CN215981959U - Film sealing dry type hydrogen cabinet - Google Patents

Abstract

The utility model belongs to the field of hydrogen storage engineering, and relates to a membrane-sealed dry-type hydrogen cabinet which comprises a cabinet body and a piston steel structure arranged in the cabinet body, wherein a rubber sealing membrane is arranged between the inner wall of a side plate of the cabinet body and the piston steel structure, one end of the rubber sealing membrane is connected with the side plate through a rubber membrane side plate fixing structure, the other end of the rubber sealing membrane is connected with the piston steel structure through a rubber membrane piston fixing structure, a hydrogen region between a bottom plate of the cabinet body and the piston steel structure is externally connected with an emptying device, the emptying device penetrates through the side plate, and a connector of the emptying device is slightly lower than the bottom position of the rubber membrane piston fixing structure when the piston steel structure falls to the bottom. The membrane-sealed dry-type hydrogen cabinet well solves the problem of low-pressure storage of hydrogen in large-scale and nearby industrial application.

Description

Film sealing dry type hydrogen cabinet

Technical Field

The utility model belongs to the field of hydrogen storage engineering, and particularly relates to a membrane-sealed dry-type hydrogen cabinet, which is used for meeting the requirement of large-scale nearby industrial application of hydrogen.

Background

Under the large background of global reduction of carbon emission, a novel alternative energy is called for. Hydrogen energy is an efficient and clean energy source and a high-quality reducing agent, and with the development of hydrogen and the expansion of the application field, the large-scale application of hydrogen in the traditional industrial field becomes the leading edge of research.

Taking a traditional steel united enterprise as an example: the traditional blast furnace ironmaking adopts coke to provide heat and a reducing agent, the carbon emission is very high, and if part or all of the blast furnace ironmaking process can adopt hydrogen as the reducing agent, the carbon emission is greatly reduced; in steel plants, various furnaces and kilns use hydrogen gas of about 10kpa pressure as fuel. Meanwhile, under the background of large-scale utilization of wind energy and solar energy, if the intermittent and unstable new energy is made into hydrogen by adopting modes of electrolyzing water and the like for storage and adopts a low-pressure storage mode, the hydrogen demand of continuous production of each branch plant of iron and steel combination enterprises such as iron making, various furnaces and the like is met nearby, and the effect of reducing carbon emission of the traditional iron and steel combination enterprises is obvious. The hydrogen adopts a low-pressure storage mode, so that the hydrogen requirements of continuous production of users of iron and steel combination enterprises such as iron making and various furnaces and kilns are met nearby, for example, the hydrogen can be used by slightly pressurizing the hydrogen in application scenes such as using the hydrogen with the pressure level of about 10kpa as fuel, using a shaft furnace with the hydrogen of about 0.6MPa for iron making, reducing carbon emission and transforming a traditional blast furnace with the pressure of about 0.3MPa and the like, and the electric energy is saved by a lot compared with the high-pressure storage and transmission of the hydrogen.

Although cryogenic liquid storage and high pressure storage of hydrogen have been studied, low pressure storage of hydrogen is currently limited to wet chest storage. The wet cabinet application technology has the following defects: 1) the gas storage pressure is about 3 kpa; 2) the adopted water seal can humidify the hydrogen; 3) the large-scale foundation load is very large; 4) the energy is wasted in the anti-freezing problem in the north. Therefore, there is a need for a dry hydrogen tank for low-pressure storage of hydrogen, which provides a solution for low-pressure storage of hydrogen for large-scale industrial application of hydrogen.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a membrane-sealed dry hydrogen tank, which aims to solve the problem of low-pressure storage in large-scale and near-industrial application of hydrogen.

