CN202868302U - Intelligent and efficient and safe hydrogen supplying device - Google Patents

Abstract

An intelligent and efficient and safe hydrogen supplying device comprises a hydrogen storage element group frame, wherein the hydrogen storage element group frame is connected with a hydrogen busbar through a high pressure hydrogen transporting flexible pipe, a first level decompressor is arranged on the end portion of the hydrogen storage element group frame, a hydrogen supplying air valve, an air release valve, a replacing valve and a sampling valve are arranged on the hydrogen busbar, the air release valve is connected with a fire barrier, and the hydrogen busbar is further connected with at least one automatic switchover valve and a maintaining by-pass. The intelligent and efficient and safe hydrogen supplying device has the advantages that high pressure hydrogen bottles in the hydrogen storage element group frame are arranged in a horizontal mode, the group frame is 1700 mm long, 980 mm wide and 1270 mm high, and therefore the bottles do not fall, safety is high, and occupied space is small; hydrogen pressure is adjusted to 0.03-1.4 MPa directly from 15 MPa by the first level decompressor, and no second level decompressing is needed; and compared with two-level decompressing, a single hydrogen bottle is enabled to utilize hydrogen 1.0 Nm3 more, the hydrogen using rate is improved by approximately 20%, and operating cost is low.

Description

A kind of hydrogen supply device of intelligent and high-efficiency safety

Technical field

The utility model relates to a kind of hydrogen supply device of intelligent and high-efficiency safety.

Background technique

Utilize compressor that the by-product hydrogen of the enterprises such as single crystal silicon factory, chemical fertilizer factory is boosted in the 12-15MPa threading high-pressure cylinder, deliver to the generator hydrogen_cooling by hydrogen supply device and use.Compare with traditional hydrogen manufacturing mode and to have reduced power plant's capital investment and operating cost, meet national energy-saving and reduce discharging policy.

The storage hydrogen unit group frame inner high voltage hydrogen bottle vertical of conventional high-tension hydrogen supply device, there is security risk in easy bottle in transportation and handling process; The conventional high-tension hydrogen supply device adopts two-stage decompression, and residual pressure is high in the high-pressure cylinder, and hydrogen utilization ratio is low, and capital investment and operating cost are high; The defeated hydrogen high pressure hose of conventional high-tension hydrogen supply device under high pressure moves, and working life is short, potential safety hazard and dangerous high; Two groups of storage hydrogen unit group framves of conventional high-tension hydrogen supply device are manual switchover, and labor intensity is large.

Application number is 201110331267.5, denomination of invention is that " a kind of safe and efficient unattended power plant high pressure hydrogen-feeding system " is although also provide a kind of hydrogen-feeding system, but in this system, owing to do not adopt corresponding safety measure, so safety problem can occur aborning.

Summary of the invention

The purpose of this utility model provides a kind of safely and efficiently hydrogen supply device.

For achieving the above object, the utility model is by the following technical solutions:

A kind of hydrogen supply device of intelligent and high-efficiency safety, it comprises storage hydrogen unit group frame, described storage hydrogen unit group frame connects the hydrogen cylinder manifold by the high-pressure hydrogen transportation flexible pipe, and in the end of storage hydrogen unit group frame the one-level decompressor is set; Be provided with on the described hydrogen cylinder manifold for hydrogen valve, atmospheric valve, displacement valve and sampling cock, atmospheric valve also is connected with flame trap, and described hydrogen cylinder manifold also connects at least one automatic transfer valve and maintenance bypass.

On described hydrogen cylinder manifold, also be provided with online pressure gauge.

The horizontal layout of described storage hydrogen unit group frame inner high voltage hydrogen bottle, the 15MPa High Pressure Hydrogen bottle group that per four water capacities are 40L is in a row, and five rows are set altogether; Storage hydrogen unit group frame is of a size of 1700mm * 980mm * 1270mm.

Described hydrogen cylinder manifold also connects the hydrogen leak apparatus for examination and repair, above-mentioned hydrogen leak detection device and roof accident row hydrogen interlock of fan.

Adopt the utility model of technique scheme, have the following advantages: the horizontal layout of (1) storage hydrogen unit group frame inner high voltage hydrogen bottle, the group frame is of a size of 1700mm * 980mm * 1270mm(length * wide * height), bottle is dangerous without falling, and safe, floor space is little; (2) the one-level decompressor directly is adjusted to 0.03～1.4 MPa with Hydrogen Vapor Pressure by 15MPa, does not need second depressurized; Compare with two-stage decompression, single hydrogen bottle can utilize the about 1.0Nm3 of hydrogen more, and it is about 20% to improve hydrogen utilization ratio, and operating cost is low; (3) the inlet pressure regulator of special repacking does not have air bleed high-pressure hydrogen transportation flexible pipe and hydrogen cylinder manifold when changing storage hydrogen unit group frame, do not need to carry out inert gas purge, and safe, labor intensity is low; (4) the inlet pressure regulator of special repacking is mounted between defeated hydrogen high pressure hose and the storage hydrogen unit group frame, and is at 1.40MPa and with the downforce operation, safe for a long time, long service life; (5) automatic switchover hydrogen cylinder manifold is realized two groups of automatic switchovers between storage hydrogen unit group frame by automatic transfer valve and maintenance bypass and online pressure gauge, and is safe and reliable, simple to operate, realizes unmanned.

