CN211025321U

CN211025321U - Sulfuric acid filtering device for lead-acid storage battery

Info

Publication number: CN211025321U
Application number: CN201921344952.XU
Authority: CN
Inventors: 王丽
Original assignee: Chaowei Power Group Co Ltd
Current assignee: Chaowei Power Group Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-07-17
Anticipated expiration: 2029-08-19

Abstract

The utility model belongs to the technical field of battery manufacturing, a sulfuric acid filtering device for a lead-acid storage battery is disclosed, which comprises a suction filtration component and a plurality of filter bottles, wherein each filter bottle is communicated with the suction filtration component, the opening part of each filter bottle is hermetically connected with a filter, the suction filtration component is used for accelerating the filtering speed, the suction filtration component can simultaneously carry out suction filtration on the plurality of filter bottles, the filtration of the plurality of filter bottles is carried out simultaneously, and the filtering efficiency can be improved; a liquid outlet has been seted up to the bottom of filter flask, and lead acid battery is with sulphuric acid filter equipment still includes a liquid main line and a plurality of liquid branch pipeline of going out, and the liquid outlet of the filter flask that corresponds is connected to the one end of every liquid branch pipeline, and the other end all communicates with liquid main line, and the filtrating in every filter flask flows from the liquid branch pipeline that corresponds separately to converge in liquid main line, finally by the outflow of liquid main line, can collect the filtrating of a plurality of filter flasks.

Description

Sulfuric acid filtering device for lead-acid storage battery

Technical Field

The utility model relates to a battery preparation technical field especially relates to a sulphuric acid filter equipment for lead acid battery.

Background

When the storage battery is manufactured, the redundant sulfuric acid in the battery needs to be extracted after the charging and discharging of the battery are finished, and the extracted sulfuric acid can be recycled after being qualified through inspection. One of the very important indicators is the iron content. Generally, the detection of iron content is a more traditional method: the method is characterized in that a tester samples the sample to a laboratory for detection, the extracted sulfuric acid is very turbid, impurities cannot be directly tested, the sample needs to be filtered, the detection process is to filter the sample by using filter paper, and the filtered clear liquid is subjected to a series of treatments and then is subjected to iron content test by using an atomic absorption spectrometer or a spectrophotometer. Although this method is accurate, it is time consuming to filter, and efficiency is compromised. Therefore, a sulfuric acid filtering device for a lead-acid storage battery, which can improve the filtering efficiency, needs to be designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lead acid battery is with sulphuric acid filter equipment can the rapid filtration sulphuric acid, raises the efficiency.

To achieve the purpose, the utility model adopts the following technical proposal:

a sulfuric acid filtering device for a lead-acid storage battery comprises a suction filtering assembly and a plurality of filter bottles, wherein each filter bottle is communicated with the suction filtering assembly, a filter is connected to an opening of each filter bottle in a sealing mode, and a liquid outlet is formed in the bottom of each filter bottle; the sulfuric acid filtering device for the lead-acid storage battery further comprises a liquid outlet main pipeline and a plurality of liquid outlet branch pipelines, one end of each liquid outlet branch pipeline is connected with the corresponding liquid outlet of the filter flask, and the other end of each liquid outlet branch pipeline is communicated with the liquid outlet main pipeline.

Preferably, the suction filtration assembly comprises a suction filtration pump and a suction filtration pipeline, and the suction filtration pipeline is connected between the suction filtration pump and the filter flask.

Preferably, the suction filtration pipeline comprises a main pipeline and branch pipelines corresponding to the number of the filter bottles, the main pipeline is connected with the suction filtration pump, one ends of the branch pipelines are communicated with the corresponding filter bottles, and the other ends of the branch pipelines are connected with the main pipeline.

Preferably, a three-way valve is arranged at the joint of each branch pipeline and the main pipeline.

Preferably, the liquid outlet branch pipeline is provided with a valve.

