CN207941307U - Vacuum pump oil gas knockout drum - Google Patents

Abstract

The utility model discloses vacuum pump oil gas knockout drums, including tank body, multiple stabilizer blades, ontology is equipped in tank body, discharge guiding pipe upper end extends outwardly after running through top of the tank, it is fixed with filter cylinder on the open end end face of ontology, it is closed by bottom cover filter cylinder lower end, primary strainer is equipped in filter cylinder, packing plate is equipped in primary strainer, circumferential along ontology is equipped with plate in a ring on its inner peripheral wall, secondary strainer is fixed on the inner peripheral wall of annular slab, in the lower surface of annular slab, and it is equipped with multiple changed course plates on the upper surface of packing plate, changed course plate on annular slab lower surface is staggered with the changed course plate on packing plate upper surface；It is equipped with through-hole at the middle part of bottom cover, air inlet pipe is connected to by through-hole with body interior after running through tank base.The utility model is reduced to the full extent by the mist of oil amount in discharge guiding pipe efflux gas, is focused on to efflux gas with facilitating by the multi-stage separation treatment to mixed gas.

Description

Vacuum pump oil gas knockout drum

Technical field

The utility model is related to chemical oxygen iodine laser vacuum systems, and in particular to vacuum pump oil gas knockout drum.

Background technology

Chemical laser is another kind of special gas laser, is a kind of energy using chemical reaction release come reality Now work the laser of population inversion (abbreviation population inversion).It chemically reacts the atom generated or molecule is often in Excitation state might have sufficient amount of atom or molecule be excited to some specific energy level, form grain under special circumstances Subnumber inverts, so that stimulated emission occur and light amplification being caused to act on.And chemical oxygen iodine laser can move the major part of air-flow It can restore and be changed into pressure.Complete to convert by diffuser, supersonic airstream by diffuser slow down, supercharging, complete from Supersonic speed is to subsonic transformation.But in use, chemical laser can be reacted and is generated when vacuum pump vacuumizes The corrosive raw materials such as chlorine, iodine or reactant are drawn into vacuum pump, and the corrosive raw materials such as chlorine, iodine or reactant are moving When can generate corrosion damage to the mist of oil separation equipment in vacuum pump, reduce Oil-gas Separation treatment effect, and outer row can be led to Gas in still carry the mist of oil of part, be unfavorable for the later stage to the processing containing the mixed gas such as chlorine or iodine.

Utility model content

The utility model aim is to provide vacuum pump oil gas knockout drum, reduces corrosion of the chlorine-containing gas to separator, Improve the separative efficiency of separator.

The utility model is achieved through the following technical solutions：

Vacuum pump oil gas knockout drum, including tank body and the multiple stabilizer blades for being fixed on tank base, set in tank base There are air inlet pipe and draining valve, be equipped with the ontology of tubular in the tank body, the upper end closed of the ontology and lower end opens is led Comb upper end is connected to through ontology upper end with body interior, and discharge guiding pipe upper end extends outwardly after running through top of the tank, at described The filter cylinder with Ontology Matching is fixed on the open end end face of body, and filter cylinder lower end is closed by bottom cover, along filter cylinder week To the primary strainer being equipped on its inner peripheral wall in a ring, packing plate is fixed on the inner peripheral wall of primary strainer, along institute It states the circumferential of ontology and is equipped with plate in a ring on its inner peripheral wall, secondary strainer is fixed on the inner peripheral wall of annular slab, and It is equipped with multiple changed course plates in a ring, the annular slab on the lower surface of the annular slab and the upper surface of packing plate Changed course plate on lower surface is staggered with the changed course plate on packing plate upper surface, and the filter opening mesh number of the filter cylinder is more than described The filter opening mesh number of primary strainer；Circumferential along the ontology is equipped with plate in a ring on its inner peripheral wall, in the bottom cover Portion is equipped with through-hole, and the air inlet pipe is connected to by through-hole with body interior after running through the tank base.For in the prior art, In chemical oxygen iodine laser in use, the corrosive raw materials such as chlorine, iodine that chemical laser reaction generates or reactant can be taken out It is drawn onto in vacuum pump, and the mixed gas containing chlorine and mist of oil is susceptible to the halfway situation of separation in processing, i.e., it is outer The a small amount of mist of oil of mixing is easy in the gas of row so that increase when handling efflux gas in the later stage treatment process steps and Difficulty, in this regard, applicant designs a kind of oil mist separator used dedicated for chemical oxygen iodine laser, by gaseous mixture The multi-stage separation treatment of body, reduces to the full extent by the mist of oil amount in discharge guiding pipe efflux gas, with facilitate to efflux gas into Row centralized processing, and any electric drive component is not provided under the hot environment of tank body, while reducing use cost, improve Arrange the separative efficiency of mixed gas in vacuum pump China and foreign countries；

