CN202550011U - Acid mist collection-adsorption tower for internal formation of storage battery - Google Patents
Acid mist collection-adsorption tower for internal formation of storage battery Download PDFInfo
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- CN202550011U CN202550011U CN201220029725XU CN201220029725U CN202550011U CN 202550011 U CN202550011 U CN 202550011U CN 201220029725X U CN201220029725X U CN 201220029725XU CN 201220029725 U CN201220029725 U CN 201220029725U CN 202550011 U CN202550011 U CN 202550011U
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- tower
- acid mist
- absorption
- adsorption
- capture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to an acid mist collection-adsorption tower for the internal formation of a storage battery and belongs to the technical field of the storage battery. The acid mist collection-adsorption tower comprises a tower nozzle, a tower body and a tower cover which are sequentially connected; the periphery of the tower nozzle is provided with a transition connector; and the top end of the tower cover is provided with an exhaust port. The acid mist collection-adsorption tower is characterized in that the tower body comprises a collection tower and an adsorption tower; the upper end of the collection tower and the lower end of the adsorption tower are connected and sealed; the tower nozzle is connected with the lower end of the collection tower; the tower cover is arranged at the upper end of the adsorption tower; the lower part of a tower cavity of the collection tower is provided with a bubble cap; a filler layer is arranged above the bubble cap at the lower part of the tower cavity of the collection tower; the bottom of a tower cavity of the adsorption tower is provided with an adsorption liquid storage tank; a gas guide tube is arranged in the middle of the adsorption liquid storage tank; a bubble cap is arranged above the adsorption liquid storage tank; a filler layer is arranged above the bubble cap above the adsorption liquid storage tank; and the lower edge of the bubble cap above the adsorption liquid storage tank is provided with a vent hole. According to the acid mist collection-adsorption tower, the collection and the adsorption of acid mist are respectively completed in two independent towers; the acid mist collection-adsorption tower has low manufacturing cost and can be suitable for the charging formation of various large, medium and small storage batteries; the collection utilization and the adsorption of the acid mist are implemented; the acid mist collection-adsorption tower is convenient to use and maintain and has low investment; the pollution is reduced; and the acid mist collection-adsorption tower is energy-saving and environment-friendly and is convenient to popularize and apply.
Description
Technical field
The utility model relates to a kind of storage battery and is internalized into and uses the acid mist processing unit, is specifically related to a kind of storage battery and is internalized into acid mist capture-absorption plant, belongs to the battery technology field.
Background technology
Changing into of polar plate of lead acid storage battery, conventional method are to adopt channelization to become (claiming outer changing into again), and the pole plate after changing into is assembled into battery again after washing, anti-oxidant treatment, oven dry.Since in formation process, produce a large amount of acid mists, serious environment pollution, the infringement workers'health, alienation becomes pole plate need consume a large amount of water simultaneously, and with contained acid in the flush away pole plate, the result causes a large amount of acid-bearing wastewater dischargings.The measure of taking at present is: green plate is assembled into battery earlier, adopts internal formation process, can reduce washing and anti-oxidant treatment and baking operation in the battery production like this.The acid mist that produces during battery is internalized into receives the restriction of battery cell wall, can only be by fixing exhaust outlet discharging, and a part of acid mist flow back in the battery, so reduced the total emission volumn of acid mist because of being condensed with the wall collision.But still some acid mist is discharged in the atmosphere and contaminated environment with hydrogen and oxygen.No matter be to change into or be internalized into outward, all need adopt air inducing to remove acid mist equipment, increase equipment investment and cost of equipment maintenance, and restored acid can not directly be utilized and the aftertreatment problem of spent acid.
Existing its Granted publication day of patent is on July 29th, 2009; Granted publication number is CN201282179Y; Patent name is that the acid mist that is used for the major valve control sealed lead acid battery is collected and exhaust system, it is characterized in that the acid mist gatherer that is connected on the safety valve is connected to the acid mist comb through acid mist comb branch road; And form a closed-loop path; It is indoor to be connected to negative pressure exhaust through the total comb that is provided with the acidity test probe then, is connected to aerofoil fan through data processing module again, is connected to the outside acid mist treatment box of machine room through outer comb at last.It is used for large-scale storage battery and changes into, and equipment is relatively large, adopt blower fan after, accelerated the acid mist flowing velocity, the effect except that acid mist is reduced, and acid can not directly be utilized, the workload of handling absorption liquid simultaneously is also big.
