the filtration waste liquid pipe, the water storage pump outlet pipe is connected to the discharge main pipe A00 through the water storage waste liquid pipe, the water storage waste liquid pipe can also be equipped with a water storage waste liquid discharge control valve 310, and the filtration waste liquid pipe is equipped with a filtration waste liquid discharge control valve 204.
[0060] Regarding other related settings:
[0061] Specifically, after completing one round of desalination of winter vegetables, the filter backwash valve 201 can be opened and the water storage pump outlet valve 202 can be closed to backwash the filter mechanism 200. This can ensure the repeated use of the membrane and the filtration efficiency.
[0062] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A winter greens desalination system characterized by: This includes a desalination mechanism for winter vegetables, a water storage mechanism, and a filtration mechanism; The desalting mechanism for winter vegetables includes a desalting tank and a desalting pumping mechanism, wherein the desalting tank has a desalting cavity inside. The water storage mechanism has a water storage tank and a water pumping mechanism, and the water storage tank has a water storage cavity inside. The inlet of the desalination pumping mechanism is connected to the outlet of the desalination cavity, and the outlet of the desalination pumping mechanism is connected to the water storage cavity; the inlet of the water storage pumping mechanism is connected to the outlet of the water storage cavity, and the outlet of the water storage pumping mechanism is connected to the inlet of the filtration mechanism. The filtration mechanism is used to filter the solution flowing in through the inlet of the filtration mechanism. The filtration mechanism has a filtrate outlet and a concentrate outlet, and a filter medium is provided inside the filtration mechanism. The filtrate outlet is used to discharge the liquid that has passed through the filter medium and contains salt. The concentrate outlet is used to discharge the liquid that has not passed through the filter medium and contains flavor substances. The concentrate outlet is connected to the water storage cavity through a filter return pipe. The water storage cavity is connected to the desalination cavity through a water storage pump return mechanism.
2. The winter greens desalination system of claim 1, wherein: It also includes a water supply mechanism for supplying sterile water, and the output end of the water supply mechanism has a first branch pipe, a second branch pipe and a third branch pipe; The end of the first branch pipe can communicate with the desalination cavity; The end of the second branch pipe can communicate with the water storage cavity; The end of the third branch pipe can be connected to the backwash port of the filter mechanism.
3. The winter greens desalination system of claim 1, wherein: The desalination tank is equipped with a desalination stirring device; The desalination stirring device includes a stirring motor, a stirring shaft, and multiple stirring blades; the stirring motor is fixed to the upper exterior of the desalination tank, the stirring shaft is rotatably disposed inside the desalination cavity, each of the stirring blades is fixedly disposed on the stirring shaft, and the stirring shaft is fixedly connected to the output shaft of the stirring motor.
4. The winter greens desalination system of claim 1, wherein: The bottom outlet of the desalination tank is equipped with a screw conveyor, and the lower end of the screw conveyor is equipped with a solid-liquid separator. The solid separated by the solid-liquid separator is output from the solid output port, and the liquid separated by the solid-liquid separator enters the input port of the desalination pumping mechanism.
5. The winter greens desalination system of claim 1, wherein: Both the desalination tank and the water storage tank are equipped with sampling ports at their lower ends, and the sampling ports are equipped with sampling valves that can be opened and closed.
6. The winter vegetable desalination system according to claim 1, characterized in that: The top of the desalination tank is equipped with a pressure gauge, and the top of the desalination tank is also equipped with a desalination exhaust valve that communicates with the desalination cavity.
7. The winter vegetable desalination system according to claim 1, characterized in that: The desalination tank is equipped with a feeding port on its top, which can be opened and closed.
8. The winter vegetable desalination system according to claim 2, characterized in that: The water supply mechanism includes a purification device. The input port of the purification device is connected to a tap water source, and the output port of the purification device is connected to a main pipe. The main pipe is connected to the first branch pipe, the second branch pipe, and the third branch pipe.
9. The winter vegetable desalination system according to claim 1, characterized in that: The water storage pump return mechanism includes a water storage pump return pump and a pump return pipe. The inlet of the water storage pump return pump is connected to the water storage cavity, and the outlet of the water storage pump return pump is connected to the desalination cavity through the pump return pipe. A pump return flow meter is installed on the pump return pipe.
10. The winter vegetable desalination system according to claim 1, characterized in that: The filtration mechanism is a cross-flow filter.