CN206112117U - Valve is cut soon to active machinery of non - - Google Patents
Valve is cut soon to active machinery of non - Download PDFInfo
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- CN206112117U CN206112117U CN201621106405.4U CN201621106405U CN206112117U CN 206112117 U CN206112117 U CN 206112117U CN 201621106405 U CN201621106405 U CN 201621106405U CN 206112117 U CN206112117 U CN 206112117U
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Abstract
The utility model discloses a valve is cut soon to active machinery of non - can solve that heat accumulation oxidation unit and waste heat recovery utilize system's higher concentration of gas mixing in -process to take out to adopt gas safety, the problem is cut off in quick, linkage. The utility model discloses a valve is cut soon to active machinery of non - opens through rocking arm transmitting gear dish, relies on the malleation bleed to promote nonmetal flexible sheet and drives locking -lever spreadet spreadet wheel dish, makes the valve plate be located the state of opening, when air -blower exit gas decompression, the diaphragm drives the multi -connecting -rod mechanism unlocking teeth rim plate under reset spring's effect, and the valve is closed to the valve plate under closed torsional spring effect of the torque. The core function of valve lies in cutting off in step safely, the active form of non -, and pure mechanical action, the process does not have the extra power and intervenes, the complex system's that has avoided compriseing PLC and electricity, liquid, gas actuating mechanism unreliability, the bleed is used for the locking valve, reduces and artificially can open the participation, avoids the maloperation.
Description
Technical field
This utility model is related to two kinds of variable concentrations gas blending safety, quick, linkage shearing device, more particularly to accumulation of heat
The linkage of higher concentration mash gas extraction and extremely low concentration ventilating gas in oxidation unit and bootstrap system gas blending procedure
Cut-out.
Background technology
Generally require to mix in ventilating gas oxidation processes the mash gas extraction of certain higher concentration, and mash gas extraction
Reliable cut-out is directly connected to the safe operation of oxidation unit.Generally, in industry using by stop valve (electricity, liquid or pneumatic),
The supply and cut-out of the control system control mash gas extraction of the compositions such as effusion meter, concentration detector and PLC, to avoid ventilating tile
When this stops supplying, the mash gas extraction of higher concentration still constantly blends the deflagration accident for causing.This method depends on control strategy
The reliability of the hardware such as accuracy, valve instrument and the correct operation of operation operator, during be related to it is complex
Measurement, calculation procedure and control instruction, increased the unreliability of technological process.Such method is in general industry application
Feasible, but when in the face of occasions higher to security requirement such as flammable explosive gas blending, cannot fundamentally solve peace
Full hidden danger.
Mechanical linkage valve well known in the prior art, relies primarily on the bleed conduct of blower export in ventilating gas pipeline
The power of valve opening, it is ensured that mash gas extraction just allows blending to enter after forming certain blast in ventilating gas pipeline.But should
Some deficiencies that valve is present are that, when gas density transfinites and have a power failure generation, aerator is shut down, and ventilating gas pipeline loses
Pressure, valve cut-out, if the super concentration gas after blending not and diffuses again power transmission unlatching blower fan, now mechanical linkage valve is in induced duct
It is synchronous under pressure effect to open, continue blending, cause blending after gas concentration further to raise, cause security incident.It is this general
The less situation of rate mining area is unstable stop power transmission and complicated actual production process in occurred.
The many factors such as the operation of system blower is by having a power failure, the system failure, gas overpressure concentration are affected, whenever all kinds of feelings
After condition causes safety interlocking, start again is required to do safety and failture evacuation inspection.If fan outlet blast is direct
Interlocking mechanism stop valve open, it is clear that this inspection and failture evacuation link exist careless omission will necessarily for safety in production bury it is hidden
Suffer from.
To sum up, current blending mode one kind is actively adjusted by control system, it is adaptable to general industry process, program
It is complex, there is the potential safety hazard of equipment dependability, strategy design and manual operation accuracy；One kind is mechanical linkage, mesh
Before still suffer from the safety problem that the direct linkage valve of blast is opened.
Utility model content
The purpose of this utility model is to provide a kind of passive machinery to cut valve soon, and valve is manually opened, draws by malleation
Gas lock stops valve so as to be in normally open in normal operation.When main pipeline (ventilating gas pipeline) interior gas decompression, lock
Locking mechanism discharges, and valve is closed in the presence of closure torsion spring or weight, and drives without the need for external energy.The valve realizes pole
Low concentration ventilating gas and higher concentration mash gas extraction blending procedure non-passive safety cutting-off controlling, are driven using simple mechanical
Method improves the reliability of valve, it is ensured that oxidation unit safe operation.
