CN105257869B

CN105257869B - The lotion gas generator fireproof tempering device of dual fail-safe mechanism

Info

Publication number: CN105257869B
Application number: CN201510639460.3A
Authority: CN
Inventors: 刘成浩; 封锋; 曹钦柳; 邹延兵
Original assignee: Nanjing University of Science and Technology
Current assignee: Nanjing University of Science and Technology
Priority date: 2015-09-30
Filing date: 2015-09-30
Publication date: 2018-01-05
Anticipated expiration: 2035-09-30
Also published as: CN105257869A

Abstract

The invention discloses a kind of a kind of lotion gas generator fireproof tempering device of dual fail-safe mechanism suitable for lotion gas generator, including active cutting-off controlling valve and lotion check valve, active cutting-off controlling valve to connect with lotion check valve；Active cutting-off controlling valve includes valve Box Cover, column valve body and valve casing, and lotion check valve includes adapting pipe, heat shield, spring fixing component, spring, heat-insulated fixing component, bushing, metal flow passage, conduit, heat-insulated runner and lotion cut-out component；The control of lotion one-way flow can be better achieved in the present invention, it is ineffective to solve the problems, such as that existing check valve is cut off to lotion, there is preferably cut-out effect, and have temperature barrier, it can be used in lotion gas generator, tempering phenomenon can be prevented to a certain extent.

Description

The lotion gas generator fireproof tempering device of dual fail-safe mechanism

Technical field

The invention belongs to control valve for fluids technical field, particularly a kind of lotion gas generator of dual fail-safe mechanism is prevented back Fiery device.

Background technology

The fluid non-return valve of prior art is mostly liquid non-return valve or cooling gas check valve, liquid or gas unidirectional valve arrangement Compact inner part is comparatively fine, and when fluid is lotion, existing fluid non-return valve can not work well, it may occur that cut The disconnected situation that has some setbacks or can not cut off, because lotion viscosity is larger, it is unfavorable for the work of valve inner small part, so very The rare check valve suitable for lotion flowing control, and lotion burns lotion gas generator outside check valve in the course of the work The cut-off of check valve off-position is finally burned to, so being easy to that tempering phenomenon occurs, existing fluid non-return valve structure is again All lack thermal protection mostly, and the cut-out effect to lotion is again bad, can not prevent fluid from occurring back in combustion Fire, therefore to solve the problems, such as that lotion safe transport is badly in need of a kind of unidirectional flow control valve suitable for lotion.

The content of the invention

It is an object of the invention to provide one kind safe transport lotion and lotion list is can guarantee that in lotion gas generator To circulation, the fluid non-return valve for preventing tempering phenomenon at the end of burning is not applied to solving existing fluid non-return valve technology The problem of controlling is flowed in lotion.

The technical solution for realizing the object of the invention is：

A kind of a kind of lotion gas generator anti-backfire of dual fail-safe mechanism suitable for lotion gas generator is invented Device, including active cutting-off controlling valve and lotion check valve, active cutting-off controlling valve are connected with lotion check valve；Actively cut-out control Valve processed includes valve Box Cover, column valve body and valve casing, and valve casing is fixed and connected with main pipeline, and column valve body is in valve There is the straight-line trajectory perpendicular to main pipeline axis in door casing, and the both ends of movement locus by valve cabinet wall and Valve Box Cover is spacing, and the passage perpendicular to column valve axis, the end face of column valve body and valve box are provided with column valve body Cavity between the inwall of body connects with the flow channel of lotion, and the cavity between the end face of valve Box Cover and column valve body leads to The perforate that valve casing covers is crossed to be in communication with the outside；Lotion check valve includes adapting pipe, heat shield, spring fixing component, bullet Spring, heat-insulated fixing component, bushing, metal flow passage, conduit, heat-insulated runner and lotion cut-out component, adapting pipe one end with Valve casing is fixed and connected, and the other end is connected with heat shield and conduit by flange arrangement successively, conduit it is another One end is connected with heat-insulated fixing component by flange arrangement, and spring fixing component is slided in conduit with conduit inwall Sealing coordinates, and is coaxially arranged with spring between spring fixing component and heat-insulated fixing component, lotion cut-out component, heat-insulated runner and Metal flow passage is sequentially coaxially set in spring fixing component, and lotion cut-out component and the inwall of spring fixing component are connected, and Lotion, which is cut off, the cone boss structure coordinated with adapting pipe perforate on the end face of component, the shaft shoulder quilt on heat-insulated runner end face Lotion cuts off component and the annular boss of spring fixing component inwall fastens in the axial direction, and the other end of heat-insulated runner is fixed with gold Belong to runner, be provided with lotion cut-out component, heat-insulated runner and metal flow passage through the valve element fluid passage of three, heat-insulated fixed structure The inwall of part is provided with bushing, and the shaft shoulder of metal flow passage and the inwall of bushing are slidingly sealed cooperation；Column valve body is in valve casing It is interior that there is the state for turning on and closing main pipeline and adapting pipe.

