CN106166312B - Small-sized A concentrates liquid feed device and method - Google Patents

Abstract

The invention provides a small A concentrated liquid supply device and method. The small A concentrated liquid supply device includes a liquid inlet pipe, a liquid distribution container, a liquid mixing pipe, a liquid storage container, and a liquid supply pipe connected in sequence, and the first liquid suction pump and the second liquid suction pump respectively connected to the liquid mixing pipe. liquid suction pump, the third liquid suction pump; the liquid mixing container is provided with a liquid mixing device, and the liquid mixing device stirs and prepares sodium chloride raw material and purified water to form a sodium chloride solution; the liquid mixing container passes through the first The liquid suction pump and the liquid mixing pipe are connected to the liquid storage container, the liquid inlet pipe is connected to the liquid mixing pipe through the third liquid suction pump, and the second liquid suction pump delivers the ionic liquid to the liquid mixing pipe, The liquid supply pipe of the liquid storage container is connected to the hemodialysis machine. The pure sodium chloride solution is obtained through the liquid mixing device and double-layer filtration, and the A concentrated liquid is obtained in real time with the work of multiple suction pumps. The whole process is fully automated, efficient and convenient.

Description

Small A concentrated liquid supply device and method

technical field

The invention relates to the technical field of dialysis solution preparation, in particular to a small A concentrated liquid supply device and method.

Background technique

Due to the deterioration of kidney function in uremia patients, the acid-base balance in the body is disrupted, resulting in severe metabolic acidosis. One of the functions of dialysis treatment is to correct acidosis, therefore, the dialysate contains 30-38mmol/l bicarbonate. The dialysis concentrate containing bicarbonate is called B concentrate (Bicarbonate), and the concentrate containing other ions is called A concentrate (Acetate). The dialysate is diluted with water in a certain proportion from A concentrate and B concentrate to make.

In 2011, the statistics released by the Nephrology Branch of the Chinese Medical Association for the first time showed that there are more than 270,000 registered uremic dialysis patients in my country, and the average age of uremic dialysis patients is 53 years old, which is younger than the dialysis patients in Japan and the United States. More than 10 years old. Statistics show that by the end of last year, except for the Tibet Autonomous Region, 3,587 blood purification centers in all provinces, autonomous regions, and municipalities across the country had registered 221,628 hemodialysis patients. However, the existing dialysis dry powder products are single and layered, and it is difficult to maintain a competitive advantage for a long time. Therefore, it is necessary to realize the upgrade of dry powder products with independent intellectual property rights, less machine dialysis and competitiveness, and to increase multi-level products to suit different customers.

In the traditional technology, the hemodialysis machine has on-line B powder and on-line sodium chloride, of which sodium chloride accounts for more than 90% of the dry powder weight. On-line B powder and on-line sodium chloride greatly save the transportation volume brought by the use of A concentrate, The problem of transportation costs has eased the limitation of insufficient hospital warehouses, and solved the problem of labor intensity for female nurses in hospitals to carry concentrated solutions. The existing on-line sodium chloride dissolving device uses purified water to fill the dry powder cartridge to form a saturated solution, which is filled with water while sucking out the solution under the action of the suction pump of the hemodialysis machine. The operation is cumbersome, which is not conducive to the production and use of A concentrated solution.

Contents of the invention

Based on this, it is necessary to provide a small A concentrated liquid supply device and method for the existing on-line sodium chloride dissolving device which is cumbersome to operate and is not conducive to the production and use of A concentrated liquid.

Its technical scheme is as follows:

A small A concentrated liquid supply device, comprising a liquid inlet pipe, a liquid mixing container, a liquid mixing pipe, a liquid storage container, a liquid supply pipe connected in sequence, and a first liquid suction pump and a second liquid suction pump respectively connected to the liquid mixing pipes. Two liquid suction pumps and a third liquid suction pump; the liquid mixing container is provided with a liquid mixing device, and the liquid mixing device stirs and prepares sodium chloride raw material and purified water to form a sodium chloride solution; the liquid mixing container passes through the first A liquid suction pump and a liquid mixing pipe are connected to the liquid storage container, the liquid inlet pipe is connected to the liquid mixing pipe through the third liquid suction pump, and the second liquid suction pump delivers ionic liquid to the liquid mixing pipe , the liquid supply tube of the liquid storage container is connected to the hemodialysis machine.

