Corrugated pipe stop valve for hydrogen device

Abstract

The utility model relates to the technical field of stop valves, and particularly discloses a corrugated pipe stop valve for a hydrogen device, which comprises a valve main body, a feeding pipe is fixedly mounted at the front end of the valve main body, a discharging pipe is fixedly mounted at the rear end of the valve main body, a conveying pipe penetrates out of the interior of the feeding pipe, and a filtering mechanism is arranged in the conveying pipe; the filtering mechanism comprises a rubber ring, the rubber ring is fixedly installed in the conveying pipe, through the molecular sieve and the silica gel filler, circulating hydrogen can be dried, moisture and water vapor contained in the circulating hydrogen can be adsorbed, the dryness of the circulating hydrogen can be kept, and the circulating hydrogen can be recycled. Meanwhile, due to the characteristics of the molecular sieve and the silica gel filler, after excessive moisture is adsorbed, the hydrogen is rapidly disassembled and assembled and then can be secondarily used through high-temperature drying treatment, rapid disassembly, assembly, replacement and maintenance can be conveniently carried out, meanwhile, the hydrogen is filtered through the filter screen, and the circulating hydrogen is prevented from containing impurities, dust and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stop valve especially is hydrogen device is with bellows pipe stop valve. BACKGROUND

[0002] Hydrogen device refers to the combination of equipment for a series of processes such as production, storage, transportation and utilization of hydrogen. These devices work cooperatively to realize the complete process from hydrogen production to final application. In the process of hydrogen flow, in order to maintain mutual flow, the bellows stop valve and the pipeline are usually matched for transportation and control.

[0003] In the prior art, the bellows stop valve controls the flow of medium by moving up and down. The valve stem connects the valve disc and the hand wheel for transmitting operating force. The bellows is connected to the valve stem at one end and to the valve body or valve cover at the other end, which completely isolates the valve stem from the medium and allows the medium to flow.

[0004] In the prior art, the bellows stop valve is matched with the pipeline to transport hydrogen. However, in actual use, due to the long transportation distance, water or water vapor is easily mixed into the hydrogen during storage and transportation, which affects the quality of hydrogen and may affect the subsequent processing. SUMMARY

[0005] The utility model discloses a bellows stop valve for hydrogen device, which can dry the flowing hydrogen, adsorb the water and water vapor contained in the flowing hydrogen, maintain the dryness of the flowing hydrogen, and be reused after high-temperature drying treatment after rapid disassembly due to the inherent properties of the molecular sieve and silica gel filler, thereby solving the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a bellows stop valve for hydrogen device, comprising a valve body, a feed pipe is fixedly installed at the front end of the valve body, and a discharge pipe is fixedly installed at the rear end of the valve body, a conveying pipe penetrates through the inside of the feed pipe, and a filter mechanism is arranged in the inside of the conveying pipe.

[0007] The filter mechanism comprises a rubber ring, the rubber ring is fixedly installed in the inside of the conveying pipe, a contact ring is fixedly installed at one end of the rubber ring penetrating into the conveying pipe, a molecular sieve penetrates through the inside of the rubber ring, a receiving shell is fixedly installed on the outer wall of the molecular sieve, a silica gel filler is fixedly installed in the inside of the receiving shell, and a filter screen is embedded at the front end of the receiving shell.

[0008] Preferably, the outer part of the conveying pipe is sleeved with a threaded sleeve, and a connecting pipe is arranged on one side of the threaded sleeve and penetrates the threaded sleeve, and a connecting flange is fixedly arranged on one end of the connecting pipe penetrating the threaded sleeve.

[0009] Preferably, the threaded sleeve is threadedly connected with the conveying pipe, and the conveying pipe is adhesively connected with the rubber ring.

[0010] Preferably, a sealing mechanism is arranged on one side of the threaded sleeve, and the sealing mechanism comprises a sleeve ring fixedly arranged on the outer side of the threaded sleeve, and an outer air bag sleeved in the sleeve ring.

[0011] Preferably, a conveying air bag is fixedly arranged on one end of the outer air bag penetrating the connecting pipe, and a limiting air bag is fixedly arranged on the end of the conveying air bag away from the outer air bag.

[0012] Preferably, a rubber layer is arranged between the connecting pipe and the limiting air bag, and a receiving ring is fixedly arranged on one end of the limiting air bag.

