CN215184451U

CN215184451U - Quantitative acid adding kettle capable of being automatically opened under negative pressure

Info

Publication number: CN215184451U
Application number: CN202120763337.3U
Authority: CN
Inventors: 李桂发; 郭志刚; 高银; 陈勤忠; 王娟; 邱华良; 许宝云; 欧阳万忠; 钱馨
Original assignee: Tianneng Battery Group Co Ltd
Current assignee: Tianneng Battery Group Co Ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-12-14
Anticipated expiration: 2031-04-14

Abstract

The utility model discloses an automatic ration of opening of negative pressure adds sour kettle is equipped with the control valve that is used for controlling sour down in the lower sour intraductal of kettle body bottom surface, the control valve is including being used for blockking up the floater of sour pipe down, the average density of floater is less than and adds the acidizing fluid density in the ration adds sour kettle. The utility model discloses the quantitative acid adding kettle that the negative pressure is opened automatically sets up a control valve in the acid dropping pipe of the kettle body bottom surface, the control valve includes the floater that is blocked into the installation section in the acid dropping pipe, when adding acid liquor into the quantitative acid adding kettle from the acid adding machine, the acid liquor can not be added into the accumulator because of the blockage of the floater; when a batch of storage batteries are placed into vacuum formation equipment for vacuum formation, pressure difference is formed between the upper side and the lower side of the floating ball in the negative pressure pumping process, when the pressure difference is large enough, the floating ball is triggered to float from the installation section, acid is added uniformly, and the pickling time of each storage battery is consistent.

Description

Quantitative acid adding kettle capable of being automatically opened under negative pressure

Technical Field

The utility model relates to a battery production facility technical field especially relates to an automatic ration of opening of negative pressure adds sour kettle.

Background

The structure of the lead storage battery comprises a battery jar and a battery cover which are mutually covered, the battery jar is generally divided into a plurality of single cells, a pole group is arranged in each single cell, after the pole group is put into the slot and the battery cover is covered, the battery needs to be filled with electrolyte, the electrolyte is sulfuric acid solution, and then formation is carried out.

In the formation process of the lead storage battery, the internal heating of the battery raises the temperature, water bath cooling or air cooling is generally adopted, and meanwhile, in order to control the formation temperature of the battery, the charging current density needs to be controlled and cannot be too large for a long time, so that the formation efficiency is low. On the other hand, the acid adding process belongs to a production line, cooling water is fed after the whole formation tank is full after acid is added, so that the time for filling one formation tank is long, the acid soaking time of batteries is inconsistent, the formation state of each battery is inconsistent, the battery performance is different, and the grouping service life of the batteries is shortened especially for batteries requiring a plurality of batteries for grouping.

In the prior art, acid adding is controlled by an acid adding machine, and an acid adding kettle used for acid adding has no way of controlling the acid adding time, so that simultaneous acid adding among a plurality of batteries cannot be realized.

For example, the utility model discloses a fixed intubate of exempting from adds sour kettle is announced to license No. CN206834250U for overcome and pull out the adverse effect of inserting the honeycomb duct to the acidification process, including the kettle body, the hu zui is established to the kettle body, and sour mouthful is established into to the bottom of kettle body, still including the guide plate, the guide plate is fixed in hu zui department, and one end extends to in the kettle body, and the other end extends to outside the kettle body, is arranged in inserting the battery, have the clearance between the inner wall of guide plate both sides and hu zui.

SUMMERY OF THE UTILITY MODEL

The utility model provides a ration that negative pressure was opened automatically adds sour kettle to the above-mentioned not enough that exists among the prior art, is applicable to the synchronous acid that adds between a batch of many batteries when the vacuolation becomes.

A quantitative acid adding kettle capable of being automatically opened under negative pressure is used for adding acid to a storage battery, an acid adding hole column for adding acid into each single cell of the storage battery is arranged on the top surface of the storage battery, an acid adding hole is formed in the middle of the acid adding hole column, the quantitative acid adding kettle comprises a kettle body, an inner cavity for storing acid liquid is formed in the kettle body, an acid discharging pipe communicated with the inner cavity of the quantitative acid adding kettle is arranged on the bottom surface of the kettle body, a control valve for controlling the acid discharging is arranged in the acid discharging pipe, an inserting port matched with the acid adding hole column of the storage battery in an inserting mode is arranged at the bottom end of the acid discharging pipe,

the control valve comprises a floating ball for blocking the acid discharging pipe, and the average density of the floating ball is less than the density of the acid liquid added into the quantitative acid adding kettle; the interior of the lower acid pipe is provided with an installation section with a reduced inner diameter, the floating ball is clamped in the installation section to block the closed valve state of the lower acid pipe, and the open valve state is formed by adding acid liquor into the quantitative acid adding kettle and pumping negative pressure to the quantitative acid adding kettle so as to trigger the floating ball to float from the installation section when pressure difference is formed between the upper side and the lower side of the floating ball.

