Simple small-sized vacuumizing electrolyte adding device

Abstract

The utility model belongs to the technical field of electrolyte adding devices, and relates to a simple small-sized vacuumizing electrolyte adding device which comprises an acid containing measuring cylinder, an acid injection pipe, a first storage tank, a second storage tank, a water pump, a first connecting pipe and a second connecting pipe, the acid injection pipe is connected below the acid containing measuring cylinder through an acid injection valve, and the second storage tank is arranged above the first storage tank. The bottom side portion of the first storage tank is communicated with the bottom side portion of the second storage tank through a first connecting pipe, the water pump is arranged on the first connecting pipe, an exhaust port is formed in the top end of the second storage tank, an emptying pipe is arranged on the top side portion of the first storage tank, an emptying valve is arranged on the emptying pipe, and the end, away from the first storage tank, of the emptying pipe is communicated with an acid injection pipe through a second connecting pipe. The second connecting pipe is arranged above the emptying pipe, and a vacuum pressure gauge and an air exhaust check valve are arranged on the second connecting pipe. The device is simple in structure and convenient to move, electrolyte can be independently added to a single-cell battery in a vacuum mode, and verification of early-stage data of the battery is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolyte adding devices, and in particular relates to a simple and small vacuum electrolyte adding device. Background Art

[0002] When testing and verifying start-stop valve-regulated batteries, power EVF batteries, and energy storage batteries, it is necessary to use a large number of single-cell batteries for preliminary data verification. The existing vacuum electrolyte adding equipment mostly adds electrolyte to 6 cells at the same time, and it is impossible to add electrolyte to a single cell separately. In addition, the electrolyte adding machine is large and cannot be moved, which is very inconvenient to use in the preliminary data verification stage.

[0003] Therefore, it is urgent for those skilled in the art to develop a small and simple vacuum-pumping and electrolyte-adding device that is convenient to move. Utility Model Content

[0004] The purpose of this utility model is to solve the above technical problems, and its technical solution is:

[0005] A simple small-scale vacuum electrolyte adding device comprises an acid measuring cylinder and an acid injection pipe, wherein the acid injection pipe is connected to the bottom of the acid measuring cylinder through an acid injection valve, and an acid injection port is provided at the bottom of the acid injection pipe, and further comprises a first storage tank, a second storage tank, a water pump, a first connecting pipe and a second connecting pipe, wherein the second storage tank is arranged above the first storage tank, and the bottom side of the first storage tank is connected to the bottom side of the second storage tank through the first connecting pipe, the water pump is arranged on the first connecting pipe, an exhaust port is provided at the top of the second storage tank, an emptying pipe is provided at the top side of the first storage tank, an emptying valve is provided on the emptying pipe, and the outlet of the emptying valve is higher than the top of the first storage tank, an end of the emptying pipe away from the first storage tank is connected to the acid injection pipe through the second connecting pipe, and the second connecting pipe is arranged above the emptying pipe, a vacuum pressure gauge and an air extraction check valve are provided on the second connecting pipe, and the air extraction check valve is arranged close to the acid injection pipe.

[0006] Preferably, a sewage outlet is also provided at the bottom side of the first storage tank, and a sewage valve is provided on the sewage outlet to facilitate sewage discharge when cleaning the first storage tank and the second storage tank.

[0007] Preferably, the first connecting tube is a transparent steel wire hose, and the two ends of the first connecting tube are detachably connected to the first storage tank and the second storage tank respectively, which is convenient for observing the liquid in the tube and facilitating the separate movement of the first storage tank and the second storage tank, thereby improving the flexibility of the movement of the device.

[0008] Preferably, the first storage tank and / or the second storage tank is a transparent storage tank, which is convenient for observing the injection status of the liquid in the tank.

[0009] The utility model also includes other components that enable a simple small vacuum pumping and electrolyte adding device to be used normally, all of which are conventional means in the field. In addition, devices or components not limited in the utility model, such as an acid measuring cylinder, a water pump, an acid injection valve, an emptying valve, an air extraction check valve and a sewage valve, all adopt the existing technology in the field.

[0010] The working principle of the utility model is that when in use, the acid injection valve and the air extraction check valve are first closed, and the drain valve is opened, liquid is added to the second storage tank through the exhaust port of the second storage tank, and the liquid enters the first storage tank through the first connecting pipe until the first storage tank is full of liquid (when the drain valve discharges water outward, it indicates that the first storage tank is full), the injection hole of the sample to be filled with electrolyte is sealed and connected with the acid injection port of the acid injection pipe, and then the drain valve is closed and the air extraction check valve and the water pump are opened, so that the liquid in the first storage tank is discharged into the second storage tank through the first connecting pipe to realize hydraulic vacuum, and when the pressure gauge value of the vacuum pressure gauge meets the expected vacuum value, the air extraction check valve is closed and the water pump is stopped, and then the electrolyte to be added is placed in the acid measuring cylinder, the acid injection valve is opened (opening angle 45°~70°), the electrolyte is added to the sample, and the sample can be removed after filling.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the device has a simple structure and is easy to move, and can add electrolyte to single-cell batteries individually under vacuum, thereby facilitating the verification of preliminary data of start-stop valve-controlled batteries, power EVF batteries and energy storage batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model in Example 1. DETAILED DESCRIPTION

