Mute pressure release reaction kettle
Technical field
The present invention relates to a kind of reaction kettle, it is mute pressure release reaction kettle.
Background technology
In the preparation process of reaction kettle, the intermediate product of generation needs to be filled with inert gas conduct protection Entecavir,
The inert gas uses nitrogen more, since the intermediate product in reaction kettle can produce other certain gases in conversion,
Need to control air pressure in reaction kettle, anti-impervious liquid when being filled with nitrogen.
The gas of overvoltage to be released in time at the same time, ensure that internal pressure is appropriate, internal pressure is difficult to ensure that due to manually carrying out pressure release
Be stable at a numerical value, and it is high during internal pressure when it is low, the preparation for Entecavir has a great influence, and there are certain danger
Property.
Due in pressure leak process, high-speed flow can produce air and rub and vibrate through small holes or during gap, so that
Produce noise.
The content of the invention
The goal of the invention of the present invention is to solve the problems, such as that high-speed flow is producing noise through small holes or gap, there is provided
Mute pressure release reaction kettle, is increased the air-tightness of whole pressure relief device by tight mechanism, avoids gas from being leaked out from gap, generation is made an uproar
Sound.
In order to realize foregoing invention purpose, present invention employs following technical scheme:Mute pressure release reaction kettle, including autoclave body
And pressure relief device, the pressure relief device include pressure release barrel, valve casing, spool and the elastic component for valve core reset;Pressure release barrel
Bottom is equipped with the gas channel with being connected inside autoclave body, and the open top of pressure release barrel is set, and valve casing is arranged and is fixed on pressure release cylinder
Pars intramuralis, forms the gap that supply stream passes through between pressure release barrel and valve casing, pressure release barrel is equipped with silencing mechanism, the mute machine
Structure includes tight mechanism and multiple exhausting-gas holes for air-flow outflow, and the exhausting-gas hole is along pressure release barrel side wall circumferential direction annular array;
The tight mechanism includes sealing ring, and the tapered ring-type of the sealing ring, sealing ring is between pressure release barrel and valve casing, valve
Shell lower end compresses sealing ring, and in a tubular form, valve casing lower end is equipped with and sealing ring taper fit with the sealing ring place of compressing for valve casing lower end
Seal chamfering;Valve casing is internally provided with the cavity volume for the movement of spool reciprocal telescopic, and elastic component and spool are respectively positioned in cavity volume, the appearance
Chamber side wall is equipped with the valve opening connected with gap, and the position limiting structure for preventing that spool from deviating from is additionally provided with the cavity volume.
Preferably, the bottom of the sealing ring is additionally provided with horizontal washer, and the thickness of the horizontal washer is more than sealing ring thickness
Degree.
Preferably, the closure gasket groove being embedded for sealing ring is equipped with the pressure release barrel, the sealing ring is embedded at sealing
In annular groove, the tapered ring-type of closure gasket groove.
Preferably, the sealing ring and horizontal washer are embedded in closure gasket groove.
Preferably, the close annular groove in top is additionally provided with the top of the pressure release barrel, the close annular groove in top is located at pressure release barrel inner wall, institute
State and be additionally provided with valve casing for fixed top Mi Quan in the fixation bulge loop in the close annular groove in top.
Preferably, the inner wall of the valve casing outer wall and pressure release barrel is connected through a screw thread.
Preferably, the exhausting-gas hole annularly arranges and along pressure release barrel axle center array in pressure release barrel side wall.
Preferably, the position limiting structure is bulge loop, and the bulge loop is fixed on the inner wall surface of valve casing.
Compared with prior art, the mute pressure release reaction kettle of above-mentioned technical proposal is employed, is had the advantages that:
First, mute pressure release reaction kettle using the present invention, the spool in pressure relief device can be jacked up by air pressure, when spool quilt
When high pressure jacks up, valve opening is opened, and the gas channel in valve casing is connected with gap, gap so that by the gas released from exhaust
Shed in hole.
Since elastic component can be controlled spool, and it is controlled using elastic component, therefore when internal pressure is slightly larger
When elastic pressure, valve opening can be opened, and reaction kettle internal high pressure quickly be carried out pressure release, when internal pressure is less than elastic pressure
When, spool sets back and closes valve opening, reaches the effect of pressure control voltage stabilizing.