Preferably, the acid discharging pipe comprises an installation pipe which is integrally formed with the kettle body, and a spout of which the top end is sleeved with the installation pipe, and the installation section is positioned in the spout.

More preferably, the spout is provided with a first chamfer at the top of the mounting section for conveniently clamping the floating ball into the mounting section.

More preferably, the bottom of the mounting section of the spout is provided with a necking section for preventing the floating ball from falling out from the lower part, and the inner diameter of the necking section is smaller than that of the mounting section.

More preferably, the insertion port is positioned at the bottom end of the spout, and a second chamfer convenient for the quantitative acid adding kettle to be in insertion fit with the acid adding hole column is arranged at the opening part of the insertion port.

Preferably, the outer side wall of the kettle body is convexly provided with a lower pressing block for pressing the quantitative acid adding kettle.

Preferably, the material of the kettle mouth is acid-resistant rubber.

Preferably, the acid discharging pipe is positioned on one side of the bottom surface of the kettle body, and the other side of the bottom surface of the kettle body is also provided with a supporting leg which is propped against the top surface of the storage battery when the quantitative acid adding kettle is assembled on the storage battery.

The utility model discloses the quantitative acid adding kettle that the negative pressure is opened automatically sets up a control valve in the acid dropping pipe of the kettle body bottom surface, the control valve includes the floater that is blocked into the installation section in the acid dropping pipe, when adding acid liquor into the quantitative acid adding kettle from the acid adding machine, the acid liquor can not be added into the accumulator because of the blockage of the floater; when a batch of storage batteries are placed into vacuum formation equipment for vacuum formation, pressure difference is formed between the upper side and the lower side of the floating ball in the negative pressure pumping process, when the pressure difference is large enough, the floating ball is triggered to float from the installation section, acid is added uniformly, and the pickling time of each storage battery is consistent.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the quantitative acid adding kettle of the present invention.

Fig. 2 is a schematic view of the top view structure of the quantitative acid adding kettle of the present invention.

Fig. 3 is a sectional view taken along a-a in fig. 2.

Fig. 4 is a partial enlarged view of B in fig. 3.

Fig. 5 is a schematic sectional view of the spout.

Detailed Description

As shown in figures 1-5, the quantitative acid adding kettle capable of being automatically opened under negative pressure is used for quantitatively adding acid to a storage battery, an acid adding hole column for adding acid into each single cell of the storage battery is arranged on the top surface of the storage battery, an acid adding hole is formed in the middle of the acid adding hole column, the storage battery comprises a plurality of single cells, a pole group is arranged in each single cell, and an acid adding hole column is arranged on the top surface of the storage battery corresponding to each single cell. The utility model discloses ration acidification kettle includes the kettle body 1, and kettle body 1 is inside to have the inner chamber that is used for depositing the acidizing fluid, and the bottom surface of the kettle body 1 has the lower sour pipe 2 that communicates with ration acidification kettle inner chamber, and each check correspondence of the kettle body 1 is equipped with a lower sour pipe 2, and lower sour pipe 2 bottom is equipped with the acidification hole post grafting complex interface 4 with the battery top surface. In the embodiment, the quantitative acid adding kettles are connected kettles, each quantitative acid adding kettle comprises monomer kettles with the same number as the single lattice of the storage battery, and each monomer kettle is correspondingly provided with a lower acid pipe 2.

The acid discharging pipe 2 comprises an installation pipe 21 which is integrally formed with the kettle body 1, and a spout 22 of which the top end is sleeved with the installation pipe 21, and the bottom end of the spout 22 is provided with a plug-in port 4.

A control valve for controlling automatic acid discharging is arranged in the acid discharging pipe 2, the control valve comprises a floating ball 5 for blocking the acid discharging pipe 2, and the average density of the floating ball 5 is less than that of the acid liquor added into the quantitative acid adding kettle; the spout 22 has a mounting section 23 with a reduced inner diameter, the floating ball 5 is clamped in the mounting section 23 to block the closed valve state of the lower acid pipe 2, and the quantitative acid adding kettle is filled with acid liquor and vacuumized to form a negative pressure on the quantitative acid adding kettle so as to trigger the floating ball 5 to float from the mounting section 23 when a pressure difference is formed between the upper side and the lower side of the floating ball 5. The spout 22 is provided with a first chamfer 25 at the top of the mounting section 23 for conveniently clamping the floating ball 5 into the mounting section 23. The bottom of the spout 22 on the mounting section 23 is provided with a necking section 24 for preventing the floating ball 5 from falling out from the lower part, and the inner diameter of the necking section 24 is smaller than that of the mounting section 23.

