CN114673794A - Explosion-proof valve for hydrogen aerostat - Google Patents

Explosion-proof valve for hydrogen aerostat Download PDF

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Publication number
CN114673794A
CN114673794A CN202210374907.9A CN202210374907A CN114673794A CN 114673794 A CN114673794 A CN 114673794A CN 202210374907 A CN202210374907 A CN 202210374907A CN 114673794 A CN114673794 A CN 114673794A
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CN
China
Prior art keywords
explosion
proof
valve
linear motor
hydrogen
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210374907.9A
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Chinese (zh)
Inventor
刘立超
万小刚
韦开君
吴晴
李翔
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CETC 38 Research Institute
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CETC 38 Research Institute
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Publication date
Application filed by CETC 38 Research Institute filed Critical CETC 38 Research Institute
Priority to CN202210374907.9A priority Critical patent/CN114673794A/en
Publication of CN114673794A publication Critical patent/CN114673794A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

The invention discloses an explosion-proof valve for a hydrogen aerostat, which comprises: the valve comprises a valve seat, a valve cover, a push rod, an explosion-proof linear motor and a connecting piece; the valve seat is provided with a vent hole which is communicated along the axial direction of the valve seat, and the valve cover is in sealing and abutting connection with the end face of one end of the valve seat; the push rod is arranged in the vent hole, one end of the push rod extends out of the vent hole and is fixedly connected with the valve cover, the other end of the push rod extends out of the vent hole and is fixedly connected with an output shaft of the explosion-proof linear motor, and the explosion-proof linear motor is fixedly connected with the valve seat through a connecting piece. The invention can directly drive the push rod to move through the explosion-proof linear motor so that the valve cover is in sealing butt joint with the valve seat or is separated from the valve seat to realize the opening and closing of the explosion-proof valve, and simultaneously, the penetration of hydrogen into the interior of the explosion-proof linear motor can be avoided or reduced.