Preferably, the filter bottle is further provided with an auxiliary air inlet hole which can be opened or closed.

Preferably, a seal ring is provided between the opening of the filter flask and the filter.

Preferably, the filter is a sand core funnel.

Preferably, a filtrate holding bottle is arranged at the filtrate outflow end of the liquid outlet main pipeline.

Preferably, the opening of the filter flask is hermetically connected with a filter support seat, the filter support seat is provided with a plurality of filters, and outlets of the plurality of filters are communicated with the inside of the filter flask.

The utility model has the advantages that:

the utility model provides a sulphuric acid filter equipment for lead acid battery, including suction filtration subassembly and a plurality of filter flask, every filter flask all communicates with suction filtration subassembly, and the opening part sealing connection of filter flask has the filter, and suction filtration subassembly is used for accelerating filtration speed, and suction filtration subassembly can carry out suction filtration to a plurality of filter flasks simultaneously, and the filtration of a plurality of filter flasks is gone on simultaneously, can improve the efficiency of filtration; a liquid outlet has been seted up to the bottom of filter flask, and lead acid battery is with sulphuric acid filter equipment still includes a liquid main line and a plurality of liquid branch pipeline of going out, and the liquid outlet of the filter flask that corresponds is connected to the one end of every liquid branch pipeline, and the other end all communicates with liquid main line, and the filtrating in every filter flask flows from the liquid branch pipeline that corresponds separately to converge in liquid main line, finally by the outflow of liquid main line, can collect the filtrating of a plurality of filter flasks.

Drawings

FIG. 1 is a schematic structural diagram of a sulfuric acid filtering device for a lead-acid storage battery provided in the first embodiment;

FIG. 2 is a schematic view of an assembled filter flask and filter according to an embodiment;

fig. 3 is a schematic structural view of the assembled filter flask and filter according to the second embodiment.

In the figure:

1. a suction filtration component; 11. a suction filtration pump; 12. a main pipeline; 13. a branch pipe; 14. a three-way valve; 2. a filter flask; 21. a liquid outlet; 22. an auxiliary air intake; 3. a filter; 4. a liquid outlet main pipeline; 5. a liquid outlet branch pipeline; 51. a valve; 6. a seal ring; 7. a filtrate holding bottle; 8. a filter supporting seat; 81. a channel.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Example one

The embodiment provides a sulfuric acid filtering device for a lead-acid storage battery. As shown in fig. 1 and 2, the sulfuric acid filtering device for the lead-acid storage battery comprises a suction filtering component 1 and a plurality of filter bottles 2, wherein each filter bottle 2 is communicated with the suction filtering component 1, a filter 3 is hermetically connected at an opening of each filter bottle 2, and a liquid outlet 21 is formed in the bottom of each filter bottle 2; the sulfuric acid filtering device for the lead-acid storage battery further comprises a liquid outlet main pipeline 4 and a plurality of liquid outlet branch pipelines 5, one end of each liquid outlet branch pipeline 5 is connected with the corresponding liquid outlet 21 of the filter flask 2, and the other end of each liquid outlet branch pipeline is communicated with the liquid outlet main pipeline 4.

The suction filtration assembly 1 is used for accelerating the filtration speed, the suction filtration assembly 1 can simultaneously carry out suction filtration on a plurality of filter bottles 2, and the filtration of the plurality of filter bottles 2 is carried out simultaneously, so that the filtration efficiency can be improved; through setting up out liquid main line 4 and play liquid branch pipe 5, the filtrating in every filter flask 2 flows out from each corresponding play liquid branch pipe 5 to converge in play liquid main line 4, finally flow out by play liquid main line 4, can collect the filtrating of a plurality of filter flasks 2.

The suction filtration assembly 1 comprises a suction filtration pump 11 and a suction filtration pipeline, and the suction filtration pipeline is connected between the suction filtration pump 11 and the filter flask 2. The suction pump 11 may be a vacuum pump, and is configured to generate negative pressure inside the suction pipe and the filter flask 2, so as to accelerate filtration of the liquid in the filter 3.

