CN108006264B - The three disconnected pneumatic amplifiers for protecting bit function can be achieved - Google Patents
The three disconnected pneumatic amplifiers for protecting bit function can be achieved Download PDFInfo
- Publication number
- CN108006264B CN108006264B CN201711487107.3A CN201711487107A CN108006264B CN 108006264 B CN108006264 B CN 108006264B CN 201711487107 A CN201711487107 A CN 201711487107A CN 108006264 B CN108006264 B CN 108006264B
- Authority
- CN
- China
- Prior art keywords
- amplifier
- chamber
- enlarged cavity
- guide
- gas
- 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
Links
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 241000826860 Trapezium Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
-
- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention discloses a kind of pneumatic amplifiers that three disconnected guarantor's bit functions can be achieved, including port, constant pressure chamber, the first amplifier, the second amplifier, third amplifier, the 4th amplifier, nozzle, and the nozzle outlet pressure control device close to nozzle；By adjusting the distance between nozzle outlet pressure control device and nozzle, and then the channel opening and closing state of gas outlet and air inlet and exhaust outlet is controlled, realization three is disconnected to protect bit function.Structure is simple, and not needing the components such as additional power loss comparator, solenoid valve and air lock can be achieved with three disconnected guarantor's bit functions, reduces cost, simplifies installation.
Description
Technical field
The invention belongs to pneumatic amplifier technical field more particularly to a kind of pneumatic amplifications that three disconnected guarantor's bit functions can be achieved
Device.
Background technique
Intelligent valve positioner with pneumatic amplifier itself cannot achieve power-off, break signal, die that this three disconnected protects position at present
Function, scene have when demand can only additional power loss comparator, solenoid valve and air lock assist to complete this function.
The prior art is connected between gas outlet and exhaust outlet when instrument is stopped the supple of gas or steam or is had a power failure, and gas in executing agency is arranged
Sky, executing agency can return to initial position, additional attachment come realize three it is disconnected protect positions, increase the complexity and user cost of system.
Summary of the invention
In order to solve existing valve positioner system complex in the disconnected guarantor's bit function of realization three, cost of implementation is higher to be asked
Topic, the present invention provide a kind of pneumatic amplifiers that three disconnected guarantor's bit functions can be achieved.
To solve the above-mentioned problems, its technical solution is that:
A kind of pneumatic amplifiers that three disconnected guarantor's bit functions can be achieved, including port, constant pressure chamber, the first amplifier, second
Amplifier, third amplifier, the 4th amplifier, nozzle, and the nozzle outlet pressure control device close to nozzle；
Guide's gas chamber is equipped in first amplifier, the second amplifier, third amplifier and the 4th amplifier and is put
Big chamber, is equipped with inlet chamber in first amplifier and third amplifier, in second amplifier and the 4th amplifier
Equipped with discharge chamber；
The port is connected to so that air inlet is introduced the constant pressure chamber with the input port of constant pressure chamber, the delivery outlet of constant pressure chamber,
The elder generation of guide's gas chamber of first amplifier, guide's gas chamber of the second amplifier, guide's gas chamber of third amplifier, the 4th amplifier
Air guide room and nozzle, which are sequentially communicated, constitutes guide's gas circuit；
The port is connected to the inlet chamber of first amplifier, and first amplifier and the second amplifier are put
Big chamber connection, the enlarged cavity of second amplifier are equipped with the gas outlet OUT1, and the discharge chamber of second amplifier is equipped with A
Exhaust outlet；
The port is connected to the inlet chamber of the third amplifier, and the third amplifier and the 4th amplifier are put
Big chamber connection, the enlarged cavity of the 4th amplifier are equipped with the gas outlet OUT2, and the discharge chamber of the 4th amplifier is equipped with B
Exhaust outlet；
When pressure is the first pressure in guide's gas circuit, channel is beaten between the enlarged cavity and inlet chamber of the first amplifier
It opens, channel is closed between the enlarged cavity and discharge chamber of the second amplifier, channel between the enlarged cavity and inlet chamber of third amplifier
It closes, the channel between the enlarged cavity and discharge chamber of the 4th amplifier is opened；Access between port and OUT1 is opened, OUT1
With the path blockade of exhaust outlet closed, path blockade between port and OUT2, the access between OUT2 and exhaust outlet is opened；
When pressure is the second pressure in guide's gas circuit, channel between the enlarged cavity and inlet chamber of first amplifier
It closes, channel is opened between the enlarged cavity and discharge chamber of second amplifier, the enlarged cavity of the third amplifier and air inlet
Channel is opened between chamber, and the channel between the enlarged cavity and discharge chamber of the 4th amplifier is closed；Between port and OUT1
Path blockade, access between OUT1 and exhaust outlet opens, and the access before port and OUT2 is opened, OUT2 and exhaust outlet
Between path blockade；
When pressure is third pressure in guide's gas circuit, enlarged cavity in first amplifier and the second amplifier with
Channel is turned off between inlet chamber, channel Jun Guan between the enlarged cavity and discharge chamber in the third amplifier and the 4th amplifier
It closes.
