CN108709002B - High-speed breather valve - Google Patents

High-speed breather valve Download PDF

Info

Publication number
CN108709002B
CN108709002B CN201810852079.9A CN201810852079A CN108709002B CN 108709002 B CN108709002 B CN 108709002B CN 201810852079 A CN201810852079 A CN 201810852079A CN 108709002 B CN108709002 B CN 108709002B
Authority
CN
China
Prior art keywords
valve
pressure valve
vacuum valve
vacuum
pressure
Prior art date
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.)
Active
Application number
CN201810852079.9A
Other languages
Chinese (zh)
Other versions
CN108709002A (en
Inventor
倪岩土
操守献
倪林超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YUEQING CITY VALVE FACTORY
Original Assignee
YUEQING CITY VALVE FACTORY
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by YUEQING CITY VALVE FACTORY filed Critical YUEQING CITY VALVE FACTORY
Priority to CN201810852079.9A priority Critical patent/CN108709002B/en
Publication of CN108709002A publication Critical patent/CN108709002A/en
Application granted granted Critical
Publication of CN108709002B publication Critical patent/CN108709002B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/22Glazing, e.g. vaccum glazing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention discloses a high-speed ventilation valve which comprises a pressure valve and a vacuum valve, wherein the pressure valve consists of a pressure valve lower body and a pressure valve upper body, a valve rod is arranged in the pressure valve upper body, a bullet-shaped deflector is arranged on the pressure valve upper body at the upper end of the valve rod, the pressure valve lower body is arranged at the lower end of the pressure valve upper body, a first handle is arranged on the pressure valve lower body, the vacuum valve is arranged on the right side of the pressure valve lower body, a first fireproof net is arranged at the joint of the vacuum valve and the pressure valve lower body, a micro switch is arranged on the vacuum valve, a buffer spring is arranged on the micro switch, a permanent battery is arranged at the upper end of the micro switch, a luminous body is connected to the upper end of the permanent battery, and a second handle is arranged on the vacuum valve. When a certain vacuum degree is generated in the cabin, the high-speed ventilation valve can automatically suck the atmosphere into the cabin through the fireproof net cover through the vacuum valve so as to balance the pressure in the cabin, and the arrangement of the first handle and the second handle can be used for ventilation when the cabin is cleaned.

