阅读说明：本技术 一种多孔膨胀石墨板浸渗装置及方法 (Porous expanded graphite plate infiltration device and method ) 是由 华周发 刘震 于 2020-05-20 设计创作，主要内容包括：本发明的一种多孔膨胀石墨板浸渗装置及方法。该装置,包括容器、真空机、真空吸板、隔胶透气膜、保护板、至少两个电磁铁和至少两个磁性件；容器上端敞口,容器内盛放有浸渗胶,真空吸板上设有多个贯穿其的吸取孔,真空机的出气口与吸取孔相连通,隔胶透气膜设置在真空吸板的下板面,多孔膨胀石墨板被吸附在隔胶透气膜上,至少两个电磁铁分别设置在真空吸板的下板面两端,电磁铁均与外部电源电路相连接,保护板上设有多个贯穿且的滴液孔,至少两个磁性件分别设置在保护板的两端,保护板和真空吸板通过电磁铁和磁性件可拆卸连接固定。本发明节约了生产设备成本,节省了浸渗时间,缩短了生产时间,提高生产效率。(The invention discloses a porous expanded graphite plate infiltration device and a method. The device comprises a container, a vacuum machine, a vacuum suction plate, a glue separation and breathable film, a protective plate, at least two electromagnets and at least two magnetic parts; the container upper end is uncovered, it has the infiltration to hold in the container and glues, be equipped with a plurality of absorption holes that run through it on the vacuum suction plate, the gas outlet and the absorption hole of vacuum machine are linked together, separate gluey ventilated membrane setting at the lower face of vacuum suction plate, porous expanded graphite plate is adsorbed on separating gluey ventilated membrane, two at least electro-magnets set up respectively at the lower face both ends of vacuum suction plate, the electro-magnet all is connected with external power supply circuit, be equipped with a plurality of drip holes that run through just on the protection shield, two at least magnetic part set up respectively at the both ends of protection shield, protection shield and vacuum suction plate can dismantle through electro-magnet and magnetic part and connect fixedly. The invention saves the cost of production equipment, saves the infiltration time, shortens the production time and improves the production efficiency.)

1. The utility model provides a porous expanded graphite board device that infiltrates which characterized in that: comprises a container (1), a vacuum machine (2), a vacuum suction plate (3), a glue-separating and breathable film (4), a protective plate (5), at least two electromagnets (6) and at least two magnetic parts (7); the upper end of the container (1) is open, the container (1) is filled with infiltration glue, the vacuum suction plate (3) is provided with a plurality of suction holes (31) penetrating through the vacuum suction plate, the air outlet of the vacuum machine (2) is communicated with the suction holes (31), the glue-isolating breathable film (4) is arranged on the lower plate surface of the vacuum suction plate (3), the porous expanded graphite plate (8) is adsorbed on the glue-isolating breathable film (4), at least two electromagnets (6) are respectively arranged at the two ends of the lower plate surface of the vacuum suction plate (3), the electromagnets (6) are respectively connected with an external power circuit, at least two magnetic members (7) are respectively arranged at the two ends of the protection plate (5), at least two magnetic members (7) are in one-to-one correspondence with at least two electromagnets (6), the protection plate (5) and the vacuum suction plate (3) are detachably connected and fixed through the electromagnets (6) and the magnetic members (7), the protective plate (5) is positioned below the porous expanded graphite plate (8); and during infiltration, the protective plate (5) and the porous expanded graphite plate (8) are both positioned below the liquid level of the infiltration glue in the container (1).

2. The apparatus for impregnating a porous expanded graphite sheet as claimed in claim 1, wherein: the vacuum suction plate (3) is a stainless steel plate, an ABS resin plate or an artificial synthetic stone plate.

3. The apparatus for impregnating a porous expanded graphite sheet as claimed in claim 2, wherein: the protective plate (5) is a stainless steel plate, an ABS resin plate or an artificial synthetic stone plate.

4. The apparatus for impregnating a porous expanded graphite sheet as claimed in claim 2, wherein: the glue separation breathable film (4) is bonded on the lower plate surface of the vacuum suction plate (3) through a glue layer, and the glue layer is arranged on the periphery of the lower plate surface of the vacuum suction plate (3).

5. The porous expanded graphite sheet impregnation device of any one of claims 1 to 4, wherein: the protective plate (5) is provided with a plurality of liquid dropping holes (51) penetrating through the protective plate.