Description

Explosion-proof valve for hydrogen aerostat
Technical Field
The invention relates to the technical field of aerostatics, in particular to an explosion-proof valve for a hydrogen aerostat.
Background
At present, most of buoyancy gas for the aerostat is helium, helium is inert gas, and is always favored by the field of the aerostat due to stable performance and reliable use, but helium is seriously deficient in China, high in import dependence degree, expensive in price and non-renewable, and belongs to rare strategic resources. Hydrogen has the advantages of easy preparation, completely autonomous control, low price and the like, but due to the active chemical property, the safety in the use process needs to be paid great attention, for example, in the opening and exhaust process of a valve, hydrogen can possibly permeate into the motor, and if electric arcs, sparks and the like are generated in the working process of electric parts of the motor, the danger of igniting and igniting the hydrogen is caused.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides an explosion-proof valve for a hydrogen aerostat.
The invention provides an explosion-proof valve for a hydrogen aerostat, which comprises: the valve comprises a valve seat, a valve cover, a push rod, an explosion-proof linear motor and a connecting piece;
the valve seat is provided with a vent hole which is communicated along the axial direction of the valve seat, and the valve cover is in sealing and abutting connection with the end face of one end of the valve seat;
the push rod is arranged in the vent hole, one end of the push rod extends out of the vent hole and is fixedly connected with the valve cover, the other end of the push rod extends out of the vent hole and is fixedly connected with an output shaft of the explosion-proof linear motor, and the explosion-proof linear motor is fixedly connected with the valve seat through a connecting piece.
Preferably, the end surface of the valve seat facing the valve cover is provided with a first sealing ring for sealing abutment with the valve cover.
Preferably, the top of the valve cover corresponding to the first sealing ring is provided with a tubular blade for sealing and abutting against the first sealing ring.
Preferably, the explosion-proof linear motor further comprises a screw rod, one end of the screw rod is in threaded connection with an output shaft of the explosion-proof linear motor, and the other end of the screw rod is in threaded connection with the push rod.
Preferably, the end of the valve seat facing the valve cover is provided with a mounting pressing plate assembly for pressing the capsule body.
Preferably, the explosion-proof linear motor comprises an explosion-proof shell and a linear motor;
the linear motor is arranged in the explosion-proof shell, an output shaft of the linear motor penetrates out of the explosion-proof shell and is fixedly connected with the push rod, and the output shaft of the linear motor is in sliding seal with the explosion-proof shell.
Preferably, the explosion-proof device further comprises a hydrogen concentration detection probe and a hydrogen concentration detector, wherein the hydrogen concentration detection probe and the hydrogen concentration detector are both arranged in the explosion-proof shell, and the hydrogen concentration detection probe is electrically connected with the hydrogen concentration detector.
According to the explosion-proof valve for the hydrogen aerostat, the push rod is directly driven by the explosion-proof linear motor to reciprocate along the axial direction of the vent hole, so that the valve cover is driven by the push rod to reciprocate along the axial direction of the valve seat, the valve cover and the valve seat are separated or in sealing butt joint with each other, the vent hole is opened and closed, the structure is simple, an additional device for changing the rotary motion of the rotary motor into linear motion is not needed, various positioning errors caused by an intermediate link can be eliminated, and the positioning precision is high. In addition, the explosion-proof linear motor is a motor which can be used in flammable and explosive places, and can prevent or reduce the permeation of hydrogen into the interior of the explosion-proof linear motor.
Drawings
Fig. 1 is a schematic structural diagram of an explosion-proof valve for a hydrogen aerostat according to the present invention.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is a schematic structural view of an explosion-proof valve mounted on a capsule in the present invention.
Description of reference numerals:
1-valve seat 2-valve cover 3-push rod 4-explosion-proof linear motor 401-explosion-proof shell 402-linear motor
5-screw rod 6-capsule 7-first sealing ring 8-hydrogen concentration detection probe 9-hydrogen concentration detector 10-connecting piece 11-mounting pressing plate 12-fastener
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 3, the invention provides an explosion-proof valve for a hydrogen aerostat, comprising: the valve comprises a valve seat 1, a valve cover 2, a push rod 3, an explosion-proof linear motor 4 and a connecting piece 10;
the valve seat 1 is provided with a vent hole which is communicated along the axial direction of the valve seat, and the valve cover 2 is in sealing and abutting connection with the end face of one end of the valve seat 1;
the push rod 3 is arranged in the vent hole, one end of the push rod 3 extends out of the vent hole and is fixedly connected with the valve cover 2, the other end of the push rod 3 extends out of the vent hole and is fixedly connected with an output shaft of the explosion-proof linear motor 4, and the explosion-proof linear motor 4 is fixedly connected with the valve seat 1 through a connecting piece 10.
The anti-explosion linear motor 4 directly drives the push rod 3 to slide in a reciprocating manner along the axial direction of the vent hole, so that the valve cover 2 is driven by the push rod 3 to move in a reciprocating manner along the axial direction of the valve seat 1, and is in sealing contact with or separated from the valve seat 1 to seal or open the vent hole. In addition, the explosion-proof linear motor 4 is a motor which can be used in flammable and explosive places, and can prevent or reduce the permeation of hydrogen into the inside of the explosion-proof linear motor 4, so that the possibility that the hydrogen is ignited and detonated by electric arcs or sparks generated by the operation of electric components inside the explosion-proof linear motor 4 is avoided.
It will be appreciated that the connector 10 in this embodiment is a non-closed structure, allowing gas vented from the vent to be vented directly to the environment. Specifically, the connecting member 10 is a connecting frame body composed of one or more connecting rods.
In order to improve the sealing performance when the valve seat 1 and the bonnet 2 are sealed, in the present embodiment, a first seal ring 7 for sealing contact with the bonnet 2 is provided on an end surface of the valve seat 1 facing the bonnet 2.
In this embodiment, a tubular blade for sealing and abutting against the first sealing ring 7 is disposed at the top of the valve cover 2 corresponding to the first sealing ring 7, so as to improve the sealing effect between the valve cover 2 and the first sealing ring 7.
In the embodiment, the anti-explosion linear motor further comprises a screw rod 5, one end of the screw rod 5 is in threaded connection with an output shaft of the anti-explosion linear motor 4, and the other end of the screw rod 5 is in threaded connection with the push rod 3. So make things convenient for the fixed of push rod 3 and explosion-proof linear electric motor 4's output shaft, be convenient for moreover through the thread tightening's of accommodate the lead screw 5 and explosion-proof linear electric motor 4 output shaft position and lead screw 5 and the 3 thread tightening's of push rod position adjust the straight line distance between explosion-proof linear electric motor 4's output shaft and the push rod 3 to reach the purpose of adjusting the sealed effect of valve gap 2 to first sealing washer 7.
In order to conveniently mount the explosion-proof valve on the capsule 6 of the aerostat, in the embodiment, a mounting pressure plate assembly for pressing the capsule 6 is arranged on one end of the valve seat 1 facing the valve cover 2.
In a further embodiment, the mounting platen assembly comprises an annular mounting platen 11 and fasteners 12, the annular mounting platen 11 and the valve seat 1 cooperating to clamp the mouth of the bladder 6 and being fastened by the fasteners.
Of course, the inner diameter of the annular mounting pressure plate 11 is larger than the diameter of the bonnet 2.
In a further embodiment, a second sealing ring for sealing and contacting the capsule 6 is arranged on the annular mounting pressure plate 11, and a third sealing ring for sealing and contacting the capsule 6 is arranged on the end surface of the valve seat 1 facing the annular mounting pressure plate 11, so as to improve the sealing performance of the connection between the capsule 6 and the valve seat 1.
In one embodiment, the explosion-proof linear motor 4 comprises an explosion-proof housing 401 and a linear motor 402, the linear motor 402 is disposed in the explosion-proof housing 401, an output shaft of the linear motor 402 penetrates through the explosion-proof housing 401 and is fixedly connected with the lead screw 5, and the output shaft of the linear motor 402 is in sliding seal with the explosion-proof housing 401. So set up, explosion-proof casing 401 effectively keeps apart linear electric motor 402's inside electrical component and outside hydrogen environment, avoids hydrogen infiltration into linear electric motor 402's inside.
In a further specific embodiment, a hydrogen concentration detection probe 8 and a hydrogen concentration detector 9 are further included, the hydrogen concentration detection probe 8 and the hydrogen concentration detector 9 are both disposed in the explosion-proof housing 401, and the hydrogen concentration detection probe 8 is electrically connected with the hydrogen concentration detector 9. So set up, but the inside hydrogen concentration of real-time supervision explosion-proof housing 401 to whether there is hydrogen infiltration to advance inside linear electric motor 402 in real-time supervision, and to the real-time feedback of user, so that the user in time takes measures, avoids the emergence of the explosion accident.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (7)