Description

High-speed breather valve
Technical Field
The invention relates to a ventilation valve, in particular to a high-speed ventilation valve.
Background
Cargo tanks are tanks that are loaded with cargo oil on a ship (typically a tanker). The cargo oil tank can have negative pressure and overpressure, and the overpressure is caused by the fact that gas in the cargo oil tank cannot be released in time or the space is compressed due to the fact that the oil tank is too full; the negative pressure is that the liquid in the cabin is discharged, and meanwhile, the inert gas, the cabin gas or the air cannot enter the oil cabin, so that the oil cabin has a structure with excessively low cabin pressure. The cargo oil tank is provided with a cargo oil sweeping system and a cargo oil tank ventilation system according to requirements. The ventilation valve is formed into a sealed assembly by injection molding Pu Wei eptfe film, ultrasonic welding, or the like. The air permeable valve mainly comprises a threaded type air permeable valve, a press-in type air permeable valve, a buckle type air permeable valve, a twist buckle type air permeable valve and the like.
If the pressure and positive pressure generated by temperature change, oil filling and other reasons in the cargo oil tank are not discharged in time, the ship body can be seriously deformed.
Disclosure of Invention
The present invention is directed to a high-speed ventilation valve, which solves the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a high-speed breather valve, includes pressure valve and vacuum valve, the pressure valve comprises pressure valve lower part of the body and pressure valve upper part of the body, and the valve rod is installed to pressure valve upper part of the body internally mounted in the pressure valve upper part of the body, installs bullet formula fluid director on the pressure valve upper part of the body of valve rod upper end, and the pressure valve lower part of the body is installed on the pressure valve lower part of the body and is installed first handle, the vacuum valve is installed on pressure valve lower part of the body right side, and the vacuum valve is equipped with first flame retardant screen with the junction of pressure valve lower part of the body, installs micro-switch on the vacuum valve, installs buffer spring on the micro-switch, and the permanent battery is installed to the micro-switch upper end, and the permanent battery upper end is connected with the luminous body, installs the second handle on the vacuum valve, and the second flame retardant screen gland is installed to the pressure valve lower part, and the hand wheel ejector pin is installed to the vacuum valve lower extreme, and the hand wheel upper end alternates through second flame retardant screen and flame retardant screen gland.
As a further scheme of the invention: the inside balancing weight that is equipped with of pressure valve upper body is equipped with the pressure valve disc on the pressure valve upper body of balancing weight lower extreme, is equipped with the pressure valve disk seat on the pressure valve upper body of pressure valve disc lower extreme, and the left side lower extreme of pressure valve upper body is equipped with the drainage mouth.
As still further aspects of the invention: the bullet-shaped deflector and the pressure valve upper body are provided with waterproof rings, and the right side of the joint of the bullet-shaped deflector and the pressure valve upper body is provided with an air outlet.
As still further aspects of the invention: the pressure valve is characterized in that a lifting rod is arranged in the lower body of the pressure valve, the left end of the lifting rod is fixedly connected to the first handle, and a lifting eccentric wheel is fixed on the lifting rod.
As still further aspects of the invention: the pressure valve is capable of regulating a positive pressure value to be less than 12Pa.
As still further aspects of the invention: the top of the vacuum valve is provided with a vacuum valve cover, the bottom of the vacuum valve is provided with a vacuum valve seat, the vacuum valve at the upper end of the vacuum valve seat is provided with a vacuum valve disc, and the vacuum valve at the upper end of the vacuum valve disc is provided with a vacuum valve assembly.
As still further aspects of the invention: the outer cover of the luminous body is provided with a glass cover, a steel wire mesh is arranged outside the glass cover, and the steel wire mesh is fixed on the vacuum valve through bolts.
As still further aspects of the invention: the fireproof net gland is fixed on the vacuum valve through the cooperation of the threaded rod and the nut.
As still further aspects of the invention: the negative pressure setting adjustable by the vacuum valve is not more than 3.5Pa.
Compared with the prior art, the invention has the beneficial effects that:
when a certain vacuum degree is generated in the cabin, the high-speed ventilation valve can automatically suck the atmosphere into the cabin through the fireproof net cover through the vacuum valve so as to balance the pressure in the cabin, and the arrangement of the first handle and the second handle can be used for ventilation when the cabin is cleaned.
Drawings
Fig. 1 is a schematic view of a high-speed ventilation valve.
FIG. 2 is a schematic view of a partial cross-sectional structure of a pressure valve lower body at a first handle in a high-speed breather valve.
Wherein: waterproof ring 1, bullet-shaped deflector 2, gas outlet 3, valve rod 4, balancing weight 5, pressure valve disk 6, pressure valve disk seat 7, water discharge nozzle 8, pressure valve lower body 9, pressure valve upper body 10, first fire-proof net 11, steel wire net 12, glass cover 13, luminous body 14, permanent battery 15, vacuum valve cover 16, buffer spring 17, micro switch 18, vacuum valve 19, vacuum valve assembly 20, vacuum valve disk 21, vacuum valve disk seat 22, second fire-proof net 23, fire-proof net gland 24, hand wheel ejector rod 25, lifting rod 26, lifting eccentric wheel 27, first handle 28.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the specific embodiments.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
Example 1
