阅读说明：本技术 一种汽车燃料电池用的氢气干燥器 (Hydrogen dryer for automobile fuel cell ) 是由 马志贤 于 2019-12-09 设计创作，主要内容包括：本发明公开了一种汽车燃料电池用的氢气干燥器。包括筒体,所述筒体的一侧设置有卸料口,所述筒体的另一侧设置有第一热电阻接口。该发明装置通过设置装料口和卸料口进行填充和更换分子筛粒和钯触媒作为反应媒介,将氢气进行脱氧处理并且在进行干燥处理,通过设置工作气进口和工作气出口作为氢气注入和循环的通道,是整个氢气循环干燥过滤过程中的回路,通过设置钯触媒能够将氢气的中少量氧气进行催化,重新反应成水,以提高氢气纯度,水份在通过分子筛粒吸附而进行脱水提纯,并分子筛粒能够进行在生,降低净化的成本,该发明装置能够有效的将氢气制备产生的少量氧气和水分进行吸附,在进行干燥处理,从而达到较高的纯度。(The invention discloses a hydrogen dryer for an automobile fuel cell. The thermal insulation barrel comprises a barrel body, wherein a discharge opening is formed in one side of the barrel body, and a first thermal resistance interface is formed in the other side of the barrel body. The device of the invention fills and changes molecular sieve particles and palladium catalyst as reaction media by arranging a charging opening and a discharging opening, performs deoxidation treatment on hydrogen and performs drying treatment, and uses a working gas inlet and a working gas outlet as a hydrogen injection and circulation channel, which is a loop in the whole hydrogen circulation drying and filtering process.)

1. A hydrogen dryer for an automotive fuel cell, comprising a cartridge (4), characterized in that: a discharge opening (2) is formed in one side of the cylinder body (4), a first thermal resistance interface (21) is arranged on the other side of the cylinder body (4), a first elliptical head (1) is fixedly connected to one end of the cylinder body (4), a second elliptical head (20) is fixedly connected to the other end of the cylinder body (4), molecular sieve particles (5) are filled in the inner side of the cylinder body (4), a supporting and filtering supporting plate (23) is arranged in the inner side of the cylinder body (4), a second thermal resistance interface (24) is arranged at one end of the first elliptical head (1), a middle cylinder (6) is fixedly connected to the middle of the second elliptical head (20), a charging opening (9) and a working gas inlet (25) are formed in one side of the second elliptical head (20), a connecting pipe (10) is sleeved at one end of the charging opening (9), and a first flange (11) is fixedly connected to one end of the connecting pipe (10), first ring flange (11) are through double-screw bolt nut (12) fixedly connected with flange cover (13), the inboard of well section of thick bamboo (6) is provided with inner tube (7), one side of well section of thick bamboo (6) is provided with working gas outlet (19), the one end of well section of thick bamboo (6) is through twining pad (17) fixedly connected with second ring flange (18), the inboard of inner tube (7) is provided with heater strip (8), the one end fixedly connected with awn board (22) of inner tube (7), screw (16) fixedly connected with terminal box (15) are passed through to one side of second ring flange (18), one side of terminal box (15) is provided with cable connector (14), the outside of discharge opening (2) is provided with hexagonal vexed head (3), one side of heater strip (8) is provided with outer wall ground wire (28).

2. A hydrogen dryer for an automotive fuel cell according to claim 1, characterized in that: the charging hole (9) is a long closed hole and is always sealed through a first flange plate (11), a stud nut (12) and a flange cover (13), the flange cover (13) is periodically opened to load molecular sieve particles (5), then a palladium catalyst (30) is loaded until the cylinder body (4) and the middle cylinder (6) are fully filled, and the discharging hole (2) is a long closed hole and is always sealed through a hexagonal bulkhead (3).

3. A hydrogen dryer for an automotive fuel cell according to claim 1, characterized in that: the molecular sieve particles (5) are molecular sieves 13X, and the molecular sieve particles (5) adsorb moisture in a passing gas flow, so that pure hydrogen is prepared.