In order to achieve the purpose, the utility model provides the following technical scheme:

the working principle of the film sealing dry type hydrogen cabinet is as follows: the gas storage pressure is automatically generated by the mass of the piston, the piston steel structure adopts the form of a piston baffle frame and a vault piston plate to seal hydrogen, and a rubber sealing film is arranged between a piston baffle plate on the piston baffle frame at the periphery of the piston and a side plate of the cabinet body to realize the movable connection between the piston and the side plate of the cabinet body and seal the hydrogen. Thus, the cabinet body is divided into a hydrogen area and an air area by a rubber sealing film and a fixing structure of the vault piston plate on the side plate, one end of the rubber sealing film is fixed on the side plate, and the other end of the rubber sealing film is fixed on the fixing structure below the piston baffle frame; when the lower part of the piston is filled with hydrogen to reach the gas storage pressure, the rubber sealing film is attached to the piston baffle, and when the height of the piston is increased to the limit height position, the rubber sealing film is attached to the side plate.

This membrane sealing dry-type hydrogen cabinet, including the cabinet body with locate the internal piston steel construction of cabinet, set up the rubber seal membrane between the curb plate inner wall of the cabinet body and the piston steel construction, the one end of rubber seal membrane is passed through glued membrane curb plate fixed knot and is constructed with the curb plate and be connected, the other end passes through glued membrane piston fixed knot and constructs with the piston steel construction and be connected, the hydrogen district between the bottom plate of the cabinet body and the piston steel construction is external to have the unloading device, the unloading device runs through in the curb plate, and the interface of unloading device is less than the glued membrane piston fixed knot construct bottom position when the piston steel construction falls the end a little.

Optionally, a side plate sampling tube is arranged at a position of the side plate of the cabinet body, which is slightly lower than the bottom of the adhesive film side plate fixing structure.

Optionally, a bottom plate drainer is arranged on the bottom plate of the cabinet body, a side plate ventilation hole and a side plate manhole are arranged on the outer wall of the side plate of the cabinet body, and a ventilation clerestory is arranged on the top of the cabinet body.

Optionally, be equipped with the outside inclined ladder and the cabinet body corridor of intercommunication each other on the curb plate outer wall of the cabinet body, the cabinet body corridor comprises emptying devices valve operation platform, leveling counter weight maintenance platform, curb plate sample operation platform.

Optionally, a leveling device for balancing a piston steel structure is arranged on the top of the cabinet body, the leveling device is composed of a leveling counter weight, a counter weight guide rail, a leveling support, a steel wire rope and a guide wheel, the leveling support is fixed on the top of the cabinet, the side plate is provided with the counter weight guide rail, the leveling support and the top of the cabinet are provided with the guide wheel, the steel wire rope penetrates through the guide wheel and is connected with the piston steel structure, and the leveling counter weight in sliding fit with the counter weight guide rail is hung on the steel wire rope.

Optionally, the emptying device comprises a vertical pipe, an emptying port platform, a flame arrester, a weather-proof cap and an explosion-proof industrial television, an interface of the vertical pipe is communicated with a hydrogen region in the cabinet body through a valve, and an outlet of the vertical pipe is provided with the emptying port platform, the flame arrester, the weather-proof cap and the explosion-proof industrial television.

Optionally, a sampling tube is arranged on the piston steel structure.

Optionally, the piston steel structure includes piston plate, piston base, piston fender frame bottom shrouding, piston baffle, piston fender frame and cat ladder, piston center plate top sampling tube, and piston plate, piston fender frame bottom shrouding, piston baffle, piston fender frame and cat ladder all establish on the piston base, and piston center plate top sampling tube establishes on the piston plate.

Optionally, according to the weather conditions, a side plate electric tracing facility is arranged at a position, close to the adhesive film side plate fixing structure, of the side plate of the cabinet body, a piston electric tracing facility is arranged at a position, close to the adhesive film piston fixing structure, of the piston baffle plate, and the side plate electric tracing facility and the piston electric tracing facility are respectively composed of an electric tracing band, a heat insulation layer and a matched operation and maintenance platform.