Referring to fig. 1 and 2, a high-speed ventilation valve comprises a pressure valve and a vacuum valve 19, wherein the pressure valve consists of a pressure valve lower body 9 and a pressure valve upper body 10, a valve rod 4 is arranged in the pressure valve upper body 10, a bullet-shaped deflector 2 is arranged on the pressure valve upper body 10 at the upper end of the valve rod 4, a waterproof ring 1 is arranged on the bullet-shaped deflector 2 and the pressure valve upper body 10, an air outlet 3 is arranged on the right side of the joint of the bullet-shaped deflector 2 and the pressure valve upper body 10, the pressure valve lower body 9 is arranged at the lower end of the pressure valve upper body 10, a lifting rod 26 is arranged in the pressure valve lower body 9, the left end of the lifting rod 26 is fixedly connected to a first handle 28, a lifting eccentric wheel 27 is fixed on the lifting rod 26, the positive pressure value adjustable by the pressure valve is set to be less than 12Pa, the vacuum valve 19 is arranged on the right side of the pressure valve lower body 9, the vacuum valve 19 is equipped with first flame retardant screen 11 with the lower body 9 junction of pressure valve, install micro-switch 18 on the vacuum valve 19, install buffer spring 17 on the micro-switch 18, permanent battery 15 is installed to micro-switch 18 upper end, permanent battery 15 upper end is connected with luminous body 14, the outside cover of luminous body 14 is equipped with glass cover 13, glass cover 13 externally mounted has wire net 12, wire net 12 passes through the bolt fastening on vacuum valve 19, the second flame retardant screen 23 is installed to vacuum valve 19 lower extreme, the second flame retardant screen 23 lower extreme is fixed with flame retardant screen gland 24, flame retardant screen gland 24 passes through threaded rod and nut cooperation to be fixed on vacuum valve 19, hand wheel ejector pin 25 is installed to vacuum valve 19 lower extreme, the interlude is passed through second flame retardant screen 23 and flame retardant screen gland 24 on the upper end of hand wheel ejector pin 25, the negative pressure setting that vacuum valve 19 can adjust is not more than 3.5Pa.
Further, a balancing weight 5 is arranged in the pressure valve upper body 10, a pressure valve disc 6 is arranged on the pressure valve upper body 10 at the lower end of the balancing weight 5, a pressure valve seat 7 is arranged on the pressure valve upper body 10 at the lower end of the pressure valve disc 6, and a drain nozzle 8 is arranged at the lower end of the left side of the pressure valve upper body 10.
Further, a vacuum valve cover 16 is installed at the top of the vacuum valve 19, a vacuum valve seat 22 is installed at the bottom of the vacuum valve 19, a vacuum valve disk 21 is installed on the vacuum valve 19 at the upper end of the vacuum valve seat 22, and a vacuum valve assembly 20 is installed on the vacuum valve 19 at the upper end of the vacuum valve disk 21.
Example 2
Referring to fig. 1 and 2, a high-speed ventilation valve comprises a pressure valve and a vacuum valve 19, wherein the pressure valve is composed of a pressure valve lower body 9 and a pressure valve upper body 10, a valve rod 4 is arranged in the pressure valve upper body 10, a bullet-shaped deflector 2 is arranged on the pressure valve upper body 10 at the upper end of the valve rod 4, a waterproof ring 1 is arranged on the bullet-shaped deflector 2 and the pressure valve upper body 10, an air outlet 3 is arranged on the right side of the joint of the bullet-shaped deflector 2 and the pressure valve upper body 10, the pressure valve lower body 9 is arranged at the lower end of the pressure valve upper body 10, a first handle 28 is arranged on the pressure valve lower body 9, a lifting rod 26 is arranged in the pressure valve lower body 9, the left end of the lifting rod 26 is fixedly connected to the first handle 28, a lifting eccentric wheel 27 is fixed on the lifting rod 26, the positive pressure value which can be adjusted by the pressure valve is less than 12Pa, the vacuum valve 19 is arranged on the right side of the pressure valve lower body 9, the vacuum valve 19 is equipped with first flame retardant screen 11 with the lower body 9 junction of pressure valve, install micro-switch 18 on the vacuum valve 19, install buffer spring 17 on the micro-switch 18, permanent battery 15 is installed to micro-switch 18 upper end, permanent battery 15 upper end is connected with luminous body 14, the outside cover of luminous body 14 is equipped with glass cover 13, glass cover 13 externally mounted has wire net 12, wire net 12 passes through the bolt fastening on vacuum valve 19, install the second handle on the vacuum valve 19, the second flame retardant screen 23 is installed to vacuum valve 19 lower extreme, the second flame retardant screen 23 lower extreme is fixed with flame retardant screen gland 24, flame retardant screen gland 24 passes through threaded rod and nut cooperation to be fixed on vacuum valve 19, hand wheel ejector pin 25 is installed to vacuum valve 19 lower extreme, hand wheel ejector pin 25 upper end alternates through second flame retardant screen 23 and flame retardant screen gland 24, vacuum valve 19 adjustable negative pressure sets up to be no more than 3.5Pa.
Further, a balancing weight 5 is arranged in the pressure valve upper body 10, a pressure valve disc 6 is arranged on the pressure valve upper body 10 at the lower end of the balancing weight 5, a pressure valve seat 7 is arranged on the pressure valve upper body 10 at the lower end of the pressure valve disc 6, and a drain nozzle 8 is arranged at the lower end of the left side of the pressure valve upper body 10.
Further, a vacuum valve cover 16 is installed at the top of the vacuum valve 19, a vacuum valve seat 22 is installed at the bottom of the vacuum valve 19, a vacuum valve disk 21 is installed on the vacuum valve 19 at the upper end of the vacuum valve seat 22, and a vacuum valve assembly 20 is installed on the vacuum valve 19 at the upper end of the vacuum valve disk 21.
The working principle of the invention is as follows: when the positive pressure in the cabin is greater than 12Pa (set value), the pressure valve is automatically opened to release the pressure in the cabin, the vacuum valve 19 is also opened instantaneously to make up the required negative pressure, the vacuum valve is also opened instantaneously, the upper ejector rod of the vacuum valve 19 triggers the micro switch 18 to switch on the permanent battery 15, the illuminant 14 flashes, and when the oil tanker discharges oil and removes ballast, the valve can automatically suck the atmosphere into the cabin through the fireproof net cover safely through the vacuum valve to balance the pressure in the cabin in other working processes of discharging oil and removing ballast, and the arrangement of the first handle 28 and the second handle can be used for cleaning the cabin to breathe.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (5)

