阅读说明：本技术 收液系统及收液方法 (Liquid collecting system and liquid collecting method ) 是由 邱立国 周理 张文科 廖文杰 于 2020-05-14 设计创作，主要内容包括：本发明公开了一种收液系统,包括：集液管,用于收集电解液源中排出的电解液；集液箱,与集液管通过第三控制阀连接,电解液经由集液管排放至集液箱中；负压源,与集液箱连接；应用本发明的收液系统,能够实现自动收集电解液并能快速调整收集电解液时的收液状态,本发明还公开一种收液方法。(The invention discloses a liquid receiving system, comprising: the liquid collecting pipe is used for collecting the electrolyte discharged from the electrolyte source; the liquid collecting box is connected with the liquid collecting pipe through a third control valve, and the electrolyte is discharged into the liquid collecting box through the liquid collecting pipe; the negative pressure source is connected with the liquid collecting tank; the liquid receiving system can automatically collect the electrolyte and quickly adjust the liquid receiving state when the electrolyte is collected.)

1. A fluid collection system, comprising:

a collector tube (410) for collecting the electrolyte discharged from the electrolyte source (420);

a header tank (430) connected to the header pipe (410) by a third control valve (230), the electrolyte being discharged into the header tank (430) via the header pipe (410);

a negative pressure source (450) connected to the header tank (430).

2. The liquid collecting system according to claim 1, wherein the negative pressure source (450) is connected to the header tank (430) through a fifth control valve (250).

3. The liquid collection system of claim 2, further comprising a positive pressure source (100) connected to the header pipe (410) through a first control valve (210), the header tank (430) being connected to a vent (460) through a sixth control valve (260).

4. The liquid collecting system of claim 2, wherein both ends of the liquid collecting pipe (410) are connected with the liquid collecting tank (430) through a second control valve (220) and a third control valve (230), respectively, and one end of the liquid collecting pipe (410) far away from the second control valve (220) is connected with a liquid storage tank (440) through a fourth control valve (240).

5. The liquid collecting system of claim 4, characterized in that the header pipe (410) is connected to the positive pressure source (100) through a first control valve (210), one end of the header pipe (410) away from the positive pressure source (100) is connected to the header tank (430) through a third control valve (230), and the header tank (430) is connected to the exhaust port (460) through a sixth control valve (260).

6. The liquid collecting system of claim 2, wherein the liquid collecting tank (430) is connected with the liquid storage tank (440) through a seventh control valve (270), and a liquid level sensor (431) is arranged on the liquid collecting tank (430).

7. A liquid collecting method using the liquid collecting system as claimed in any one of claims 1 to 6, comprising the steps of:

collecting electrolyte, and opening a third control valve (230) to enable the electrolyte in the electrolyte source (420) to enter a liquid collecting pipe (410) under the action of a negative pressure source (450).

8. The method of claim 7, wherein the step of collecting electrolyte further comprises opening a fifth control valve (250).

9. The liquid collecting method according to claim 8, further comprising the steps of:

and the emptying pipeline closes the fifth control valve (250), opens the sixth control valve (260) and then opens the first control valve (210) after the liquid receiving system finishes liquid drainage, so that the electrolyte in the liquid collecting pipe (410) enters the liquid collecting tank (430) through the third control valve (230) under the positive pressure action of the positive pressure source (100).

10. The liquid collecting method according to claim 9, further comprising the steps of:

cleaning the pipeline, closing the third control valve (230), and opening the second control valve (220), the fourth control valve (240) and the fifth control valve (250), so that the cleaning liquid in the liquid storage tank (440) enters the liquid collecting pipe (410) under the negative pressure action of the negative pressure source (450);

and discharging waste liquid, closing the second control valve (220), the fourth control valve (240) and the fifth control valve (250), opening the third control valve (230) and the sixth control valve (260) and then opening the first control valve (210) after the cleaning liquid enters the liquid collecting pipe (410), so that the cleaning liquid in the liquid collecting pipe (410) enters the liquid collecting tank (430) under the positive pressure effect of the positive pressure source (100).

Technical Field

The invention relates to the field of lithium battery component capacity, in particular to a liquid receiving system and a liquid receiving method.