6. The porous expanded graphite sheet impregnation device of any one of claims 1 to 4, wherein: the magnetic part (7) comprises a magnet (71) and a protective cap (72), the protective cap (72) is a cylinder with an open bottom end, an external thread is arranged on the outer wall of the lower end of the protective cap (72), a threaded hole (52) is formed in the upper plate surface of the protective plate (5), the bottom end of the magnet (71) is placed in the threaded hole (52), the protective cap (72) is sleeved outside the magnet (71), and the lower end of the protective cap (72) is screwed in the threaded hole (52).

7. The apparatus for impregnating a porous expanded graphite sheet according to claim 6, wherein: the protective cap (72) is made of an organic material which neither blocks magnetism nor is soluble in impregnating glue.

8. A porous expanded graphite plate infiltration method is characterized in that: using an impregnation device according to any one of claims 1 to 7;

the specific impregnation steps are as follows:

s1: a vacuum suction plate (3) provided with a glue separation and breathable film (4) is used for sucking the porous expanded graphite plate (8) at a loading station of the porous expanded graphite plate (8);

s2: transferring the vacuum suction plate (3) to a suction station, electrifying the electromagnet (6) to generate magnetism, attracting the electromagnet (71) on the protection plate (5) and sucking the protection plate (5);

s3: then transferring the vacuum suction plate (3) to an impregnation station, immersing the porous expanded graphite plate (8) and the protection plate (5) below the liquid level of the impregnation glue in the container (1), and continuously vacuumizing by using a vacuum machine (2) until the vacuum suction force is lost, namely all pores in the porous expanded graphite plate (8) are completely occupied by the impregnation glue, and finishing the impregnation process, wherein at the moment, the gravity of the porous expanded graphite plate (8) falls onto the protection plate (5) due to the loss of the vacuum suction force; then the protective plate (5) is moved to a position above the impregnation glue solution, and redundant impregnation glue in the protective plate (5) is dripped into the container (1) through the dripping hole (51) for recycling; from S1 to S3, the vacuum suction plate (3) continuously maintains the vacuum suction force until the impregnation process is completed, and the vacuumizing is stopped;

s4: and transferring the vacuum suction plate (3) to a recovery station, cutting off the power supply of the electromagnet (6), and allowing the protection plate (5) and the porous expanded graphite plate (8) to fall.

9. The method of infiltration of a porous expanded graphite sheet of claim 8, wherein: the production line is characterized in that a feeding station, a suction station, an impregnation station and a recovery station of the porous expanded graphite plate (8) are a group of production stations, a plurality of groups of production stations are arranged at intervals to form a ring-shaped production line, and the feeding station, the suction station, the impregnation station and the recovery station of the porous expanded graphite plate (8) are respectively provided with a corresponding vacuum suction plate (3) which can move to the next station along a ring line.

10. The method of infiltration of a porous expanded graphite sheet of claim 9, wherein: after the step S4, the vacuum suction plate (3) is transferred to the next group of porous expanded graphite plate (8) feeding station, and then the steps S1-S4 are repeated again.

Technical Field

The invention relates to the technical field of fuel cells, in particular to a porous expanded graphite plate infiltration device and a method.

Background

The existing vacuum infiltration hole plugging process for the porous expanded graphite plate of the fuel cell has a complex process flow and comprises the following specific steps:

1. vacuumizing for the first time, and maintaining for a period of time to completely pump the air in the polar plate.

2. And completely putting the porous expanded graphite plate into the impregnating adhesive until the porous expanded graphite plate is submerged.

3. And vacuumizing for the second time, and maintaining for a period of time to completely remove residual air in the porous expanded graphite plate.

4. Breaking the vacuum.

5. The paste is pressed and held for a period of time, and pressed into the porous expanded graphite sheet by high pressure.

Among them, the 1 st, 2 nd and 5 th need hours as long as several hours, which is a mature industrialized scheme. The process is time consuming and complicated. The tank body which can bear absolute pressure to reach vacuum and high pressure is required, so that the tank body is large in size and expensive in purchase cost.

Disclosure of Invention

The invention aims to provide a device and a method for impregnating a porous expanded graphite plate, which have the advantages of simple structure, low equipment cost, saved impregnation time, shortened production time and improved production efficiency, and solve the defects in the prior art.