1. An explosion-proof valve for a hydrogen aerostat, comprising: the valve comprises a valve seat (1), a valve cover (2), a push rod (3), an explosion-proof linear motor (4) and a connecting piece (10);
the valve seat (1) is provided with a vent hole which is communicated along the axial direction of the valve seat, and the valve cover (2) is in sealing and abutting joint with the end face of one end of the valve seat (1);
the push rod (3) is arranged in the vent hole, one end of the push rod (3) extends out of the vent hole and is fixedly connected with the valve cover (2), the other end of the push rod (3) extends out of the vent hole and is fixedly connected with an output shaft of the explosion-proof linear motor (4), and the explosion-proof linear motor (4) is fixedly connected with the valve seat (1) through a connecting piece (10).
2. An explosion-proof valve for a hydrogen aerostat according to claim 1, characterised in that the end face of the valve seat (1) facing the valve cover (2) is provided with a first sealing ring (7) for sealing abutment with the valve cover (2).
3. The explosion-proof valve for the hydrogen aerostat according to claim 2, wherein the top of the valve cover (2) corresponding to the first sealing ring (7) is provided with a tubular blade for sealing and abutting against the first sealing ring (7).
4. The explosion-proof valve for the hydrogen aerostat according to claim 2, further comprising a screw rod (5), wherein one end of the screw rod (5) is in threaded connection with an output shaft of the explosion-proof linear motor (4), and the other end of the screw rod (5) is in threaded connection with the push rod (3).
5. The explosion-proof valve for the hydrogen aerostat according to claim 1, wherein the end of the valve seat (1) facing the valve cover (2) is provided with a mounting pressure plate assembly for press-fitting the balloon (6).
6. An explosion-proof valve for a hydrogen aerostat according to any one of claims 1-5, wherein the explosion-proof linear motor (4) comprises an explosion-proof housing (401) and a linear motor (402);
the linear motor (402) is arranged in the explosion-proof shell (401), an output shaft of the linear motor (402) penetrates out of the explosion-proof shell (401) and is fixedly connected with the push rod, and the output shaft of the linear motor (402) is in sliding seal with the explosion-proof shell (401).
7. The explosion-proof valve for the hydrogen aerostat according to claim 6, further comprising a hydrogen concentration detection probe (8) and a hydrogen concentration detector (9), wherein the hydrogen concentration detection probe (8) and the hydrogen concentration detector (9) are both arranged in the explosion-proof shell (401), and the hydrogen concentration detection probe (8) is electrically connected with the hydrogen concentration detector (9).
CN202210374907.9A 2022-04-11 2022-04-11 Explosion-proof valve for hydrogen aerostat Pending CN114673794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210374907.9A CN114673794A (en) 2022-04-11 2022-04-11 Explosion-proof valve for hydrogen aerostat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210374907.9A CN114673794A (en) 2022-04-11 2022-04-11 Explosion-proof valve for hydrogen aerostat