The three disconnected pneumatic amplifiers for protecting bit function, first amplifier, the second amplifier, third can be achieved in above-mentioned
Amplifier and the 4th amplifier include piston, spool and push rod, and the piston is set in the enlarged cavity, described piston one end
It is fixed on guide's gas chamber inner wall by the first spring, the other end, spool, the push rod of piston are fixedly connected sequentially；
Push rod in first amplifier and third amplifier is fixed on the air inlet cavity wall, institute by second spring
The push rod stated in the second amplifier and the 4th amplifier is fixed on the exhaust cavity wall by third spring；
Between first amplifier and the enlarged cavity and inlet chamber of third amplifier and second amplifier and
Packed baffle is all provided between the enlarged cavity and discharge chamber of four amplifiers, the baffle, which is equipped with, places opening for the spool
Mouthful, the spool is the structure that sectional area is gradually increased；
In first amplifier and the 4th amplifier, described lesser one end in spool section is towards guide's gas chamber；
In second amplifier and third amplifier, described biggish one end in spool section is towards guide's gas chamber；
The three disconnected pneumatic amplifiers for protecting bit function can be achieved in above-mentioned, the nozzle outlet pressure control device includes leaning on
The baffle of nearly jet hole and the coil block for driving the baffle movement.
The present invention solves what pneumatic amplifier was closed between delivery outlet and air intake-exhaust in the case where power loss and mistake gas
Problem.Structure is simple, and not needing the components such as additional power loss comparator, solenoid valve and air lock can be achieved with power-off, break signal, breaks
This three disconnected guarantor's bit function of gas.Reduce user realization three is disconnected protect bit function when cost, simplify installation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the three disconnected pneumatic amplifiers for protecting bit function can be achieved in the present invention.
Fig. 2 is the positional relationship and structural schematic diagram of nozzle and coil block involved in the present invention.
Fig. 3 be baffle close to nozzle when gas outlet and air inlet and exhaust outlet channel opening and closing status diagram.
Fig. 4 be baffle far from nozzle when gas outlet and air inlet and exhaust outlet channel opening and closing status diagram.
Fig. 5 is the channel opening and closing status diagram of gas outlet and air inlet and exhaust outlet when coil is not charged.
Fig. 6 is the sectional view that the three disconnected pneumatic amplifiers for protecting bit function can be achieved in the present invention.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figures 1 to 6, a kind of that the three disconnected pneumatic amplifiers for protecting bit function, including the detection of constant pressure cavity pressure can be achieved
Mouth 1, port 4, constant pressure chamber 6, the first amplifier 2, the second amplifier 3, third amplifier 9, the 4th amplifier 8, nozzle 10, with
And the nozzle outlet pressure control device 11 close to nozzle 10.