Its further technical scheme is described below:

Further, the liquid distribution container includes a first liquid distribution chamber and a second liquid distribution chamber which are isolated from each other, and the first liquid distribution chamber and the second liquid distribution chamber are arranged up and down;

The liquid distribution container is also provided with a first respirator and a lower liquid valve, the first liquid distribution chamber communicates with the outside world through the first respirator, and the first liquid distribution chamber is connected to the The second liquid distribution chamber.

Further, a liquid dispensing barrel is provided inside the liquid dispensing container, and the liquid dispensing barrel divides the liquid dispensing container into the first liquid dispensing chamber and the second liquid dispensing chamber;

The liquid dispensing barrel has a side wall, the side wall surrounds and forms a first liquid distributing chamber, and the lower liquid valve is arranged on the side wall of the liquid distributing barrel.

Further, the liquid dispensing barrel is a filter barrel with small holes uniformly provided on the bottom and side walls.

Further, the liquid distribution container further includes a one-way valve and a water supply valve arranged on the liquid inlet pipe, and the one-way valve and the water supply valve are connected to the first liquid distribution chamber;

And a liquid level detection device arranged on the side wall of the liquid distribution container, the liquid level detection device is used to detect the highest scale and the lowest scale of the liquid level of the liquid distribution container, the liquid level detection device and the water supply valve are mutually Cooperate with the control of purified water entering the first liquid distribution chamber.

Further, the liquid storage container also includes a liquid supply detection device for detecting the liquid level of the liquid storage container, and the liquid supply detection device cooperates with the liquid level detection device to control the first liquid suction pump, the second Suction pump, the third suction pump.

Further, it also includes an emptying pipe and a cleaning device, the emptying pipe is used for emptying the liquid mixing container and the liquid mixing pipe, and the cleaning device is used for manual or automatic cleaning of the A concentrate liquid supply device.

In addition, the present invention also provides a method for making a small A concentrate, comprising the following steps:

Obtain a certain amount of sodium chloride raw material and purified water, stir and prepare to form a sodium chloride solution, and store it in a liquid mixing container;

The sodium chloride solution is delivered from the liquid mixing container to the mixed liquid pipe by the first liquid suction pump, and the purified water in the liquid inlet pipe is transported to the mixed liquid pipe by the third liquid suction pump. The suction pump transports the ionic liquid to the mixed liquid pipe, controls the sodium chloride solution, the purified water in the liquid inlet pipe and the ionic liquid to mix in a certain proportion to form the A concentrated liquid, and transports it to the liquid storage container middle;

The liquid storage container is connected to the hemodialysis machine through a liquid supply tube, and the A concentrated solution is delivered to the hemodialysis machine.

Further, after the step of obtaining a certain amount of sodium chloride raw material and purified water, preparing and forming a sodium chloride solution by stirring, and storing it in a liquid mixing container, it also includes:

Start the lower liquid valve, and under the action of the first respirator on the first liquid distribution chamber, control the flow of the sodium chloride solution from the first liquid distribution chamber of the liquid distribution container to the second liquid distribution chamber.

Further, the step process of obtaining a certain amount of sodium chloride raw material and purified water, preparing a sodium chloride solution by stirring, and storing it in a liquid mixing container also includes:

Start the liquid level detection device to detect whether the current liquid level of the liquid distribution container exceeds the preset maximum scale. When the liquid level of the liquid distribution container is not higher than the maximum scale, open the water supply valve to control the purified water to enter the first a liquid chamber;

When the liquid level of the liquid distribution container is higher than the maximum scale, close the water supply valve.