Still does not have at present can be directly installed on the storage battery exhaust outlet except that the acid mist product.Existing several small-sized patent of removing acid mist can be divided into from removing on the acid mist scheme: filter-type, mixed type, absorption-type.The existing patent of filter-type has Granted publication number to be CN201523049U, and Granted publication day is 2010.07.07, and patent name is that storage battery is internalized into acid-proof and crosses the gas lid; It is characterized in that; It comprises a cover plate, has at least one through hole on the cover plate, and described through hole is built-in with a filter acid film.Acid fog removing device for single employing air filter piece structure; Be applicable to that the little storage battery of air displacement is internalized in the unit interval, can remove very big part acid mist, and for the acid mist body less than the air filter piece micro-pore diameter; Then be difficult to filtering, but this device can directly reclaim acid mist and return in the battery.It is CN101882695A that the existing patent of mixed type has application publication number; Shen Qing Publication day is 2010.11.10; Patent name is a lead-acid storage battery forming anti-acid mist device, comprises that the bottom has the storage acid kettle that connects with storage battery liquid feeding gas outlet, is characterized in that; The sour kettle upside of said storage is connected with acid mist and absorbs kettle, and exhaust outlet is provided with the anti-acid mist flame proof sheet of porous on the said acid mist absorption kettle.Its anti-acid mist efficient of anti-acid mist device for mixed type is still lower.It is CN2122439U that absorptive-type existing patent has notification number; The day for announcing is on November 18th, 1992, and patent name is the acid mist absorber, is made up of absorption cell, conduit and rubber stopper; It is characterized in that: 1) rubber stopper is a truncated cone, can the eyelet that the storage battery end face is arranged be sealed; 2) after a week was vertically circled round in the stage casing of conduit in absorption cell, end stretch went out to pass rubber stopper to end opening from the pond, the bottom that is positioned at absorption cell suitable for reading; 3) absorption cell is the rectangular vessel that fuses with conduit, and the spacing of arranging eyelet on its width and the storage battery adapts interior dress akaline liquid or clear water.For total acid mist amount hypersorption type device, its weak point: the one, acid can not directly be utilized; The 2nd, the absorption liquid measure that is used to absorb total acid content is big, has increased the workload of aftertreatment simultaneously.
Therefore, pressing for provides a kind of small investment, easy to maintenance, and reduce and pollute, energy-conserving and environment-protective, anti-acid mist efficient is high, can directly utilize acid mist, is applicable to that large, medium and small type storage battery is internalized into the acid mist processing unit of usefulness.
The utility model content
The purpose of the utility model is the deficiency to above-mentioned prior art, a kind of small investment is provided, energy-conserving and environment-protective; Be applicable to that large, medium and small type storage battery is internalized into acid mist capture-absorption tower; Can directly be inserted into the exhaust outlet of storage battery, realize capture and absorption to acid mist, the acid mist that is captured directly returns in the primary cell; Only the remaining acid mist of trace in the tail gas is implemented to absorb; Realize that acid mist captures utilization, reduce the workload of absorption liquid aftertreatment, finally give off free of contamination clean air.
The purpose of the utility model realizes through following technical scheme: storage battery is internalized into acid mist capture-absorption tower, comprises the tower mouth, body of the tower, the Ta Gai that connect successively, and tower mouth periphery is provided with the transition interface; Tower caping end is provided with exhaust outlet, it is characterized in that, said body of the tower comprises capture tower, absorption tower; Capture the tower upper end and be connected sealing with the lower end, absorption tower; The tower mouth is connected and captures the tower lower end, and the tower lid is arranged on the upper end, absorption tower, is provided with sealing ring between tower lid and the absorption tower; Bottom, said capture Tata chamber is provided with bubble-cap, and the bubble-cap top is provided with packing layer, and packing layer all is provided with screen cloth, opening retainer ring in two ends up and down, and screen cloth suppresses fixing through opening retainer ring and capture Tata cavity wall; Bottom, said absorption Tata chamber is provided with the absorption liquid storage tank; Be provided with wireway in the middle of the absorption liquid storage tank, wireway is communicated with capture tower and absorption tower, is provided with absorption liquid in the absorption liquid storage tank; Absorption liquid storage tank top is provided with bubble-cap; The bubble-cap top is provided with packing layer, and the packing layer upper end is provided with screen cloth, opening retainer ring, and screen cloth suppresses fixing through opening retainer ring and absorption Tata cavity wall; Open Side Down for said bubble-cap, and the lower limb of bubble-cap is provided with steam vent.