The nozzle outlet pressure control device 11 includes the line close to the baffle of nozzle 10 and the driving baffle movement
Coil assembly.Wherein, it can control baffle close to or far from nozzle 10 after coil block is powered.
Guide's gas chamber is equipped in first amplifier 2, the second amplifier 3, third amplifier 9 and the 4th amplifier 8
12 and enlarged cavity 13, inlet chamber 14, second amplifier 3 and are equipped in first amplifier 2 and third amplifier 9
Discharge chamber 15 is equipped in four amplifiers 8.
The port 4 is connected to so that air inlet is introduced the constant pressure chamber 6, the output of constant pressure chamber 6 with the input port of constant pressure chamber 6
Mouth, guide's gas chamber of the first amplifier 2, guide's gas chamber of the second amplifier 3, guide's gas chamber of third amplifier 9, the 4th amplification
The guide's gas chamber and nozzle 10 of device 8, which are sequentially communicated, constitutes guide's gas circuit.
The port 4 is connected to the inlet chamber of first amplifier 2, first amplifier 2 and the second amplifier 3
Enlarged cavity connection, the enlarged cavity of second amplifier 3 is equipped with the gas outlet OUT1 5, the discharge chamber of second amplifier
It is equipped with A exhaust outlet 16.
The port 4 is connected to the inlet chamber of the third amplifier 9, the third amplifier 9 and the 4th amplifier 8
Enlarged cavity connection, the enlarged cavity of the 4th amplifier 8 is equipped with the gas outlet OUT2 17, the discharge chamber of the 4th amplifier
It is equipped with B exhaust outlet 18.
In addition, the gas outlet OUT1 5 is also connected to OUT1 outlet pressure detection mouth 1, the detection of OUT1 outlet pressure by pipeline
7 surface of shell of apparatus of the present invention is arranged in mouth 1.
As shown in figure 3, promoting baffle close to nozzle, due to by jet hole baffle when adding forward current to coil block
Limitation, pressure gradually rises in guide's gas circuit, when pressure is the first pressure in air guide road in the ban, the amplification of the first amplifier 2
Channel is opened between chamber and inlet chamber, and channel is closed between the enlarged cavity and discharge chamber of the second amplifier 3, third amplifier 9
Channel is closed between enlarged cavity and inlet chamber, and the channel between the enlarged cavity and discharge chamber of the 4th amplifier 8 is opened；Port 4
Access between the gas outlet OUT1 5 is opened, the path blockade of the gas outlet OUT1 5 and A exhaust outlet 16 closed, port 4 and
Path blockade between the gas outlet OUT2 17, the access between the gas outlet OUT2 17 and B exhaust outlet 18 are opened, and realize that OUT1 goes out
Gas, OUT2 exhaust.
As shown in figure 4, baffle is far from nozzle, and jet hole goes out atmidometer and reduces, in pilot chamber when adding reverse current to coil
Pressure decline, when pressure is the second pressure in air guide road in the ban, channel between the enlarged cavity and inlet chamber of first amplifier 2
Close, between the enlarged cavity and discharge chamber of second amplifier 3 channel open, the enlarged cavity of the third amplifier 9 with into
Channel is opened between air cavity, and the channel between the enlarged cavity and discharge chamber of the 4th amplifier 8 is closed；Port 4 and OUT1
Path blockade between gas outlet 5, the access between the gas outlet OUT1 5 and A exhaust outlet 16 are opened, port 4 and OUT2 outlet
Access between mouth 17 is opened, the path blockade between the gas outlet OUT2 17 and B exhaust outlet 18, thus realize OUT2 outlet,
OUT1 exhaust.
As shown in figure 5, baffle and nozzle keep a suitable distance, and pressure is in air guide road in the ban when coil is not powered
When third pressure, channel is turned off between the enlarged cavity and inlet chamber in first amplifier 2 and the second amplifier 3, described
Channel is turned off between enlarged cavity and discharge chamber in third amplifier 9 and the 4th amplifier 8.To make the gas in executing agency
Body does not go out also not arrange, and valve is made to keep current location, realizes that power-off break signal protects position.