This utility model by the technical scheme that solution its technical problem is taken is：
One kind is passive to cut valve, including air entraining pipe, air chamber, multi-connecting-rod mechanism and valve body soon, it is characterised in that：
-- non-metal elastic diaphragm is set in the air chamber, and air chamber is divided into Hu Bu UNICOMs by the non-metal elastic diaphragm
Two plenum spaces, wherein, one end UNICOM of a plenum space and air entraining pipe, the other end connection positive pressure gas of the air entraining pipe
Body pipeline, another plenum space and atmosphere；
-- a connection piece is set on the non-metal elastic diaphragm, and the side of the connector passes through air chamber by a rod member
A wall be connected with the one end for the back-moving spring being arranged on outside air chamber, the opposite side of the connector passes through another rod member
Another wall through air chamber is connected with the multi-connecting-rod mechanism being arranged on outside air chamber；
-- one end of the valve body is arranged opens and lockable mechanism, and the other end arranges close mechanism, wherein：
The unlatching and lockable mechanism include locking rod, locking tooth wheel disc and rocking arm, the outer rim cloth of the locking tooth wheel disc
Be equipped with the locking gear teeth, the rocking arm be set in the card of locking tooth wheel disc, the rocking arm to manually opened valve body, locking rod
One end is connected with multi-connecting-rod mechanism, and the other end is abutted with the locking gear teeth of locking tooth wheel disc, to pin toothed disc.
Preferably, the resilient nonmetallic diaphragm, under described two plenum space differential pressure actions produces displacement, and drives
Multi-connecting-rod mechanism；The other end of the back-moving spring arranges pretightning force regulating bolt.Valve needs to consider nonmetallic in design
Displacement of the diaphragm under different difference forces, the effect of back-moving spring pretightning force, so that it is determined that the Opening pressure of valve, it is ensured that air blast
Valve opening when machine rate of discharge reaches design load.In practical operation, can be realized by adjusting initial tension of spring.
Preferably, the multi-connecting-rod mechanism includes the rotating bar that several connecting rods and several quantity are adapted, described many
Linkage is to realize the amplification of the resilient nonmetallic diaphragm motive force and the conversion of action direction.Preferably, rotating bar
Universal joint connection is set.Additionally, multi-connecting-rod mechanism is conducive to the contour structures for adjusting valve.
Preferably, in the rotating bar that described several quantity are adapted, an at least rotating bar amplifies lever as active force,
At least a rotating bar is used as action direction shifter lever.
Preferably, the valve body is sealed into the soft sealing of contact, and the valve plate in the valve body is butterfly valve structure or turns over
Plate valve structure.
Preferably, the close mechanism includes torsion spring device, and the torsion spring device includes torsion spring and positioning turntable, torsion spring one
Valve body is fixed at end, in the location hole of other end insertion positioning turntable, for producing the valve plate closed action in valve body.
Preferably, the close mechanism also includes the outermost weight of valve plate rotary shaft for being arranged on valve body, spreadet spreadet wheel
After unblock, valve plate closes valve by weight return, and torsion spring power is used to compress valve plate sealing.
Preferably, the positioning turntable circumferentially has multiple location holes, by torsion spring is inserted in different location holes,
Different torsion spring twisting resistances are set.
The valve body is butterfly valve structure, can also adopt flap valve form, according to flap valve form, longitudinal position of two side axles
Put and suitably need to adjust.Wherein, one end axle installs toothed disc and lockable mechanism that can be manually opened, and other end axle is installed closure and turned round
Spring and weight-driven.Valve seal is the soft sealing of contact.The valve handles dynamic unlatching, torsion spring is compressed produce moment of torsion or
Weight lifting, toothed disc locking；Locking structure is unlocked, and torsion spring drives valve plate revolution, closes valve.Torsion spring torque passes through locating wheel
Disk is delivered to rotating shaft, and positioning turntable circumferential position is disposed with location hole, is easy to debugging of the engineering site to torsion spring twisting resistance to adjust.