When specifically used, air inlet pipe is connected to the output end of vacuum pump so that is produced in vacuum pump because chemical laser reacts The corrosive raw materials such as raw chlorine, iodine or reactant are drawn into ontology, at this point, sealing the upper center of filter cylinder due to insulating plate Every so that mixed gas is entered by through-hole in the region that cartridge sidewall is constituted with primary strainer, i.e., mixed gas is along filter The side wall of cylinder continues to move up after penetrating primary strainer, and since the filter opening mesh number of filter cylinder is more than the mesh of filter opening on primary strainer Number, i.e. mixed gas are much smaller than the gas flow by primary strainer along the amount of the outside loss of filter cylinder, and small part is through cartridge filter Before entering tank body, internal mist of oil can be stopped directly by filter cylinder and be gathered into oil the mixed gas being displaced outwardly afterwards Drop, and tank base is flow to along the outer wall of cartridge exine level-one bottom cover, and most mixed gas then pass through primary strainer into Enter to packing plate and annular slab between, and packing plate and annular slab between pass through multiple changed course plates formation one runner, the stream Road can be to stopping by the mixed gas of a primary filter, and mixed gas can be with each changed course plate in moving process Collide contact, and the mist of oil in mixed gas is then attached in collision process on the side wall of changed course plate, until by secondary Grade strainer enters ontology upper end, and the gases such as remaining chlorine or iodine then finally realize outer row by discharge guiding pipe, and in two-stage mistake Filter acts on the detour runner that lower and multiple changed course plates are constituted, and the mist of oil in mixed gas is converged into the full extent Drop, wherein the oil droplet formed on primary strainer is fallen under its gravity on the upper surface of bottom cover, it is then outside along filter cylinder It is spilled over to tank base, i.e., mixed gas is directly risen by packing plate in filtration cartridges by mobile pathway disruption, forced mixed Closing gas can only move up along the side wall of filter cylinder, and then increase the contact of mixed gas and cartridge sidewall and primary strainer Time so that the filter efficiency of filter cylinder and primary strainer maximizes；Further, the filter opening mesh number of secondary strainer is less than primary The mesh number of strainer increases the congregational rate to mist of oil in mixed gas；Also, in the epimere side wall of tank body, exhaust outlet is set, Transparent glass window is set in the stage casing side wall of tank body, to facilitate staff to observe the liquid level feelings of tank base in real time Condition, and can be exported in the gas for being partly deposited in tank interior by exhaust outlet when clearing up tank body, to prevent tank Internal air pressure is excessively high, it is ensured that filter cylinder keeps the congregational rate to mist of oil in mixed gas.

The outer diameter of the secondary strainer is less than the outer diameter of the packing plate.Further, the outer diameter of secondary strainer is less than envelope The outer diameter of partition board so that annular changed course plate setting number increases on packing plate, then increases the mixing by primary filter Mobile route and traveling time of the gas in runner so that the mist of oil increase in mixed gas is attached to the several of changed course plate surface Rate, while reducing the filtration load of secondary strainer.