Said connection is sealed into seal with screwed joint or interlocking connects sealing, and said seal with screwed joint is at capture cat head end and lower end, absorption tower screw thread to be set respectively, connects with the cover that is threaded again, captures between cat head end and the lower end, absorption tower sealing ring is set; Said interlocking connection is sealed in and captures the caulking groove that the cat head end is provided with the band sealing ring, and the lower end, absorption tower is provided with the embedding tenon that is complementary with capture cat head end caulking groove, captures tower and is connected sealing with the absorption tower through caulking groove, the interlocking of embedding tenon.
Said transition interface is conical.
Said bubble-cap lower limb is a soft tough limit structure.
Said tower lid is connected with the absorption tower through screw thread, and the Ta Gai side is provided with the flange handgrip.
Said packing layer is a maze-type structure, and the material of packing layer is baton round or the plastic optical fibre silk floss or the open foamed plastic of acid and alkali-resistance.
Said absorption liquid is water or alkali lye, and the liquid level of absorption liquid is higher than the steam vent of bubble-cap lower limb in the absorption tower.
Leave the space between bubble-cap and the packing layer in the capture tower, the space is left equally so that the absorption tower is installed in the packing layer top.
The material of tower mouth, capture tower, absorption tower, Ta Gai, bubble-cap, wireway, opening retainer ring is the plastics of ABS or polyethylene or other acid and alkali-resistances, and the material of sealing ring, transition interface is acid-resisting rubber or rubber and plastic.
The utility model will capture and absorb acid mist and independently accomplish in the tower at two respectively, capture tower and directly return in the primary cell through the acid mist that bubble-cap and packing layer will capture after filtering, and reduce the loss of acid in the battery.The absorption tower utilizes in the absorption liquid of bubble-cap forced gas (still containing a small amount of acid mist) from the absorption liquid storage tank to be passed through, and the absorption of process packing layer realization acid mist, finally discharges free of contamination clean air from tower lid exhaust outlet.The utility model cost of manufacture is low; The tower mouth inserts in the transition interface endoporus, and the transition interface is that taper shape can be applicable to that large, medium and small various charge in batteries changes into, and the acid mist that is captured directly returns in the battery and is utilized; Operation and maintenance is convenient; Small investment, minimizing are polluted, and energy-conserving and environment-protective are easy to utilize.
Description of drawings
The structural representation that Fig. 1 is threaded for the utility model.
Fig. 2 is the sectional structure sketch map of bubble-cap in the utility model.
Fig. 3 is the plan structure sketch map of bubble-cap in the utility model.
Fig. 4 is a screen cloth sketch map in the utility model.
The structural representation that Fig. 5 connects for the utility model interlocking.
Fig. 6 is the structure for amplifying sketch map of embedding tenon and caulking groove in the utility model.
Among the figure: 1 transition interface, 2 tower mouths, 3 steam vents, 4 bubble-caps, 5 capture towers, 6 packing layers, 7 screen clothes, 8 opening retainer rings, 9 be threaded cover, 10 absorption liquid storage tanks, 11 wireways, 12 steam vents, 13 bubble-caps, 14 packing layers, 15 absorption towers, 16 screen clothes, 17 opening retainer rings, 18 towers lid, 19 sealing rings, 20 exhaust outlets, 21 embedding tenons, 22 caulking grooves.
Embodiment
Storage battery is internalized into acid mist capture-absorption tower, comprises transition interface 1, tower mouth 2, steam vent 3, bubble-cap 4, capture tower 5, packing layer 6, screen cloth 7, opening retainer ring 8, the cover 9 that is threaded, absorption liquid storage tank 10, wireway 11, steam vent 12, bubble-cap 13, packing layer 14, absorption tower 15, screen cloth 16, opening retainer ring 17, tower lid 18, sealing ring 19, exhaust outlet 20, embedding tenon 21, caulking groove 22.
Capturing tower 5 upper ends is that seal with screwed joint or interlocking are connected sealing with 15 lower ends, absorption tower.Seal with screwed joint is at capture cat head end and lower end, absorption tower screw thread to be set respectively, connects with the cover 9 that is threaded again, captures between cat head end and the lower end, absorption tower sealing ring is set.It is the caulking groove 22 that the band sealing ring is set at capture cat head end that interlocking connects sealing, and the lower end, absorption tower is provided with and captures the embedding tenon 21 that cat head end caulking groove is complementary, and the capture tower is connected sealing with the absorption tower through caulking groove, the interlocking of embedding tenon.