Compared with the existing technology, passive machinery of the present utility model is cut valve soon and has significant technique effect：Valve handss
It is dynamic to open, by malleation bleed locking valve so as to be in normally open in normal operation.When gas decompression in main pipeline
(situation of such as fan parking), lockable mechanism release, valve is closed in the presence of closure torsion spring or weight, not against outside
Energy drives.The valve is realized extremely low concentration ventilating gas and is cut off with higher concentration mash gas extraction blending procedure non-passive safety
Control, the method being driven using simple mechanical improve the reliability of valve, it is ensured that oxidation unit safe operation.The core of valve
Function is secure synchronization cut-out, and passive form, purely mechanic action, process are intervened without extra power, it is to avoid by PLC and
Electricity, liquid, the unreliability of the complication system of gas drive mechanism composition；Bleed is used for locking valve, and participation can be artificially opened in reduction
Degree, it is to avoid maloperation.
Description of the drawings
Fig. 1 is the signal that passive machinery of the present utility model cuts valve and blend for ventilating gas and mash gas extraction system soon
Figure；
Fig. 2 is that passive machinery of the present utility model cuts valve arrangement schematic diagram soon；
Fig. 3 is to open and lockable mechanism schematic diagram；
Fig. 4 is positioning turntable schematic diagram.
Specific embodiment
To make the purpose of this utility model, technical scheme and advantage become more apparent, develop simultaneously enforcement referring to the drawings
Example, further describes to this utility model.It should be noted that described below is only preferable enforcement of the present utility model
Therefore example, do not limit protection domain of the present utility model.
It should be noted that the implementation for not illustrating in accompanying drawing or describing, is ordinary skill people in art
Form known to member.Additionally, the direction term mentioned in following examples, for example " on ", D score, "front", "rear", " left side ",
" right side ", " top ", " bottom " etc., are only the directions of refer to the attached drawing.Therefore, the direction term for using is for illustrating not for limiting
This utility model.
This utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, to realize more preferable energy-saving and emission-reduction and energy utilization, in ventilating gas oxidation processes often
Need to mix the mash gas extraction of certain higher concentration, (such as methane concentration is 8-30%'s to the mash gas extraction gas of higher concentration
Mash gas extraction) Jing safety regulating valves group 16, passive machinery cuts valve 17 soon and blends section 18 into ventilating gas pipeline, while relatively low
The mash gas extraction gas (mash gas extraction of such as methane concentration for 0.2-0.3%) of concentration is also passed into ventilating gas pipeline blending section
18, the mash gas extraction gas of the mash gas extraction gas and low concentration of higher concentration is carried out in ventilating gas pipeline blending section 18
Blending, methane gas Jing dehydration dedusting pretreatment section 19, aerator 20 superchargings after blending are processed into oxidation unit 21, non-energy
Motivation tool cuts the safety that valve 17 ensures blending procedure soon.
As in Figure 2-4, it is of the present utility model to cut valve 17 soon for the passive machinery of gas blending, including air entraining pipe 1, gas
The composition such as room 2, non-metal elastic diaphragm 3 and back-moving spring 4, multi-connecting-rod mechanism, lockable mechanism 7, valve body 10, closure torsion spring 11.
Non-metal elastic diaphragm 3 is set in air chamber 2, and non-metal elastic diaphragm 3 is by 2 points of upper chambers for Hu Bu UNICOMs of air chamber
201 and lower chamber 202, wherein, one end UNICOM of upper chamber 201 and air entraining pipe 1, the other end and the system superintendent road of air entraining pipe 1
The outlet UNICOM of aerator 20, lower chamber 202 and atmosphere.The center of nonmetallic diaphragm 3 arranges a connection piece 31, should
The top of connector 31 is connected with the back-moving spring 4 for being arranged on 2 top of air chamber through the roof of air chamber 2 by a rod member, is resetted
The top of spring 4 is provided with adjustable pretension bolt 15.The bottom of connector 31 by another rod member through air chamber 2 diapire with
The connecting rod 5 for being arranged on the multi-connecting-rod mechanism of 2 bottom of air chamber is hinged；Multi-connecting-rod mechanism includes multiple connecting rods 5 and several rotating bars
6, connected by universal joint between connecting rod 5 and rotating bar 6, rotating bar 6 is used for the active force for amplifying nonmetallic diaphragm 3 and conversion connects
Bar action direction.