2nd, secondly by multiple thickly dotted exhausting-gas holes are added on pressure release barrel 3, the gas velocity at exhausting-gas hole is reduced
Degree, eliminates fricative phenomenon, reduces noise, makes production environment more quiet.
3rd, tight mechanism is used to seal the joint gap between pressure release barrel and valve casing, reduces the noise that gas leakage produces.
Brief description of the drawings
Fig. 1 is the structure diagram of the mute pressure release reaction kettle embodiment of the present invention;
Fig. 2 is the structure diagram of pressure relief device in the present invention;
Fig. 3 is the sectional view (valve opening closed mode) of pressure relief device in the present invention;
Fig. 4 is the sectional view (valve opening opening) of pressure relief device in the present invention;
Fig. 5 is the sectional view of valve casing in the present invention;
Fig. 6 is the sectional view of pressure release barrel in the present invention;
Fig. 7 is the structure diagram of sealing ring in the present invention;
Fig. 8 is the sectional view of sealing ring in the present invention.
Reference numeral:1st, valve casing;10th, valve opening;11st, straight slot;110th, guide groove;12nd, external screw thread;13rd, bulge loop;2nd, spool;
20th, lead;3rd, pressure release barrel;30th, gap;31st, exhausting-gas hole;32nd, internal thread;41st, Mi Quan is pushed up;42nd, sealing ring;420th, it is horizontal
Packing ring.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
Mute pressure release reaction kettle as shown in Fig. 1 to Fig. 8, including autoclave body and pressure relief device A, pressure relief device A include pressure release barrel
3rd, valve casing 1, spool 2 and the elastic component resetted for spool 2;
3 bottom of pressure release barrel is equipped with the gas channel with being connected inside autoclave body, and 3 open top of pressure release barrel is set, valve casing 1
It is arranged and is fixed on inside pressure release barrel 3, the gap 30 that supply stream passes through, pressure release barrel is formed between pressure release barrel 3 and valve casing 1
3 are equipped with multiple exhausting-gas holes 31 for air-flow outflow, and exhausting-gas hole 31 is along 3 side wall circumferential direction annular array of pressure release barrel.
Spool in pressure relief device can be jacked up by air pressure, and when spool is jacked up by high pressure, valve opening is opened, by valve casing
Gas channel is connected with gap, gap and then the gas released sheds out of exhausting-gas hole.
Since elastic component can be controlled spool, and it is controlled using elastic component, therefore when internal pressure is slightly larger
When elastic pressure, valve opening can be opened, and reaction kettle internal high pressure quickly be carried out pressure release, when internal pressure is less than elastic pressure
When, spool sets back and closes valve opening, reaches the effect of pressure control voltage stabilizing.
Exhausting-gas hole 31 annularly arranges and along 3 axle center array of pressure release barrel in 3 side wall of pressure release barrel.Since high-speed flow exists
Through small holes or during gap, it can produce air and rub and vibrate, so as to produce noise.Therefore, the present embodiment passes through in pressure release
Multiple thickly dotted exhausting-gas holes are added on barrel 3, eliminate fricative phenomenon, noise is reduced, makes production environment more quiet.
1 outer wall of valve casing and the inner wall of pressure release barrel 3 are connected through a screw thread.3 inner wall of pressure release barrel is equipped with internal thread, valve casing 1
Outer wall is equipped with external screw thread, and external screw thread is engaged with internal thread.Tightened by screw thread, valve casing 1 is rigidly secured to pressure release barrel 3
It is interior.
Tight mechanism includes sealing ring 42, the tapered ring-type of sealing ring 42, and sealing ring 42 is located at pressure release barrel 3 and valve casing
Between 1,1 lower end of valve casing compresses sealing ring 42, and in a tubular form, 1 lower end of valve casing is equipped with and sealing 1 lower end of valve casing with the sealing ring place of compressing
Enclose the sealing chamfering 15 of taper fit.