Further, the step of controlling the mixing of the sodium chloride solution, the purified water in the liquid inlet pipe and the ionic liquid in a certain proportion to form the concentrated liquid A, and transporting it to the liquid storage container also includes:

Start the liquid level detection device to detect whether the liquid level of the current liquid distribution container is lower than the preset minimum scale. When the liquid level of the liquid distribution container is not lower than the minimum scale, the liquid supply sent by the liquid supply detection device is obtained signal to start the first liquid suction pump, the second liquid suction pump and the third liquid suction pump;

When the liquid level of the liquid preparation container is lower than the minimum scale, the first liquid suction pump, the second liquid suction pump and the third liquid suction pump are controlled to stop.

The small A concentrated liquid supply device and method provided by this technical solution fully stir the sodium chloride raw material and purified water in the liquid mixing container through the liquid mixing device, and use the upper and lower layered filtration inside the liquid mixing container to obtain relatively pure chlorine. Sodium chloride solution, combined with suction pump, liquid level detection device and liquid supply detection device, makes the configured sodium chloride solution mixed with ionic liquid and purified water in real time in the mixing tube to prepare A concentrated solution, and enters the storage solution container for use in hemodialysis machines. The whole process is fully automatic, and the production device controls the startup and shutdown of the suction pump in real time according to the capacity of the stored sodium chloride solution and the prepared concentrated solution A, so as to maximize the efficiency.

Description of drawings

Fig. 1 is a schematic structural diagram of the principle structure of the small A concentrated liquid supply device described in the embodiment of the present invention;

Fig. 2 is a front view partial cross-sectional structural schematic diagram of the small A concentrated liquid supply device described in the embodiment of the present invention;

Fig. 3 is a left view structural schematic diagram of the small A concentrate liquid supply device described in the embodiment of the present invention;

Fig. 4 is a top view structural schematic diagram of the small A concentrated liquid supply device described in the embodiment of the present invention;

5 is a schematic diagram of the three-dimensional structure of the liquid dispensing barrel of the small A concentrated liquid supply device described in the embodiment of the present invention;

Fig. 6 is a schematic block diagram of the steps of the production method of the small-scale A concentrated solution according to the embodiment of the present invention.

Explanation of reference signs:

100-liquid inlet pipe, 110-one-way valve, 120-water supply valve, 200-liquid mixing container, 210-liquid mixing device, 220-first liquid level detection mechanism, 230-second liquid level detection mechanism, 240-first Respirator, 250-lower liquid valve, 201-first liquid distribution chamber, 202-second liquid distribution chamber, 300-mixing pipe, 310-first liquid suction pump, 312-filter, 320-second liquid suction pump , 330-the third liquid suction pump, 400-liquid storage container, 410-second respirator, 420-liquid supply detection device, 500-liquid supply pipe, 510-liquid supply valve, 600-empty pipe, 610-row Empty valve, 700-dosing barrel, 800-device bracket.

Detailed ways

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, the present invention provides a small A concentrated liquid supply device, which includes a liquid inlet pipe 100, a liquid distribution container 200, a liquid mixing pipe 300, a liquid storage container 400, and a liquid supply pipe 500 connected in sequence, And the first liquid suction pump 310 , the second liquid suction pump 320 , and the third liquid suction pump 330 respectively connected to the liquid mixing pipe 300 . The sodium chloride raw material and purified water for preparing the sodium chloride solution are delivered to the liquid mixing container 200 through the liquid inlet pipe 100, and the sodium chloride solution is prepared in the liquid mixing container 200 and delivered to the liquid mixing pipe by the first liquid suction pump 310 In 300, the second liquid suction pump 320 delivers the ionic liquid to the liquid mixing pipe 300, and the third liquid suction pump 330 delivers purified water to the liquid mixing pipe 300, and in the liquid mixing pipe 300, sodium chloride solution, ionic liquid (including H ⁺ , Ca ²⁺ , K ⁺ , Mg ²⁺ , CH ₃ COO ⁻ and other ionic liquids) and purified water are mixed according to a certain ratio to obtain concentrated liquid A, and stored in the liquid storage container 400 . At the same time, the sodium chloride solution is further processed by using the functions of the three liquid suction pumps and the liquid mixing pipe 300 to realize the preparation and storage of the concentrated liquid A.