Valve body 10 can for example be butterfly valve structure, can also adopt flap valve form, according to flap valve form, two side axles
Lengthwise position suitably need to be adjusted.One end axle of valve body 10 is installed and is opened and lockable mechanism 7, and other end axle installs close mechanism.Valve
Body 10 is sealed into the soft sealing of contact.Wherein, open and lockable mechanism 7 includes locking rod 8, locking tooth wheel disc 9 and insertion
Formula rotates hand arm 14, and locking tooth wheel disc 9 is disposed with the ferrum or rustless steel wheel disc of the locking gear teeth for outer rim, outside locking tooth wheel disc 9
Connect plug-in type and rotate hand arm 14, plug-in type rotates hand arm 14 can be with manually opened valve body 10.The upper end of locking rod 8 connects with more
Linkage connects, and lower end is abutted with the locking gear teeth of 9 outer rim of locking tooth wheel disc, can pin toothed disc 9.Close mechanism can be
Torsion spring device and weight-driven.Torsion spring device includes torsion spring 11 and positioning turntable 12, and 12 circumferential position of positioning turntable is disposed with many
Individual location hole, 11 one end of torsion spring are fixed, and the other end is connected with the location hole of positioning turntable 12, and torsion spring 11 is produced after valve opening
Raw moment of torsion drives positioning turntable 12 to drive valve body 10 to rotate, and closes then valve, different by torsion spring 11 is connected to
In location hole, it is easy to debugging of the engineering site to torsion spring twisting resistance to adjust.Weight is arranged on the valve plate rotary shaft outermost of valve body,
After spreadet spreadet wheel unblock, valve plate closes valve by weight return, and torsion spring power is used to compress valve plate sealing.
When the passive mechanical cutting valve of this utility model works, air entraining pipe 1 is from 20 exit bleed of aerator to upper chamber
201, adjust the pretension bolt 15 on 4 top of back-moving spring so as to which pretightning force, the elastic force of nonmetallic diaphragm 3 and aerator 20 are just
The pressure reduction thrust that pressure bleed is produced with 202 air of lower chamber reaches balance.Such as, it is when the outlet of aerator 20 reaches 3kPa, nonmetallic
Diaphragm 3 under 4 pretightning force of back-moving spring and pressure reduction thrust, by bearing, multi-connecting-rod mechanism driving force and displacement, it is ensured that
8 screens locking tooth wheel disc 9 of locking rod.
Wherein, the lever construction that connecting rod 5 is formed by fulcrum 1, amplifies downward thrust, should by fulcrum 2 23
The power of amplification is delivered to locking rod 8.Before 8 action of locking rod, 14 rotary teeth wheel disc 9 of hand arm is rotated by plug-in type, is opened
Open valve.Block the teeth groove of 9 circumference of toothed disc, locking tooth wheel disc 9 in 8 front end of locking rod.Locking tooth wheel disc 9, valve plate and torsion spring machine
Structure is coaxially arranged.While valve opening, the positioning turntable 12 in 9 synchronous drive torsion spring mechanism of toothed disc rotates so that torsion spring
11 twisting resistances for generating a closing valve.
When because of the reason blower export decompression such as the system failure, power failure, i.e. ventilating gas air in pipeline flow reduction
Or disappear, act on the difference force on nonmetallic diaphragm 3 and reduce or disappear, in the presence of 4 power of back-moving spring, linkage band
Dynamic locking rod 8 is moved upwards, and rotary teeth wheel disc 9 is unlocked, and now, under the effect of 11 twisting resistance of torsion spring, positioning turntable 12 drives valve
Plate 10 is rotated closes valve, cuts off mash gas extraction passage.
Passive mechanical cutting valve Core Feature of the present utility model is to realize that higher concentration mash gas extraction is safe, quick
And cut off with ventilating gas linkage, cutting-off process is instructed not against extra power and control system, and passive form, machinery are passed
Dynamic, this is most important in the dangerous gas industrial circle such as inflammable and explosive for processing.Additionally, though this valve is adopted manually open
Open, but in blower export no pressure (system blackout, scram etc.), artificial unlatching is unable to locking valve so as to be difficult to
In opening, the hidden danger that artificial maloperation brings is itself avoids from valve mechanism.Gate principle is simple, compact conformation,
Easy processing is manufactured and engineering site installation and debugging, and the safety that energy effectively solving regenerative oxidation device processes blending methane gas is hidden
Suffer from.
It should be understood by those skilled in the art that, this utility model is not restricted to the described embodiments, above-described embodiment and
Described in description is to illustrate principle of the present utility model, on the premise of without departing from this utility model spirit and scope,
This utility model also has various changes and modifications, and these changes and improvements both fall within claimed this utility model scope
It is interior.The claimed scope of this utility model is by appending claims and its equivalent thereof.