The present invention compared with prior art, its remarkable advantage：

The control of lotion one-way flow has been better achieved in the present invention, and it is ineffective to lotion cut-out to solve existing check valve The problem of, there is preferably cut-out effect, and have temperature barrier, can be used in lotion gas generator, certain Tempering phenomenon can be prevented in degree.

The present invention is described in further detail below in conjunction with the accompanying drawings.

Brief description of the drawings

Fig. 1 is the structural representation of the lotion gas generator fireproof tempering device of dual fail-safe mechanism of the present invention.

Embodiment

With reference to Fig. 1：

A kind of lotion gas generator fireproof tempering device of dual fail-safe mechanism of the present invention, including active cutting-off controlling valve and cream Body check valve, active cutting-off controlling valve are connected with lotion check valve；Active cutting-off controlling valve includes valve Box Cover 2, cylindrical valve Body 3 and valve casing 4, valve casing 4 are fixed and connected with main pipeline 1, column valve body 3 have in the valve casing 4 perpendicular to The straight-line trajectory of the axis of main pipeline 1, and it is spacing by the inwall of valve casing 4 and valve Box Cover 2 at the both ends of movement locus, The passage perpendicular to the axis of column valve body 3 is provided with column valve body 3, between the end face of column valve body 3 and the inwall of valve casing 4 Cavity connected with the flow channel of lotion, the cavity between the end face of valve Box Cover 2 and column valve body 3 passes through valve casing Perforate on lid 2 is in communication with the outside；Lotion check valve include adapting pipe 5, heat shield 6, spring fixing component 7, spring 8, every Heat fixation component 9, bushing 10, metal flow passage 11, conduit 12, heat-insulated runner 13 and lotion cut-out component 14, adapting pipe 5 One end is fixed and connected with valve casing 4, and the other end is connected with heat shield 6 and conduit 12 by flange arrangement successively, valve The other end of body pipeline 12 is connected with heat-insulated fixing component 9 by flange arrangement, spring fixing component 7 in the conduit 12 with The inwall of conduit 12 is slidingly sealed cooperation, and spring 8, cream are coaxially arranged between spring fixing component 7 and heat-insulated fixing component 9 Body cut-out component 14, heat-insulated runner 13 and metal flow passage 11 are sequentially coaxially set in spring fixing component 7, lotion cut-out component 14 are connected with the inwall of spring fixing component 7, and have the cone coordinated with the perforate of adapting pipe 5 on the end face of lotion cut-out component 14 Shape boss structure, the shaft shoulder on the heat-insulated end face of runner 13 are cut off the convex annular of component 14 and the inwall of spring fixing component 7 by lotion Platform fastens in the axial direction, and the other end of heat-insulated runner 13 is fixed with metal flow passage 11, lotion cut-out component 14, the and of heat-insulated runner 13 It is provided with metal flow passage 11 and the valve element fluid passage of three, the inwall of heat-insulated fixing component 9 is provided with bushing 10, metal stream The shaft shoulder in road 11 is slidingly sealed cooperation with the inwall of bushing 10；Column valve body 3 has conducting and closure master in valve casing 4 The state of pipeline 1 and adapting pipe 5.

Passage end opening on column valve body 3 is milled with plane.