Publications (1)

Publication Number Publication Date
CN114673794A true CN114673794A (en) 2022-06-28

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CN202210374907.9A Pending CN114673794A (en) 2022-04-11 2022-04-11 Explosion-proof valve for hydrogen aerostat

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008106836A1 (en) * 2007-03-02 2008-09-12 Shenzhen Bak Battery Co., Ltd , Battery mouth-sealing assembly and battery including the same
WO2016085705A1 (en) * 2014-11-29 2016-06-02 Aerojet Rocketdyne, Inc. Valve assembly with electronic control
CN110350705A (en) * 2019-07-05 2019-10-18 张峰铭 The fire-proof motor and its method of a kind of waterproof and dustproof, Anti-burnout
CN209892807U (en) * 2019-03-13 2020-01-03 潍柴动力股份有限公司 Explosion-proof valve of gas machine
CN210240594U (en) * 2019-08-20 2020-04-03 无锡隆盛科技股份有限公司 Poppet valve driven by brushless linear motor
CN211059445U (en) * 2019-12-27 2020-07-21 无锡隆盛科技股份有限公司 Solderless brushless linear motor driven poppet valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008106836A1 (en) * 2007-03-02 2008-09-12 Shenzhen Bak Battery Co., Ltd , Battery mouth-sealing assembly and battery including the same
WO2016085705A1 (en) * 2014-11-29 2016-06-02 Aerojet Rocketdyne, Inc. Valve assembly with electronic control
CN209892807U (en) * 2019-03-13 2020-01-03 潍柴动力股份有限公司 Explosion-proof valve of gas machine
CN110350705A (en) * 2019-07-05 2019-10-18 张峰铭 The fire-proof motor and its method of a kind of waterproof and dustproof, Anti-burnout
CN210240594U (en) * 2019-08-20 2020-04-03 无锡隆盛科技股份有限公司 Poppet valve driven by brushless linear motor
CN211059445U (en) * 2019-12-27 2020-07-21 无锡隆盛科技股份有限公司 Solderless brushless linear motor driven poppet valve

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
卡德尔（CALDER，W.）: "现行市政施工规范实用全书", vol. 1, 中国环境科学出版社, pages: 2946 - 344 *

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Application publication date: 20220628

RJ01 Rejection of invention patent application after publication