Description of drawings

Fig. 1 is system schematic of the present utility model.

Fig. 2 is horizontal storage hydrogen unit group frame front schematic view.

Fig. 3 is horizontal storage hydrogen unit group frame side schematic view.

Embodiment

As shown in Figure 1, a kind of hydrogen supply device of intelligent and high-efficiency safety, it comprises storage hydrogen unit group frame 1, and the end of storage hydrogen unit group frame 1 arranges one-level decompressor 2, and one-level decompressor 2 connectshydrogen cylinder manifold 4 by high-pressure hydrogen transportation flexible pipe 3.Be provided with on thehydrogen cylinder manifold 4 forhydrogen valve 11, online pressure gauge 7,atmospheric valve 8, displacement valve 9 andsampling cock 10,atmospheric valve 8 also is connected with flame trap 5, and above-mentionedhydrogen cylinder manifold 4 also connects at least one automatic transfer valve andmaintenance bypass 6.

The above-mentioned horizontal layout of storage hydrogen unit group frame 1 inner high voltage hydrogen bottle, the 15MPa High Pressure Hydrogen bottle group that per four water capacities are 40L is in a row, and five rows are set altogether; Like this, storage hydrogen unit group frame 1 integral body is of a size of 1700mm * 980mm * 1270mm.

Above-mentioned one-level decompressor 2 only arranges pressure regulator No. one time, and it is the inlet pressure regulator through repacking.

Mode of execution of the present utility model is: open the hydrogen cylinder manifold andsupply hydrogen valve 11 outward; Open hydrogen cylindermanifold sampling cock 10; Open hydrogen cylinder manifoldautomatic transfer valve 6, with the CO in the hydrogen supply cylinder manifold₂Fill to high-pressure hydrogen transportation flexible pipe 3; Open one-level decompressor 2 and go out young stop valve; Regulate the regulating handle of one-level decompressor 2, make CO₂Discharge from one-level decompressor 2 inlet union; Open hydrogen cylinder manifold hydrogenatmospheric valve 8; From hydrogen cylindermanifold sampling cock 10 and one-level decompressor 2 outlet connection place Analysis for CO₂Notice collection control operations staff stopped to fill CO after purity reached more than 95%₂Close hydrogen cylindermanifold sampling cock 10,atmospheric valve 8, one-level decompressor 2 and go out young stop valve, the female pipe of hydrogen supply and cylinder manifold internal pressure are remained on more than the 0.20MPa; One-level decompressor 2 inlet union are connected to storage hydrogen unit group frame works off one's feeling vent one's spleen on the cylinder valve; Close one-level decompressor 2 and go out young stop valve, its outlet pressure is adjusted to 0.15～0.2MPa after, open one-level decompressor 2 and go out young stop valve to the generator hydrogen supply; With CO in the hydrogen exchange generator₂The time, remain this pressure; In the generator hydrogen purity qualified by analysis after, boost gradually; Raise hydrogen pressure 0.05MPa(each time on former outlet pressure basis); Regulate one-level decompressor 2 handles, make for hydrogen pressure to be higher than all the time hydrogen pressure 0.15～0.20 MPa in the generator.Above-mentioned to be embodied as the female effective carbon dioxide replacement air of generator and hydrogen supply qualified, high pressure hydrogen-feeding system operation during the generator normal boot-strap.

Wherein automatically switchhydrogen cylinder manifold 4 interior switch valves and themaintenance bypass 6 be divided into 6A and 6B, only open one during operation.Open 6A after the operation regular period, online pressure gauge 7 low-pressures are reported to the police and interlocking close 6A opens 6B, realize that the intelligence of two groups of storage hydrogen unit group framves is switched.

Claims (4)

1. the hydrogen supply device of an intelligent and high-efficiency safety, it comprises storage hydrogen unit group frame (1), described storage hydrogen unit group frame (1) connects hydrogen cylinder manifold (4) by high-pressure hydrogen transportation flexible pipe (3), and in the end of storage hydrogen unit group frame (1) one-level decompressor (2) is set; Be provided with on the described hydrogen cylinder manifold (4) for hydrogen valve (11), atmospheric valve (8), displacement valve (9) and sampling cock (10), atmospheric valve (8) also is connected with flame trap (5), it is characterized in that: described hydrogen cylinder manifold (4) also connects at least one automatic transfer valve and maintenance bypass (6).

2. the hydrogen supply device of intelligent and high-efficiency safety according to claim 1 is characterized in that: also be provided with online pressure gauge (7) on described hydrogen cylinder manifold (4).

3. the hydrogen supply device of intelligent and high-efficiency safety according to claim 1 is characterized in that: the horizontal layout of described storage hydrogen unit group frame (1) inner high voltage hydrogen bottle, and the 15MPa High Pressure Hydrogen bottle group that per four water capacities are 40L is in a row, and five rows are set altogether; Storage hydrogen unit group frame (1) is of a size of 1700mm * 980mm * 1270mm.

4. the hydrogen supply device of intelligent and high-efficiency safety according to claim 1, it is characterized in that: described hydrogen cylinder manifold (4) also connects hydrogen leak apparatus for examination and repair (12), above-mentioned hydrogen leak detection device (12) and roof accident row hydrogen interlock of fan.

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