4. A hydrogen dryer for an automotive fuel cell according to claim 1, characterized in that: the heating wire (8) and the outer wall ground wire (28) are connected into an external power supply through the cable interface (14) by the junction box (15), and the junction box (15) is made of an all-insulation material.

5. A hydrogen dryer for an automotive fuel cell according to claim 1, characterized in that: the heating wire (8) is made of a bare L100mm resistance wire, a heating sleeve (26) is arranged on the outer wall of the heating wire (8), and an insulating filling material (27) is filled in the middle of the heating sleeve (26).

6. A hydrogen dryer for an automotive fuel cell according to claim 1, characterized in that: work gas import (25) are rushed into for the hydrogen that contains impurity, permeate through palladium catalyst (30) and carry out the deoxidization, palladium catalyst (30) can be catalyzed the oxygen that mixes in the hydrogen and contain, react with hydrogen and produce water, and then play deoxidization's effect, and the hydrogen of mixing moisture content gets into molecular sieve grain (5) district, adsorbs remaining moisture in the hydrogen, permeates support filtration layer board (23) and follow work gas export (19) along well section of thick bamboo (6) and discharge, the external gas holder of work gas export (19) for pure hydrogen is stored.

7. A hydrogen dryer for an automotive fuel cell according to claim 1, characterized in that: first thermal resistance interface (21) and second thermal resistance interface (24) are the thermal resistance seat, can play quick heating through carrying out external power supply, assist heater strip (8) to carry out the regeneration of molecular sieve grain (5).

8. A hydrogen dryer for an automotive fuel cell according to claim 1, characterized in that: the supporting and filtering supporting plate (23) is a supporting seat of the whole middle cylinder (6), is fixed with the middle cylinder (6) through a mounting screw (29) and is used for limiting the position of the middle cylinder (6), and an air gap is reserved as a passage for discharging hydrogen.

Background

The automobile fuel cell is used for a fuel cell automobile, and the fuel is filled into the battery within five minutes instead of waiting for several hours to be fully charged; fuel cell vehicles are also electric vehicles, except that "batteries" are hydrogen-oxygen hybrid fuel cells; compared with the common chemical battery, the fuel battery can supplement fuel, generally hydrogen; some fuel cells can use methane and gasoline as fuel, but are generally limited to industrial fields such as power plants and forklifts.

Therefore, when the hydrogen is supplemented to the automobile fuel cell, the hydrogen with higher purity, no oxygen and no moisture is needed, and the hydrogen and the oxygen are generally formed by electrolyzing water in the conventional hydrogen preparation process, and the generated hydrogen is mixed with part of the oxygen and also contains more moisture, so that the hydrogen cannot be directly supplemented to the fuel cell.

Disclosure of Invention

The invention mainly aims to provide a hydrogen dryer for an automobile fuel cell, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

a hydrogen dryer for an automobile fuel cell comprises a cylinder body, wherein a discharge opening is formed in one side of the cylinder body, a first thermal resistance interface is formed in the other side of the cylinder body, a first elliptical head is fixedly connected to one end of the cylinder body, a second elliptical head is fixedly connected to the other end of the cylinder body, molecular sieve particles are filled in the inner side of the cylinder body, a supporting and filtering supporting plate is arranged on the inner side of the cylinder body, a second thermal resistance interface is formed in one end of the first elliptical head, a middle cylinder is fixedly connected to the middle of the second elliptical head, a charging opening and a working gas inlet are formed in one side of the second elliptical head, a connecting pipe is sleeved at one end of the charging opening, a first connecting pipe is fixedly connected to one end of the first connecting pipe, a flange cover is fixedly connected to the first flange plate through a stud nut, an inner cylinder is, one side of well section of thick bamboo is provided with the working gas export, the one end of well section of thick bamboo is through twining pad fixedly connected with second ring flange, the inboard of inner tube is provided with the heater strip, the awn board of one end fixedly connected with of inner tube, screw fixedly connected with terminal box is passed through to one side of second ring flange, one side of terminal box is provided with the cable interface, the outside of discharge opening is provided with the hexagonal bulkhead, one side of heater strip is provided with the outer wall ground wire.