1. The utility model provides a high-speed breather valve, including pressure valve and vacuum valve (19), a serial communication port, the pressure valve comprises pressure valve lower part body (9) and pressure valve upper part body (10), pressure valve upper part body (10) internally mounted has valve rod (4), install bullet type deflector (2) on pressure valve upper part body (10) of valve rod (4) upper end, pressure valve lower part body (9) are installed in pressure valve upper part body (10) lower extreme, install first handle (28) on pressure valve lower part body (9), vacuum valve (19) are installed on pressure valve lower part body (9) right side, the junction of vacuum valve (19) and pressure valve lower part body (9) is equipped with first flame retardant screen (11), install micro switch (18) on vacuum valve (19), install buffer spring (17) on micro switch (18) upper end and install permanent battery (15), the upper end of permanent battery (15) is connected with luminous body (14), install second handle on vacuum valve (19), vacuum valve (19) are installed on pressure valve lower part (9) right side, vacuum valve (19) and vacuum valve lower part (23) are equipped with first flame retardant screen (23), vacuum valve lower part (23) are installed to be fixed, vacuum valve lower part (23), the upper end of the hand wheel ejector rod (25) is inserted through a second fireproof net (23) and a fireproof net gland (24); the utility model discloses a vacuum valve cover, vacuum valve cover (16) are installed at vacuum valve (19) top, vacuum valve disk (22) are installed to vacuum valve (19) bottom of vacuum valve (19), install vacuum valve disk (21) on vacuum valve (19) of vacuum valve disk (21) upper end, install vacuum valve and join in marriage (20) on vacuum valve (19), but buffering spring (17) and install the valve body guiding axle contact setting of vacuum valve joining in marriage (20), luminous body (14) set up in vacuum valve (19) outside and cover are equipped with glass cover (13), glass cover (13) externally mounted has wire net (12), and wire net (12) are fixed on vacuum valve (19) through the bolt.
2. The high-speed ventilation valve according to claim 1, wherein a balancing weight (5) is arranged in the upper pressure valve body (10), a pressure valve disc (6) is arranged on the upper pressure valve body (10) at the lower end of the balancing weight (5), a pressure valve seat (7) is arranged on the upper pressure valve body (10) at the lower end of the pressure valve disc (6), and a drain nozzle (8) is arranged at the lower left end of the upper pressure valve body (10).
3. The high-speed ventilation valve according to claim 1, wherein the bullet-shaped deflector (2) and the upper pressure valve body (10) are provided with waterproof rings (1), and the right side of the joint of the bullet-shaped deflector (2) and the upper pressure valve body (10) is provided with an air outlet (3).
4. The high-speed ventilation valve according to claim 1, wherein a lifting rod (26) is arranged in the pressure valve lower body (9), the left end of the lifting rod (26) is fixedly connected to the first handle (28), and a lifting eccentric wheel (27) is fixed on the lifting rod (26).
5. A high speed ventilation valve according to claim 1, characterized in that the fireproof mesh gland (24) is fixed to the vacuum valve (19) by means of a threaded rod and nut fit.
CN201810852079.9A 2018-07-30 2018-07-30 High-speed breather valve Active CN108709002B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810852079.9A CN108709002B (en) 2018-07-30 2018-07-30 High-speed breather valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810852079.9A CN108709002B (en) 2018-07-30 2018-07-30 High-speed breather valve