The invention relates to a porous expanded graphite plate impregnation device which comprises a container, a vacuum machine, a vacuum suction plate, a glue-separating and breathable film, a protection plate, at least two electromagnets and at least two magnetic parts, wherein the vacuum suction plate is arranged on the container; the upper end of the container is open, the container is filled with infiltration glue, the vacuum suction plate is provided with a plurality of suction holes penetrating through the vacuum suction plate, the air outlet of the vacuum machine is communicated with the suction hole, the glue-separating breathable film is arranged on the lower plate surface of the vacuum suction plate, the porous expanded graphite plate is adsorbed on the glue-separating breathable film, at least two electromagnets are respectively arranged at two ends of the lower plate surface of the vacuum suction plate, the electromagnets are all connected with an external power circuit, the protective plate is provided with a plurality of penetrating drip holes, at least two magnetic pieces are respectively arranged at two ends of the protective plate, at least two magnetic pieces are in one-to-one correspondence with at least two electromagnets, the protection plate and the vacuum suction plate are detachably connected and fixed through the electromagnet and the magnetic part, and the protection plate is positioned below the porous expanded graphite plate; and during infiltration, the protective plate and the porous expanded graphite plate are both positioned below the liquid level of the infiltration glue in the container.

Further, the vacuum suction plate is a stainless steel plate, an ABS resin plate or an artificial synthetic stone plate; the protective plate is a stainless steel plate, an ABS resin plate or an artificial stone plate.

Furthermore, the glue separation breathable film is bonded on the lower plate surface of the vacuum suction plate through a glue layer, and the glue layer is arranged on the periphery of the lower plate surface of the vacuum suction plate.

Furthermore, a plurality of liquid dropping holes penetrating through the protection plate are formed in the protection plate.

Further, the magnetic part includes magnet and protective cap, the protective cap is the open drum in bottom, the lower extreme outer wall of protective cap is equipped with the external screw thread, be equipped with the screw hole on the last face of protection shield, the bottom of magnet is placed in the screw hole, the protective cap cover is established outside the magnet, the lower extreme spiral of protective cap is in the screw hole.

Further, the protective cap is an organic material which can not block magnetism and is not soluble in impregnating adhesive.

Furthermore, both ends of the protection plate are provided with edges extending upwards.

A porous expanded graphite plate infiltration method uses the infiltration device;

the specific impregnation steps are as follows:

s1: sucking the porous expanded graphite plate at a feeding station of the porous expanded graphite plate by using a vacuum suction plate provided with a glue-separating and breathable film;

s2: transferring the vacuum suction plate to a suction station, electrifying an electromagnet to generate magnetism, attracting the electromagnet on the protection plate, and sucking the protection plate;

s3: transferring the vacuum suction plate to an impregnation station, immersing the porous expanded graphite plate and the protection plate below the liquid level of the impregnation glue in the container, and continuously vacuumizing by using a vacuum machine until the vacuum suction force is lost, namely all air holes in the porous expanded graphite plate are occupied by the impregnation glue, and the impregnation process is completed, wherein at the moment, the gravity of the porous expanded graphite plate falls onto the protection plate due to the loss of the vacuum suction force; moving the protective plate to a position above the impregnation glue solution, and dripping redundant impregnation glue in the protective plate into a container through a liquid dripping hole for recycling; from S1 to S3, the vacuum suction plate continuously maintains the vacuum suction force until the impregnation process is completed, and the vacuumizing is stopped;

s4: and transferring the vacuum suction plate to a recovery station, cutting off the power supply of the electromagnet, and allowing the protection plate and the porous expanded graphite plate to fall down.

Furthermore, the porous expanded graphite plate feeding station, the suction station, the impregnation station and the recovery station are a group of production stations, a plurality of groups of production stations are arranged at intervals to form an annular production line, and the porous expanded graphite plate feeding station, the suction station, the impregnation station and the recovery station are respectively corresponding to a vacuum suction plate which can move to the next station along an annular line.

Further, after step S4, the vacuum suction plate is transferred to the next set of porous expanded graphite plate loading station, and then the above steps S1-S4 are repeated again.

The invention relates to a porous expanded graphite plate impregnation device, which is characterized in that a porous expanded graphite plate is adsorbed on a vacuum suction plate coated with a water-proof breathable diaphragm and is immersed in impregnation glue, when in impregnation, the vacuum suction plate, a protection plate and the porous expanded graphite plate extend into the impregnation glue in a container, the vacuum suction plate continuously generates vacuum negative pressure under the action of a vacuum machine, the impregnation glue is uniformly distributed on the porous expanded graphite plate under the action of the negative pressure in a hairline phenomenon so as to fill air in an expansion hole, when the impregnation glue is completely filled in the porous expanded graphite plate, the effect of the vacuum negative pressure disappears, and the impregnated porous expanded graphite plate falls onto the protection plate under the action of gravity. The infiltration process of the porous expanded graphite plate is accelerated, the production efficiency is improved, and the processing time is saved.

