Explosion-proof device of hydrogen gas dispenser
阅读说明:本技术 一种氢气加气机的防爆装置 (Explosion-proof device of hydrogen gas dispenser ) 是由 柴永朋 于 2020-07-07 设计创作,主要内容包括:本发明提供一种氢气加气机的防爆装置,包括安装在氢气加气机出气口处的供气管,所述供气管远离氢气加气机的一端固定连接与PLC控制器输出端电性连接的第一电磁阀,所述第一电磁阀远离供气管的一端安装有与加气枪相连接的输气管,所述输气管靠近第一电磁阀的一端外表面安装有与其垂直布置的管接头,所述管接头远离输气管的一端安装有与PLC控制器输出端电性连接的第二电磁阀,所述第二电磁阀远离管接头的一端安装有第一连接管,所述第一连接管远离第二电磁阀的一端连接与PLC控制器输出端电性连接的抽气泵的进气端,与现有技术相比,本发明具有如下的有益效果:实现便捷抽出输气管内残留的氢气,提高安全性。(The invention provides an explosion-proof device of a hydrogen dispenser, which comprises an air supply pipe arranged at the air outlet of the hydrogen dispenser, one end of the gas supply pipe, which is far away from the hydrogen gas dispenser, is fixedly connected with a first electromagnetic valve which is electrically connected with the output end of the PLC, the end of the first electromagnetic valve far away from the air supply pipe is provided with an air pipe connected with the air gun, the outer surface of the end of the air pipe close to the first electromagnetic valve is provided with a pipe joint vertically arranged with the air pipe, a second electromagnetic valve which is electrically connected with the output end of the PLC controller is arranged at one end of the pipe joint far away from the gas transmission pipe, compared with the prior art, the invention has the following beneficial effects that: the residual hydrogen in the gas transmission pipe can be conveniently pumped out, and the safety is improved.)
1. The utility model provides an explosion-proof equipment of hydrogen gas dispenser, is including installing at gas supply pipe (1) of hydrogen gas dispenser gas outlet department, its characterized in that: one end fixed connection and the PLC controller output electric connection's of hydrogen gas dispenser first solenoid valve (2) are kept away from in air supply pipe (1), the one end that air supply pipe (1) was kept away from in first solenoid valve (2) is installed and is connected with the air gun air-supply pipe (3), the one end surface mounting that first solenoid valve (2) were kept away from in air-supply pipe (3) is to first check valve (7) that air-supply pipe (3) direction switched on, the one end surface mounting that air-supply pipe (3) are close to first solenoid valve (2) has pipe joint (8) of arranging rather than the perpendicular, pipe joint (8) are kept away from the one end of air-supply pipe (3) and are installed second solenoid valve (9) with PLC controller output electric connection, first connecting pipe (10) are installed to the one end that pipe joint (8) were kept away from in second solenoid valve (9), first connecting pipe (10) are kept away from the one end connection of second solenoid valve (9) and are bled The air inlet end of pump (11), the end installation second connecting pipe (12) of giving vent to anger of aspiration pump (11), one end fixed connection second check valve (13) of aspiration pump (11) are kept away from in second connecting pipe (12), gas holder (14) is connected to the one end that second connecting pipe (12) were kept away from in second check valve (13), second check valve (13) switch on to gas holder (14) direction.
2. The explosion-proof device of a hydrogen dispenser according to claim 1, wherein: the cover is equipped with first semicircle board (6) and second semicircle board (25) on gas-supply pipe (3), first semicircle board (6) are through connecting bolt and second semicircle board (25) fixed connection, first semicircle board (6) surface fixed connection is used for storing cylinder (4) of moisture, the one end surface processing of keeping away from first semicircle board (6) in cylinder (4) has the external screw thread, cylinder (4) processing has one end threaded connection of external screw thread to have interior screw cap (5), cylinder (4) are close to the one end of first semicircle board (6) and install rubber circle (28) of laminating mutually with gas-supply pipe (3) surface.
3. The explosion-proof device of a hydrogen dispenser according to claim 2, wherein: the both ends of first semicircle board (6) all are fixed with first even board (26), first even board (26) and first semicircle board (6) are the integrated into one piece structure, the both ends of second semicircle board (25) all are fixed with and link board (27) with first link board (26) matched with second, the second links board (27) and second semicircle board (25) and is the integrated into one piece structure, first even board (26) links board (27) fixed connection through connecting bolt and second.
4. The explosion-proof device of a hydrogen dispenser according to claim 2, wherein: a sealing ring (29) is arranged in the internal thread cover (5), and the sealing ring (29) is arranged between the cylinder body (4) and the internal thread cover (5).