Furthermore, the charging port is a long closed port and is always sealed through a first flange plate, a stud nut and a flange cover, the flange cover is periodically opened to load molecular sieve particles, then a palladium catalyst is loaded until the cylinder body and the middle cylinder are fully filled, and the discharging port is a long closed port and is always sealed through a hexagonal choke plug.

Further, the molecular sieve particles are molecular sieve 13X, which adsorb moisture in the passing gas stream, thereby allowing pure hydrogen to be produced.

Furthermore, the junction box connects the heating wire and the outer wall ground wire to an external power supply through a cable interface, and is made of an all-insulation material.

Furthermore, the heating wire is a bare L100mm resistance wire, a heating sleeve is arranged on the outer wall of the heating wire, the optimal bearing voltage of the heating wire is 1.2KW/220V, an insulating filling material is filled in the middle of the heating sleeve, and the insulating filling material is preferably glass fiber.

Further, the working gas import is rushed into for the hydrogen that contains impurity, sees through the palladium catalyst and carries out the deoxidization, and the palladium catalyst can be catalyzed the oxygen that mixes in the hydrogen and contain, reacts with hydrogen and produces water, and then plays deoxidization's effect, and the hydrogen of mixing moisture content gets into the molecular sieve grain district, adsorbs remaining moisture in the hydrogen, sees through the support and filters the layer board along well section of thick bamboo from the working gas export discharge, the external gas holder of working gas export for pure hydrogen is stored.

Furthermore, first thermal resistance interface and second thermal resistance interface are the thermal resistance seat, can play quick heating through carrying out external power supply, and the regeneration that assists the heater strip to carry out the molecular sieve grain.

Further, the supporting filter supporting plate is a supporting seat of the whole middle cylinder, is fixed with the middle cylinder through a mounting screw and is used for limiting the position of the middle cylinder, and an air gap is reserved as a passage for discharging hydrogen.

Furthermore, after the dryer works for 24 hours, molecular sieve particle regeneration needs to be carried out; the regeneration process comprises three parts: heating, washing and cooling, wherein the heating wires, the first thermal resistance interface and the second thermal resistance interface heat the molecular sieve particles to 220 ℃, and high-concentration water vapor can seriously damage the molecular sieve particle structure at high temperature, so that a molecular sieve particle bed layer must be washed by hydrogen while heating; the regenerated molecular sieve particle adsorption tower can be used for adsorption operation only after being cooled, and when the molecular sieve particle bed layer is flushed by cooling gas, the used gas is kept dry and cleaned.

Compared with the prior art, the invention has the following beneficial effects:

1. the device fills and replaces molecular sieve particles and palladium catalyst as reaction media by arranging a charging opening and a discharging opening, and performs deoxidation treatment and drying treatment on hydrogen to obtain the most pure hydrogen;

2. the device is provided with the heating wire, the first thermal resistance interface and the second thermal resistance interface as the heating unit of the whole structure, and can be used for drying hydrogen and regenerating and heating molecular sieve particles;

3. the device is provided with a working gas inlet and a working gas outlet which are used as channels for hydrogen injection and circulation, and is a loop in the whole hydrogen circulation drying and filtering process;

4. the device can catalyze a small amount of oxygen in the hydrogen by arranging the palladium catalyst, and the oxygen is reacted into water again so as to improve the purity of the hydrogen, the water is dehydrated and purified by the adsorption of the molecular sieve particles, the molecular sieve particles can be generated, the purification cost is reduced, and the activity of the molecular sieve particles is kept;

5. the device can effectively adsorb a small amount of oxygen and moisture generated in hydrogen preparation and perform drying treatment, thereby achieving higher purity.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic structural view of the heating wire of the present invention.

Figure 4 is a top view of the structure supporting the filter plate of the present invention.

Figure 5 is a side view of the structure supporting the filter plate of the present invention.