Specifically, the suction filtration pipeline includes main pipeline 12 and branch pipeline 13 corresponding to the number of filter bottles 2, main pipeline 12 is connected with suction filtration pump 11, one end of branch pipeline 13 is communicated with corresponding filter bottles 2, and the other end is connected with main pipeline 12. By providing a plurality of branch pipes 13 to connect a plurality of filter bottles 2, negative pressure is generated in synchronization with the plurality of filter bottles 2.

Since the amount of liquid to be filtered may differ each time, when the amount of liquid is small, the number of filter flasks 2 should be reduced accordingly. For this purpose, a three-way valve 14 is provided at the junction of each branch conduit 13 with the main conduit 12. The three-way valve 14 is used to achieve communication or blocking between each branch pipe 13 and the main pipe 12, when blocked, the corresponding bottle 2 is not activated. According to the difference of the volume of the liquid that filters as required, the filter flask 2 quantity of selecting to use is different, can utilize filter flask 2 effectively, reduces extravagantly on quick filterable basis.

The filter flask 2 is also provided with an auxiliary air inlet hole 22 which can be opened or closed. The auxiliary air inlet 22 is normally closed during suction filtration, and after suction filtration is finished, or the negative pressure in the filter flask 2 is large, the auxiliary air inlet 22 can be selectively opened so that the filter flask 2 is kept in a normal pressure state.

In order to ensure that the filter flask 2 does not leak air during suction filtration, a sealing ring 6 is arranged between the opening of the filter flask 2 and the filter 3. The seal 6 may be a rubber seal 6. Sealing washer 6 can guarantee to seal between the opening part of filter flask 2 and filter 3, does not have outside gas to get into when the evacuation in filter flask 2 of suction filtration subassembly 1 to filter flask 3 and filter flask 2 openings and causes the evacuation effect poor.

Since the sulfuric acid filtering apparatus for a lead-acid battery is used to filter sulfuric acid, the filter 3 should be made of a material that is not easily corroded by sulfuric acid. Thus, the filter 3 may be a sand core funnel. The sand core funnel is made of hard high-boron glass, has higher physical and chemical properties, and is suitable for filtering sulfuric acid.

In order to collect the filtrate filtered by each filter flask 2, a filtrate holding bottle 7 is arranged at the filtrate outflow end of the liquid outlet main pipe 4. In addition, in order to control the on-off of each liquid outlet branch pipe 5, a valve 51 is arranged on each liquid outlet branch pipe 5.

The sulfuric acid filtering device for the lead-acid storage battery is operated by the following steps that a certain amount of battery is taken out to pump sulfuric acid, the sulfuric acid is poured onto a sand core funnel on a filter bottle 2, a switch of a suction pump 11 is turned on after the sulfuric acid solution is electrified, the sulfuric acid solution is rapidly filtered in the filter bottle 2, after the sulfuric acid solution is completely filtered, the suction pump 11 is turned off, a valve 51 on a liquid outlet branch pipe is opened, filtrate of each filter bottle 2 flows into a filtrate containing bottle 7 to be collected, the filtrate in the filtrate containing bottle 7 can be used for testing, the testing process is that filtrate with fixed scales is obtained from a graduated tube in the filtrate containing bottle 7, ammonia water is added into the colorimetric tube to adjust the pH to 4-5, 1ml of ascorbic acid (20 g/L), 5ml of acetic acid-sodium acetate buffer solution (pH is approximately equal to 4.5), 1ml of 1.10-phenanthroline solution (2 g/L) is diluted to be equal to the scales of a standard tube prepared in advance, whether the color of the standard tube is consistent with the standard tube or not, when the color is light to the standard tube, the iron content is higher.