5. The explosion-proof device of a hydrogen dispenser according to claim 1, wherein: the outer fixed surface of gas holder (14) has water storage cover (23) that is used for storing moisture, the crossing department of water storage cover (23) and gas holder (14) installs blast pipe (24) that are linked together with gas holder (14), the one end that gas holder (14) were kept away from in blast pipe (24) runs through water storage cover (23) and connects discharge valve (17).
6. The explosion-proof device of a hydrogen dispenser according to claim 5, wherein: be equipped with raceway (18) directly over discharge valve (17), a plurality of shower nozzle (22) are installed in the position that raceway (18) is in directly over discharge valve (17), water pump (19) play water end is connected to the one end that shower nozzle (22) were kept away from in gas-supply pipe (3), water pump (19) are intake and are held and connect water storage tank (21) through third connecting pipe (20).
7. The explosion-proof device of a hydrogen dispenser according to claim 1, wherein: the utility model discloses a gas storage tank, including gas holder (14), hollow tube (15) surface mounting has hollow tube (15), the one end that gas holder (14) were kept away from in hollow tube (15) is fixed with the flange, bolted connection blind plate (16) are passed through to one side that the flange deviates from hollow tube (15).
Technical Field
The invention relates to an explosion-proof device of a hydrogen dispenser, belonging to the technical field of hydrogen dispensers.
Background
Hydrogen is an important clean energy, and hydrogen production commonly used in industrial processes includes hydrogen production by water electrolysis, hydrogen extraction by-product in chemical processes and the like. In the process of energy conversion and utilization, hydrogen generates the most abundant water resources on the earth, does not generate greenhouse gases such as carbon dioxide and the like, and is called as ideal ultimate energy. At present, for realizing explosion-proof, generally utilize hydrogen alarm to detect hydrogen content in the surrounding environment, when hydrogen reached the warning lower limit, the PLC controller control adds the mechanism of qi solenoid valve and closes, nevertheless the solenoid valve that admits air is closed the back, still exists hydrogen in the gas transmission pipe between solenoid valve and the gas gun of admitting air, has the potential safety hazard, and explosion-proof effect is not good.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an explosion-proof device of a hydrogen gas dispenser, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: an explosion-proof device of a hydrogen gas dispenser comprises an air supply pipe arranged at the air outlet of the hydrogen gas dispenser, wherein the air supply pipe is far away from a first electromagnetic valve which is electrically connected with the output end of a PLC controller and is fixedly connected with one end of the hydrogen gas dispenser, the air supply pipe is far away from the air supply pipe and is provided with an air supply pipe connected with an air gun, the outer surface of one end of the air supply pipe far away from the first electromagnetic valve is provided with a first one-way valve communicated with the direction of the air supply pipe, the outer surface of one end of the air supply pipe close to the first electromagnetic valve is provided with a pipe joint which is vertically arranged with the air supply pipe, one end of the pipe joint far away from the air supply pipe is provided with a second electromagnetic valve which is electrically connected with the output end of the PLC controller, one end of the second electromagnetic valve far away from the pipe joint is provided with a first connecting pipe, the air outlet end of the air pump is provided with a second connecting pipe, one end, far away from the air pump, of the second connecting pipe is fixedly connected with a second one-way valve, one end, far away from the second connecting pipe, of the second one-way valve is connected with an air storage tank, and the second one-way valve is conducted towards the direction of the air storage tank.
Further, the cover is equipped with first semicircle board and second semicircle board on the gas-supply pipe, first semicircle board passes through connecting bolt and second semicircle board fixed connection, first semicircle board surface fixed connection is used for storing the cylinder of moisture, the one end surface processing that first semicircle board was kept away from to the cylinder has the external screw thread, the one end threaded connection that cylinder processing has the external screw thread has the internal thread lid, the rubber circle of laminating mutually with the gas-supply pipe surface is installed to the one end that the cylinder is close to first semicircle board.
Furthermore, the both ends of first semicircle board all are fixed with first even board, first even board and first semicircle board are integrated into one piece structure, the both ends of second semicircle board all are fixed with even board with first link matched with second, the second is even board and second semicircle board and is integrated into one piece structure, first even board passes through connecting bolt and second even board fixed connection.
Further, a sealing ring is arranged in the internal thread cover and is arranged between the cylinder body and the internal thread cover.