The liquid mixing container 200 is connected to the liquid storage container 400 through the first liquid suction pump 310 and the liquid mixing pipe 300. Under the action of the first liquid suction pump 310, the sodium chloride solution first flows into the liquid mixing pipe 300 from the liquid mixing container 200, and then before entering the liquid storage container 400; and the upper part of the liquid inlet pipe 100 is connected to the liquid mixing pipe 300 through the third liquid suction pump 330, and the water supply valve 120 can be used to transfer part of the purified water delivered to the liquid mixing container 200 to the mixed liquid In the pipe 300 ; the ionic liquid is transported to the liquid mixing pipe 300 by the second liquid suction pump 320 . In this embodiment, the three suction pumps are connected to the liquid mixing pipe 300 sequentially, so the sodium chloride solution is mixed with the ionic liquid first, and then mixed with the purified water that comes in later, so as to speed up the uniform mixing speed of the mixed solution. Moreover, the liquid mixing tube 300 is set in a curved shape, so that the sodium chloride solution, the ionic liquid and the purified water are fully mixed to form the concentrated liquid A. The liquid storage container 400 is connected to the hemodialysis machine through the liquid supply tube 500, and the prepared concentrated solution A can be directly transported to the hemodialysis machine for absorption. The whole process is fully automatic, and the liquid supply device controls the start and stop of the three suction pumps in real time according to the capacity of the stored sodium chloride solution and the prepared A concentrate, so as to maximize the efficiency.

Moreover, a liquid mixing device 210 is provided in the liquid mixing container 200 . In one embodiment, a stirrer can be selected as the liquid mixing device, and the liquid mixing device 210 will add the sodium chloride raw material and purified water in the liquid mixing container 200 from the top of the liquid mixing container 200 through the liquid inlet pipe 100, and stir and prepare to form a certain concentration of sodium chloride solution, and the upper layer of sodium chloride solution is a saturated solution. Of course, in another embodiment, a magnetic stirrer can also be used for electromagnetic stirring, and the magnetic stirrer can stir the upper layer solution to accelerate the dissolution of sodium chloride, so that the sodium chloride raw material and purified water can be stirred and prepared to form chlorine sodium chloride solution. And the stirring bar on the magnetic stirrer can be set separately, and the stirring bar is made of polytetrafluoroethylene material, which has anti-corrosion function.

Moreover, in this implementation, the liquid distribution container 200 includes a first liquid distribution chamber 201 and a second liquid distribution chamber 202 that are isolated from each other, and the first liquid distribution chamber 201 and the second liquid distribution chamber 202 are arranged up and down. The liquid distribution container 200 is also provided with a lower liquid valve 250 and a first respirator 240, the first respirator 240 is arranged on the top of the liquid distribution container 200, and the first liquid distribution chamber 201 passes through the first The respirator 240 communicates with the outside world. By adding a first respirator 240 to the liquid mixing container 200 to ensure that there is air flow in and out of the container and the liquid flows smoothly, the solution can be smoothly flowed into the liquid mixing tube 300 . The first liquid distribution chamber 201 is connected to the second liquid distribution chamber 202 through the lower liquid valve 250, and the lower liquid valve 250 cooperates with the first respirator 240 to ensure that the solution in the first liquid distribution chamber 201 The liquid is normally injected into the second liquid distribution chamber 202 .