The threaded connection hole that temperature sensor and pressure sensor are set is provided with the side wall of adapting pipe 5.

Lotion cut-out component 14 end face relative with heat shield 6 is circumferentially provided with the annular connected with valve element fluid passage and led Chute.

Igniter is provided with cavity between the end face of valve Box Cover 2 and column valve body 3.

The present invention operation principle be：

The lotion gas generator fireproof tempering device that lotion is entered dual fail-safe mechanism by ambient pressure promotes lotion cut-out structure Part 14 moves, and indirectly compresses spring 8 so that adapting pipe 5 and valve element fluid passage are unimpeded, (is consolidated so as to flow through valve element by spring Determine component 7, metal flow passage 11, heat-insulated runner 13 and lotion cut-out component 14 to form) 11 mouthfuls of the metal flow passage in outlet is reached, work as front When pressure is reduced to a certain extent, for the insufficient pressure of lotion so that spring 8 compresses, spring 8 drives lotion to cut off component 14 indirectly Initial position is moved back, so as to which adapting pipe 5 and valve element fluid passage disconnect, cuts off lotion so as to prevent in lotion combustion process The further transmission of flame, occur fortuitous event one-way flow device when being measured by temperature sensor and pressure sensor and occur back When fiery, active cutting-off controlling valve, which is started working, causes main pipeline 1 to be disconnected with adapting pipe 5, so as to terminate further tempering.

Specific works mode is that lotion flows through main pipeline 1, valve casing 4, column valve body 3, adapting pipe 5 until lotion is cut The cone boss of disconnected component 14, lotion cone boss is back-drived cause lotion cut off component 14, spring fixing component 7, every Hot flow path 13 and metal flow passage 11 are together moved so that spring 8 compresses, and adapting pipe 5 is opened to smooth with valve element fluid passage Logical, lotion is flowed through through lotion cut-out component 14, heat-insulated runner 13 and the valve element fluid passage of the three of metal flow passage 11 so as to arrive Up to operating position.

When lotion pressure, which is reduced to, to be not enough to compress on spring 8, the driving spring fixing component 7 of spring 8, lotion are cut Disconnected component 14, heat-insulated runner 13 and metal flow passage 11 move to initial position, and now adapting pipe 5 disconnects with valve element fluid passage Lotion is cut off, and the annular diversion trench of flame combustion to lotion cut-out component terminates burning.

When there is fortuitous event lotion flame combustion to 5 inside of adapting pipe, active cutting-off controlling valve is started working, valve Igniter detonation in cavity between door Box Cover 2 and the end face of column valve body 3 produces a large amount of gas-powered column valve bodies 3 Motion causes the cavity compression that column valve body 3 is formed with valve casing 4 until two planes are bonded, so as to column valve body cut-out lotion Flame is prevented further to transmit, so as to terminate tempering.