Example two

The embodiment provides a sulfuric acid filtering device for a lead-acid storage battery. The rest of the structure in this embodiment is the same as that in the first embodiment, and will not be described herein. Different from the first embodiment, as shown in fig. 2, in the present embodiment, a filter support base 8 is hermetically connected to an opening of the filter flask 2, a plurality of filters 3 are disposed on the filter support base 8, and outlets of the plurality of filters 3 are communicated with the inside of the filter flask 2. A plurality of filters 3 on the same filter flask 2 can be filtered simultaneously, have improved filtration efficiency.

Specifically, a plurality of sockets are arranged on the filter support seat 8, the filters 3 are inserted into the sockets in a one-to-one correspondence manner, a channel 81 communicated with the sockets is arranged in the filter support seat 8, and an outlet of the channel 81 is communicated with the inside of the filter flask 2. The passage 81 is used for the inflow of filtrate into the filter flask 2. When the suction pump 11 performs suction filtration, the plurality of filters 3 on each filter flask 2 perform filtration together, and the filtered filtrate enters the filter flask 2 through the passage 81.

In order to ensure the sealing effect, the filter supporting seat 8 is sealed with the opening of the filter flask 2 through a sealing ring 6. And a sealing piece is arranged between the filter 3 and the socket for sealing.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The sulfuric acid filtering device for the lead-acid storage battery is characterized by comprising a suction filtering assembly (1) and a plurality of filter bottles (2), wherein each filter bottle (2) is communicated with the suction filtering assembly (1), a filter (3) is connected to an opening of each filter bottle (2) in a sealing manner, and a liquid outlet (21) is formed in the bottom of each filter bottle (2); the sulfuric acid filtering device for the lead-acid storage battery further comprises a liquid outlet main pipeline (4) and a plurality of liquid outlet branch pipelines (5), one end of each liquid outlet branch pipeline (5) is connected with the corresponding liquid outlet (21) of the filter flask (2), and the other end of each liquid outlet branch pipeline is communicated with the liquid outlet main pipeline (4).

2. The sulfuric acid filtering device for lead-acid storage batteries according to claim 1, characterized in that the suction filtration assembly (1) comprises a suction filtration pump (11) and a suction filtration pipeline connected between the suction filtration pump (11) and the filtration flask (2).

3. The sulfuric acid filtering device for lead-acid storage batteries according to claim 2, characterized in that the suction filtration pipeline comprises a main pipeline (12) and branch pipelines (13) corresponding to the number of filter bottles (2), the main pipeline (12) is connected with the suction filtration pump (11), one end of each branch pipeline (13) is communicated with the corresponding filter bottle (2), and the other end of each branch pipeline is connected with the main pipeline (12).

4. A sulfuric acid filter unit for lead-acid batteries according to claim 3, characterized in that a three-way valve (14) is provided at the junction of each branch conduit (13) and the main conduit (12).

5. The sulfuric acid filtering device for the lead-acid storage battery of claim 1, wherein a valve (51) is arranged on the liquid outlet branch pipe (5).

6. The sulfuric acid filtering device for lead-acid storage batteries according to claim 1, characterized in that the filter flask (2) is further provided with an auxiliary air inlet hole (22) which can be opened or closed.

7. A sulfuric acid filter device for lead-acid batteries according to claim 1, characterized in that a sealing ring (6) is provided between the opening of the filter flask (2) and the filter (3).

8. The sulfuric acid filtering device for lead-acid batteries according to claim 1, characterized in that the filter (3) is a sand core funnel.

9. The sulfuric acid filtering device for lead-acid storage batteries according to claim 1, characterized in that the filtrate outflow end of the liquid outlet main pipe (4) is provided with a filtrate holding bottle (7).

10. The sulfuric acid filtering device for the lead-acid storage battery as claimed in claim 1, wherein a filter supporting seat (8) is hermetically connected to the opening of the filter flask (2), a plurality of filters (3) are arranged on the filter supporting seat (8), and outlets of the plurality of filters (3) are communicated with the inside of the filter flask (2).