In the figure: 1. a first elliptical head; 2. a discharge opening; 3. a hexagonal bulkhead; 4. a barrel; 5. molecular sieve particles; 6. a middle cylinder; 7. an inner barrel; 8. heating wires; 9. a charging port; 10. taking over a pipe; 11. a first flange plate; 12. a stud nut; 13. a flange cover; 14. a cable interface; 15. a junction box; 16. a screw; 17. a winding pad; 18. a second flange plate; 19. a working gas outlet; 20. a second elliptical head; 21. a first thermal resistance interface; 22. a awn board; 23. supporting the filter support plate; 24. a second thermal resistance interface; 25. a working gas inlet; 26. heating the sleeve; 27. an insulating filler material; 28. an outer wall ground wire; 29. mounting screws; 30. a palladium catalyst.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, a hydrogen dryer for an automobile fuel cell comprises a cylinder 4, a discharge opening 2 is arranged on one side of the cylinder 4, a first thermal resistance connector 21 is arranged on the other side of the cylinder 4, a first elliptical head 1 is fixedly connected to one end of the cylinder 4, a second elliptical head 20 is fixedly connected to the other end of the cylinder 4, molecular sieve particles 5 are filled in the inner side of the cylinder 4, a supporting and filtering supporting plate 23 is arranged on the inner side of the cylinder 4, a second thermal resistance connector 24 is arranged on one end of the first elliptical head 1, a middle cylinder 6 is fixedly connected to the middle of the second elliptical head 20, a charging opening 9 and a working gas inlet 25 are arranged on one side of the second elliptical head 20, a connecting pipe 10 is sleeved on one end of the charging opening 9, a first flange 11 is fixedly connected to one end of the connecting pipe 10, a flange cover 13 is fixedly connected to the first flange 11 through a stud nut 12, the inboard of well section of thick bamboo 6 is provided with inner tube 7, one side of well section of thick bamboo 6 is provided with working gas outlet 19, the one end of well section of thick bamboo 6 is through twining pad 17 fixedly connected with second ring flange 18, the inboard of inner tube 7 is provided with heater strip 8, the one end fixedly connected with awn board 22 of inner tube 7, 16 fixedly connected with terminal box 15 is passed through to one side of second ring flange 18, one side of terminal box 15 is provided with cable connector 14, the outside of discharge opening 2 is provided with hexagonal bulkhead 3, one side of heater strip 8 is provided with outer wall ground wire 28.

Wherein, the charging hole 9 is long closed, all the time through first ring flange 11, stud nut 12 and flange cover 13 sealed, regularly open flange cover 13 and load molecular sieve grain 5, then load palladium catalyst 30, it is full of to fill up until barrel 4 and well section of thick bamboo 6, discharge opening 2 is long closed, all the time through sealed by hexagonal bulkhead 3, can add palladium catalyst 30 and molecular sieve grain 5 as filtering material through setting up charging hole 9, and can portably add and change, the portability is high, and reaction effect is good.

Wherein, molecular sieve grain 5 is molecular sieve 13X, molecular sieve grain 5 will pass through the moisture absorption in the air current to make the preparation pure hydrogen, molecular sieve grain 5 as moisture absorption unit can regenerate and recover, keeps circulation reduce cost, and keeps the adsorption affinity all the time.

The junction box 15 is made of an all-insulation material, the heating wire 8 and the outer wall ground wire 28 are connected to an external power supply through the cable connector 14, the junction box 15 can supply power to the heating wire 8 through the junction box 15, and the outer wall ground wire 28 guarantees power utilization safety of the heating wire.

The heating wire 8 is a bare L100mm resistance wire, a heating sleeve 26 is arranged on the outer wall of the heating wire 8, the optimal bearing voltage of the heating wire 8 is 1.2KW/220V, an insulating filling material 27 is filled in the middle of the heating sleeve 26, the insulating filling material 27 is preferably made of glass fiber, and the heating wire 8 is arranged as a regeneration unit of the molecular sieve particles 5 to play a role in rapid temperature rise and recovery.