The invention does not use a heavy and expensive pressure container as a hardware facility of the infiltration process section, saves the production equipment cost, saves the infiltration time, shortens the production time and improves the production efficiency. The production line designed according to the method of the invention has the advantages of greatly reduced floor area and saved production land.

Drawings

Fig. 1 is a schematic structural view of an infiltration apparatus for porous expanded graphite sheet according to the present invention.

1. A container; 2. a vacuum machine; 3. a vacuum suction plate; 31. a suction hole; 4. separating the glue and ventilating the film; 5. a protection plate; 51. a drip hole; 52. a threaded hole; 6. an electromagnet; 7. a magnetic member; 71. a magnet; 72. a protective cap; 8. porous expanded graphite sheet.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the porous expanded graphite plate impregnation device of the present invention comprises a container 1, a vacuum machine 2, a vacuum suction plate 3, a glue-separating and air-permeable film 4, a protection plate 5, at least two electromagnets 6 and at least two magnetic members 7; the upper end of the container 1 is open, the container 1 is filled with infiltration glue, the vacuum suction plate 3 is provided with a plurality of suction holes 31 penetrating through the vacuum suction plate, the air outlet of the vacuum machine 2 is communicated with the suction hole 31, the glue-separating breathable film 4 is arranged on the lower plate surface of the vacuum suction plate 3, the porous expanded graphite plate 8 is adsorbed on the glue-separating breathable film 4, at least two electromagnets 6 are respectively arranged at two ends of the lower plate surface of the vacuum suction plate 3, the electromagnets 6 are all connected with an external power circuit, at least two magnetic pieces 7 are respectively arranged at two ends of the protection plate 5, at least two magnetic pieces 7 are in one-to-one correspondence with at least two electromagnets 6, the protection plate 5 and the vacuum suction plate 3 are detachably connected and fixed through the electromagnet 6 and the magnetic part 7, and the protection plate 5 is positioned below the porous expanded graphite plate 8; during infiltration, the protective plate 5 and the porous expanded graphite plate 8 are both positioned below the liquid level of the infiltration glue in the container 1.

The vacuum suction plate 3 of the membrane is immersed into the impregnating glue, when impregnating, the vacuum suction plate 3, the protective plate 5 and the porous expanded graphite plate 8 extend into the impregnating glue in the container 1, under the action of the vacuum machine 2, the vacuum suction plate 3 continuously generates vacuum negative pressure, the impregnating glue is uniformly distributed on the porous expanded graphite plate 8 in a hairline phenomenon under the action of the negative pressure so as to fill air in the expansion holes, after the impregnating glue is completely filled into the porous expanded graphite plate 8, the vacuum negative pressure effect disappears, and the impregnated porous expanded graphite plate 8 falls onto the protective plate 5 under the action of gravity. The infiltration process of the porous expanded graphite plate 8 is accelerated, the production efficiency is improved, and the processing time is saved.

The vacuum suction plate 3 and the protection plate 5 are made of various materials, aluminum alloy, polyethylene or polypropylene are not required to be adopted in order to avoid pollution impregnation glue or to perform chemical fusion reaction with the impregnation glue, and the vacuum suction plate 3 can be a stainless steel plate, an ABS resin plate or an artificial stone plate; the protective plate 5 may be a stainless steel plate, an ABS resin plate, or a synthetic stone plate.

The mode that separates gluey ventilated membrane 4 and set up the lower face at vacuum suction plate 3 has a plurality ofly, and in this embodiment, separates gluey ventilated membrane 4 and can pass through the glue layer and bond at the lower face of vacuum suction plate 3, and the glue layer sets up around the lower face of vacuum suction plate 3, will separate gluey ventilated membrane 4 and use adhesive bonding and be connected with porous vacuum suction plate 3. And ensures the sealing effect of the sealing line at the bonding position. The adhesive can be a single-component heating curing adhesive or a two-component mixing standing curing adhesive, the adhesive is dotted on the periphery of the contact between the vacuum suction plate 3 and the adhesive-separating breathable film 4 to form an adhesive layer, the adhesive layer is not brittle at 0-20 ℃, and the adhesive layer has good adhesive property to the organic resin diaphragm and stainless steel or ABS.