In addition, the liquid distribution container 200 is provided with a liquid distribution barrel 700, and the liquid distribution container 700 is divided into a first liquid distribution chamber 201 and a second liquid distribution chamber 202. The liquid distribution barrel 700 has a side The first liquid distribution chamber 201 is formed around the side wall. In one embodiment, the lower liquid valve 250 is disposed on the side wall of the liquid dispensing barrel 700 . In another embodiment, as shown in FIG. 5 , the liquid dispensing barrel 700 is a filter barrel with small holes uniformly provided on the bottom and side walls, so that it is convenient for the device to carry out the second liquid dispensing chamber 202 after the stirring is completed. Once filtered, the solid impurities brought by the sodium chloride raw material are blocked in the liquid mixing barrel 700, thereby obtaining a purer sodium chloride solution.

In addition, the liquid distribution container 200 also includes a one-way valve 110 and a water supply valve 120 arranged on the liquid inlet pipe 100. The one-way valve 110 is provided to ensure that the liquid is only fed into the liquid distribution container 200 from the top of the liquid inlet pipe 100, and not The liquid dispensing container 200 will overflow to the top of the liquid inlet pipe 100 from below. The water supply valve 120 can adjust the size of the liquid inlet flow rate to ensure that the liquid dosing is uniform and the speed is controllable. In addition, between the connection between the liquid distribution container 200 and the first liquid suction pump 310, it is generally considered to add a small filter 312, and a filter is also provided between the liquid distribution container 200 and the first liquid suction valve 310 312, which can be used to filter impurities and large sodium chloride particles in the sodium chloride solution delivered to the mixing pipe 300. The sodium chloride solution can be filtered twice by setting the filter 312 to obtain a purer sodium chloride solution and improve the quality of the product.

In addition, the liquid distribution container 200 also includes a liquid level detection device arranged on the side wall of the liquid distribution container 200, the liquid inlet pipe 100 is not only connected with the first liquid distribution chamber 201, but also connected with the third suction Liquid pump 330 is connected. Therefore, on the one hand, the liquid inlet pipe 100 can directly provide purified water to the liquid mixing pipe 300, and on the other hand, it can also provide sufficient purified water for preparing the sodium chloride solution to the liquid mixing container 200 at the same time, so as to optimize the configuration of the device. The liquid level detection device includes a first liquid level detection mechanism 220 for detecting the highest scale of the liquid level of the liquid distribution container 200, and a second liquid level detection mechanism 230 for detecting the lowest scale of the liquid level of the liquid distribution container 200, Cooperate with the water supply valve 120 to control the purified water to enter the first liquid distribution chamber 201, and control whether the purified water in the liquid inlet pipe 100 is added by constantly detecting the liquid level of the solution in the liquid distribution barrel 700, making the device more intelligent.

In addition, the liquid storage container 400 also includes a liquid supply detection device 420 for detecting the liquid level of the liquid storage container. The liquid supply detection device 420 cooperates with the liquid level detection device to control the first liquid suction pump 310, the second Second liquid suction pump 320, third liquid suction pump 330. Moreover, the liquid storage container 400 also includes a second breather 410 arranged on the top of the liquid storage container 400, by adding a second breather 410 on the liquid storage container 400, to ensure that there is air flow in and out of the container, ensuring The smooth flow of the liquid means that the solution can flow out from the liquid supply pipe 500 smoothly. In addition, the liquid storage container 400 also includes an emptying tube 600 disposed at the bottom of the liquid storing container 400 , an emptying valve 610 disposed on the emptying pipe 600 , and an emptying valve 610 disposed inside the liquid storing container 400 . cleaning device. Cooperating with the second respirator, the emptying tube 600 can be used to empty the solution in the liquid mixing container 200 and the liquid mixing tube 300 . The cleaning device is used for manual or automatic cleaning of the liquid supply device. After using the device, part of the sodium chloride solution and filtered solid impurities will remain in the liquid mixing container 200; at the same time, there will be some unused concentrated liquid A in the liquid mixing tube 300, which will react and form crystals if it is not removed in time . The above-mentioned emptying pipe 600 can preferably discharge the residual liquid, and clean it with a cleaning device.