Wherein, work gas import 25 is rushed into for the hydrogen that contains impurity, sees through palladium catalyst 30 and carries out the deoxidization, and palladium catalyst 30 can be catalyzed the oxygen that mixes in the hydrogen and contain, reacts with hydrogen and produces water, and then plays deoxidization's effect, and the hydrogen of mixing moisture content gets into molecular sieve grain 5 district, adsorbs remaining moisture in the hydrogen, sees through supporting filter support plate 23 along well section of thick bamboo 6 from 19 discharges in the work gas export, 19 external gas holders in work gas export for pure hydrogen stores, and through setting up work gas import 25 as the input position of mixed hydrogen, can contact palladium catalyst 30 at first and carry out the deoxidization, can play effectual filter action carrying out the dewatering through molecular sieve grain 5.

Wherein, first thermal resistance interface 21 and second thermal resistance interface 24 are the thermal resistance seat, can play quick heating through carrying out external power supply, assist heater strip 8 to carry out the regeneration of molecular sieve grain 5, through setting up first thermal resistance interface 21 and second thermal resistance interface 24 as reserve heating source, can the most direct regeneration cycle heating that carries on.

Wherein, the supporting filter supporting plate 23 is a supporting base of the whole middle cylinder 6, is fixed with the middle cylinder 6 by a mounting screw 29 for limiting the position of the middle cylinder 6, and leaves an air gap as a passage for discharging hydrogen gas, and is also a passage for discharging hydrogen gas by arranging the supporting filter supporting plate 23 as a fixing unit of the middle cylinder 6.

Wherein, after the dryer works for 24 hours, the molecular sieve particles 5 need to be regenerated; the regeneration process comprises three parts: heating, flushing and cooling, wherein the heating wire 8, the first thermal resistance interface 21 and the second thermal resistance interface 24 heat the molecular sieve particles 5 to 220 ℃, and high-concentration water vapor can seriously damage the structure of the molecular sieve particles 5 at high temperature, so that a molecular sieve particle 5 bed layer needs to be flushed by hydrogen while heating; the regenerated molecular sieve particle 5 adsorption tower can be used for adsorption operation only after being cooled, when the molecular sieve particle 5 bed layer is flushed by cooling gas, the used gas is kept dry and clean, and the regeneration circulation can effectively reduce the consumption of the molecular sieve particle 5, so that the cost is reduced.

In addition, the invention relates to a hydrogen dryer for an automobile fuel cell,

the method comprises the following steps: an operator detaches the stud nut 12, opens the flange cover 13, injects the molecular sieve particles 5 and the palladium catalyst 30 through the charging port 9 in sequence, closes the flange cover 13, connects the gas outlet pipeline of the hydrogen ionization device to the working gas inlet 25, the mixed gas catalyzes the oxygen mixed in the hydrogen through the palladium catalyst 30, reacts with the hydrogen to generate water, and further has the deoxidation effect, the hydrogen mixed with moisture enters the molecular sieve particle 5 area, adsorbs the moisture in the hydrogen, and is discharged from the working gas outlet 19 to the gas storage tank through the supporting and filtering supporting plate 23 along the middle cylinder 6, after being used for 24 hours, the working gas inlet 25 is closed, the heating wire 8, the first thermal resistance interface 21 and the second thermal resistance interface 24 are opened, so that the molecular sieve particles 5 reach 220 ℃, the high-concentration water vapor can seriously damage the molecular sieve particle 5 structure under high temperature, therefore, when being heated, the working gas outlet 19 is opened to reversely exhaust to make part of the hydrogen flush the molecular sieve particle 5 bed layer, after washing, the device is cooled and is operated by adsorption after the working gas inlet 25 is opened, the device can effectively improve the purity of hydrogen so as to meet the requirement of the fuel cell for the automobile, and meanwhile, the device also has the functions of regenerating and activating the molecular sieve particles 5, can activate and regenerate the molecular sieve particles 5 in the drier, can be repeatedly used, can save the cost and improve the working efficiency.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.