The protection shield 5 can also be provided with a plurality of drip holes 51 which run through the protection shield, after the infiltration glue is completely filled in the porous expansion graphite plate 8, the vacuum negative pressure effect disappears, the porous expansion graphite plate 8 which is completely infiltrated falls to the protection shield 5 under the action of gravity, for making unnecessary infiltration glue reusable, when the vacuum suction plate 3 takes the porous expansion graphite plate 8 and the electromagnetically-adsorbed protection shield 5 to move out the liquid level of the infiltration glue, the infiltration glue remained in the protection shield 5 drips back to the container 1 through the drip holes 51 on the protection shield 5, and converges with the infiltration glue in the container 1, thereby achieving the purpose of recycling.

The magnetic member 7 has various structures, which are not limited herein, in this embodiment, the magnetic member 7 may include a magnet 71 and a protective cap 72, the protective cap 72 is a cylinder with an open bottom end, an outer wall of a lower end of the protective cap 72 is provided with an external thread, an upper plate surface of the protective plate 5 may be provided with a threaded hole 52, a bottom end of the magnet 71 is placed in the threaded hole 52, the protective cap 72 is sleeved outside the magnet 71, and a lower end of the protective cap 72 is screwed in the threaded hole 52. The magnet 71 is placed in the protective cap 72 to prevent the impregnating compound from being contaminated by iron ions in the material of the magnet 71, and the protective cap 72 can be made of an organic material which neither blocks magnetism nor is soluble in the impregnating compound, such as: PTFE sheet material, ABS resin, etc., which are not dissolved in the impregnating adhesive, can penetrate the magnetism and simultaneously protect the impregnating adhesive from being polluted.

A porous expanded graphite plate infiltration method uses the infiltration device;

the specific impregnation steps are as follows:

s1: sucking the porous expanded graphite plate 8 at a loading station of the porous expanded graphite plate 8 by using a vacuum suction plate 3 provided with a glue-separating and breathable film 4;

s2: transferring the vacuum suction plate 3 to a suction station, electrifying the electromagnet 6 to generate magnetism, attracting the magnet 71 on the protection plate 5 and sucking the protection plate 5;

s3: then transferring the vacuum suction plate 3 to an impregnation station, immersing the porous expanded graphite plate 8 and the protection plate 5 below the liquid level of the impregnation glue in the container 1, and continuously vacuumizing by using a vacuum machine until the vacuum suction force is lost, namely all air holes in the porous expanded graphite plate 8 are completely occupied by the impregnation glue, and the impregnation process is completed, wherein at the moment, the gravity of the porous expanded graphite plate 8 falls onto the protection plate 5 due to the loss of the vacuum suction force; then the protective plate 5 is moved to the position above the impregnation glue solution, and the redundant impregnation glue in the protective plate 5 is dripped into the container 1 through the dripping hole 51 for recycling; from S1 to S3, the vacuum suction plate 3 keeps the vacuum suction force continuously, and the vacuumizing is stopped until the impregnation process is completed;

s4: the vacuum suction plate 3 is transferred to a recovery station, the power supply of the electromagnet 6 is cut off, and the protection plate 5 and the porous expanded graphite plate 8 fall down.

The feeding station, the sucking station, the infiltration station and the recovery station of the porous expanded graphite plate 8 are a group of production stations, a plurality of groups of production stations are arranged at intervals to form an annular production line, and the feeding station, the sucking station, the infiltration station and the recovery station of the porous expanded graphite plate 8 are respectively provided with a corresponding vacuum suction plate 3 which can move to the next station along the annular line.

After the step S4, the vacuum suction plate 3 is transferred to the next set of porous expanded graphite sheet 8 loading station, and then the above steps S1 to S4 are repeated again.

The endless production line can here be circular, for example: two sets of 8 material loading stations of porous expanded graphite board, absorb the station, infiltrate the station and retrieve the station and enclose into a circular, and rotation type rotation mechanism drives the 3 intermittent type formula rotary cycle of vacuum suction plate on every station, carries out non-intermittent type formula production like this, and production line area reduces by a wide margin in addition, practices thrift the land for production, also can enclose the annular production line of establishing here for the 8 material loading stations of multiunit porous expanded graphite board, absorb the station, infiltrate station and retrieve the station certainly.

The above is not relevant and is applicable to the prior art.

While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the invention, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the invention as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.