In addition, as shown in Figures 2 to 4, in practice, in order to optimize the structure of the device and make the setting more reasonable, the device can also be equipped with a special device bracket 800, which is welded by 1mm thick 304 stainless steel pipes, and The liquid dispensing container 200 and the liquid storage container 400 are assembled in the device support 800 , and three suction pumps are welded on one side of the device support 800 . Wherein, the liquid dispensing container 200 and the liquid storage container 400 can be injection molded using PE material. In this embodiment, the first liquid suction pump 310, the second liquid suction pump 320, and the third liquid suction pump 330 can all be set as peristaltic pumps, that is, the three liquid suction pumps can be micro peristaltic pumps driven by stepping motors. . In this embodiment, the water supply valve 120, the liquid lower valve 250, etc. generally use electromagnetic valves with high sensitivity.

In addition, as shown in Figure 6, the present invention also provides a method for supplying a small A concentrated liquid, comprising the following steps:

S100, obtaining a certain amount of sodium chloride raw material and purified water, stirring and preparing to form a sodium chloride solution, and storing it in the liquid preparation container 200;

Further, in step S100, the following steps are also included:

S110. Open the top cover of the liquid mixing container 200, unpack the sodium chloride solid and pour it into the liquid mixing container 200, then cover the top cover of the liquid mixing container 200, start the main power switch, and then start the small A concentration liquid supply device;

S120, start the liquid level detection device, and use the first liquid level detection mechanism 220 to detect whether the current liquid level of the liquid distribution container 200 exceeds the preset maximum scale, when the liquid level of the liquid distribution container 200 is not higher than the maximum scale , that is, when purified water is not detected by the first liquid level detection mechanism 220, and when the lower liquid valve 250 remains closed, the water supply valve 110 on the liquid inlet pipe 100 is opened to control the purified water to enter the first liquid distribution container 200. Liquid distribution chamber 201; when the first liquid level detection mechanism 220 detects that the current liquid level of the liquid distribution container 200 reaches or exceeds the preset maximum scale, close the water supply valve 110 to stop water intake;

S130, start the liquid mixing device 210 arranged at the bottom of the liquid mixing container 200, that is, start the magnetic stirrer to stir in the liquid mixing container 200, the magnetic stirrer can stir the upper layer solution of the first liquid mixing chamber 201 to accelerate the solid dissolution of sodium chloride, Form the sodium chloride solution of required concentration; In the present embodiment, can start the magnetic stirrer and stop after stirring for 6 minutes;

S140, start the lower liquid valve 250, and under the action of the first respirator 240 on the first liquid distribution chamber 201, control the flow of the sodium chloride solution from the first liquid distribution chamber 201 of the liquid distribution container 200 to the second liquid distribution Cavity 202, that is to say, the prepared sodium chloride solution flows from the liquid mixing barrel 800 of the liquid mixing container 200 into the lower layer of the liquid mixing barrel 800; and, when continuing the following step S200, cycle to step S120.

S200. Transport the sodium chloride solution from the liquid mixing container 200 to the mixing pipe 300 through the first liquid suction pump 310, and transport the purified water in the liquid inlet pipe 100 to the liquid mixing pipe 300 through the third liquid suction pump 330. In the liquid mixing pipe 300, the ionic liquid is transported to the liquid mixing pipe 300 through the second liquid suction pump 320, and the sodium chloride solution, the purified water in the liquid inlet pipe 100 and the ionic liquid are controlled to mix in a certain proportion to form the A concentrated solution, and delivered to the liquid storage container 400;

Further, in step S200, the following steps are also included:

S210. Start the second liquid level detection mechanism 230 of the liquid level detection device to detect whether the current liquid level of the liquid distribution container 200 is lower than the preset minimum scale. When the liquid level of the liquid distribution container 200 is not lower than the minimum Scale, obtain the liquid supply signal sent by the liquid supply detection device 420, start the first liquid suction pump 310, the second liquid suction pump 320 and the third liquid suction pump 330;