Capture bottom, Tata chamber and be provided with bubble-cap 4, Open Side Down for bubble-cap, and the bubble-cap lower limb is a soft tough limit structure, and soft tough limit is provided with steam vent 3, and soft tough limit structure can make bubble-cap and inner wall of tower relative fixed.The bubble-cap top is provided with packing layer 6, leaves the space between bubble-cap and the packing layer, and packing layer all is provided with screen cloth 7, opening retainer ring 8 in two ends up and down, and the upper strata screen cloth is arranged on distance and captures tower screw thread 5-10mm place, and the space is left so that the absorption tower is installed in the packing layer top.Screen cloth suppresses fixing through opening retainer ring and capture Tata cavity wall, opening retainer ring fixed grit, and screen cloth compresses and locatees packing layer.Packing layer is a maze-type structure, has increased the collision opportunity of acid mist and packing layer, acid mist is condensed and filters, and the material of packing layer is baton round or the plastic optical fibre silk floss or the open foamed plastic of acid and alkali-resistance.
Absorb bottom, Tata chamber and be provided with absorption liquid storage tank 10, be provided with wireway 11 in the middle of the absorption liquid storage tank, wireway is communicated with capture tower and absorption tower; Guarantee that gas flows freely into absorption Tata chamber from capturing the Tata chamber; Be provided with absorption liquid in the absorption liquid storage tank, absorption liquid storage tank top is provided with bubble-cap 13, and Open Side Down for bubble-cap; Bubble-cap is arranged on 1-2mm place, wireway port top, must not the press seal air guide mouth of pipe.The bubble-cap lower limb is provided with soft tough limit, and soft tough limit is provided with steam vent 12, and soft tough limit structure can make bubble-cap and inner wall of tower relative fixed.The bubble-cap top is provided with packing layer 14.The packing layer upper end is provided with screen cloth 16, opening retainer ring 17, and screen cloth suppresses fixing through opening retainer ring and absorption Tata cavity wall, opening retainer ring fixed grit, and screen cloth compresses and locatees packing layer.Packing layer is a maze-type structure, has increased the collision opportunity of acid mist and packing layer, and acid mist is absorbed fully, and the material of packing layer is baton round or the plastic optical fibre silk floss or the open foamed plastic of acid and alkali-resistance.Absorption liquid is water or alkali lye, and its liquid level is higher than the steam vent of bubble-cap lower limb in the absorption tower.
Tower mouth 2 peripheries are provided with transition interface 1, and the tower mouth inserts in the transition interface endoporus, and the transition interface be a taper shape, can be connected with the exhaust outlet of the storage battery of different size (large, medium and small type).The tower mouth is connected and captures the tower lower end, and tower lid 18 is arranged on the upper end, absorption tower, is provided with sealing ring 19 between tower lid and the absorption tower, so that two towers are air tight when connecting, and no leakage.Tower caping end is provided with exhaust outlet 20, and the Ta Gai side is provided with the flange handgrip and is convenient to tighten and screw out.
The material of tower mouth 2, capture tower 5, absorption tower 15, tower lid 18, bubble-cap 4, bubble-cap 13, wireway 11, opening retainer ring 8, opening retainer ring 17 is the plastics of ABS or polyethylene or other acid and alkali resistances; Preferably select the translucent plastic polypropylene in the present embodiment for use, so that intuitively understand the tower internal state.The acid-resisting rubber or the rubber and plastic of the material selection good springiness of sealing ring 19, transition interface 1.
When storage battery is internalized into, the transition interface of the utility model is connected the exhaust outlet of storage battery, a large amount of acid mists rise in the battery case, get into through the tower mouth and capture the Tata chamber, and after the bubble-cap collision, a part of acid mist is condensed to be got off to return in the battery.Being forced property of gas gets into the packing layer that captures in the tower along the steam vent of bubble-cap lower limb; The tortuous gas passage of the labyrinth type of packing layer has increased the collision opportunity of acid mist and packing layer material; Make acid mist condensed and filter; Most of acid mist is captured in this layer and returns battery at this moment; The acid mist of collection at large gets in the bubble-cap of absorption tower through conduit with the air-flow upwelling, and on the passage in transit absorption liquid surface of turning back and absorption liquid and being absorbed, the unabsorbed acid mist of another part gets into the packing layer on absorption tower again from the exhaust outlet of bubble-cap lower limb with air-flow; This layer is baton round or plastic optical fibre silk floss or the open foamed plastic that is absorbed the acid and alkali-resistance that liquid wetting crosses; The packing layer of maze-type structure has increased acid mist and the collision opportunity that is absorbed the packing layer material that liquid wetting crosses, and remaining acid mist is absorbed in this layer, and final gas of discharging is not contain sour clean air.And the packing layer material is wetting, does not need special operation, only needs when not using, and flat the crouching of body of the tower placed, and the absorption liquid of absorption liquid storage tank can flow to packing layer voluntarily, and can not flow out the absorption tower.Wetting PH test paper is placed on exhaust outlet, and the gas that makes discharge is over against the PH test paper, and warp is repetition test for a long time, the equal nondiscolouring of test paper, and the gas that shows discharge is the clean air that does not contain acid mist.