Embodiment：

A kind of lotion gas generator fireproof tempering device of dual fail-safe mechanism, including active cutting-off controlling valve and lotion it is unidirectional Valve, active cutting-off controlling valve are connected with lotion check valve；Active cutting-off controlling valve includes valve Box Cover 2, column valve body 3 and valve Door casing 4, valve casing 4 are fixed and connected with main pipeline 1, and column valve body 3 has perpendicular to main pipeline 1 in valve casing 4 The straight-line trajectory of axis, and the both ends of movement locus by the inwall of valve casing 4 and valve Box Cover 2 spacing, cylindrical valve The passage perpendicular to the axis of column valve body 3, the cavity between the end face of column valve body 3 and the inwall of valve casing 4 are provided with body 3 Connected with the flow channel of lotion, the cavity between the end face of valve Box Cover 2 and column valve body 3 passes through on valve Box Cover 2 Perforate be in communication with the outside；Lotion check valve includes adapting pipe 5, heat shield 6, spring fixing component 7, spring 8, heat-insulated fixation Component 9, bushing 10, metal flow passage 11, conduit 12, heat-insulated runner 13 and lotion cut-out component 14, the one end of adapting pipe 5 with Valve casing 4 is fixed and connected, and the other end is connected with heat shield 6 and conduit 12 by flange arrangement successively, conduit 12 other end is connected with heat-insulated fixing component 9 by flange arrangement, and spring fixing component 7 is in the conduit 12 and valve body tube The inwall of road 12 is slidingly sealed cooperation, and spring 8, lotion cut-out are coaxially arranged between spring fixing component 7 and heat-insulated fixing component 9 Component 14, heat-insulated runner 13 and metal flow passage 11 are sequentially coaxially set in spring fixing component 7, lotion cut-out component 14 and bullet The inwall of spring fixing component 7 is connected, and has the cone boss coordinated with the perforate of adapting pipe 5 on the end face of lotion cut-out component 14 Structure, the shaft shoulder on the heat-insulated end face of runner 13 cut off the annular boss of component 14 and the inwall of spring fixing component 7 in axle by lotion Fastening upwards, the other end of heat-insulated runner 13 are fixed with metal flow passage 11, lotion cut-out component 14, heat-insulated runner 13 and metal stream It is provided with road 11 and the valve element fluid passage of three, the inwall of heat-insulated fixing component 9 is provided with bushing 10, metal flow passage 11 The inwall of the shaft shoulder and bushing 10 is slidingly sealed cooperation；Column valve body 3 has in valve casing 4 turns on and closes main pipeline 1 With the state of adapting pipe 5.

Passage end opening on column valve body 3 is milled with plane.

Active cutting-off controlling valve is located at valve by column valve body 3 and valve casing 4 and valve Box Cover 2, column valve body 3 Inside casing 4, valve Box Cover 2 is fixed on valve casing 4, and a part of sky is left between valve Box Cover 2 and column valve body 3 Chamber, column valve body 3 can slide in the vertical direction of lotion flow direction, described column valve body 3 generally metal material cylinder Body, its cylinder is provided with through hole and circulated for lotion, in one end face milling flat of through hole.

Fluid passage is provided with inside valve casing 4, and can accommodate column valve body in flowing vertical direction allows its upper and lower Motion, conducting and the closure of flow channel are realized, both sides are provided with screwed hole and are connected with main pipeline 1 and adapting pipe 5, valve casing For lid 2 by being threadedly secured on valve casing, centre is provided with through hole, and it leaves cavity with the contact surface of column valve body 3.

Adapting pipe 5 is the cylindrical metal pipeline that there is flange arrangement one end, and the other end is external thread structure with actively cutting off Control valve connects, and its pipeline outer wall is provided with the connection screw thread hole of temperature sensor and pressure sensor, and it carries one end of flange Taper chamfering pipeline is carried with small-sized projection.

Heat shield 6, heat-insulated fixing component 9, heat-insulated runner 13 are process for the phenol aldehyde laminated cloth rod of resistance to ablation, and heat shield 6 is Annular shape, uniform 8 through holes of surrounding, a middle through hole can be connected with the small-sized projection of adapting pipe with taper chamfering pipeline； Heat-insulated fixing component 9 is the columnar component that both ends carry columnar step, and center is through hole, and external process has a ring through hole to be used for The connection of flange；Heat-insulated runner 13 is overall cylindrical, and the round platform rank that one end is machined with projection is used to fix, a middle uniform circle Through hole is provided among six through holes to be used for and the fastening of the bolt of metal flow passage.

Lotion cut-out component 14 be with cone head profile carry spill guiding gutter cylindric flow-guiding channel, mainly by Front end projection is engaged with the raised pipeline of adapting pipe, and its outside is connected with external screw thread with spring fixing component 7.

Spring fixing component 7 is metal material, cylindric, and inside is machined with concave station and internal thread is used to fix lotion cut-out Component and heat-insulated runner, outside can fixed springs.

Metal flow passage 11, bushing 10 form for metal material processing, and centre is provided with through hole for the spiral shell with heat-insulated runner 13 Bolt fastens；In a tubular form, one end is machined with positioning step to liner body.

Conduit 12 forms for metal material processing, double flange arrangement pipelines, for the fixation and protection to check valve Effect.