That is, after receiving the liquid supply signal, and the second liquid level detection mechanism 230 detects that there is liquid in the second liquid distribution chamber 202, the first liquid suction pump 310 is started to pump the sodium chloride solution in the second liquid distribution chamber 202 into the liquid mixing pipe 300, start the second liquid suction pump 320 to pump other ionic liquids into the liquid mixing pipe 300 at the same time, make the sodium chloride solution mix with the ionic liquid first, and then start the third liquid suction pump 330 to pass through the liquid inlet pipe 100 Transport the purified water to the liquid mixing pipe 300, mix it with the sodium chloride solution and the ionic liquid in a certain proportion, and then enter the liquid storage container 400;

S220. When the second liquid level detection mechanism 230 detects that the liquid level of the liquid dispensing container 200 is lower than the minimum scale, control the first liquid suction pump 310, the second liquid suction pump 320 and the third liquid suction pump 330 shutdown. That is, after the second liquid level detection mechanism 230 detects that there is no liquid in the second liquid distribution chamber 202, the first liquid suction pump 310, the second liquid suction pump 320, and the third liquid suction pump 330 stop; and return to step S100, continue Dosing.

S300, the liquid storage container 400 is connected to the hemodialysis machine through the liquid supply tube 500, and delivers the concentrated solution A to the hemodialysis machine.

Further, in step S300, the following steps are also included:

S310, the hemodialysis machine starts to absorb liquid from the liquid storage container 400, and opens the liquid supply valve 510 on the liquid supply pipe 500 to start liquid supply; meanwhile, the liquid supply detection device 420 monitors the liquid level in the liquid storage container 400, When the liquid level in the liquid storage container 400 reaches the alarm level, loop to step S200 to continue mixing;

S320. When the hemodialysis machine has not sucked liquid for more than 15 minutes, the entire liquid supply device is automatically or by the operator; moreover, when the system is closed, the emptying operation is performed automatically by using the emptying pipe 600: that is, the water supply valve 120 is closed first. , and open the lower liquid valve for 2 minutes, turn on the first liquid suction pump 310 until the second liquid level detection mechanism 230 stops when no liquid is detected, and open the discharge pipe 600 while the first liquid suction pump 310 is turned on. Empty valve 610, close the empty valve 610 after 5 minutes of emptying.

In the technical solution provided by the present invention, the sodium chloride raw material and purified water are fully stirred in the liquid mixing container 200 by a liquid mixing device to obtain a relatively pure sodium chloride solution, and the configured sodium chloride solution is obtained by cooperating with a liquid suction pump. In the liquid mixing tube 300, it is mixed with the ionic liquid and purified water in real time to prepare concentrated liquid A, and enters the liquid storage container 400 for use in the hemodialysis machine. The whole process is fully automatic, and the production device controls the startup and shutdown of the suction pump in real time according to the capacity of the stored sodium chloride solution and the prepared concentrated solution A, so as to maximize the efficiency.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (9)

1. a kind of small-sized A concentrates liquid feed device, which is characterized in that including the inlet tube, liquid dispensing container, mixed liquid being sequentially communicated Pipe, liquid storage container, liquid supply pipe, and be connected respectively with the mixed liquid pipe the first suction pumps, the second suction pumps, third imbibition Pump；

The liquid dispensing container is equipped with mixer, and chlorination sodium raw materials and purified water stirring are prepared and form chlorination by the mixer Sodium solution；The liquid dispensing container is connected to the liquid storage container by first suction pumps, mixed liquid pipe, and the inlet tube passes through The third suction pumps are connected to the mixed liquid pipe, and second suction pumps convey ionic liquid to the mixed liquid pipe, the liquid storage The liquid supply pipe of container is connected to haemodialysis control unit；

The liquid dispensing container includes mutually isolated the first liquid distribution cavity, the second liquid distribution cavity, and first liquid distribution cavity is matched with second Sap cavity is setting up and down；

The liquid dispensing container is additionally provided with the first respirator and lower liquid valve, first liquid distribution cavity by first respirator with External world's connection, first liquid distribution cavity are connected to second liquid distribution cavity by the lower liquid valve；

The liquid dispensing container further includes the check valve and feed water valve being set on the inlet tube, the check valve and feed water valve with First liquid distribution cavity is connected.