[0013] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Example 1

[0015] like Figure 1As shown, a simple small-scale vacuum electrolyte adding device proposed in this embodiment includes an acid measuring cylinder 1 and an acid injection pipe 2, wherein the acid injection pipe is connected to the bottom of the acid measuring cylinder through an acid injection valve 3, and an acid injection port 4 is provided at the bottom of the acid injection pipe, and also includes a first storage tank 5, a second storage tank 6, a water pump 7, a first connecting pipe 8 and a second connecting pipe 9, wherein the second storage tank is arranged above the first storage tank, and the bottom side of the first storage tank is connected to the bottom side of the second storage tank through the first connecting pipe, the water pump is arranged on the first connecting pipe, an exhaust port 10 is provided at the top of the second storage tank, an emptying pipe 11 is provided at the top side of the first storage tank, an emptying valve 12 is provided on the emptying pipe, and the outlet of the emptying valve is higher than the top of the first storage tank, the end of the emptying pipe away from the first storage tank is connected to the acid injection pipe through the second connecting pipe, and the second connecting pipe is arranged above the emptying pipe, a vacuum pressure gauge 13 and an air extraction check valve 14 are provided on the second connecting pipe, and the air extraction check valve is arranged close to the acid injection pipe.

[0016] Specifically, a sewage outlet is also provided at the bottom side of the first storage tank, and a sewage valve 15 is provided on the sewage outlet to facilitate sewage discharge when cleaning the first storage tank and the second storage tank.

[0017] Example 2

[0018] The only difference between this embodiment and embodiment 1 is that the first connecting tube is a transparent steel wire hose, and the two ends of the first connecting tube are detachably connected to the first storage tank and the second storage tank respectively, so as to facilitate observation of the liquid in the tube and to facilitate the separate movement of the first storage tank and the second storage tank, thereby improving the flexibility of the movement of the device.

[0019] Example 3

[0020] In this embodiment, based on the second embodiment, both the first storage tank and the second storage tank are set as transparent storage tanks, so as to facilitate the observation of the injection status of the liquid in the tanks.

[0021] The working principle of the utility model is that when in use, the acid injection valve and the air extraction check valve are first closed, and the drain valve is opened, liquid is added to the second storage tank through the exhaust port of the second storage tank, and the liquid enters the first storage tank through the first connecting pipe until the first storage tank is full of liquid (when the drain valve discharges water outward, it indicates that the first storage tank is full), the injection hole of the sample to be filled with electrolyte is sealed and connected with the acid injection port of the acid injection pipe, and then the drain valve is closed and the air extraction check valve and the water pump are opened, so that the liquid in the first storage tank is discharged into the second storage tank through the first connecting pipe to realize hydraulic vacuum, and when the pressure gauge value of the vacuum pressure gauge meets the expected vacuum value, the air extraction check valve is closed and the water pump is stopped, and then the electrolyte to be added is placed in the acid measuring cylinder, the acid injection valve is opened (opening angle 45°~70°), the electrolyte is added to the sample, and the sample can be removed after filling.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A simple small vacuum electrolyte adding device, comprising an acid measuring cylinder and an acid injection tube, wherein the acid injection tube is connected to the bottom of the acid measuring cylinder through an acid injection valve, and an acid injection port is provided at the bottom of the acid injection tube, characterized in that: It also includes a first storage tank, a second storage tank, a water pump, a first connecting pipe and a second connecting pipe. The second storage tank is arranged above the first storage tank, and the bottom side of the first storage tank is connected to the bottom side of the second storage tank through the first connecting pipe. The water pump is arranged on the first connecting pipe. The top of the second storage tank is provided with an exhaust port, and the top side of the first storage tank is provided with a drain pipe. The drain pipe is provided with a drain valve, and the outlet of the drain valve is higher than the top of the first storage tank. The end of the drain pipe away from the first storage tank is connected to the acid injection pipe through the second connecting pipe, and the second connecting pipe is arranged above the drain pipe. A vacuum pressure gauge and an air extraction check valve are provided on the second connecting pipe, and the air extraction check valve is arranged close to the acid injection pipe.

2. A simple small vacuum electrolyte adding device according to claim 1, characterized in that: The bottom side of the first storage tank is also provided with a sewage outlet, and the sewage outlet is provided with a sewage valve.

3. A simple small vacuum electrolyte adding device according to claim 1, characterized in that: The first connecting tube is a transparent steel hose, and both ends of the first connecting tube are detachably connected to the first storage tank and the second storage tank respectively.

4. A simple small vacuum electrolyte adding device according to claim 1, characterized in that: The first storage tank and / or the second storage tank is a transparent storage tank.

Images