Claims (8)
1. one kind is passive cuts valve, including air entraining pipe, air chamber, multi-connecting-rod mechanism and valve body soon, it is characterised in that
-- non-metal elastic diaphragm is set in the air chamber, and air chamber is divided into the non-metal elastic diaphragm two of Hu Bu UNICOMs
Plenum space, wherein, one end UNICOM of a plenum space and air entraining pipe, the other end connection barotropic gas pipe of the air entraining pipe
Road, another plenum space and atmosphere,
-- a connection piece, a wall and setting of the described connector one end through air chamber are set on the non-metal elastic diaphragm
One end connection of the back-moving spring outside the air chamber, the other end of the connector through air chamber another wall and be arranged on gas
The multi-connecting-rod mechanism connection of outdoor,
-- one end of the valve body is arranged opens and lockable mechanism, and the other end arranges close mechanism, wherein,
The unlatching and lockable mechanism include locking rod, locking tooth wheel disc and rocking arm, and the outer rim of the locking tooth wheel disc is disposed with
The locking gear teeth, arrange the rocking arm in the card of locking tooth wheel disc, the rocking arm is to manually opened valve body, one end of locking rod
It is connected with multi-connecting-rod mechanism, the other end is abutted with the locking gear teeth of locking tooth wheel disc.
2. it is passive as claimed in claim 1 to cut valve soon, it is characterised in that the resilient nonmetallic diaphragm, described two
Displacement is produced under plenum space differential pressure action, and drives multi-connecting-rod mechanism；The other end of the back-moving spring arranges pretightning force and adjusts
Section bolt.
3. it is as claimed in claim 1 passive to cut valve soon, it is characterised in that the multi-connecting-rod mechanism include several connecting rods and
The rotating bar that several quantity are adapted, the multi-connecting-rod mechanism is to realize the amplification of the resilient nonmetallic diaphragm motive force
With the conversion of action direction.
4. it is passive as claimed in claim 1 to cut valve soon, it is characterised in that the rotating bar that described several quantity are adapted
In, an at least rotating bar amplifies lever as active force, and at least a rotating bar is used as action direction shifter lever.
5. it is as claimed in claim 1 passive to cut valve soon, it is characterised in that the valve body to be sealed into contact soft close
Envelope, the valve plate in the valve body are butterfly valve structure or flap valve.
6. it is passive as claimed in claim 1 to cut valve soon, it is characterised in that the close mechanism includes torsion spring device, described
Torsion spring device includes torsion spring and positioning turntable, and one end is fixed on valve body, in the location hole of other end insertion positioning turntable.
7. it is passive as claimed in claim 6 to cut valve soon, it is characterised in that the close mechanism also includes being arranged on valve body
The outermost weight of valve plate rotary shaft, after spreadet spreadet wheel unblock, valve plate closes valve by weight return, and torsion spring power is used to compress
Valve plate is sealed.
8. it is passive as claimed in claim 6 to cut valve soon, it is characterised in that the positioning turntable circumferentially has multiple positioning
Hole, by torsion spring is inserted in different location holes, arranges different torsion spring twisting resistances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621106405.4U CN206112117U (en) | 2016-10-09 | 2016-10-09 | Valve is cut soon to active machinery of non - |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621106405.4U CN206112117U (en) | 2016-10-09 | 2016-10-09 | Valve is cut soon to active machinery of non - |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206112117U true CN206112117U (en) | 2017-04-19 |
Family
ID=58528172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621106405.4U Active CN206112117U (en) | 2016-10-09 | 2016-10-09 | Valve is cut soon to active machinery of non - |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206112117U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681544A (en) * | 2022-10-14 | 2023-02-03 | 江苏圣业阀门有限公司 | Ultra-low temperature ball valve |
| CN116734018A (en) * | 2023-08-10 | 2023-09-12 | 石家庄先楚核能装备股份有限公司 | Passive safety relief valve |
-
2016
- 2016-10-09 CN CN201621106405.4U patent/CN206112117U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681544A (en) * | 2022-10-14 | 2023-02-03 | 江苏圣业阀门有限公司 | Ultra-low temperature ball valve |
| CN115681544B (en) * | 2022-10-14 | 2023-09-15 | 江苏圣业阀门有限公司 | Ultra-low temperature ball valve |
| CN116734018A (en) * | 2023-08-10 | 2023-09-12 | 石家庄先楚核能装备股份有限公司 | Passive safety relief valve |
| CN116734018B (en) * | 2023-08-10 | 2023-10-31 | 石家庄先楚核能装备股份有限公司 | Passive safety relief valve |
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