The spout 22 can be made of acid-resistant rubber and has certain flexibility, so that the storage battery cannot be damaged when the spout 22 is in plug-in fit with the acid injection hole column of the storage battery. In addition, in order to facilitate the insertion and matching of the quantitative acid adding kettle and the acid adding hole column on the storage battery, a second chamfer 26 is arranged at the opening part of the insertion port 4.

The positions of two outer side walls of the kettle body 1, which are close to the middle lower part, are provided with a plurality of vertical lower pressing blocks 3, and the lower pressing blocks 3 are pressed down by a mechanism which is uniformly pressed down in the vacuum forming equipment so as to ensure that the quantitative acid adding kettle on each storage battery is in place in an inserting and matching way with the storage battery. The lower acid pipe 2 is positioned on one side of the bottom surface of the kettle body 1, the other side of the bottom surface of the kettle body 1 is also provided with a supporting leg 6, so that when the quantitative acid adding kettle is assembled on a storage battery, the lower acid pipe 2 is in plug-in fit with an acid injection hole column on the top surface of the storage battery, and the supporting leg 6 can be propped against other positions on the top surface of the storage battery, so that the quantitative acid adding kettle is stable when assembled on the storage battery and is not easy to overturn.

The utility model discloses automatic quantitative acidification kettle of opening of negative pressure is when using, assemble quantitative acidification kettle earlier, go into the floater 5 card and install in the installation section 23 of hu zui 22, then cup joint hu zui 22 on the installation pipe 21, then install quantitative acidification kettle on each battery, to pouring into required amount of acidizing fluid in the quantitative acidification kettle, at this moment because the control valve is in the closed valve state, the acidizing fluid stays in the quantitative acidification kettle and can not flow in the battery, then put a batch of many batteries into the equipment that the vacuolation becomes, when carrying out the vacuolation to same batch of battery, because take out the negative pressure in the equipment to the vacuolation, produce pressure differential under certain negative pressure size the upper and lower both sides of floater 5, make floater 5 deviate from the floating from in installation section 23 when pressure differential is enough big, the control valve in each quantitative acidification kettle is unified to be opened, thereby the acidizing fluid flows down in the battery 1, the storage batteries are uniformly added with acid, the pickling time of each storage battery is consistent, the storage battery formation state is consistent, the difference among the storage batteries is reduced, and the matching is facilitated.

Claims

1. A quantitative acid adding kettle capable of being automatically opened under negative pressure is used for adding acid to a storage battery, an acid adding hole column for adding acid into each cell of the storage battery is arranged on the top surface of the storage battery, an acid adding hole is formed in the middle of the acid adding hole column, the quantitative acid adding kettle comprises a kettle body, an inner cavity for storing acid liquid is formed in the kettle body, the quantitative acid adding kettle is characterized in that an acid discharging pipe communicated with the inner cavity of the quantitative acid adding kettle is arranged on the bottom surface of the kettle body, a control valve for controlling the acid discharging is arranged in the acid discharging pipe, an inserting port matched with the acid adding hole column of the storage battery in an inserting mode is arranged at the bottom end of the acid discharging pipe,

2. The quantitative acid adding kettle as claimed in claim 1, wherein the acid adding pipe comprises a mounting pipe integrally formed with the kettle body and a spout having a top end sleeved with the mounting pipe, and the mounting section is located in the spout.

3. The pot as claimed in claim 2, wherein the spout has a first chamfer at the top of the mounting section to facilitate the ball to be caught in the mounting section.

4. The pot as claimed in claim 2, wherein the spout has a reduced section at the bottom of the mounting section to prevent the floating ball from falling out from below, and the reduced section has an inner diameter smaller than that of the mounting section.

5. The quantitative acid adding kettle as claimed in claim 2, wherein the insertion port is located at the bottom end of the kettle mouth, and the mouth of the insertion port is provided with a second chamfer facilitating the insertion and matching of the quantitative acid adding kettle and the acid adding hole column.

6. The pot for adding acid quantitatively as claimed in claim 1, wherein a lower pressing block for pressing down the pot for adding acid quantitatively is protruded from an outer side wall of the pot body.

7. The quantitative acid adding kettle as claimed in claim 1, wherein the material of the spout is acid-proof rubber.

8. The quantitative acid adding kettle as claimed in claim 1, wherein the lower acid pipe is located at one side of the bottom surface of the kettle body, and supporting legs which abut against the top surface of the storage battery when the quantitative acid adding kettle is assembled to the storage battery are further provided at the other side of the bottom surface of the kettle body.