Optionally, the gas storage pressure of the cabinet body is 2-15 kPa.

The utility model has the beneficial effects that:

1. the gas storage pressure of the membrane sealing dry-type hydrogen tank is greatly improved to 15kPa compared with that of a wet-type tank, so that a user using hydrogen as fuel within a range of several kilometers around can obtain continuous and stable hydrogen supply.

2. The dry type hydrogen cabinet with the membrane sealing provided by the utility model does not humidify hydrogen because water is not adopted as a sealing medium, and is a dry type cabinet compared with a wet type cabinet with water as a sealing medium.

3. According to the membrane-sealed dry-type hydrogen cabinet, the emptying device is configured, and the fire damper is arranged at the outlet of the emptying vertical pipe, so that hydrogen in the cabinet can be emptied quickly during an accident of the hydrogen cabinet, and the accident expansion is avoided; in order to prevent foreign matters from entering, a weather cap is arranged; and in order to monitor the working state of the emptied riser outlet equipment, an industrial television monitor with an image recognition function is configured for the vertical riser outlet equipment, and an alarm is given to a manned place.

4. In order to realize convenient hydrogen purging and replacement, the membrane-sealed dry-type hydrogen tank has the advantages that the piston plate of the piston steel structure adopts a dome-shaped vault structure, the highest position of the piston plate and the position of the side plate of the tank body, which is slightly lower than the bottom of the fixing structure of the side plate of the adhesive film, are provided with the sampling pipes, and the replacement condition of the position with unsmooth ventilation at the lower part of the piston can be sampled and checked.

5. The dry-type hydrogen tank with the membrane seal is convenient to replace and purge by connecting the emptying device from the height of the rubber membrane piston fixing structure slightly lower than the piston bottom falling position.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a hydrogen cabinet according to the preferred embodiment of the present invention;

reference numerals: 1 is a bottom plate drainer; 2 is a column; 3 is a side plate, 3-1 is a glue film side plate fixing structure, and 3-2 is a side plate sampling tube; 4 is a side plate vent hole; 5 is a manhole of a side plate; 6 is an external inclined ladder; 7 is a cabinet body corridor, 7-1 is an emptying device valve operation platform, 7-2 is a side plate heat tracing band maintenance platform, 7-3 is a leveling counterweight maintenance platform, and 7-4 is a side plate sampling operation platform; 8 is a leveling device, 8-1 is a leveling counterweight, 8-2 is a counterweight guide rail, 8-3 is a leveling bracket, 8-4 is a guide wheel, and 8-5 is a steel wire rope; 9 is an emptying device, 9-1 is a vertical pipe, 9-2 is an emptying port platform, 9-3 is a flame arrester, 9-4 is a windproof and rainproof cap, and 9-5 is an explosion-proof industrial television; 10 is a cabinet top ventilation clerestory; 11 is a rubber sealing film; 12 is a piston steel structure, 12-1 is a piston plate, 12-2 is a piston base, 12-3 is a bottom sealing plate of a piston baffle frame, 12-4 is a glue film piston fixing structure, 12-5 is a piston baffle plate, 12-6 is the piston baffle frame and a ladder stand, and 12-7 is a piston center plate top sampling tube; 13 is a side plate electric tracing facility; 14 is a piston electric tracing facility, 14-1 is an electric tracing band, and 14-2 is an insulating layer. S is the piston stroke, a is the air zone, H is the hydrogen zone, D1 is the diameter of the inner wall of the side plate, D2 is the diameter of the piston baffle, and W is the distance between the piston baffle and the side plate.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Referring to fig. 1, the dry type membrane-sealed hydrogen tank of this embodiment includes a tank body and a piston steel structure 12 disposed in the tank body, and the tank body mainly includes a bottom plate, a tank top, a column, a wind-resistant truss, a side plate 3, and the like, and a rubber sealing film 11 is disposed between an inner wall of the side plate 3 of the tank body and the piston steel structure 12, one end of the rubber sealing film 11 is connected to the side plate 3 through a rubber membrane side plate fixing structure 3-1, and the other end is connected to the piston steel structure 12 through a rubber membrane piston fixing structure 12-4, a hydrogen region H between the bottom plate of the tank body and the piston steel structure 12 is externally connected to a venting device 9, the venting device 9 penetrates through the side plate 3, and an interface of the venting device 9 is slightly lower than a position below the rubber membrane piston fixing structure 12-4 when the piston steel structure 12 falls to the bottom. In addition, an air area a is arranged between the piston steel structure 12 and the cabinet top, and the height between the bottom plate of the cabinet body and the cabinet top is a piston stroke S.