The effect of tight mechanism is the air-tightness for increasing pressure relief device, all air-flows is arranged out of pressure release exhausting-gas hole
Go out, avoid air-flow from producing noise by gap.The taper of sealing ring 42 coordinates with sealing chamfering 15, can increase the face of sealing
Product, improves leakproofness, and the horizontal and vertical leakproofness that can obtain can be caused to strengthen.
The bottom of sealing ring 42 is additionally provided with horizontal washer 420, and the thickness of horizontal washer 420 is more than 42 thickness of sealing ring, water
Plain washer is integrally formed with sealing ring.Due to valve casing be threaded into tighten when, downward pressure is larger, adds horizontal pad successively
Circle 420 can effectively compress valve casing bottom, and more preferable utilization, the thickness of horizontal washer 420 are played in the effect of tightening to valve casing
It is thicker, it is to deal with compressing when valve casing is tightened, it is therefore desirable to which thicker thickness is used for deformable seal.
The closure gasket groove 34 being embedded for sealing ring is equipped with pressure release barrel 3, sealing ring 42 and horizontal washer 420 are embedded at
In closure gasket groove 34,34 tapered ring-type of closure gasket groove.
The effect of closure gasket groove 34 is when sealing ring 42 and horizontal washer 420 are by valve casing crimp, can be complete
It is full live whole closure gasket groove 34, make the area bigger of contact, effectively improve sealing performance.Secondly, closure gasket groove 34 can
To play good fixation to sealing ring and horizontal washer, prevent valve casing turn during sealing ring and horizontal washer run
Partially.
The top of pressure release barrel 3 is additionally provided with the close annular groove 33 in top, pushes up and the close circle 41 in top is embedded with close annular groove 33, push up close annular groove 33
Mi Quan is pushed up in the fixation bulge loop 14 in the close annular groove in top for fixing in being additionally provided with 3 inner wall of pressure release barrel, valve casing 1.
In the present embodiment, valve casing, there are the local except bottom of gap, also has top, therefore top remains unchanged with pressure release barrel
Need to add sealing structure.
The close annular groove 33 in top is added on the side wall of pressure release barrel, pushes up and the close circle 41 in top is placed in close annular groove 33, pushing up close circle 41 is
Usual endless sealing ring, when valve casing is tightened, the fixation bulge loop 14 of valve casing outer wall can will push up close circle 33 and be held out against, and prevent from pushing up
Close circle 33 comes off or deviates.
Valve casing 1 is internally provided with the cavity volume 11 for the movement of 2 reciprocal telescopic of spool, and spring and spool 2 are respectively positioned in cavity volume 11, holds
11 side wall of chamber is equipped with the valve opening 10 connected with gap 30, and 11 inner wall surface of cavity volume is additionally provided with bulge loop 13.The effect of bulge loop 13 is,
Spool can play a spacing effect when returning in situ by spring top, prevent spool from deviating from cavity volume, cause control valve to lose
Effect.
Spool 2 includes lead 20, and lead 20 is arranged on the top of spool 2, and spool 2 is assumed a " convex " shape, set in cavity volume 11
There is the guide groove 110 being embedded in for lead 20, return unit is spring, and spring pocket is arranged on 20 side wall of lead.
Lead 20 shares two functions:First, be for keep spool slide when direction, ensure spool being capable of edge
The axis direction of valve casing is slided, and prevents from deviating, and avoids misplacing;Secondly, for being arranged for spring, a limit is played to spring
Position effect, prevents spring from shifting in use.
Due to pressure release barrel 3 with valve casing 1 when docking, still there are many places gap, thus pressure release barrel 3 and valve casing 1 it
Between be additionally provided with the top sealing ring 41 and bottom sealing ring 42 for preventing gas leakage.The effect of sealing ring is that it is possible to cooperation and lets out at two
Pressure cylinder wall 3 and the tightening effect of valve casing 1, by the pushing of valve casing 1 by sealing ring card jail tightly in gap, raising tightness,
Avoid air-flow from being overflowed out of gap, noise occurs.
Above is the preferred embodiment of the present invention, does not depart from original of the invention for those of ordinary skill in the art
On the premise of reason, some variations and modifications can also be made, these also should be regarded as protection scope of the present invention.