Wherein, the first pressure value is 0.2Mpa, and the second pressure value is 0.05Mpa, and third pressure value is 0.1Mpa.
As shown in fig. 6, leading between first amplifier 2 and the enlarged cavity and inlet chamber of third amplifier 9 to realize
The opening and closing in road, channel beats on and off between second amplifier 3 and the enlarged cavity and discharge chamber of the 4th amplifier 8
It closes, following technical proposals can be used:
First amplifier 2, the second amplifier 3, third amplifier 9 and the 4th amplifier 8 include piston 19,20 and of spool
Push rod 21, the piston 19 are set in the enlarged cavity, and the guide is fixed on by the first spring 22 in described 19 one end of piston
12 inner wall of gas chamber, the other end, spool 20, the push rod 21 of piston 19 are fixedly connected sequentially.
Push rod in first amplifier 2 and third amplifier 9 is fixed on the inlet chamber 14 by second spring 23
Inner wall, the push rod in second amplifier 3 and the 4th amplifier 8 are fixed in the discharge chamber 15 by third spring 24
Wall.Between first amplifier 2 and the enlarged cavity and inlet chamber of third amplifier 9 and second amplifier 3 and the 4th
Seal assembly 25 is equipped between the enlarged cavity and discharge chamber of amplifier 8, the seal assembly 25, which is equipped with, places the spool
Opening, the spool 20 is the structure that is gradually increased of sectional area.In first amplifier 2 and the 4th amplifier 8, the valve
The lesser one end in 20 section of core is towards guide's gas chamber；In second amplifier 3 and third amplifier 9, the spool 20
The biggish one end in section is towards guide's gas chamber.Spool 20 under the action of push rod, piston, spring and air pressure on move down
Dynamic, channel is on and off between realization enlarged cavity and intake and exhaust chamber.
Wherein, spool can be triangular structure or trapezium structure or cone.Seal assembly 25 can be in two chambers
The baffle arrangement of setting between room.
Amplifier operation pressure limit is 0.14-0.6MPa, as long as bleed pressure is greater than 0.14Mpa after dying, baffle
At not powered position, for 4 valve bodies all in closed state, realization, which is died, protects position.
For spool in design, exhaust velocity is greater than intake velocity.When valve is in guarantor's position state, the pressure of two delivery outlets
Close to 0, as long as bleed pressure is not less than 0.14MPa, it is able to achieve guarantor's bit function.
Claims (3)
1. a kind of can be achieved the three disconnected pneumatic amplifiers for protecting bit functions, which is characterized in that including port (4), constant pressure chamber (6),
First amplifier (2), the second amplifier (3), third amplifier (9), the 4th amplifier (8), nozzle (10), and close to nozzle
(10) nozzle outlet pressure control device (11)；
Guide is equipped in first amplifier (2), the second amplifier (3), third amplifier (9) and the 4th amplifier (8)
It is equipped with inlet chamber (14) in gas chamber (12) and enlarged cavity (13), first amplifier (2) and third amplifier (9), it is described
Discharge chamber (15) are equipped in second amplifier (3) and the 4th amplifier (8)；
The port (4) is connected to so that air inlet is introduced the constant pressure chamber (6) with the input port of constant pressure chamber (6), constant pressure chamber (6)
The first air guide of delivery outlet, guide's gas chamber of the first amplifier (2), guide's gas chamber of the second amplifier (3), third amplifier (9)