The utility model is applicable to that also alkaline battery changes into the field, also is the gas that contains the alkali foam that some alkaline battery produces in the charging formation process is realized the device that alkaline purification is handled.
Claims (6)
1. a storage battery is internalized into acid mist capture-absorption tower, comprises the tower mouth, body of the tower, the Ta Gai that connect successively, and tower mouth periphery is provided with the transition interface; Tower caping end is provided with exhaust outlet, it is characterized in that, said body of the tower comprises capture tower, absorption tower; Capture the tower upper end and be connected sealing with the lower end, absorption tower; The tower mouth is connected and captures the tower lower end, and the tower lid is arranged on the upper end, absorption tower, is provided with sealing ring between tower lid and the absorption tower; Bottom, said capture Tata chamber is provided with bubble-cap, and the bubble-cap top is provided with packing layer, and packing layer all is provided with screen cloth, opening retainer ring in two ends up and down, and screen cloth suppresses fixing through opening retainer ring and capture Tata cavity wall; Bottom, said absorption Tata chamber is provided with the absorption liquid storage tank; Be provided with wireway in the middle of the absorption liquid storage tank, wireway is communicated with capture tower and absorption tower, is provided with absorption liquid in the absorption liquid storage tank; Absorption liquid storage tank top is provided with bubble-cap; The bubble-cap top is provided with packing layer, and the packing layer upper end is provided with screen cloth, opening retainer ring, and screen cloth suppresses fixing through opening retainer ring and absorption Tata cavity wall; Open Side Down for said bubble-cap, and the lower limb of bubble-cap is provided with steam vent.
2. storage battery according to claim 1 is internalized into acid mist capture-absorption tower; It is characterized in that; Said connection is sealed into seal with screwed joint or interlocking connects sealing; Said seal with screwed joint is at capture cat head end and lower end, absorption tower screw thread to be set respectively, connects with the cover that is threaded again, captures between cat head end and the lower end, absorption tower sealing ring is set; Said interlocking connection is sealed in and captures the caulking groove that the cat head end is provided with the band sealing ring, and the lower end, absorption tower is provided with the embedding tenon that is complementary with capture cat head end caulking groove, captures tower and is connected sealing with the absorption tower through caulking groove, the interlocking of embedding tenon.
3. storage battery according to claim 1 is internalized into acid mist capture-absorption tower, it is characterized in that, said transition interface is conical.
4. storage battery according to claim 1 is internalized into acid mist capture-absorption tower, it is characterized in that, said bubble-cap lower limb is a soft tough limit structure.
5. storage battery according to claim 1 is internalized into acid mist capture-absorption tower, it is characterized in that, said tower lid is connected with the absorption tower through screw thread, and the Ta Gai side is provided with the flange handgrip.
6. storage battery according to claim 1 is internalized into acid mist capture-absorption tower, it is characterized in that, said absorption liquid is water or alkali lye, and the liquid level of absorption liquid is higher than the steam vent of bubble-cap lower limb in the absorption tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220029725XU CN202550011U (en) | 2012-01-30 | 2012-01-30 | Acid mist collection-adsorption tower for internal formation of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220029725XU CN202550011U (en) | 2012-01-30 | 2012-01-30 | Acid mist collection-adsorption tower for internal formation of storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550011U true CN202550011U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220029725XU Expired - Fee Related CN202550011U (en) | 2012-01-30 | 2012-01-30 | Acid mist collection-adsorption tower for internal formation of storage battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN202550011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091955A (en) * | 2017-12-26 | 2018-05-29 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of acid mist absorbing device for lead-acid accumulator |
-
2012
- 2012-01-30 CN CN201220029725XU patent/CN202550011U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091955A (en) * | 2017-12-26 | 2018-05-29 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of acid mist absorbing device for lead-acid accumulator |
| CN108091955B (en) * | 2017-12-26 | 2020-04-21 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Acid mist absorption device for lead-acid storage battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20150130 |
|
| EXPY | Termination of patent right or utility model |