Further, a water storage cover for storing water is fixed on the outer surface of the gas storage tank, an exhaust pipe communicated with the gas storage tank is installed at the intersection of the water storage cover and the gas storage tank, and one end, far away from the gas storage tank, of the exhaust pipe penetrates through the water storage cover and is connected with an exhaust valve.
Furthermore, a water delivery pipe is arranged right above the exhaust valve, a plurality of spray heads are installed at the position, located right above the exhaust valve, of the water delivery pipe, one end, far away from the spray heads, of the gas delivery pipe is connected with a water outlet end of the water pump, and a water inlet end of the water pump is connected with the water storage tank through a third connecting pipe.
Further, the outer surface of the gas storage tank is provided with a hollow pipe, one end, away from the gas storage tank, of the hollow pipe is fixed with a flange, and one side, away from the hollow pipe, of the flange is connected with a blind plate through a bolt.
The invention has the beneficial effects that: 1. after the first electromagnetic valve is closed, the PLC controller controls the second electromagnetic valve to be opened and the air pump to work, and then hydrogen in the gas transmission pipe between the first electromagnetic valve and the gas filling gun is pumped out by the air pump to be temporarily stored in the gas storage tank, so that residual hydrogen in the gas transmission pipe can be conveniently pumped out, and the safety is improved.
2. When the hydrogen in the gas transmission pipe is pumped out, the first one-way valve is opened under the action of the pressure difference, and then the outside air flows into the gas transmission pipe, so that the pressure balance in the gas transmission pipe is maintained, the gas transmission pipe is prevented from being damaged under the action of the pressure difference or the gas leakage at the connection part of the gas transmission pipe is prevented, and meanwhile, the second one-way valve is arranged between the air suction pump and the gas storage tank, so that the effect of preventing the gas in the gas storage tank from flowing back is achieved.
3. Utilize connecting bolt to fix first semicircle board and second semicircle board on the gas-supply pipe, and make the structure that first semicircle board and second semicircle board are constituteed be in the junction of gas-supply pipe, accomplish the mutual assembly of cylinder and gas-supply pipe, the rubber circle laminating of installation on the cylinder is on the gas-supply pipe surface simultaneously, when adding suitable amount of moisture to the cylinder is internal, the moisture overflows through the crossing department of cylinder and gas-supply pipe, after adding suitable amount of moisture in the cylinder, disappear after the static transfer that produces on the gas-supply pipe disappears to the moisture in the cylinder, play the effect of eliminating gas-supply pipe surface static, further improve the security.
4. The blast pipe of connecting on the discharge valve runs through the water storage cover of storing appropriate amount moisture, plays the effect of preventing discharge valve department and producing static, and when opening discharge valve, control water pump work simultaneously, water pump work is with in the water storage tank moisture pump sending to the water delivery pipe, and moisture sprays around discharge valve through the shower nozzle afterwards, prevents the condition that hydrogen deflagration appears in the exhaust process, improves the security.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of an explosion-proof device of a hydrogen dispenser according to the present invention;
FIG. 2 is an enlarged view of the position A in the explosion-proof device of the hydrogen dispenser according to the present invention;
FIG. 3 is an enlarged view of the position B in the explosion-proof device of the hydrogen dispenser according to the present invention;
FIG. 4 is a schematic view illustrating the assembly of the first semicircular plate, the second semicircular plate and the cylinder in the explosion-proof apparatus of the hydrogen dispenser according to the present invention;
in the figure: 1-air supply pipe, 2-first electromagnetic valve, 3-air pipe, 4-cylinder, 5-internal thread cover, 6-first semicircle plate, 7-first one-way valve, 8-pipe joint, 9-second electromagnetic valve, 10-first connecting pipe, 11-air pump, 12-second connecting pipe, 13-second one-way valve, 14-air storage tank, 15-hollow pipe, 16-blind plate, 17-exhaust valve, 18-water pipe, 19-water pump, 20-third connecting pipe, 21-water storage tank, 22-nozzle, 23-water storage cover, 24-exhaust pipe, 25-second semicircle plate, 26-first connecting plate, 27-second connecting plate, 28-rubber ring, 29-sealing ring.
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.
Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides an explosion-proof equipment of hydrogen gas dispenser, is including installing the
The
The outer surface of one end of the
One end of the first connecting
As an embodiment of the present invention: the cover is equipped with
The one end surface processing that
The
As an embodiment of the present invention: both ends of
As an embodiment of the present invention: a sealing ring 29 is arranged in the
As an embodiment of the present invention: a
As an embodiment of the present invention: be equipped with raceway 18 directly over discharge valve 17, a plurality of
As an embodiment of the present invention: 14 surface mounting of gas holder has
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
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