[0013] Preferably, the outer air bag is communicated with the limiting air bag through the conveying air bag, and the limiting air bag is adhesively connected with the rubber layer.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. The hydrogen gas flowing through the molecular sieve and silica gel filler can be dried, the water and water vapor contained in the hydrogen gas can be adsorbed, and the dryness of the hydrogen gas can be maintained. After the molecular sieve and silica gel filler are adsorbed with too much water, they can be quickly disassembled, dried at high temperature, and then used again. The filter screen can filter the hydrogen gas itself to avoid impurities and dust in the hydrogen gas.

[0016] 2. The communication between the outer air bag and the limiting air bag can make the two ends of the molecular sieve and the receiving shell be limited and resisted after the threaded sleeve is connected, so that the stability of the conveying gas process can be maintained, and the loosening or loosening of the threaded sleeve can be avoided to affect the drying of the hydrogen gas. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0018] Figure 1The overall structure view of the utility model;

[0019] Figure 2 The contact ring structure schematic view of the utility model;

[0020] Figure 3 The utility model provides a Figure 2 The enlarged view of A;

[0021] Figure 4 The rubber layer structure schematic view of the utility model;

[0022] Figure 5 The contact ring structure schematic view of the utility model.

[0023] Mark explanation:

[0024] 1, valve body, 2, feed pipe, 3, discharge pipe, 4, conveying pipe, 5, filter mechanism, 501, rubber ring, 502, contact ring, 503, molecular sieve, 504, storage shell, 505, filter screen, 506, silica gel filler, 507, threaded sleeve, 508, connecting pipe, 509, adapter flange, 6, sealing mechanism, 601, collar, 602, external air bag, 603, conveying air bag, 604, limiting air bag, 605, rubber layer, 606, contact ring. Specific embodiments

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] The utility model provides a technical scheme:

[0027] Please refer to Figures 1 to 3The utility model provides a corrugated pipe stop valve for hydrogen device, including valve body 1, the front end fixed mounting of valve body 1 has feed pipe 2, the rear end fixed mounting of valve body 1 has discharge pipe 3, the inside of feed pipe 2 is worn and goes out and is sent pipe 4, and the inside of sent pipe 4 is provided with filter mechanism 5, filter mechanism 5 includes rubber ring 501, and rubber ring 501 fixed mounting is in the inside of sent pipe 4, and the one end of rubber ring 501 is worn and goes out and is fixed mounting and is in contact ring 502, and the inside of rubber ring 501 is worn and goes out and is molecular sieve 503, and the outer wall of molecular sieve 503 is fixed mounting and is received shell 504, and the inside of received shell 504 is fixed mounting and is silica gel filler 506, and the front end of received shell 504 is embedded and is filter screen 505, and the outside of sent pipe 4 is set up with threaded sleeve 507, and the one side of threaded sleeve 507 inside sent pipe 4 is worn and goes out and is connected pipe 508, and the one end of connected pipe 508 is worn and goes out and is fixed mounting and is connected flange 509, and threaded sleeve 507 is connected with sent pipe 4 screw, and sent pipe 4 is bonded with rubber ring 501 and connects.

[0028] Through the above technical scheme, the rubber ring 501 and the contact ring 502 fixed inside the feed pipe 2 are convenient to insert and limit the molecular sieve 503 and the receiving shell 504, the receiving shell 504 is detachably provided with the filter screen 505, the silica gel filler 506 is placed to avoid separation, the double effects of the molecular sieve 503 and the silica gel filler 506 can absorb the moisture and water vapor contained in the hydrogen during the hydrogen conveying process, keep the dryness of the gas flowing between the hydrogen device and the valve body 1, avoid the influence of the non-dry hydrogen on the next process or procedure, and cooperate with the filter screen 505 to filter the hydrogen itself to avoid the flow of dust and impurities, play a purification effect, and cooperate with the threaded sleeve 507 to screw the connection between the sent pipe 4 and the connected pipe 508, keep the closed nature of the gas flow, and facilitate the disassembly of the molecular sieve 503 and the receiving shell 504, and the secondary use after drying treatment.

[0029] Specifically, as shown in Figure 2 , Figure 4 and Figure 5 , one side of the threaded sleeve 507 is provided with a sealing mechanism 6, the sealing mechanism 6 includes a sleeve ring 601, the sleeve ring 601 is fixedly installed on one side of the outer side of the threaded sleeve 507, the sleeve ring 601 is sleeved with an outer air bag 602 inside, the outer air bag 602 is fixedly installed with a conveying air bag 603 at one end penetrating into the connected pipe 508, the conveying air bag 603 is fixedly installed with a limiting air bag 604 away from the outer air bag 602, a rubber layer 605 is embedded between the connected pipe 508 and the limiting air bag 604, the limiting air bag 604 is fixedly installed with a receiving ring 606 at one end, the outer air bag 602 communicates with the limiting air bag 604 through the conveying air bag 603, and the limiting air bag 604 is bonded with the rubber layer 605.