Claims

A kind of 1. lotion gas generator fireproof tempering device of dual fail-safe mechanism, it is characterised in that：Including active cutting-off controlling valve With lotion check valve, active cutting-off controlling valve is connected with lotion check valve；Active cutting-off controlling valve include valve Box Cover (2), Column valve body (3) and valve casing (4), valve casing (4) is fixed with main pipeline (1) and connects, and column valve body (3) is in valve box There is the straight-line trajectory perpendicular to main pipeline (1) axis in body (4), and at the both ends of movement locus by valve casing (4) Inwall and valve Box Cover (2) are spacing, and the passage perpendicular to column valve body (3) axis, column valve body are provided with column valve body (3) (3) cavity between end face and the inwall of valve casing (4) connects with the flow channel of lotion, valve Box Cover (2) and post Cavity between the end face of shape valve body (3) is in communication with the outside by the perforate on valve Box Cover (2)；Lotion check valve includes turning Adapter road (5), heat shield (6), spring fixing component (7), spring (8), heat-insulated fixing component (9), bushing (10), metal flow passage (11), conduit (12), heat-insulated runner (13) and lotion cut-out component (14), adapting pipe (5) one end and valve casing (4) Fixed and connection, the other end are connected with heat shield (6) and conduit (12) by flange arrangement successively, conduit (12) The other end is connected with heat-insulated fixing component (9) by flange arrangement, and spring fixing component (7) is in the conduit (12) and valve body Pipeline (12) inwall is slidingly sealed cooperation, and spring is coaxially arranged between spring fixing component (7) and heat-insulated fixing component (9) (8), lotion cut-out component (14), heat-insulated runner (13) and metal flow passage (11) are sequentially coaxially set in spring fixing component (7) Put, lotion cut-out component (14) is connected with the inwall of spring fixing component (7), and have on the end face of lotion cut-out component (14) and The cone boss structure that adapting pipe (5) perforate coordinates, the shaft shoulder on heat-insulated runner (13) end face cut off component (14) by lotion Fastened in the axial direction with the annular boss of spring fixing component (7) inwall, the other end of heat-insulated runner (13) is fixed with metal stream Road (11), the valve element fluid being provided with lotion cut-out component (14), heat-insulated runner (13) and metal flow passage (11) through three lead to Road, the inwall of heat-insulated fixing component (9) are provided with bushing (10), and the shaft shoulder of metal flow passage (11) slides with the inwall of bushing (10) Sealing coordinates；Column valve body (3) has the shape for turning on and closing main pipeline (1) and adapting pipe (5) in valve casing (4) State.
2. the lotion gas generator fireproof tempering device of dual fail-safe mechanism according to claim 1, it is characterised in that：It is described Passage end opening on column valve body (3) is milled with plane.
3. the lotion gas generator fireproof tempering device of dual fail-safe mechanism according to claim 1 or 2, it is characterised in that： The threaded connection hole that temperature sensor and pressure sensor are set is provided with the side wall of the adapting pipe (5).
4. the lotion gas generator fireproof tempering device of dual fail-safe mechanism according to claim 1 or 2, it is characterised in that： The lotion cut-out component (14) end face relative with heat shield (6) is circumferentially provided with the annular connected with valve element fluid passage and led Chute.
5. the lotion gas generator fireproof tempering device of dual fail-safe mechanism according to claim 3, it is characterised in that：It is described Lotion cut-out component (14) end face relative with heat shield (6) is circumferentially provided with the annular water conservancy diversion connected with valve element fluid passage Groove.
6. the lotion gas generator fireproof tempering device of the dual fail-safe mechanism according to claim 1 or 2 or 5, its feature exist In：Igniter is provided with cavity between the valve Box Cover (2) and the end face of column valve body (3).
7. the lotion gas generator fireproof tempering device of dual fail-safe mechanism according to claim 3, it is characterised in that：It is described Igniter is provided with cavity between the end face of valve Box Cover (2) and column valve body (3).
8. the lotion gas generator fireproof tempering device of dual fail-safe mechanism according to claim 4, it is characterised in that：It is described Igniter is provided with cavity between the end face of valve Box Cover (2) and column valve body (3).