Background

During the negative pressure formation process of the lithium battery, the gas-liquid filter at the storage position converts the aerial fog containing electrolyte in the negative pressure system pipeline into liquid state and separates the liquid state, the liquid is stored in the liquid storage tank of the gas-liquid filter, when the liquid storage tank is full of liquid, the liquid storage tank is manually operated by inspection personnel of a production line, and the liquid storage tank is limited in liquid collection work.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a liquid collecting system which can finish the discharge of electrolyte in a liquid storage tank of a gas-liquid filter and the centralized collection of the electrolyte without depending on manpower.

A liquid collecting system of an aspect of the present invention includes: the liquid collecting pipe is used for collecting the electrolyte discharged from the electrolyte source; the liquid collecting box is connected with the liquid collecting pipe through a third control valve, and the electrolyte is discharged into the liquid collecting box through the liquid collecting pipe; and the negative pressure source is connected with the liquid collecting tank.

Further, the negative pressure source is connected with the liquid collecting tank through a fifth control valve.

Furthermore, the liquid collecting system also comprises a positive pressure source connected with the liquid collecting pipe through a first control valve, and the liquid collecting tank is connected with the exhaust port through a sixth control valve.

Furthermore, the two ends of the liquid collecting pipe are respectively connected with the liquid collecting tank through a second control valve and a third control valve, and one end, far away from the second control valve, of the liquid collecting pipe is connected with the liquid storage tank through a fourth control valve.

Furthermore, the liquid collecting pipe is connected with a positive pressure source through a first control valve, one end, far away from the positive pressure source, of the liquid collecting pipe is connected with the liquid collecting box through a third control valve, and the liquid collecting box is connected with the exhaust port through a sixth control valve.

Furthermore, the liquid collecting box is connected with the liquid storage tank through a seventh control valve, and a liquid level sensor is arranged on the liquid collecting box.

Further, the liquid storage tank is connected with a liquid discharge valve.

The liquid receiving method of another aspect of the invention, which applies the liquid receiving system, comprises the following steps: collecting the electrolyte, and opening a third control valve to enable the electrolyte in the electrolyte source to enter the liquid collecting pipe under the action of the negative pressure source.

Further, the collecting the electrolyte step further includes opening a fifth control valve.

Further, the liquid receiving method also comprises the following steps: and the emptying pipeline closes the fifth control valve, opens the sixth control valve and then opens the first control valve after the liquid receiving system finishes liquid discharging, so that the electrolyte in the liquid collecting pipe enters the liquid collecting box through the third control valve under the positive pressure action of the positive pressure source.

Further, the liquid receiving method also comprises the following steps: cleaning the pipeline, closing the third control valve, and opening the second control valve, the fourth control valve and the fifth control valve to enable the cleaning liquid in the liquid storage tank to enter the liquid collecting pipe under the negative pressure action of the negative pressure source; and discharging waste liquid, closing the second control valve, the fourth control valve and the fifth control valve after the cleaning liquid enters the liquid collecting pipe, opening the third control valve and the sixth control valve, and then opening the first control valve, so that the cleaning liquid in the liquid collecting pipe enters the liquid collecting tank under the positive pressure action of the positive pressure source.

When the liquid collecting system is used, the liquid collecting pipes are matched with the pipeline system to be connected with the plurality of liquid discharging devices, then the pressure supply system and the liquid collecting pipes are communicated through the control valves, and electrolyte in the liquid collecting system enters the liquid collecting box through the liquid collecting pipes through the matching use of the pressure supply system and the control valves.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a liquid receiving system according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the connection of an electrolyte source and a collector tube in FIG. 1;

FIG. 3 is a schematic view of a second liquid-receiving system according to an embodiment of the present invention;

FIG. 4 is a schematic view of a third liquid-receiving system according to an embodiment of the present invention;

FIG. 5 is a schematic view of a fourth liquid-receiving system according to the embodiment of the present invention;

the above figures contain the following reference numerals.

Reference numerals	Name (R)	Reference numerals	Name (R)
				100	Positive pressure source	410	Liquid collecting pipe
210	First control valve	420	Electrolyte source
				220	Second control valve	421	Liquid discharge pipeline
230	Third control valve	422	Liquid discharging device
				240	Fourth control valve	430	Liquid collecting box
250	Fifth control valve	431	Liquid level sensor
				260	Sixth control valve	440	Liquid storage tank
270	Seventh control valve	450	Negative pressure source
				310	Drain valve	460	Exhaust port

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of illustrating the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the positional descriptions, such as the directions or positional relationships indicated above, below, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If there is a description of the first and second for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.