The internal diameter more than the through-hole of the outer diameter of the packing plate.Further, the outer diameter for insulating plate is more than described lead to The internal diameter in hole so that packing plate will completely be blocked by the mixed gas escaped in through-hole, i.e., thoroughly blocks mixed gas along ontology The possibility that axis vertical moves up forces mixed gas to be moved towards the direction of cartridge sidewall, to realize increase mixed gas The purpose of residence time in filtration cartridges increases the probability that mixed gas is contacted with filter cylinder and primary strainer.

Spacing between the annular slab and packing plate is H, and the axial length of the changed course plate is L, and meets L ＜ H ＜ 2L.Preferably, mixed gas is entering to annular slab after primary strainer and is insulating in the region between plate, it is annular at this time Spacing between plate and packing plate directly influences the mist of oil treatment effect of mixed gas in the area, and as H ＜ L, it mixes The runner for closing gas is blocked, and as 2L ＜ H, it is excessive to insulate the width of flow path formed between plate and annular slab so that mixed gas Flow velocity accelerate, part mixed gas not with changed course plate be in contact, ontology upper end is directly entered by secondary strainer, i.e., The utilization ratio of changed course plate is low；Therefore, when meeting L ＜ H ＜ 2L, mixed gas can fully collide with changed course plate surface and connect It touches so that most of mist of oil in mixed gas is adhering completely on changed course plate side wall, and the small part mist of oil in mixed gas It then is gathered into drop in secondary strainer, it is final to fall after rise to the upper surface of packing plate.

The epimere outer diameter of the bottom cover successively decreases upward along the axis direction of the ontology, and bottom cover epimere and filter cylinder inner wall it Between form oil-recovery tank.Further, the mist of oil aggregation face being made of filter cylinder, primary strainer and secondary strainer can be in batches to mixed It closes gas to be filtered, and assembles the upper surface that the oil droplet formed finally can converge to bottom cover, then overflowed outward through filter cylinder, And after forming oil-recovery tank between bottom cover epimere and the inner wall of filter cylinder, the oil droplet of aggregation can be along inclined guide surface quickly from filter Cylinder bottom is overflowed, and is excessively moved into air inlet pipe along through-hole to avoid the oil droplet coalescence on bottom cover upper surface, is reduced primary The live load of strainer and secondary strainer.

Further include the baffle of through-hole described in face, the baffle is in truncated cone-shaped and its smaller diameter end and the primary filter Surface middle part connection off the net, there are spacing between the larger diameter end end face and the upper surface of the bottom cover of the baffle, described The forward projection of through-hole falls into the larger diameter end end face of baffle.Further, the baffle of setting and through-hole centering, and lead It is in truncated cone-shaped to flow block, and through-hole is completely covered for the projection of the larger diameter end end face of baffle so that, due to mixing for through-hole outflow It closes gas to alter course, that is, the side wall for forcing mixed gas towards filter cylinder moves, and after the obstruction by filter cylinder, mixed gas is divided into Two-way, flow is small to be moved after the filtering of cartridge filter into tank body all the way；And flow is big then moves straight up all the way, and Pass through primary strainer, secondary strainer successively, tank body is finally discharged by discharge guiding pipe, prevents mixed gas directly along side straight up To flowing, to realize the filter effect maximization of filter cylinder, primary strainer, secondary strainer.