[0030] By adopting the technical scheme, when the threaded sleeve 507 is screwed to slide, the sleeve ring 601 is driven to slide along the outer wall of the connecting pipe 508, thereby extruding the external air bag 602, allowing the gas to enter the limiting air bag 604 through the conveying air bag 603, thereby unfolding into a circular ring form, and driving the receiving ring 606 to abut against the receiving shell 504 from the other end, so that the molecular sieve 503 and the receiving shell 504 are completely sleeved and limited to avoid loosening or shaking, thereby generating a gap to cause gas penetration, affecting the adsorption of hydrogen moisture and water vapor, and causing the hydrogen to be unable to be completely dried, and the rubber layer 605 is further improved to improve the sealing effect.

[0031] Working principle: The hydrogen device is fixedly connected with the valve body 1 through the connecting flange 509, enters the valve body 1 through the connecting pipe 508, the conveying pipe 4 and the feed pipe 2, and is discharged through the discharge pipe 3, and the rubber ring 501 and the abutting ring 502 fixed in the conveying pipe 4, the sleeved molecular sieve 503 and the silica gel filler 506 in the receiving shell 504 can adsorb the moisture and water vapor in the conveyed hydrogen, and the filter screen 505 can filter dust and impurities, the threaded sleeve 507 is screwed with the conveying pipe 4 and the connecting pipe 508, so that the molecular sieve 503 and the receiving shell 504 can be quickly disassembled and maintained, when the threaded sleeve 507 is screwed to slide, the sleeve ring 601 is driven to slide along the external air bag 602, thereby extruding the internal gas to enter the limiting air bag 604 through the conveying air bag 603, so that the limiting air bag 604 can be filled to drive the receiving ring 606 to abut against the receiving shell 504 from the other end, so that the molecular sieve 503 and the receiving shell 504 are abutted to avoid loosening and generate a gap to cause leakage, and the rubber layer 605 is further improved to improve the sealing property.

[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bellows shut-off valve for a hydrogen device, comprising a valve body (1), characterized in that: The valve body (1) is fixedly installed with a feed pipe (2) at the front end and a discharge pipe (3) at the rear end. A conveying pipe (4) extends through the inside of the feed pipe (2) and a filter mechanism (5) is provided inside the conveying pipe (4). The filtration mechanism (5) includes a rubber ring (501), which is fixedly installed inside the conveying pipe (4). An abutment ring (502) is fixedly installed at one end of the rubber ring (501) that penetrates the conveying pipe (4). A molecular sieve (503) extends out from inside the rubber ring (501), and a storage shell (504) is fixedly installed on the outer wall of the molecular sieve (503). A silica gel filler (506) is fixedly installed inside the storage shell (504), and a filter screen (505) is embedded at the front end of the storage shell (504).

2. The bellows shut-off valve for a hydrogen device according to claim 1, characterized in that: The conveying pipe (4) is fitted with a threaded sleeve (507), and a connecting pipe (508) extends out from one side of the conveying pipe (4) inside the threaded sleeve (507). A connecting flange (509) is fixedly installed at one end of the connecting pipe (508) that extends out from the threaded sleeve (507).

3. A bellows shut-off valve for a hydrogen device according to claim 2, characterized in that: The threaded sleeve (507) is threadedly connected to the conveying pipe (4), and the conveying pipe (4) is bonded to the rubber ring (501).

4. A bellows shut-off valve for a hydrogen device according to claim 2, characterized in that: A sealing mechanism (6) is provided on one side of the threaded sleeve (507). The sealing mechanism (6) includes a collar (601). The collar (601) is fixedly installed on the outer side of the threaded sleeve (507), and an external airbag (602) is sleeved inside the collar (601).

5. A bellows shut-off valve for a hydrogen device according to claim 4, characterized in that: The external airbag (602) is inserted into the connecting tube (508) and a delivery airbag (603) is fixedly installed at one end, and a limiting airbag (604) is fixedly installed at the other end of the delivery airbag (603) away from the external airbag (602).

6. A bellows shut-off valve for a hydrogen device according to claim 5, characterized in that: A rubber layer (605) is embedded between the connecting tube (508) and the limiting airbag (604), and a receiving ring (606) is fixedly installed at one end of the limiting airbag (604).

7. A bellows shut-off valve for a hydrogen device according to claim 6, characterized in that: The external airbag (602) communicates with the limiting airbag (604) through the delivery airbag (603), and the limiting airbag (604) is bonded to the rubber layer (605).

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