Room, guide's gas chamber of the 4th amplifier (8) and nozzle (10), which are sequentially communicated, constitutes guide's gas circuit；
The port (4) is connected to the inlet chamber of first amplifier (2), first amplifier (2) and the second amplification
The enlarged cavity of device (3) is connected to, and the enlarged cavity of second amplifier (3) is equipped with the gas outlet OUT1 (5), second amplifier
(3) discharge chamber is equipped with A exhaust outlet (16)；
The port (4) is connected to the inlet chamber of the third amplifier (9), the third amplifier (9) and the 4th amplification
The enlarged cavity of device (8) is connected to, and the enlarged cavity of the 4th amplifier (8) is equipped with the gas outlet OUT2 (17), the 4th amplification
The discharge chamber of device (8) is equipped with B exhaust outlet (18)；
When pressure is the first pressure in guide's gas circuit, channel is opened between the enlarged cavity and inlet chamber of the first amplifier (2),
Channel is closed between the enlarged cavity and discharge chamber of second amplifier (3), is led between the enlarged cavity and inlet chamber of third amplifier (9)
Road is closed, and the channel between the enlarged cavity and discharge chamber of the 4th amplifier (8) is opened；
When pressure is the second pressure in guide's gas circuit, channel between the enlarged cavity and inlet chamber of first amplifier (2)
It closes, channel is opened between the enlarged cavity and discharge chamber of second amplifier (3), the enlarged cavity of the third amplifier (9)
Channel is opened between inlet chamber, and the channel between the enlarged cavity and discharge chamber of the 4th amplifier (8) is closed；
Enlarged cavity when pressure is third pressure in guide's gas circuit, in first amplifier (2) and the second amplifier (3)
Channel is turned off between inlet chamber, between the enlarged cavity and discharge chamber in the third amplifier (9) and the 4th amplifier (8)
Channel is turned off.
2. according to claim 1 can be achieved the three disconnected pneumatic amplifiers for protecting bit function, which is characterized in that described first puts
Big device (2), the second amplifier (3), third amplifier (9) and the 4th amplifier (8) include piston (19), spool (20) and push away
Bar (21), the piston (19) are set in the enlarged cavity (13), and described piston (19) one end is fixed by the first spring (22)
In guide's gas chamber (12) inner wall, the other end, spool (20), the push rod (21) of piston (19) are fixedly connected sequentially；
Push rod in first amplifier (2) and third amplifier (9) is fixed on the inlet chamber by second spring (23)
(14) inner wall, the push rod in second amplifier (3) and the 4th amplifier (8) are fixed on the row by third spring (24)
Air cavity (15) inner wall；
Between first amplifier (2) and the enlarged cavity and inlet chamber of third amplifier (9) and second amplifier
(3) it is equipped with seal assembly (25) between the enlarged cavity and discharge chamber of the 4th amplifier (8), is set on the seal assembly (25)
There is the opening for placing the spool (20), the spool (20) is the structure that sectional area is gradually increased；
In first amplifier (2) and the 4th amplifier (8), the lesser one end in spool (20) section is towards the guide
Gas chamber (12)；
In second amplifier (3) and third amplifier (9), the biggish one end in spool (20) section is towards the guide
Gas chamber (12).