The internal diameter of the through-hole axially from top to bottom successively decreases successively along it, and is set on its inner peripheral wall along the axial of through-hole There is spiral protrusion.Further, the internal diameter of through-hole is incremented by successively from top to bottom so that the flow area of mixed gas becomes suddenly Greatly, corresponding velocity of liquid assets reduces, and to reduce the direct impact to primary strainer, also, is equipped on the inner peripheral wall of through-hole Spiral protrusion, i.e., so that mixed gas forms a cyclone when flowing out through-hole, and under the influence of centrifugal force, mist of oil pools Oil droplet, directly by whipping to filter cylinder inner wall, and remaining mixed gas continue along direction straight up towards primary strainer with And secondary strainer movement, the live load of primary strainer and secondary strainer substantially reduces at this time, and passes through the gas in discharge guiding pipe The mist of oil amount contained substantially reduces, the convenient post-processing to efflux gas.

Further include with the matched guide shell of the filter cylinder, the guide shell is fixed on the lower face of the bottom cover, and is led The lower circumferential of flow cartridge is turned down towards the direction far from the body axis.Further, the fluid overflowed along filter cylinder bottom can edge The outer wall of bottom cover glides up to falling into tank body, and guide shell is installed on the profile sideline of the lower face of bottom cover, and guide shell Lower circumferential turn down outward, i.e., the lower face of bottom cover formed one circle shirt rim, the oil droplet on bottom cover outer wall can be led To, and then oil droplet is avoided to be attached to the lower face of bottom cover, bottom cover was caused with reducing the corrosive compound mixed in oil droplet Degree corrodes, and achievees the purpose that extend bottom cover service life.

The ontology uses plastic material.Preferably, ontology selects stainless steel or plastic material, and then reduce mixing The corrosive raw materials such as chlorine, iodine or reactant, which form ontology, in gas corrodes, to maintain ontology being used for a long time in tank body Service life.

The utility model compared with prior art, has the following advantages and advantages：

1, the utility model vacuum pump oil gas knockout drum, mixed gas are much smaller than along the amount of the outside loss of filter cylinder by just The gas flow of grade strainer, and the mixed gas that is moved outward after cartridge filter of small part is before entering tank body, internal Mist of oil can be stopped directly by filter cylinder and be gathered into oil droplet, and flow to tank base along the outer wall of cartridge exine level-one bottom cover, and Most mixed gas is then entered by primary strainer between packing plate and annular slab, and between packing plate and annular slab A runner is formed by multiple changed course plates, which can mix to being stopped by the mixed gas of a primary filter Gas can collide and contact with each changed course plate in moving process, and the mist of oil in mixed gas is then in collision process It is attached on the side wall of changed course plate, until entering ontology upper end by secondary strainer, the gases such as remaining chlorine or iodine are then Outer row is finally realized by discharge guiding pipe, and under double-filtration effect and detour runner that multiple changed course plates are constituted, gaseous mixture Mist of oil in body is converged into drop to the full extent；

2, the utility model vacuum pump oil gas knockout drum, the outer diameter of secondary strainer are less than the outer diameter of packing plate so that It insulates changed course plate setting number annular on plate to increase, then increases the movement by the mixed gas of primary filter in runner Path and traveling time so that the mist of oil increase in mixed gas is attached to the probability of changed course plate surface, while reducing secondary filter The filtration load of net；

3, the utility model vacuum pump oil gas knockout drum, when meeting L ＜ H ＜ 2L, mixed gas can fully with changed course Plate surface collides contact so that most of mist of oil in mixed gas is adhering completely on changed course plate side wall, and gaseous mixture Small part mist of oil in body is then gathered into drop in secondary strainer, final to fall after rise to the upper surface of packing plate.

Description of the drawings

Attached drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings：

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the internal structure schematic diagram of ontology.

Label and corresponding parts title in attached drawing：

1- tank bodies, 2- discharge guiding pipes, 3- ontologies, 4- air inlet pipe, 5- stabilizer blades, 6- observation windows, 7- draining valves, 8- filter cylinders, 9- are returned Oil groove, 10- guide shells, 11- bottom covers, 12- through-holes, 13- spiral protrusions, 14- annular slabs, 15- changed courses plate, 16- baffles, 17- Primary strainer, 18- grade strainer, 19- insulate plate.

Specific implementation mode

To make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached drawing, The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this Utility model is not intended to limit the scope of the present invention.

Embodiment 1

As depicted in figs. 1 and 2, the present embodiment includes tank body 1 and the multiple stabilizer blades 5 for being fixed on 1 bottom of tank body, in tank body 1 bottom is equipped with air inlet pipe 4 and draining valve 7, and the ontology 3 of tubular, the upper end closed of the ontology 3 are equipped in the tank body 1 And lower end opens, 2 upper end of discharge guiding pipe is connected to through 3 upper end of ontology with 3 inside of ontology, and 2 upper end of discharge guiding pipe is behind 1 top of tank body Extend outwardly, be fixed on the open end end face of the ontology 3 with 3 matched filter cylinder 8 of ontology, and 8 lower end of filter cylinder passes through Bottom cover 11 is closed, along the circumferential primary strainer 17 being equipped on its inner peripheral wall in a ring of the filter cylinder 8, in primary strainer 17 Packing plate 19 is fixed on inner peripheral wall, circumferential along the ontology 3 is equipped with plate 14 in a ring on its inner peripheral wall, in annular Secondary strainer 18 is fixed on the inner peripheral wall of plate 14, and in the lower surface of the annular slab 14 and the upper table of packing plate 19 Multiple changed course plates 15 in a ring are equipped on face, the changed course plate 15 on 14 lower surface of the annular slab and 19 upper surface of packing plate On changed course plate 15 be staggered, and the filter opening mesh number of the filter cylinder 8 is more than the filter opening mesh number of the primary strainer 17；Described in The circumferential of ontology 3 is equipped with plate 14 in a ring on its inner peripheral wall, and through-hole 12, the air inlet are equipped at the middle part of the bottom cover 11 Pipe 4, which runs through behind 1 bottom of the tank body, to be connected to by through-hole 12 with 3 inside of ontology.For in the prior art, in chemical oxygen iodine laser Device in use, the corrosive raw materials such as chlorine, iodine or reactant that chemical laser reaction generates can be sucked into vacuum pump, and Mixed gas containing chlorine and mist of oil is susceptible to the halfway situation of separation in processing, i.e., is easy in the outer gas arranged mixed Close a small amount of mist of oil so that increase treatment process steps and difficulty when handling efflux gas in the later stage, in this regard, applicant A kind of oil mist separator used dedicated for chemical oxygen iodine laser is designed, at the multi-stage separation to mixed gas Reason, reduces to the full extent by the mist of oil amount in 2 efflux gas of discharge guiding pipe, is focused on to efflux gas with facilitating, and It is not provided with any electric drive component under the hot environment of tank body 1, while reducing use cost, improves vacuum pump China and foreign countries and arranges The separative efficiency of mixed gas；

When specifically used, air inlet pipe 4 is connected to the output end of vacuum pump so that is produced in vacuum pump because chemical laser reacts The corrosive raw materials such as raw chlorine, iodine or reactant are drawn into ontology 3, at this point, since packing plate 19 will be in the upper end of filter cylinder 8 Portion insulates so that mixed gas is entered by through-hole 12 in the region that 8 side wall of filter cylinder is constituted with primary strainer 17, that is, is mixed Gas along filter cylinder 8 side wall through being continued to move up after primary strainer 17, and since the filter opening mesh number of filter cylinder 8 is more than primary filter The mesh number of filter opening on net 17, i.e. mixed gas are much smaller than the gas flow by primary strainer 17 along the amount of 8 outside loss of filter cylinder, and And the mixed gas that small part is displaced outwardly after cartridge filter 8, before entering tank body 1, internal mist of oil can be directly by filter cylinder 8 stop and are gathered into oil droplet, and flow to 1 bottom of tank body along the outer wall of 8 outer wall level-one bottom cover 11 of filter cylinder, and most mixing Gas is then entered by primary strainer 17 between packing plate 19 and annular slab 14, and is led between packing plate 19 and annular slab 14 It crosses multiple changed course plates 15 and forms a runner, which can mix to being stopped by the mixed gas of a primary filter Gas can collide with each changed course plate 15 in moving process and contact, and the mist of oil in mixed gas is then in collision process In be attached on the side wall of changed course plate 15, until by secondary strainer 18 entering 3 upper end of ontology, remaining chlorine or iodine etc. Gas then finally realizes outer row by discharge guiding pipe 2, and under double-filtration effect and detour stream that multiple changed course plates 15 are constituted Road, the mist of oil in mixed gas are converged into drop to the full extent, wherein the oil droplet formed on primary strainer 17 is in its gravity It is fallen under effect on the upper surface of bottom cover 11, is then spilled over to 1 bottom of tank body outward along filter cylinder 8, i.e., by filter cylinder 8 Mixed gas is directly risen mobile pathway disruption by packing plate 19, force mixed gas can only along filter cylinder 8 side wall to moving up It is dynamic, and then increase the time of contact of mixed gas and 8 side wall of filter cylinder and primary strainer 17 so that filter cylinder 8 and primary strainer 17 filter efficiency maximizes；Further, the filter opening mesh number of secondary strainer 18 is less than the mesh number of primary strainer 17, that is, increases To the congregational rate of mist of oil in mixed gas；Also, exhaust outlet is set in the epimere side wall of tank body 1, in the stage casing side wall of tank body 1 Transparent glass window 6 is set, to facilitate staff to observe the level condition of 1 bottom of tank body in real time, and to tank body 1 It can be exported in the gas being partly deposited in inside tank body 1 by exhaust outlet when being cleared up, to prevent the air pressure in tank body 1 It is high, it is ensured that filter cylinder 8 keeps the congregational rate to mist of oil in mixed gas.

Further, the outer diameter of secondary strainer 18 is less than the outer diameter of packing plate 19 so that annular on packing plate 19 to change Increase to the setting number of plate 15, when then increasing mobile route and the movement by the mixed gas of primary filter in runner Between so that the mist of oil increase in mixed gas is attached to the probability on 15 surface of changed course plate, while reducing the filtering of secondary strainer 18 Load.

Further, the outer diameter of packing plate 19 is more than the internal diameter of the through-hole 12 so that packing plate 19 will be by through-hole 12 The mixed gas of effusion is blocked completely, i.e., the possibility for thoroughly blocking mixed gas to be moved up along 3 axis vertical of ontology forces Mixed gas is moved towards the direction of 8 side wall of filter cylinder, to realize the purpose for increasing mixed gas residence time in filter cylinder 8, that is, is increased The probability for adding mixed gas to be contacted with filter cylinder 8 and primary strainer 17.

Preferably, mixed gas is entering to annular slab 14 after primary strainer 17 and is insulating the region between plate 19 Interior, the spacing between annular slab 14 and packing plate 19 directly influences the mist of oil processing of mixed gas in the area and imitates at this time Fruit, and as H ＜ L, the runner of mixed gas is blocked, and as 2L ＜ H, it is wide to insulate the runner formed between plate 19 and annular slab 14 It spends big so that the flow velocity of mixed gas is accelerated, and part mixed gas is not in contact then with changed course plate 15 directly by secondary Strainer 18 enters 3 upper end of ontology, that is, the utilization ratio for the plate 15 that alters course is low；Therefore, when meeting L ＜ H ＜ 2L, mixed gas can It fully collides and contacts with 15 surface of changed course plate so that most of mist of oil in mixed gas is adhering completely to 15 side of changed course plate On wall, and the small part mist of oil in mixed gas is then gathered into drop in secondary strainer 18, final to fall after rise to the upper table for insulating plate 19 On face.

The epimere outer diameter of the bottom cover 11 successively decreases upward along the axis direction of the ontology 3, and 11 epimere of bottom cover and filter cylinder 8 Oil-recovery tank 9 is formed between inner wall.Further, the mist of oil being made of filter cylinder 8, primary strainer 17 and secondary strainer 18 assembles face Mixed gas can be filtered in batches, and assemble the upper surface that the oil droplet formed finally can converge to bottom cover 11, then It is overflowed outward through filter cylinder 8, and after forming oil-recovery tank 9 between 11 epimere of bottom cover and the inner wall of filter cylinder 8, the oil droplet of aggregation can be along inclining Oblique guide surface is quickly overflowed from 8 bottom of filter cylinder, to avoid the oil droplet coalescence on 11 upper surface of bottom cover excessively and along through-hole 12 move into air inlet pipe 4, reduce the live load of primary strainer 17 and secondary strainer 18.

Embodiment 2

As depicted in figs. 1 and 2, the present embodiment further includes the baffle 16 of through-hole 12 described in face, and the baffle 16 is in Connect in the middle part of truncated cone-shaped and its smaller diameter end and 17 lower surface of the primary strainer, the larger diameter end end face of the baffle 16 and There are spacing, the forward projection of the through-hole 12 to fall into the larger diameter end end face of baffle 16 between the upper surface of the bottom cover 11 It is interior.Further, the baffle 16 of setting and 12 centering of through-hole, and baffle 16 is in truncated cone-shaped, and the major diameter of baffle 16 Through-hole 12 is completely covered for the projection of end end face so that, since the mixed gas that through-hole 12 flows out alters course, that is, force mixing The side wall of gas towards filter cylinder 8 moves, and after the obstruction by filter cylinder 8, mixed gas is divided into two-way, flow it is small all the way through filtering It is moved into tank body 1 after the filtering of cylinder 8；And flow is big then moves straight up all the way, and pass through primary strainer 17, secondary successively Grade strainer 18, is finally discharged tank body 1 by discharge guiding pipe 2, prevents mixed gas directly along direction flowing straight up, to realize filter The filter effect maximization of cylinder 8, primary strainer 17, secondary strainer 18.

Further, the internal diameter of through-hole 12 is incremented by successively from top to bottom so that and the flow area of mixed gas becomes larger suddenly, Corresponding velocity of liquid assets reduces, and to reduce the direct impact to primary strainer 17, also, is equipped on the inner peripheral wall of through-hole 12 Spiral protrusion 13, i.e., so that mixed gas forms a cyclone when flowing out through-hole 12, and under the influence of centrifugal force, mist of oil converges It is polymerized to oil droplet, directly by whipping to 8 inner wall of filter cylinder, and remaining mixed gas continues to filter towards primary along direction straight up Net 17 and secondary strainer 18 move, and the live load of primary strainer 17 and secondary strainer 18 substantially reduces at this time, and by leading The mist of oil amount that gas in comb 2 contains substantially reduces, the convenient post-processing to efflux gas.

Embodiment 3

As depicted in figs. 1 and 2, the present embodiment the present embodiment further include with 8 matched guide shell 10 of the filter cylinder, it is described to lead Flow cartridge 10 is fixed on the lower face of the bottom cover 11, and the lower circumferential of guide shell 10 is towards the side far from the ontology 3 axis To fold.The fluid overflowed along 8 bottom of filter cylinder can glide along the outer wall of bottom cover 11 up to falling into tank body 1, and in bottom cover 11 Guide shell 10 is installed, and the lower circumferential of guide shell 10 turns down outward on the profile sideline of lower face, i.e., in the lower end of bottom cover 11 Face forms a circle shirt rim, can be oriented to the oil droplet on 11 outer wall of bottom cover, and then oil droplet is avoided to be attached under bottom cover 11 Excessive erosion is caused in end face to reduce the corrosive compound mixed in oil droplet to bottom cover 11, reaches extension bottom cover 11 and uses the longevity The purpose of life.

Preferably, ontology 3 selects stainless steel or plastic material, and then reduce the corrosion such as chlorine, iodine in mixed gas Property raw material or reactant to ontology 3 formed corrode, to maintain ontology 3 to be used for a long time the service life in tank body 1.

Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (9)

1. vacuum pump oil gas knockout drum, including tank body (1) and the multiple stabilizer blades (5) for being fixed on tank body (1) bottom, in tank body (1) bottom is equipped with air inlet pipe (4) and draining valve (7), it is characterised in that：The ontology of tubular is equipped in the tank body (1) (3), the upper end closed of the ontology (3) and lower end opening, discharge guiding pipe (2) upper end are internal with ontology (3) through ontology (3) upper end Connection, discharge guiding pipe (2) upper end extend outwardly behind tank body (1) top, are fixed on the open end end face of the ontology (3) With ontology (3) matched filter cylinder (8), and filter cylinder (8) lower end is closed by bottom cover (11), circumferential at it along the filter cylinder (8) Inner peripheral wall is equipped with primary strainer (17) in a ring, and packing plate is fixed on the inner peripheral wall of primary strainer (17) (19), plate (14) in a ring, the inner peripheral wall in annular slab (14) are equipped on its inner peripheral wall along the circumferential of the ontology (3) On be fixed with secondary strainer (18), and be all provided on the lower surface of the annular slab (14) and the upper surface of packing plate (19) There are multiple changed course plates (15) in a ring, the changed course plate (15) on the annular slab (14) lower surface and packing plate (19) upper surface On changed course plate (15) be staggered, and the filter opening mesh number of the filter cylinder (8) is more than the filter opening mesh number of the primary strainer (17)； It is equipped with through-hole (12) at the middle part of the bottom cover (11), the air inlet pipe (4) passes through through-hole after running through the tank body (1) bottom (12) it is connected to ontology (3) inside.

2. vacuum pump oil gas knockout drum according to claim 1, it is characterised in that：The outer diameter of the secondary strainer (18) Less than the outer diameter of the packing plate (19).

3. vacuum pump oil gas knockout drum according to claim 1, it is characterised in that：The outer diameter of the packing plate (19) More than the internal diameter of the through-hole (12).

4. vacuum pump oil gas knockout drum according to claim 3, it is characterised in that：The annular slab (14) and packing plate (19) spacing between is H, and the axial length of the changed course plate (15) is L, and meets L ＜ H ＜ 2L.

5. vacuum pump oil gas knockout drum according to claim 1, it is characterised in that：The epimere outer diameter of the bottom cover (11) Axis direction along the ontology (3) successively decreases upward, and oil-recovery tank (9) is formed between bottom cover (11) epimere and filter cylinder (8) inner wall.

6. vacuum pump oil gas knockout drum according to claim 1, it is characterised in that：Further include through-hole described in face (12) Baffle (16), the baffle (16) connects in truncated cone-shaped and its smaller diameter end and primary strainer (17) lower surface middle part It connects, there are spacing, the through-holes between the larger diameter end end face and the upper surface of the bottom cover (11) of the baffle (16) (12) forward projection falls into the larger diameter end end face of baffle (16).

7. vacuum pump oil gas knockout drum according to claim 1, it is characterised in that：The internal diameter of the through-hole (12) is along it It is axial from top to bottom to successively decrease successively, and spiral protrusion (13) is equipped on its inner peripheral wall along the axial of through-hole (12).

8. the vacuum pump oil gas knockout drum according to claim 1~7 any one, it is characterised in that：Further include and institute Filter cylinder (8) matched guide shell (10) is stated, the guide shell (10) is fixed on the lower face of the bottom cover (11), and guide shell (10) lower circumferential is turned down towards the direction far from the ontology (3) axis.

9. vacuum pump oil gas knockout drum according to claim 8, it is characterised in that：The ontology (3) uses plastics material Matter.