Specifically, the emptying device 9 consists of a vertical pipe 9-1, an emptying port platform 9-2, a flame arrester 9-3, a weather-proof cap 9-4 and an explosion-proof industrial television 9-5, wherein the vertical pipe 9-1 is arranged along the height direction of the cabinet body, a lower end interface of the vertical pipe is communicated with a hydrogen region H in the cabinet body through a valve, and an upper end outlet of the vertical pipe is provided with the emptying port platform 9-2, the flame arrester 9-3, the weather-proof cap 9-4 and the explosion-proof industrial television 9-5. The emptying device 9 can empty the hydrogen in the cabinet quickly when the hydrogen cabinet fails to avoid accident expansion, and the emptying device also has the functions of replacement and emergency emptying of the hydrogen cabinet, so that the emptying device 9 is provided with a remote control valve, a sampling pipe and the like after being connected with a pipeline from a height level lower than the glue film side plate fixing structure 3-1 on the side plate 3, and then is led to high-altitude emptying, thereby facilitating the emptying, replacement purging and emergency emptying of the cabinet at ultrahigh limit. In order to prevent lightning strike from being ignited, a flame arrester 9-3 and a wind and rain proof cap 9-4 are arranged at the outlet pipe orifice of the emptying device 9, and an emptying port platform 9-2 is correspondingly arranged for overhauling and maintaining; in order to monitor the working state of the outlet equipment of the emptying device, an explosion-proof industrial television 9-5 with an image recognition function is configured for the emptying device, and an alarm is given to a person on duty. The piston steel structure 12 is composed of a piston plate 12-1, a piston base 12-2, a piston baffle frame bottom sealing plate 12-3, a piston baffle plate 12-5, a piston baffle frame and a ladder stand 12-6, wherein the piston plate 12-1, the piston baffle frame bottom sealing plate 12-3, the piston baffle plate 12-5, the piston baffle frame and the ladder stand 12-6 are all arranged on the piston base 12-2. The relation among the diameter D1 of the inner wall of the lateral plate, the diameter D2 of the piston baffle, the distance W between the piston baffle and the lateral plate is as follows: d1 ═ D2+ 2W. Thus, the hydrogen cabinet piston sealing device adopts a rubber sealing film, and does not humidify hydrogen, so the hydrogen cabinet is a dry type hydrogen cabinet. The gas storage pressure is automatically generated by the mass of the piston, the piston steel structure adopts the form of a piston baffle frame and a vault piston plate to seal hydrogen, and a rubber sealing film is arranged between a piston baffle plate on the piston baffle frame at the periphery of the piston and a side plate of the cabinet body to realize the movable connection between the piston and the side plate of the cabinet body and seal the hydrogen. The inside of the cabinet body is divided into a hydrogen area and an air area by a rubber sealing film and a fixing structure of the vault piston plate on the side plate, one end of the rubber sealing film is fixed on the side plate, and the other end of the rubber sealing film is fixed on the fixing structure below the piston blocking frame; when the lower part of the piston is filled with hydrogen to reach the gas storage pressure, the rubber sealing film is attached to the piston baffle, and when the height of the piston is increased to the limit height position, the rubber sealing film is attached to the side plate. When the hydrogen production and consumption are unbalanced, the piston of the hydrogen cabinet automatically moves vertically to deliver hydrogen, the rubber sealing membrane correspondingly automatically rolls up and down along with the piston in a gap W between the side plate and the piston baffle, and the vertical movement of the piston is ensured by the leveling device. The diameter of the membrane sealing hydrogen tank is in the order of tens of meters, the membrane sealing hydrogen tank is limited by the performance of the rubber membrane, and the pressure of hydrogen under the piston can reach 2-15 kpa.

In this embodiment, the hydrogen tank has a diameter of tens of meters and a circumference of hundreds of meters; the hydrogen density is small, in order to facilitate replacement and sampling, testing and replacing results, a side plate sampling tube 3-2 is arranged on the side plate 3 and close to the lower part of the glue film side plate fixing structure 3-1, and a piston central plate top sampling tube 12-7 is arranged at the highest position of the piston plate 12-1. If a height difference exists when the piston plate 12-1 is connected with the bottom sealing plate 12-3 of the piston baffle frame, namely the bottom sealing plate 12-3 of the piston baffle frame protrudes into a hydrogen space, a sampling tube is arranged at the position where gas flows smoothly under the piston plate 12-1. For guaranteeing sealed and safe cutting off, the sampling tube on the valve adopt thread sealing's pipe thread connection, and the sampling tube mouth of pipe adopts the pipe thread stopcock of threaded seal.

In the embodiment, a bottom plate drainer 1 is arranged on a bottom plate of a cabinet body, a side plate vent hole 4 and a side plate manhole 5 are arranged on the outer wall of a side plate 3 of the cabinet body, a ventilation clerestory 10 is arranged on the top of the cabinet body, an external inclined ladder 6 and a cabinet body corridor 7 which are mutually communicated are arranged on the outer wall of the side plate 3, the cabinet body corridor 7 consists of an emptying device valve operation platform 7-1, a leveling counterweight overhaul platform 7-3 and a side plate sampling operation platform 7-4, the leveling counterweight overhaul platform 7-3 is designed for overhaul and maintenance of a leveling counterweight 8-1, and the side plate sampling operation platform 7-4 is designed for a side plate sampling pipe 3-2 below a rubber film side plate fixing structure 3-1, so that the operation platforms are synchronously configured and the replacement condition of a region with unsmooth gas circulation at the lower part of a piston can be sampled and inspected; during construction and maintenance, personnel enter the piston through the outer inclined ladder 6 and enter the manhole 5 of the side plate through the height from the side plate heat tracing band maintenance platform 7-2. In order to enhance the ventilation of the piston in the hydrogen cabinet, the hydrogen cabinet is provided with a cabinet top ventilation clerestory 10, and a plurality of side plate ventilation holes 4 are arranged on a side plate which is higher than the adhesive film side plate fixing structure 3-1.

The top of the cabinet body in the embodiment is provided with a leveling device 8 for balancing a piston steel structure 12, the leveling device 8 is composed of a leveling balance weight 8-1, a balance weight guide rail 8-2, a leveling support 8-3, a steel wire rope 8-5 and a guide wheel 8-4, the leveling support 8-3 is fixed on the top of the cabinet, the side plate 3 is provided with the balance weight guide rail 8-2, the leveling support 8-3 and the top of the cabinet are respectively provided with the guide wheel 8-4, the steel wire rope 8-5 penetrates through the guide wheel 8-4 and is connected with the piston steel structure 12, and the leveling balance weight 8-1 in sliding fit with the balance weight guide rail 8-2 is hung on the leveling device 8.

In the embodiment, a side plate electric tracing facility 13 is arranged on the side plate 3 and close to the side plate fixing structure 3-1 of the adhesive film, a piston electric tracing facility 14 is arranged on the piston baffle plate 12-5 and close to the piston fixing structure 12-4 of the adhesive film, and both the side plate electric tracing facility 13 and the piston electric tracing facility 14 are composed of an electric tracing band 14-1 and an insulating layer 14-2. The side plate electric tracing facilities 13 and the piston electric tracing facilities 14 are used only in the northern cold regions.

It is worth pointing out that the membrane sealing cabinet also has a structural form that a plurality of sections of pistons are matched with a plurality of sections of sealing membranes, and the corresponding gas storage pressure is also segmented.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (9)

1. The utility model provides a dry-type hydrogen cabinet is sealed to membrane, includes the cabinet body and locates the internal piston steel construction of cabinet, its characterized in that: set up the rubber seal membrane between the curb plate inner wall of the cabinet body and the piston steel construction, the one end of rubber seal membrane is passed through glued membrane curb plate fixed knot and is connected with the curb plate, and the other end passes through glued membrane piston fixed knot and constructs to be connected with the piston steel construction, and the hydrogen between the bottom plate of the cabinet body and the piston steel construction is distinguished externally to have a venting device, and venting device runs through in the curb plate, and the interface of venting device is less than the glued membrane piston fixed knot structure bottom position when the piston steel construction falls to the bottom a little.

2. The film-sealed dry hydrogen cabinet according to claim 1, wherein: a side plate sampling tube is arranged at the position of the side plate of the cabinet body, which is slightly lower than the bottom of the adhesive film side plate fixing structure.

3. The film-sealed dry hydrogen cabinet according to claim 1, wherein: the bottom plate of the cabinet body is provided with a bottom plate drainer, the outer wall of the side plate of the cabinet body is provided with a side plate vent hole and a side plate manhole, and the cabinet top of the cabinet body is provided with a ventilation clerestory.

4. The film-sealed dry hydrogen cabinet according to claim 1, wherein: the utility model discloses a cabinet, including the cabinet body, be equipped with the outside inclined ladder and the cabinet body corridor of intercommunication each other on the curb plate outer wall of the cabinet body, the cabinet body corridor comprises emptying devices valve operation platform, leveling counter weight maintenance platform, curb plate sample operation platform.

5. The film-sealed dry hydrogen cabinet according to claim 1, wherein: the leveling device is used for balancing a piston steel structure and is arranged on the top of the cabinet body, the leveling device is composed of a leveling balance weight, a balance weight guide rail, a leveling support, a steel wire rope and a guide wheel, the leveling support is fixed on the top of the cabinet, the balance weight guide rail is arranged on a side plate, the guide wheel is arranged on each of the leveling support and the top of the cabinet, the steel wire rope penetrates through the guide wheel and is connected with the piston steel structure, and the leveling balance weight in sliding fit with the balance weight guide rail is hung on the steel wire rope.

6. The film-sealed dry hydrogen cabinet according to claim 1, wherein: the emptying device comprises a vertical pipe, an emptying port platform, a flame arrester, a weather-proof cap and an explosion-proof industrial television, wherein an interface of the vertical pipe is communicated with a hydrogen area in the cabinet body through a valve, and an outlet of the vertical pipe is provided with the emptying port platform, the flame arrester, the weather-proof cap and the explosion-proof industrial television.

7. The film-sealed dry hydrogen cabinet according to claim 1, wherein: and the piston steel structure is provided with a sampling tube.

8. The film-sealed dry hydrogen cabinet according to claim 1, wherein: according to the weather conditions, a side plate electric tracing facility is arranged at the position, close to the glue film side plate fixing structure, of the side plate of the cabinet body, a piston electric tracing facility is arranged at the position, close to the glue film piston fixing structure, of the piston baffle, and the side plate electric tracing facility and the piston electric tracing facility are both composed of electric tracing bands and heat insulation layers.

9. The film-sealed dry hydrogen cabinet according to claim 1, wherein: the gas storage pressure of the cabinet body is 2-15 kPa.

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