Publications (2)

Publication Number Publication Date
CN108709002A CN108709002A (en) 2018-10-26
CN108709002B true CN108709002B (en) 2023-09-05

Family

ID=63875432

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810852079.9A Active CN108709002B (en) 2018-07-30 2018-07-30 High-speed breather valve

Country Status (1)

Country Link
CN (1) CN108709002B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109253292B (en) * 2018-11-28 2023-11-03 大连英蕴科技有限公司 Air-permeable valve for ship and air pressure balancing method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB217530A (en) * 1924-02-07 1924-06-19 Frederick Mortimer Timpson Improved construction of combined pressure and vacuum relief valves
CN2881255Y (en) * 2006-01-26 2007-03-21 泰兴市蓝捷船舶安全设备有限公司 High speed ventilation valve for ship
CN2888251Y (en) * 2006-04-06 2007-04-11 上海申建冶金机电技术有限公司 Full-closed safety explosion-proof miner's lamp
CN200943745Y (en) * 2006-08-30 2007-09-05 上海亨远船舶设备公司 High speed gas valve for pressure and vacuum
CN102597585A (en) * 2009-07-27 2012-07-18 默沙东公司 Diaphragm valve with improved sealing performance and leak detection
CN203516885U (en) * 2013-09-27 2014-04-02 苏州赛华仪控股份有限公司 Flow-limiting decompression valve
CN204852377U (en) * 2015-08-19 2015-12-09 国工阀门有限公司 Fire control signal butterfly valve
CN205350472U (en) * 2015-12-31 2016-06-29 大连顺天兴达特种阀门有限公司 High -speed breather valve is used to oil hold
CN205639744U (en) * 2016-05-10 2016-10-12 乐清市阀门厂 Formula that opens ice gravity oil hold pair breather valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10555678B2 (en) * 2013-08-05 2020-02-11 Masimo Corporation Blood pressure monitor with valve-chamber assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB217530A (en) * 1924-02-07 1924-06-19 Frederick Mortimer Timpson Improved construction of combined pressure and vacuum relief valves
CN2881255Y (en) * 2006-01-26 2007-03-21 泰兴市蓝捷船舶安全设备有限公司 High speed ventilation valve for ship
CN2888251Y (en) * 2006-04-06 2007-04-11 上海申建冶金机电技术有限公司 Full-closed safety explosion-proof miner's lamp
CN200943745Y (en) * 2006-08-30 2007-09-05 上海亨远船舶设备公司 High speed gas valve for pressure and vacuum
CN102597585A (en) * 2009-07-27 2012-07-18 默沙东公司 Diaphragm valve with improved sealing performance and leak detection
CN203516885U (en) * 2013-09-27 2014-04-02 苏州赛华仪控股份有限公司 Flow-limiting decompression valve
CN204852377U (en) * 2015-08-19 2015-12-09 国工阀门有限公司 Fire control signal butterfly valve
CN205350472U (en) * 2015-12-31 2016-06-29 大连顺天兴达特种阀门有限公司 High -speed breather valve is used to oil hold
CN205639744U (en) * 2016-05-10 2016-10-12 乐清市阀门厂 Formula that opens ice gravity oil hold pair breather valve

Also Published As

Publication number Publication date
CN108709002A (en) 2018-10-26

Similar Documents

Publication Publication Date Title
CN108709002B (en) High-speed breather valve
US3889705A (en) Hydraulic system reservoir having separate oil and air-oil chambers
CN107240483A (en) Transformer breather
CN208104517U (en) A kind of explosion-proof titration outfit of metal material chemical heat treatment furnace
CN209758103U (en) Oil gas discharging device in oil groove for oil gas storage and transportation
CN216922203U (en) Negative pressure adjustable full-automatic water drainage device
CN213392563U (en) Oil-gas separator
CN210660204U (en) Water-slag separator for coal mine gas extraction pipeline
US4131438A (en) Degasser and liquid seal reservoir
CN208859309U (en) Pesticide producing air accumulator
CN112483696A (en) Positive and negative pressure breathing device for fire fighting truck
CN209366913U (en) A kind of nitrogen suck-back device
CN207670184U (en) A kind of fuel tank pipeline structure
CN207333869U (en) A kind of composite exhaust valve
CN213871269U (en) Positive and negative pressure breathing device for fire fighting truck
CN215489078U (en) Air compressor machine, air bottle drainage collection device
CN218376796U (en) Oil mist exhaust device for vacuum pump
CN216937515U (en) Cleaning device for fuel storage container
CN105381666B (en) A kind of energy-saving air clarifier
CN220646028U (en) Automatic water draining device for gas drainage pipeline
CN207986870U (en) A kind of gas-removing filter
CN213870416U (en) Air bleeder of pumping chamber
CN215568340U (en) Breather valve device for filter
CN215621376U (en) Anti-suction fuel tank of motor vehicle
CN207168849U (en) Fire emergency supplies gas-liquid separation device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant