CN107514493A - A kind of automatic closing appliance and reaction unit - Google Patents
A kind of automatic closing appliance and reaction unit Download PDFInfo
- Publication number
- CN107514493A CN107514493A CN201710734072.2A CN201710734072A CN107514493A CN 107514493 A CN107514493 A CN 107514493A CN 201710734072 A CN201710734072 A CN 201710734072A CN 107514493 A CN107514493 A CN 107514493A
- Authority
- CN
- China
- Prior art keywords
- return
- air inlet
- inlet pipe
- sealing ring
- locating part
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/048—Ball features
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a kind of automatic closing appliance and reaction unit, locking device includes gas handling system, gas handling system includes air inlet pipe, anti-return sealing ring and anti-return locating part, anti-return sealing ring is arranged in the tube chamber of air inlet pipe, anti-return sealing ring has air admission hole, the both ends of air inlet pipe are connected by air admission hole, anti-return locating part is located in air inlet pipe, anti-return locating part has operating position and off-position, wherein, operating position refers to that anti-return locating part closes air admission hole, off-position refers to anti-return locating part with anti-return sealing ring separately.Reaction unit includes the automatic closing appliance.Automatic closing appliance is simple and reasonable, is easy to manufacture to process, and processing cost is low, meanwhile, the anti-return effect of waste gas is good, and waste gas is not easy to reveal, and whole automatic closing appliance is hardly damaged, service life length.
Description
Technical field
The present invention relates to field of chemical equipment, in particular to a kind of automatic closing appliance and reaction unit.
Background technology
At present, in existing chemical process, when need to blast gas to consersion unit and reacted.Consersion unit exists
It can roll under rotation dynamical state or inactive state, by the design of reverse air supply system wind path and blast velocity control, from afterbody air blast,
Material batch (-type) air blast supply into consersion unit, when air blast supplies, air pressure increase in main reaction equipment, when air blower stops
When only supplying, due to air pressure superatmospheric in main reaction equipment, the waste gas in main reaction equipment can flow back along air supply system, production
Raw exhaust gas leakage pollution air ambient.Prior art is to use easy check-valves, or with single-way switch, when supply stop when,
Switch is automatic to be closed to prevent that waste gas is excessive.Inventor has found that the anti-return of the valve of traditional air supply system fills under study for action
Put and at least have the disadvantage that in use：Using check-valves or single-way switch, all can severe decrease air supply pipe mouth
Footpath, make draught capacity insufficient, and be easily damaged, cause waste gas largely to leak；, all can not be tight using check-valves or single-way switch
Sealing is closed, and always causes a small amount of exhaust gas leakage under normal circumstances；Make complicated, operation and maintenance maintenance is all inconvenient, using into
This height.
The content of the invention
It is simple and reasonable it is an object of the invention to provide a kind of automatic closing appliance and reaction unit, it is easy to manufacture
Processing, is installed on easy to maintenance；Anti- exhaust gas recirculation effect is good, is hardly damaged, service life length.
To achieve the above object, the present invention provides following technical scheme：
It is simple and reasonable it is an object of the invention to provide a kind of automatic closing appliance, it is easy to manufacture to process, is installed on maintenance
It is convenient；Anti- exhaust gas recirculation effect is good, is hardly damaged, service life length.
It is simple and reasonable the present invention also aims to provide a kind of reaction unit, it is easy to manufacture to process, is installed on dimension
Repair conveniently；Anti- exhaust gas recirculation effect is good, is hardly damaged, service life length.
What embodiments of the invention were realized in：
Based on above-mentioned first purpose, the invention provides a kind of automatic closing appliance, and it includes gas handling system, the gas handling system
Including air inlet pipe, anti-return sealing ring and anti-return locating part, the anti-return sealing ring is arranged on the pipe of the air inlet pipe
Intracavitary, the anti-return sealing ring have air admission hole, and the both ends of the air inlet pipe are connected by the air admission hole, described to prevent back
Stream locating part is located in the air inlet pipe, and the anti-return locating part has operating position and off-position, wherein, the work
Refer to that the anti-return locating part closes the air admission hole as position, the off-position refer to the anti-return locating part with
The anti-return sealing ring is separately.The tube chamber of the air inlet pipe is cylinder, and the anti-return sealing ring is in the form of annular discs, described
The outer peripheral face of anti-return sealing ring is sealedly attached to the inwall of the air inlet pipe；The air admission hole is provided in round hole, described anti-
Backflow locating part has sphere, and the diameter of the sphere is more than the aperture of the air admission hole.
Preferably, the anti-return sealing ring is made of elastomeric material.
Preferably, the anti-return locating part is steel ball, and the diameter of the steel ball is more than the aperture of the air admission hole.
Preferably, the anti-return sealing ring includes inlet end and outlet side, and the anti-return locating part is positioned at described anti-
The outlet side of backflow sealing ring, outlet side end face corresponding with the anti-return sealing ring passes through circular conical surface, the circular cone
The internal diameter in face is tapered towards the direction of the inlet end by the outlet side.
Preferably, the inwall of the air inlet pipe is provided with annular groove, and the groove depth direction of the annular groove is along the air inlet pipe
Radially outward, side face direction extension of the length direction of the annular groove along the air inlet pipe；The anti-return sealing ring card
Tightly in the annular groove.
Preferably, the gas handling system also includes locating part, and the locating part is installed in the air inlet pipe, for limiting
The anti-return locating part skids off the air inlet pipe towards the direction away from the anti-return sealing ring.
Preferably, the locating part is arranged to protuberance, and the protuberance is installed on the inwall of the air inlet pipe, described convex
Go out inwall of the portion along the radially inwardly projecting air inlet pipe of the air inlet pipe, the anti-return locating part is located at the anti-return
Between sealing ring and the protuberance.The locating part is arranged to elastic component, and one end of the elastic component, which is connected to, described prevents back
Sealing ring is flowed, the other end of the elastic component is connected to the anti-return locating part, and the elastic component makes the anti-return spacing
Part has the trend towards anti-return sealing ring motion.
Based on above-mentioned second purpose, the invention provides a kind of reaction unit, it includes retort and described automatic
Locking device, the retort have reaction chamber, and the air inlet pipe is installed on the retort and the connection reaction chamber.
The beneficial effects of the invention are as follows：
The invention provides a kind of automatic closing appliance, and the automatic closing appliance is simple and reasonable, is easy to manufacture to process, processing
Cost is low, meanwhile, the anti-return effect of waste gas is good, and waste gas is not easy to reveal, and whole automatic closing appliance is hardly damaged, service life
It is long.Automatic closing appliance provided by the invention, including gas handling system, gas handling system include air inlet pipe, anti-return sealing ring and
Anti-return locating part, anti-return sealing ring are arranged in air inlet pipe, and anti-return sealing ring has air inlet, and gas is externally entering
When, enter from one end of air inlet pipe, by air inlet, exported from the other end of air inlet pipe, anti-return sealing ring do not interfere with into
The normal air inlet function of tracheae, it is easy to use.Meanwhile anti-return locating part is installed in air inlet pipe, anti-return locating part position
In one end of air inlet, push against and connect with anti-return sealing ring, anti-return locating part has operating position and off-position, prevents
When backflow locating part is located at operating position, anti-return locating part can be blocked in the end of air inlet, i.e. waste gas is out of retort
When being moved outwardly along air inlet pipe, waste gas is acted on anti-return locating part so that it is close that anti-return locating part is clamped on anti-return
In seal, air inlet is blocked, waste gas can not overflow from air inlet, and anti-return effect is good, and simple and reasonable, installation and manufacture
Cost is low；When anti-return locating part is located at off-position, with air inlet separately, anti-return locating part is or not anti-return locating part
Air inlet can be blocked, i.e., when being ventilated into air inlet pipe, impulsive force caused by gas stream is dynamic by acted on after air inlet be located at into
On the anti-return locating part of gas port end, active force is more than the gravity of anti-return locating part, anti-return locating part is jacked up certain
Height so that air inlet connects with air inlet pipe, and gas can enter retort, completes air inlet.Whole locking device structure
Advantages of simple, operation principle is simple, easy to use and reliable, and the effect of sealing is good, and is hardly damaged, easy to replace and maintain.This
The reaction unit provided is provided, all advantages with above-mentioned automatic closing appliance, uses Environmental Safety.
Brief description of the drawings
Fig. 1 is the sectional view (off working state) of the air supply system of the embodiment of the present invention one；
Fig. 2 is the sectional view (working condition) of the air supply system of the embodiment of the present invention one；
Fig. 3 is the sectional view of the anti-return sealing ring of the embodiment of the present invention one；
Fig. 4 is the sectional view of the distressed structure of the anti-return sealing ring of the embodiment of the present invention one；
Fig. 5 is the sectional view of the air inlet pipe of the embodiment of the present invention one；
Fig. 6 is the sectional view of the distressed structure of the air inlet pipe of the embodiment of the present invention one；
Fig. 7 is the sectional view of the air supply system of the embodiment of the present invention two；
Fig. 8 is the distressed structure sectional view of the air supply system of the embodiment of the present invention two.
In figure：100- gas handling systems；200- air inlet pipe；The tube chambers of 201- first；The tube chambers of 202- second；203- annular grooves；
300- anti-return sealing rings；301- inlet ends；302- outlet sides；303- circular conical surfaces；304- first edges；305- second edges；
306- air admission holes；400- anti-return locating parts；500- protuberances；600- elastic components.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment 1
Refer to Fig. 1-2, wherein, Fig. 1 shows that air supply system is in the sectional view of off working state, off working state refer to not to
The state of ventilation in air inlet pipe 200, Fig. 2 show the in running order sectional view of air supply system, working condition be directed into
The state of ventilation in tracheae 200, the embodiments of the invention provide a kind of automatic closing appliance, in retort, preventing
Only the waste gas in course of reaction in retort overflows at air supply system, pollutes environment, it includes air supply system.
Air supply system includes air inlet pipe 200, anti-return sealing ring 300 and anti-return locating part 400.
Referring to Fig. 3, anti-return sealing ring 300 is arranged in air inlet pipe 200, anti-return sealing ring 300 is provided with air inlet
Hole 306, the shapes and sizes of air admission hole 306 are set on demand, are preferably arranged to circular port, are easy to process, and are easy to seal.Prevent back
The outer peripheral face of stream sealing ring 300 is connected with the inwall of air inlet pipe 200, carries out encapsulation process, ensures that gas will not be from anti-return
The junction of sealing ring 300 and air inlet pipe 200 is overflowed, can be in anti-return sealing ring 300 and air inlet during actual processing
The junction spreading glue of pipe 200, glue can either strengthen the connectivity robustness of anti-return sealing ring 300 and air inlet pipe 200, together
When, glue has good sealing effectiveness, and more convenient during use.
Further, in order to ensure the service life of anti-return sealing ring 300, it is not easy to air inlet pipe 200 and produces disengaging now
As being preferably arranged to, anti-return sealing ring 300 is made of elastomeric material, such as can be made of elastomeric material, making side
Just, it is easy to be molded, processing cost is low.The bonding of anti-return sealing ring 300 and glue is more firm, is easily installed in air inlet pipe
In 200.Anti-return sealing ring 300 is arranged to discoid, and the tube chamber of air inlet pipe 200 is arranged to cylinder, is easy to fabricate, and
It is easy to the installation of anti-return sealing ring 300, sealing is more convenient, good sealing effect.Anti-return sealing ring 300 and air inlet pipe 200
Interference fit can be used, i.e. the diameter of the outer peripheral face of anti-return sealing ring 300 is more than the diameter of the tube chamber of air inlet pipe 200, peace
After dress, anti-return sealing ring 300 is in squeezed state, good sealing effect.
Fig. 2 and Fig. 4 are referred to, anti-return sealing ring 300 is in the form of annular discs, and anti-return sealing ring 300 has air admission hole 306,
After actual installation, gas enters through air admission hole 306 from air inlet pipe 200 and is flowed into retort, and anti-return sealing ring 300 has
Inlet end 301 and outlet side 302, from figure 2 it can be seen that lower end is inlet end 301, upper end is outlet side 302, i.e., gas from
Air inlet pipe 200 enter it is fashionable first pass through inlet end 301, flowed out after flowing through air admission hole 306 from outlet side 302, outlet side 302 with it is described
End face is connected by circular conical surface 303 corresponding to anti-return sealing ring 300, and circular conical surface 303 has first edge 304 and second edge
305, first edge 304 is located at air admission hole 306 and the intersection of circular conical surface 303, and second edge 305 is located at circular conical surface 303 and prevented back
The face intersection of sealing ring 300 is flowed, the internal diameter of circular conical surface 303 is tapered towards the direction of inlet end 301 by outlet side 302, i.e.,
The internal diameter of first edge 304 is less than the internal diameter of second edge 305.
Fig. 1 or Fig. 2 is referred to, anti-return locating part 400 mainly plays check valve, and anti-return locating part 400 is pacified
In air inlet pipe 200, the inlet end 301 of air admission hole 306 is made to be connected towards outlet side 302, the outlet side 302 of air admission hole 306
Blocked towards inlet end 301, i.e. anti-return locating part 400 is arranged on the position at the end of going out of anti-return sealing ring 300, gas
Flowed into from one end of air inlet pipe 200, when first passing through the inlet end 301 of air admission hole 306, gas can flow out from outlet side 302, enter
And retort is flowed to, now anti-return locating part 400 is in off-position；And the gas in retort is prevented when outwards flowing
Backflow locating part 400 is blocked at outlet side 302, and gas can not be overflowed from air inlet pipe 200, and anti-return locating part 400 is in
Operating position, it ensure that environmental sanitation.Specifically, during real work, air inlet pipe 200 is in vertically arranged, anti-return sealing ring 300
In air inlet pipe 200, air admission hole 306 is coaxially disposed with air inlet pipe 200, and anti-return locating part 400 is located at air admission hole 306
Outlet side 302.During ventilation, gas flows into from one end of air inlet pipe 200, by the air admission hole 306 of anti-return sealing ring 300,
Under the impact forces of gas, anti-return locating part 400 is jacked up to certain height, anti-return locating part 400 and anti-return are close
There is gap between the outlet side 302 of seal 300, supplied gas enters；After ventilation, anti-return locating part 400 is in itself weight
Under power effect, it is pressed on anti-return sealing ring 300, meanwhile, the air admission hole 306 of closing anti-return sealing ring 300；In retort
Gas from air inlet pipe 200 outwards flow when, gas is acted on anti-return locating part 400, and anti-return locating part 400 is pressed on
On anti-return sealing ring 300, and extrude under the active force of gas even closer, gas will not flow out to outer from air admission hole 306
In boundary's environment, do not pollute the environment.
In order to improve sealing effectiveness, anti-return locating part 400 has a sphere, and air admission hole 306 is circular port, the diameter of sphere
More than the aperture of air admission hole 306, it can be good at sealing air admission hole 306, be not easy gas leakage.Be preferably arranged to steel ball, steel ball it is straight
Footpath is more than the diameter of air admission hole 306, and is less than the caliber of air inlet pipe 200, convenient processing and manufacture, is hardly damaged, meanwhile, steel ball
Quality weight, it is good to be pressed on the effect of anti-return sealing ring 300, steel ball can self-return, the position of steel ball is not fixed easily, i.e., easily
Roll, therefore, during steel ball jacks up return, steel ball contacts with anti-return sealing ring 300, can roll and be sealed in automatically
At air admission hole 306, due to having circular conical surface 303 between the outlet side 302 of air admission hole 306 and the end face of anti-return sealing ring 300,
After steel ball is located at circular conical surface 303, the contact area of the sphere and circular conical surface 303 of steel ball is bigger, and sealing effectiveness is more preferable, and is easy to steel
Ball return is sealed at air admission hole 306.
Referring to Fig. 6, air inlet pipe 200 is the main place of gas flowing, air inlet pipe 200 could be arranged to cylindrical tube,
It is easy to process, anti-return sealing ring 300 and anti-return locating part 400 is installed in the tube chamber of air inlet pipe 200.Obviously,
The diameter of steel ball should meet the aperture more than air admission hole 306, will not be dropped at air admission hole 306, simultaneously, it is impossible to more than air inlet
The caliber of pipe 200, it is easy to the normal circulation of gas.In order to improve the flowing flexibility of gas, air inlet pipe 200 can be arranged to
Ladder tubulose, i.e. air inlet pipe 200 have the first tube chamber 201 and the second tube chamber 202 of connection, are preferably coaxially disposed, the first pipe
The caliber of chamber 201 is less than the diameter of the second tube chamber 202, and anti-return sealing ring 300 and anti-return locating part 400 are arranged on the first pipe
In chamber 201, after anti-return locating part 400 jacks up, gas flow to the second tube chamber 202, and the diameter of the second tube chamber 202 is big, is easy to
The flowing of gas.
Referring to Fig. 5, it is further, in order to improve the sealing effectiveness of anti-return sealing ring 300 and air inlet pipe 200, air inlet
The inwall of pipe 200 is provided with annular groove 203, side face direction extension of the annular groove 203 along air inlet pipe 200, the groove depth of annular groove 203
Along air inlet pipe 200 radially outward, annular groove 203 is preferably arranged to rectangular channel in direction, has bottom land and is arranged on bottom land phase
To both sides two groove sidewalls, anti-return sealing ring 300 be arranged on annular groove 203 in, two disks of anti-return sealing ring 300
Face is brought into close contact with two groove sidewalls respectively, and side face and the bottom land of anti-return sealing ring 300 are brought into close contact, anti-return sealing ring
300 firmly install, good sealing effect.Meanwhile anti-return locating part 400 is when being pushed against on anti-return sealing ring 300, anti-return
The power increase that sealing ring 300 can be born, is hardly damaged, use is safer.
The making material of air inlet pipe 200 is unlimited, can use metal material, and corrosion resistance is strong, service life length, can be with
Adopt made of plastic, be easy to machine-shaping, low manufacture cost, be conveniently replaceable.
Embodiment 2
Fig. 7-Fig. 8 is referred to, the present embodiment also provides a kind of automatic closing appliance, and the present embodiment is the technology in embodiment one
Further improvement on the basis of scheme, the technical scheme that embodiment one has been described above are equally applicable to the present embodiment, in order to keep away
Exempt from narration and repeat burden, disclosed technical scheme no longer describes in detail embodiment one.
Specifically, the present embodiment is to fall on the basis of embodiment one for anti-return locating part 400 from air inlet pipe 200
Enter into retort the improvement carried out, gas handling system 100 also includes locating part, and locating part is installed in air inlet pipe 200, for limiting
Anti-return locating part 400 processed skids off air inlet pipe 200 towards the direction away from anti-return sealing ring 300, for example, in installation gas handling system
When 100, air inlet pipe 200 can only be vertically arranged in one direction, when misoperation, after air inlet pipe 200 is inverted, and anti-return limit
Position part 400 easily skids off out of air inlet pipe 200, is not easy to install.Therefore, locating part is set, effectively prevents the above situation.
Referring to Fig. 7, in an alternative of the embodiment, locating part is arranged to protuberance 500, and protuberance 500 is installed
In the inwall of air inlet pipe 200, inwall of the protuberance 500 along the radially inwardly projecting air inlet pipe 200 of air inlet pipe 200, anti-return limit
Position part 400 when anti-return locating part 400 slides, is raised portion 500 and kept off between anti-return sealing ring 300 and protuberance 500
Firmly, air inlet pipe 200 will not be skidded off.
Referring to Fig. 8, in another alternative of the embodiment, locating part is arranged to elastic component 600, elastic component 600
One end is connected to anti-return sealing ring 300, and the other end of elastic component 600 is connected to anti-return locating part 400, anti-return locating part
400 by elastic component 600 and the elastic connection of anti-return sealing ring 300, and elastic component 600 makes anti-return locating part 400 have direction
The trend that anti-return sealing ring 300 moves so that anti-return locating part 400 can be pushed against anti-return constantly at operating position
On sealing ring 300, anti-return effect is good, and elastic component 600 has deformability, and in supply, elastic component 600 stretches so that anti-
Backflow locating part 400 and interval at air inlet, are easy to the normal circulation of gas.Elastic component 600 can be spring or elastic band.
A kind of reaction unit embodiment is present embodiments provided, including retort and embodiment one or embodiment two carry
The automatic closing appliance of confession, retort have reaction chamber, and air inlet pipe 200 is installed on retort and connects reaction chamber, in retort
Waste gas be not easy to flow out out of air inlet pipe 200, use environmental protection.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of automatic closing appliance, it is characterised in that including gas handling system (100), the gas handling system (100) includes air inlet
Pipe (200), anti-return sealing ring (300) and anti-return locating part (400), the anti-return sealing ring (300) are arranged on institute
In the tube chamber for stating air inlet pipe (200), the anti-return sealing ring (300) has air admission hole (306), the air inlet pipe (200)
Both ends are connected by the air admission hole (306), and the anti-return locating part (400) is located in the air inlet pipe (200), described
Anti-return locating part (400) has operating position and off-position, wherein, the operating position refers to that the anti-return is spacing
Part (400) closes the air admission hole (306), and the off-position refers to that the anti-return locating part (400) is prevented back with described
Flow sealing ring (300) separately；The tube chamber of the air inlet pipe (200) is cylinder, and the anti-return sealing ring (300) is in disk
Shape, the outer peripheral face of the anti-return sealing ring (300) are sealedly attached to the inwall of the air inlet pipe (200)；The air admission hole
(306) hole is provided in round, the anti-return locating part (400) has sphere, and the diameter of the sphere is more than the air admission hole
(306) aperture.
2. automatic closing appliance according to claim 1, it is characterised in that the anti-return sealing ring (300) uses bullet
Property material is made.
3. automatic closing appliance according to claim 1, it is characterised in that the anti-return locating part (400) is steel ball,
The diameter of the steel ball is more than the aperture of the air admission hole (306).
4. automatic closing appliance according to claim 1, it is characterised in that the anti-return sealing ring (300) include into
Gas end (301) and outlet side (302), the anti-return locating part (400) are located at the outlet side of the anti-return sealing ring (300)
(302), the outlet side (302) end face corresponding with the anti-return sealing ring (300) is connected by circular conical surface (303), institute
The internal diameter for stating circular conical surface (303) is tapered towards the direction of the inlet end (301) by the outlet side (302).
5. automatic closing appliance according to claim 1, it is characterised in that the inwall of the air inlet pipe (200) is provided with
Annular groove (203), the groove depth direction of the annular groove (203) along the air inlet pipe (200) radially outward, the annular groove
(203) side face direction extension of the length direction along the air inlet pipe (200)；The anti-return sealing ring (300) is clamped on institute
State in annular groove (203).
6. automatic closing appliance according to claim 1, it is characterised in that the gas handling system (100) also includes spacing
Part, the locating part are installed in the air inlet pipe (200), for limiting the anti-return locating part (400) towards away from described
The direction of anti-return sealing ring (300) skids off the air inlet pipe (200).
7. automatic closing appliance according to claim 6, it is characterised in that the locating part is arranged to protuberance (500),
The protuberance (500) is installed on the inwall of the air inlet pipe (200), and the protuberance (500) is along the air inlet pipe (200)
The inwall of the radially inwardly projecting air inlet pipe (200), the anti-return locating part (400) are located at the anti-return sealing ring
(300) between the protuberance (500)；The locating part is arranged to elastic component (600), one end of the elastic component (600)
The anti-return sealing ring (300) is connected to, the other end of the elastic component (600) is connected to the anti-return locating part
(400), the elastic component (600) makes the anti-return locating part (400) have towards the anti-return sealing ring (300) and moved
Trend.
8. a kind of reaction unit, it is characterised in that including the self-closed dress described in retort and claim any one of 1-9
Put, the retort has reaction chamber, and the air inlet pipe (200) is installed on the retort and the connection reaction chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734072.2A CN107514493A (en) | 2017-08-24 | 2017-08-24 | A kind of automatic closing appliance and reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734072.2A CN107514493A (en) | 2017-08-24 | 2017-08-24 | A kind of automatic closing appliance and reaction unit |
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| Publication Number | Publication Date |
|---|---|
| CN107514493A true CN107514493A (en) | 2017-12-26 |
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|---|---|---|---|
| CN201710734072.2A Withdrawn CN107514493A (en) | 2017-08-24 | 2017-08-24 | A kind of automatic closing appliance and reaction unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421117A (en) * | 2018-03-30 | 2018-08-21 | 重庆市肿瘤研究所 | Rotary valve and Deep venou flusher including rotary valve |
| GB2586247A (en) * | 2019-08-13 | 2021-02-17 | Edwards Ltd | Non-return check valve for vacuum system |
-
2017
- 2017-08-24 CN CN201710734072.2A patent/CN107514493A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421117A (en) * | 2018-03-30 | 2018-08-21 | 重庆市肿瘤研究所 | Rotary valve and Deep venou flusher including rotary valve |
| CN108421117B (en) * | 2018-03-30 | 2022-02-11 | 重庆市肿瘤研究所 | Rotary valve and deep vein irrigation device comprising a rotary valve |
| GB2586247A (en) * | 2019-08-13 | 2021-02-17 | Edwards Ltd | Non-return check valve for vacuum system |
| WO2021028687A1 (en) * | 2019-08-13 | 2021-02-18 | Edwards Limited | Non-return check valve for vacuum system |
| CN114585838A (en) * | 2019-08-13 | 2022-06-03 | 爱德华兹有限公司 | One-way check valve for vacuum system |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171226 |
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| WW01 | Invention patent application withdrawn after publication |