2. small-sized A concentrates liquid feed device according to claim 1, which is characterized in that be equipped with and match in the liquid dispensing container Liquid bucket, it is described that liquid dispensing container is divided into first liquid distribution cavity and second liquid distribution cavity with liquid bucket；

It is described with liquid bucket to there is side wall, the side wall ring to be set to described with liquid bucket around the first liquid distribution cavity, the lower liquid valve is formed Side wall on.

3. small-sized A concentrates liquid feed device according to claim 2, which is characterized in that the liquid bucket of matching is bottom and side Wall is uniformly provided with the filter vat of aperture.

4. small-sized A concentrates liquid feed device according to claim 1, which is characterized in that the liquid dispensing container further includes setting The liquid level detection device being placed on the liquid dispensing container side wall, the liquid level detection device is for detecting liquid dispensing container liquid level most High scale and minimum scale, the liquid level detection device enter first with feed water valve mutual cooperation control purified water and match liquid Chamber.

5. small-sized A concentrates liquid feed device according to claim 4, which is characterized in that the liquid storage container further includes using In the feed flow detection device of detection liquid storage container liquid level, the feed flow detection device cooperates with liquid level detection device and controls institute State the first suction pumps, the second suction pumps, third suction pumps.

6. a kind of small-sized A concentrates liquor manufacture method, which is characterized in that include the following steps：

A certain amount of chlorination sodium raw materials and purified water are obtained, stirring prepares and forms sodium chloride solution, and is stored in liquid dispensing container；

The sodium chloride solution is delivered to from the liquid dispensing container in mixed liquid pipe by the first suction pumps, passes through third imbibition The purified water of inlet tube is delivered in the mixed liquid pipe by pump, and ionic liquid is delivered to the mixed liquid pipe by the second suction pumps In, it controls and forms the A concentrations after purified water and ionic liquid in the sodium chloride solution, inlet tube are mixed in a certain ratio Liquid, and be transported in liquid storage container；

The liquid storage container is connected by liquid supply pipe with haemodialysis control unit, and conveys the A concentrates to the haemodialysis control unit In.

7. small-sized A according to claim 6 concentrates liquor manufacture method, which is characterized in that obtaining a certain amount of sodium chloride Raw material and purified water form sodium chloride solution by stirring to prepare, and after the step of being stored in liquid dispensing container, further include：

Start lower liquid valve to control the sodium chloride solution under the action of the first respirator on the first liquid distribution cavity and from liquid hold First liquid distribution cavity of device flows to the second liquid distribution cavity.

8. small-sized A according to claim 7 concentrates liquor manufacture method, which is characterized in that it is former to obtain a certain amount of sodium chloride Material and purified water form sodium chloride solution by stirring to prepare, and the step process for being stored in liquid dispensing container further includes：

Start liquid level detection device, whether the liquid level for detecting current liquid dispensing container is more than preset highest scale, matches liquid when described The liquid level of container is not higher than the highest scale, opens feed water valve, and control purified water enters first liquid distribution cavity；

When the liquid dispensing container liquid level be higher than the highest scale, close the feed water valve.

9. small-sized A according to claim 6 concentrates liquor manufacture method, which is characterized in that control the sodium chloride solution, into Purified water and ionic liquid in liquid pipe form the A concentrates after being mixed in a certain ratio, and are transported to the step in liquid storage container Suddenly process further includes：

Start liquid level detection device, whether the liquid level for detecting current liquid dispensing container is less than preset minimum scale, matches liquid when described The liquid level of container is not less than the minimum scale, gets the feed flow signal that feed flow detection device is sent out, and starts described first and inhales Liquid pump, the second suction pumps and third suction pumps；

When the liquid level of the liquid dispensing container is less than the minimum scale, control first suction pumps, the second suction pumps and third Suction pumps are shut down.