3. according to claim 1 can be achieved the three disconnected pneumatic amplifiers for protecting bit function, which is characterized in that the nozzle goes out
Air pressure force control device (11) includes the coil block close to the baffle of jet hole and the driving baffle movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487107.3A CN108006264B (en) | 2017-12-29 | 2017-12-29 | The three disconnected pneumatic amplifiers for protecting bit function can be achieved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487107.3A CN108006264B (en) | 2017-12-29 | 2017-12-29 | The three disconnected pneumatic amplifiers for protecting bit function can be achieved |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108006264A CN108006264A (en) | 2018-05-08 |
| CN108006264B true CN108006264B (en) | 2019-09-10 |
Family
ID=62049211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711487107.3A Active CN108006264B (en) | 2017-12-29 | 2017-12-29 | The three disconnected pneumatic amplifiers for protecting bit function can be achieved |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108006264B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043546Y (en) * | 2007-05-29 | 2008-04-02 | 天津市太平洋仪表有限公司 | Electric-pneumatic valve locator |
| CN102734509A (en) * | 2011-03-30 | 2012-10-17 | 阿自倍尔株式会社 | Pneumatic amplifier |
| CN105422951A (en) * | 2016-01-05 | 2016-03-23 | 北航温州研究院 | Pneumatic unit device of circular intelligent valve positioner |
| CN206072490U (en) * | 2016-10-08 | 2017-04-05 | 武汉拓优测控科技有限公司 | A kind of flame-proof type intelligent valve positioner of compatible Nozzle flapper valve and piezo electric valve |
| CN206072506U (en) * | 2016-10-08 | 2017-04-05 | 武汉拓优测控科技有限公司 | A kind of flame-proof type intelligent valve positioner |
-
2017
- 2017-12-29 CN CN201711487107.3A patent/CN108006264B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043546Y (en) * | 2007-05-29 | 2008-04-02 | 天津市太平洋仪表有限公司 | Electric-pneumatic valve locator |
| CN102734509A (en) * | 2011-03-30 | 2012-10-17 | 阿自倍尔株式会社 | Pneumatic amplifier |
| CN105422951A (en) * | 2016-01-05 | 2016-03-23 | 北航温州研究院 | Pneumatic unit device of circular intelligent valve positioner |
| CN206072490U (en) * | 2016-10-08 | 2017-04-05 | 武汉拓优测控科技有限公司 | A kind of flame-proof type intelligent valve positioner of compatible Nozzle flapper valve and piezo electric valve |
| CN206072506U (en) * | 2016-10-08 | 2017-04-05 | 武汉拓优测控科技有限公司 | A kind of flame-proof type intelligent valve positioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108006264A (en) | 2018-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105387218B (en) | A kind of gas control guide electromagnetic valve | |
| JP2004502904A (en) | Vacuum generator | |
| JP2014512496A (en) | Poppet valve assembly for controlling pneumatic actuators | |
| CN110388474A (en) | A kind of miniaturization guide electromagnetic valve of quick response | |
| US20160305561A1 (en) | Water filtering device safety valve | |
| CN108006264B (en) | The three disconnected pneumatic amplifiers for protecting bit function can be achieved | |
| CN111963495B (en) | Pneumatic time-delay reversing module | |
| CN109611236A (en) | A kind of pneumatic adjusting adjustable jet of band flexibility larynx lining | |
| CN110394034B (en) | Compressed air purifier and emission control method thereof | |
| CN214698532U (en) | Small valve pilot type sheet-mounted integrated large-flow vacuum generator | |
| CN112032120B (en) | Hierarchical linkage control system with pneumatic time-delay reversing module | |
| CN101963253A (en) | Push-type multifunctional overflow-preventing fuel gas safety valve | |
| CN208565747U (en) | Integrated magnet valves | |
| CN115013561A (en) | Electromagnetic valve with safety mode | |
| TWI759718B (en) | Pneumatic directional control valve | |
| BR112013010732B1 (en) | internal combustion engine | |
| CN208997436U (en) | A kind of bottom connects formula solenoid valve | |
| CN207080662U (en) | Combustion gas high-pressure and overflowing stop valve | |
| CN208397412U (en) | A kind of external pilot formula reversal valve | |
| CN209340113U (en) | A kind of magnetic sensible switch structure of vacuum storing cabinet | |
| CN201866360U (en) | Push type multifunctional overcurrent-protection gas valve | |
| CN109027355B (en) | Micro-control controller | |
| CN218118815U (en) | Air outlet valve structure of air storage gun | |
| CN207673929U (en) | A kind of double two-bit triplet solenoid valves of integrated form | |
| CN109027397A (en) | A kind of pneumatic amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 430070 the three floor of the village office building of new road village, Hongshan Cultural District, Wuhan, Hubei. Applicant after: WUHAN TORLEO INTELLIGENT CO.,LTD. Address before: 430070, 3rd floor, office building, new road village, culture Avenue, Hongshan District, Wuhan, Hubei. Applicant before: TORLEO MONITORING & CONTROL TECH CO.,LTD. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |