CN104056501B - Snap ring locking caulking groove natural gas filter easy to clean - Google Patents

Abstract

A kind of snap ring locking caulking groove natural gas filter easy to clean, belongs to filter technical field.Comprise cylindrical shell, blind plate, one group of filtration core, snap ring manual-operating mechanism, feature: establish snap ring holding tank on blind plate, expansion slot is established at the circumferencial direction of snap ring, blind plate forms lock dog chamber, snap ring manual-operating mechanism comprises snap ring upper port connecting screw rod, snap ring lower port connecting screw rod, towing plate, transition towing plate, operating grip, lock dog, lock dog alignment pin, lock dog alignment pin operating grip and towing plate limit base, blind plate is established screw limiting chute, the wall body of towing plate limit base or blind plate side establishes pressure release response means, blind plate mating interface establishes lancing door, lancing door is equipped with sealing screw.Advantage: avoided natural gas to external leakage; Avoid hidden danger; Convenient making and assembling; Ensure inspection safety; Shorten cleaning time and save Clean-medium, alleviate working strength and ensure cleaning effect.

Description

Snap ring locking caulking groove natural gas filter easy to clean

Technical field

The invention belongs to filter technical field, be specifically related to a kind of snap ring locking caulking groove natural gas filter easy to clean.

Background technology

Owing to containing the liquid of solid particle polluter and trace in natural gas, therefore usually on natural gas transport pipeline, filter is arranged, natural gas after being filtered could meet pure requirement, otherwise can result of use be affected, more precisely affect combustion efficiency, such as, when natural gas is as the civilian burning energy, if purity level is poor, so easily cause gas utensil blocking and carbon deposit etc., and when commercial Application, then there is the anxiety undermining burner.

Natural gas filter has vertical and horizontal two kinds, vertical natural gas filter is as Chinese patent CN2513654Y(natural gas filter), CN2621795Y(Multifunctional gas filter), CN2743014Y(fast opening type pipe line filter), CN2787288Y(natural gas precise filter) and CN100535501C(natural gas filter), etc.Vertical natural gas filter has the little strong point that namely floor space is little that takes up room for Horizontal natural gas filter, but inspection is such as changed filtration core etc. and is comparatively bothered, Horizontal natural gas filter thinking highly of comparatively by industry in view of this, technical information about Horizontal natural gas filter can be seen in equally in disclosed Chinese patent literature, as CN2474207Y(cartridge type natural gas, < coal gas > filter), CN201040223Y(natural gas mercury-removing filter), CN201394401Y(natural gas filter) and the Authorization Notice No. that proposed by the applicant be CN102559314B(Horizontal natural gas filter), etc..

No matter be vertical or Horizontal natural gas filter is all furnished with lid (lid is called " blind plate " by industry usually, as follows), when natural gas filter to use after a period of time such as according to the pressure reduction changing condition on inlet, outlet pipeline need to the filter replacement be arranged in cylindrical shell (also claiming tank body) or clean time, blind plate need be opened, otherwise blind plate and cylindrical shell are sealed and matched, aforementioned invention Authorization Notice No. CN102559314B can be referred to this.

Can carry boat just as water again can the reason of capsized boat, natural gas can be provided convenience for people's daily life and industrial and agricultural production etc., but be also attended by danger, therefore the installation of supplying sector to the filter be arranged on natural gas transport pipeline as natural air-air source is attached great importance to, especially very harsh to the technical requirement of the blind plate for matching with cylindrical shell, specifically at least show as the following aspects; One, the accent position of blind plate and the cylindrical shell hub position of cylindrical shell (namely with) must have excellent sealing, to avoid leaking; They are two years old, when blind plate is coordinated with the accent position of cylindrical shell, can guarantee that the position, edge of blind plate and cylindrical shell are with the effect integral locking as Tenon, occur with the dangerous situation of the cylindrical shell that occurs that blind plate leaves (also can claim to escape) under avoiding the pressure of the natural gas in cylindrical shell; Its three, to blind plate open or close easy to operate.

Can be seen in disclosed Chinese patent literature about blind plate is same with the technical information matched in the accent position of cylindrical shell, typically as application for a patent for invention publication No. CN101737622A recommendation has " lock-ring safety quick open blind plate ", although this patent application scheme is when blind plate (patent claims door closure) and the accent (patent application claims accent to be hub) of cylindrical shell are closed, sealing process is played by blind plate, but because snap ring-type lock ring does not have Telescopic, thus the effect of the overall positive lock with cylinder chamber port part is not produced, and due to needs configuration cross bearer, thus not only complex structure, and make whole blind plate seem too fat to move, and close or open operation trouble, and for example Authorization Notice No. CN203614730U provides " a kind of fast opening blind of easy access ", this patent formula is shortcoming for aforementioned CN101737622A and the improvement proposed, it arranges the breach enclosed around blind plate one, breach is stamped pressing plate, the groove (specifically can see the 0002nd section and 0008 section, the description of this patent) holding lock ring is formed by pressing plate coordinates with breach, although this patent formula can embody the technique effect that the 0011st section to 0013 section, its description is concluded to a certain extent, but because macrostructure is still identical with CN101737622A, thus there is the shortcoming of aforementioned CN101737622A equally.

More typical " lock band embedded quick-opening blind plate " disclosed as application for a patent for invention publication number CN101038060A, this patent formula provides a connecting rod tightener, can embody and the integral locking effect at accent position (see 2nd section reciprocal of Instructions Page 2) when blind plate coordinates with the accent of cylindrical shell.The structure of connecting rod tightener is: fixed by the circumferencial direction of seven pieces of keel screw assemblies around tapered metallic elastic steel ring, and fix a hinge support the two ends of tapered metallic elastic steel ring are each, between two hinge supports, connect a connecting rod, and one of them hinge support in two hinge supports is arranged a hole pendulum.When also rotating clockwise with handle (patent claims boosting-rod) patchhole pendulum, by connecting rod, tapered metallic elastic steel ring is expanded outwardly, drive seven pieces of keel to be embedded in the groove of the accent of cylindrical shell by tapered metallic elastic steel ring simultaneously, blind plate is integrally coordinated with cylindrical shell, otherwise with example.Can see Fig. 4 of the description embodiment the 2nd section of this patent application (Instructions Page 3 reciprocal 2nd section) and the 5th page, description last two sections and this patent to this.Thus known, CN101038060A can eliminate aforementioned CN101737622A and CN203614730U can not with the shortcoming of the groove integral locking at the accent place of cylindrical shell.

But above-mentioned CN101038060A still exists following shortcoming: one, with regard to manufacture, because needs make separately seven pieces of independently keel, thus make efficiency is low, although the structure of seven pieces of keel is identical, its two, with regard to assembling, owing to need seven pieces of keel around the circumferencial direction screw assembly of tapered metallic elastic steel ring, by piece fixing, thus assembling and comparatively bother, they are three years old, because seven pieces of keel are for carrier with tapered metallic elastic steel ring, namely tapered metallic elastic steel ring is the transition member of seven pieces of keel, again because the motion of seven pieces of keel is ensured with inwardly shrinking by expanding outwardly of tapered metallic elastic steel ring, thus directly seven pieces of integral locking effects between keel and cylindrical shell can be affected when tired and even distortion appear in the tapered metallic elastic steel ring with spring leaf effect, they are four years old, with regard to the overall structure of connecting bar locking device, because namely the opening that need be the tapered metallic elastic steel ring of C font in shape respectively fixes a hinge support in the mode be welded and fixed at its two ends, and a hinge support is arranged a hole pendulum wherein, hole pendulum is made up of a transition brace and afterburning pole socket, the provided at one of transition brace is connected on one of them hinge support in two hinge supports, the other end and connecting rod one end hinged, and another hinge support in the other end of connecting rod and two hinge supports is hinged, afterburning pole socket is fixed on the middle part of transition brace, therefore the two ends of tapered metallic elastic steel ring are connected comparatively complicated, they are five years old, with regard to security during daily inspection, due to when there is the natural gas do not drained in cylindrical shell, namely when the cylinder chamber of cylindrical shell is in the state of not fully emptying, because there is pressure in cylindrical shell, if in order to when that is one group of filtration core cleans or changes and blindly open blind cover (cover) to the filter in cylinder chamber, then very easily cause serious security incident, they are six years old, with regard to clean, in order to ensure the effect that the snap ring (this patent application claims keel) on blind plate locks mutually with the snap ring locking caulking groove on the blind plate mating interface of cylindrical shell, thus need regularly or aperiodically to clean snap ring locking groove, use and remove the dirt of productive set in snap ring locking groove, but owing to not having for implementing clean structure member to snap ring locking caulking groove on blind plate mating interface, thus clean and extremely bother, be embodied in following 4 points: one is that cleaning time is tediously long, two are cleaning mediums as compressed air or water consumption large, three is that the labour intensity of cleanup crew is large, four is that cleaning effect is difficult to ensure.

For above-mentioned prior art, be necessary to be improved, the applicant has done useful design for this reason, finally defines technical scheme described below, and take under secrecy provision the application laboratory made simulated test, result proves practicable.

Summary of the invention

Task of the present invention be to provide a kind of contribute to the opening ensureing blind plate and cylindrical shell sealing and use and avoid leaking, be conducive to making the opening integral locking of the edge of the circumferencial direction of blind plate and cylindrical shell and using the pressure of the natural gas reliably born in the cylinder chamber of cylindrical shell and avoid hidden danger to occur, be of value to that to embody structure terse and use convenient manufacture with assembling and processing ease, there is the security be convenient to when fully ensureing inspection and use and avoid having an accident and contribute to implement clean to snap ring locking caulking groove easily and use shortening cleaning time, save Clean-medium, reduce the labour intensity of cleanup crew and ensure the snap ring locking caulking groove natural gas filter easy to clean of desirable cleaning effect.

Task of the present invention has been come like this, a kind of snap ring locking caulking groove natural gas filter easy to clean, comprise in use with the cylindrical shell that horizontally-arranged state is arranged, a separator disc is provided with in the cylinder chamber of this cylindrical shell, by this separator disc, cylinder chamber is divided into outlet chamber and filter chamber, and on the outlet chamber wall of outlet chamber, connect an interface of giving vent to anger for being drawn by the natural gas after being filtered by filter chamber, and on the filter chamber wall of filter chamber and towards on side connect one for the natural gas that will await filtering and introduce the intake interface of filter chamber, a blind plate mating interface is configured with on cylindrical shell and corresponding to the opening of described filter chamber, a blind plate sealing chamber and a snap ring locking caulking groove is configured with on the inwall of this blind plate mating interface and around the circumferencial direction of blind plate mating interface, wherein: blind plate sealing chamber is positioned at the left side of snap ring locking caulking groove, a collector tube is equipped in the bottom of the length direction of cylindrical shell, this collector tube to be connected with cylindrical shell by changeover joint and to communicate with described outlet chamber and filter chamber simultaneously, the bottom of this collector tube is provided with sewage draining exit, sewage draining exit is furnished with blowoff valve, one blind plate, this blind plate is pivotally connected with blind plate mating interface and match with blind plate mating interface, this blind plate is provided with a blind plate sealing circle and a snap ring around the circumferencial direction of blind plate, blind plate sealing circle and described blind plate sealing chamber are sealed and matched, and snap ring matches with described snap ring locking caulking groove, one group of filtration core, this group filtration core is arranged in described filter chamber with horizontally-arranged state, and the filtration core chamber of this group filtration core communicates with described outlet chamber, the one snap ring manual-operating mechanism entering or exit described snap ring locking caulking groove for ordering about described snap ring, this snap ring manual-operating mechanism is arranged on described blind plate back to the side of described one group of filtration core and is connected with snap ring, be characterised in that: on described blind plate, offer a snap ring holding tank in the position corresponding to described snap ring around the circumferencial direction of blind plate, described snap ring matches with this snap ring holding tank, and offer expansion slot at the circumferencial direction of snap ring with space state, a lock dog chamber is configured with on blind plate and corresponding to the position of described snap ring manual-operating mechanism, described snap ring manual-operating mechanism comprises snap ring upper port connecting screw rod, snap ring lower port connecting screw rod, towing plate, transition towing plate, operating grip, lock dog, lock dog alignment pin, lock dog alignment pin operating grip and towing plate limit base, the snap ring upper port of snap ring upper port connecting screw rod and snap ring is fixed, and the snap ring lower port of snap ring lower port connecting screw rod and snap ring is fixed, towing plate is configured with one first towing plate arm and one second towing plate arm, first towing plate arm hub setting is on the first towing plate arm bearing pin, and this first towing plate arm bearing pin is fixed on described blind plate, second towing plate arm is connected on described snap ring lower port connecting screw rod, one end of transition towing plate is connected with described snap ring upper port connecting screw rod, middle part is configured with an operating grip socket, the other end is connected on described first towing plate arm bearing pin, operating grip plugs with operating grip socket and coordinates, lock dog to be arranged in described lock dog chamber and to correspond on described snap ring, between lower port, this lock dog is configured with a lock dog defining arm, this lock dog defining arm offers a lock dog and limits arm aperture, lock dog alignment pin limits arm aperture through lock dog and is threaded with the lock dog alignment pin screw be opened on blind plate, lock dog alignment pin operating grip plugs with lock dog alignment pin and coordinates, towing plate limit base is fixed on the side of blind plate back to filter chamber, this towing plate limit base is configured with a towing plate limit base chamber, described towing plate and transition towing plate are insinuated in towing plate limit base chamber, wherein: on described blind plate and corresponding to the position of snap ring lower port connecting screw rod, offer a screw limiting chute, snap ring lower port connecting screw rod is through this screw limiting chute, one is provided with for the locking of described lock dog alignment pin or the pressure release response means that unlocks on described towing plate limit base or on the wall body of blind plate back to the side of described filter chamber, this pressure release response means communicates with filter chamber and matches with lock dog alignment pin, described blind plate mating interface offers lancing door around the circumferencial direction of blind plate mating interface and corresponding to the position of described snap ring locking caulking groove with space state, lancing door communicates with snap ring locking caulking groove, and on lancing door, be equipped with sealing screw.

In a specific embodiment of the present invention, the outer wall of described blind plate mating interface is positioned at side and is extended with a pair door-hinge hinged support seat, self correspondence of this opposite house pivot hinge supporting base, and pivot is provided with a door-hinge hinge between this opposite house pivot hinge supporting base, be fixed with a pair blind plate axle bed at described blind plate back to the side of described filtration core, this pair blind plate axle bed self corresponding and with door-hinge chain connection.

In another specific embodiment of the present invention, described door-hinge hinge comprises hinge chain sheet fixed axis and a pair hinge chain sheet, this a pair hinge chain sheet is separately fixed at the two ends of hinge chain sheet fixed axis, and a hinge chain bobbin is respectively configured with in one end of this pair hinge chain sheet, hinge chain bobbin is bearing on hinge chain sheet axle bed rotationally, and hinge chain sheet axle bed is fixed on described door-hinge hinged support seat, a hinge chain sheet axis hole is respectively offered at the other end of a pair hinge chain sheet, hinge chain sheet axis hole is equipped a hinge chain sheet bearing pin, a pair described blind plate axle bed and hinge chain sheet pinned connection.

In another specific embodiment of the present invention, described blind plate offers a blind plate sealing ring recess in the position corresponding to described blind plate sealing circle around the circumferencial direction of blind plate, and blind plate sealing circle is embedded in this blind plate sealing ring recess.

In another specific embodiment of the present invention, described pressure release response means comprises emptying responsive valves and emptying response pipe, emptying responsive valves is arranged on described towing plate limit base or is arranged on the side of described blind plate back to described filter chamber, the end of the spool of this emptying responsive valves matches with described lock dog alignment pin, one end of emptying response pipe be arranged on blind plate and respond pipe joint with the emptying that filter chamber communicates and be connected, and the other end of emptying response pipe is connected with emptying responsive valves and communicates with the valve pocket of emptying responsive valves, when the pressure of described filter chamber is zero, described spool removes the locking to lock dog alignment pin, and when filter chamber internal memory is at pressure, spool locks described lock dog alignment pin.

Also have in a specific embodiment of the present invention, on described lock dog alignment pin and around the circumferencial direction of lock dog alignment pin, be configured with a spool be recessed in the surface of lock dog alignment pin insert recessed channel, the end of described spool probes into recessed channel with this spool and matches.

More of the present invention and in a specific embodiment, the degree of depth of described snap ring holding tank adapts with the height of described snap ring, and the width of snap ring holding tank adapts with the thickness of snap ring, and the global shape of described snap ring is C font.

In an of the present invention and then specific embodiment, on the described first towing plate arm of described towing plate and corresponding to the position of described first towing plate arm bearing pin, offer one first towing plate arm pivoting hole, this first towing plate arm pivoting hole is nested with on the first towing plate arm bearing pin, one second towing plate arm pivoting hole is offered on described second towing plate arm and corresponding to the position of described snap ring lower port connecting screw rod, this the second towing plate arm pivoting hole is nested with on snap ring lower port connecting screw rod, and is limited by the nut that limits be configured on snap ring lower port connecting screw rod, a First Transition towing plate pivoting hole is offered in one end of described transition towing plate and corresponding to the position of described snap ring upper port connecting screw rod, this First Transition towing plate pivoting hole to be nested with on snap ring upper port connecting screw rod and to be limited by the stop nut screwed on snap ring upper port connecting screw rod, described transition towing plate the other end and offer one second transition towing plate pivoting hole corresponding to the position of described first towing plate arm bearing pin, this the second transition towing plate pivoting hole to be nested with on the first towing plate arm bearing pin and to be limited by the restriction nut screwed on the first towing plate arm bearing pin.

Of the present invention again more and in a specific embodiment, the shape of described towing plate is door font; The shape of described transition towing plate is L-shaped.

In an again of the present invention and then specific embodiment, the length in described lock dog chamber and width adapt with the length of described lock dog and width.

Technical scheme provided by the invention has following technique effect relative to prior art: one, is sealed and matched and natural gas in filter chamber can be avoided to external leakage by blind plate sealing circle and blind plate sealing chamber; They are two years old, the snap ring locking caulking groove integral locking inside the edge of the circumferencial direction of blind plate and the blind plate mating interface of cylindrical shell is made by the snap ring be arranged in snap ring holding tank, thus blind plate can be made reliably to bear the pressure of the natural gas in the cylinder chamber of cylindrical shell, avoid hidden danger; Its three, due to snap ring and the structure for the snap ring manual-operating mechanism ordering about snap ring activity significantly terse, thus not only conveniently can to make and assemble, and processing ease; Its four, owing to being provided with pressure release response means on towing plate limit base or blind plate, by pressure release response means, lock dog alignment pin is controlled, thus can ensure inspection safety, stop accident occur; They are five years old, owing to having offered the lancing door communicated with snap ring locking caulking groove on blind plate mating interface and corresponding to the position of snap ring locking caulking groove, thus can fast and easily implement clean to snap ring locking caulking groove, cleaning time can be shortened and save Clean-medium, the cleaning intensity of workman can be alleviated again and ensure cleaning effect.

Accompanying drawing explanation

Fig. 1 is embodiments of the invention structure chart.

Fig. 2 is the overall structure schematic diagram of Fig. 1.

Fig. 3 is the detailed structure view of the snap ring shown in Fig. 1.

Fig. 4 is schematic diagram when blind plate being opened to the operation of snap ring manual-operating mechanism relative to the blind plate mating interface of cylindrical shell.

Fig. 5 is schematic diagram when blind plate being closed to the operation of snap ring manual-operating mechanism relative to the blind plate mating interface of cylindrical shell.

Detailed description of the invention

In order to enable the auditor of Patent Office especially the public clearly understand technical spirit of the present invention and beneficial effect, applicant will elaborate below by way of example, but be not all the restriction to the present invention program to the description of embodiment, any conceive according to the present invention done be only pro forma but not substantial equivalent transformation and all should be considered as technical scheme category of the present invention.

Everyly in the following description relate to upper and lower, left and right, the concept of directionality (or claim directionality) of front and rear is all for the location status residing for the figure be described, object is to facilitate public understanding, thus can not be understood as being particularly limited to technical scheme provided by the invention.

Refer to Fig. 1 and Fig. 2, figure 2 illustrates cylindrical shell 1(and also can be called tank body, as follows) overall picture, this cylindrical shell 1 is arranged on the terrace of field of employment by support foot 15 with horizontally-arranged state in use, in the cylinder chamber of this cylindrical shell 1, be provided with a separator disc 11, by this separator disc 11, the length direction of cylinder chamber be divided into outlet chamber 12 and filter chamber 13.In the present embodiment, outlet chamber 12 is positioned at the left side of separator disc 11, and filter chamber 13 is positioned at the right side of separator disc 11.Namely on the left chamber wall of outlet chamber 12, connected the interface 121(Fig. 2 that gives vent to anger show at the left end position of outlet chamber 12), by this interface 121 of giving vent to anger, the natural gas after being filtered by one group of filtration core 3 in filter chamber 13 is drawn.On the filter chamber wall of filter chamber 13 and towards on side connect one for the natural gas awaiting filtering being introduced the intake interface 131 that filter chamber 13 filters for filtration core 3.

Aforementioned cylindrical shell 1 the bottom of length direction configure a collector tube 16(and also can claim liquid collecting tank, as follows), the top of this collector tube 16 is connected with cylindrical shell 1 by changeover joint 161, and communicate with cylinder chamber, namely communicate with outlet chamber 12 and filter chamber 13 simultaneously, and sewage draining exit 162 is set in the bottom of collector tube 16, blowdown interface 162 arranges valve (not shown).

Please see Fig. 1 by emphasis, namely aforementioned cylindrical shell 1 is corresponding to the right-hand member of location status shown in Fig. 1 at the opening corresponding to filter chamber 13 or claiming the position on right side being configured with a blind plate mating interface 14(in industry, usually blind plate mating interface 14 is called " hub "), on the inwall of this blind plate mating interface 14 and around the circumferencial direction of blind plate mating interface, be configured with a step-like blind plate sealing chamber 141 and a snap ring locking caulking groove 142.As shown in Figure 1, blind plate sealing chamber 141 is positioned at the left side of snap ring locking caulking groove 142, and that is snap ring locking caulking groove 142 is positioned at the right side in blind plate sealing chamber 141.Certainly, snap ring locking caulking groove 142 is depressed in the inner wall surface of blind plate mating interface 14, forms the structure that shape of cross section is the channel-like of U-shaped.

Give a blind plate 2, this blind plate 2 is essentially cover, pivotally connected with blind plate mating interface 14 and match with blind plate mating interface 14, and the concept matched with blind plate mating interface 14 alleged here refers to be closed blind plate mating interface 14 or opens.Blind plate 2 is provided with blind plate sealing circle 21 and a snap ring 22 around the circumferencial direction of blind plate 2, when blind plate 2 is in the state to blind plate mating interface 14 is closed, blind plate sealing circle 21 and aforementioned blind plate sealing chamber 141 are sealed and matched, and snap ring 22 matches with snap ring locking caulking groove 142.

Give one group of filtration core 3, this group filtration core 3 is arranged in filter chamber 13 with horizontally-arranged state, and according to professional general knowledge, the filtration core chamber of this group filtration core 3 communicates with aforementioned outlet chamber 12.Give the snap ring manual-operating mechanism 4 that entered for ordering about aforementioned snap ring 22 or exit snap ring locking caulking groove 142, this snap ring manual-operating mechanism 4 is arranged on blind plate 2 and is namely arranged on blind plate 2 back to the side of filtration core 3 and is also namely arranged on the wall body of blind plate 2 side toward the outside in a state of use back to the side of filter chamber 13.

Ask for an interview Fig. 3 and still composition graphs 1, technical essential as technical scheme provided by the invention: offer the logical snap ring holding tank 23 of one ring around the circumferencial direction of blind plate 2 on aforesaid blind plate 2 and in the position corresponding to snap ring 22, snap ring 22 matches with this snap ring holding tank 23, and offer expansion slot 221 at the circumferencial direction of snap ring 22 with space state, each expansion slot 221 extends towards the center position of snap ring 2 from the outer surface of snap ring 22, but can not the width of through snap ring 2, otherwise snap ring 22 can be isolated into fritter and lose use (cannot use) one by one, snap ring 2 is made to form spring effect by expansion slot 221.A lock dog chamber 25 is configured with on blind plate 2 and corresponding to the position of aforementioned snap ring manual-operating mechanism 4.

Continue to see Fig. 1, aforementioned snap ring manual-operating mechanism 4 preferably but not the structure be definitely limited to is as follows: comprise snap ring upper port connecting screw rod 41, snap ring lower port connecting screw rod 42, towing plate 43, transition towing plate 44, operating grip 45, lock dog 46, lock dog alignment pin 47, lock dog alignment pin operating grip 48 and towing plate limit base 49, snap ring upper port connecting screw rod 41 is fixed with the snap ring upper port 222 of snap ring 2, and snap ring lower port connecting screw rod 42 and the snap ring lower port 223 of snap ring 2 are fixed, snap ring upper port 222 and snap ring lower port 223 correspond to aforementioned lock dog chamber 25, towing plate 43 is configured with one first towing plate arm 431 and one second towing plate arm 432, first towing plate arm 431 hub setting is on the first towing plate arm bearing pin 4311, and this first towing plate arm bearing pin 4311 is fixed on blind plate 2, namely blind plate 2 side is toward the outside fixed on, second towing plate arm 432 is connected on snap ring lower port connecting screw rod 42, one end of transition towing plate 44 is connected with aforementioned snap ring upper port connecting screw rod 41, middle part is configured with an operating grip socket 441, the other end is connected on aforementioned first towing plate arm bearing pin 4311, operating grip 45 plugs with operating grip socket 441 and coordinates, lock dog 46 to be arranged in aforementioned lock dog chamber 25 and to correspond on described snap ring, lower port 222, between 223, this lock dog 46 is configured with a lock dog defining arm 461, this lock dog defining arm 461 offers a lock dog and limits arm aperture 4611, lock dog alignment pin 47 limits arm aperture 4611 through lock dog and is threaded with the lock dog alignment pin screw 26 be opened on blind plate 2, lock dog alignment pin operating grip 48 plugs with lock dog alignment pin 47 and coordinates, as shown in Figure 1, lock dog locating slot 47 offers a hole 472, lock dog alignment pin operating grip 48 plugs with this hole 472 and coordinates, towing plate limit base 49 is fixed on the side of blind plate 2 back to filter chamber 13, namely blind plate 2 side is toward the outside fixed on, this towing plate limit base 49 is configured with a towing plate limit base chamber 491, aforementioned towing plate 43 and transition towing plate 44 are insinuated in towing plate limit base chamber 491, wherein: on aforementioned blind plate 2 and corresponding to the position of aforementioned snap ring lower port connecting screw rod 42, offer a screw limiting chute 29, snap ring lower port connecting screw rod 42 is through this screw limiting chute 29.

Preferably, the outer wall of aforesaid blind plate mating interface 14 is positioned at side and is extended with a pair door-hinge hinged support seat 143, self correspondence of this opposite house pivot hinge supporting base 143, and pivot is provided with a door-hinge hinge 5 between this opposite house pivot hinge supporting base 143, namely be fixed with a pair blind plate axle bed 27 back to the side blind plate axle bed screw 271 of filter chamber 13 at aforementioned blind plate 2 back to filtration core 3, self is corresponding and pivotally connected with door-hinge hinge 5 for this pair blind plate axle bed 27.

Aforesaid door-hinge hinge 5 comprises hinge chain sheet fixed axis 51 and a pair hinge chain sheet 52, this a pair hinge chain sheet 52 is separately fixed at the two ends of hinge chain sheet fixed axis 51, and a hinge chain bobbin 521 is respectively configured with in one end of this pair hinge chain sheet 52, hinge chain bobbin 521 is bearing on hinge chain sheet axle bed 5211 rotationally, and hinge chain sheet axle bed 5211 is fixed on aforementioned door-hinge hinged support seat 143, a hinge chain sheet axis hole 522 is respectively offered at the other end of a pair hinge chain sheet 52, hinge chain sheet axis hole 522 is equipped a hinge chain sheet bearing pin 5221, aforesaid a pair blind plate axle bed 27 is connected with hinge chain sheet bearing pin 5221, specifically: on blind plate axle bed 27, be configured with a hinge chain sheet bearing pin mating holes 272, hinge chain sheet bearing pin 5221 is supported in hinge chain sheet bearing pin mating holes 272, and limited by the dog screw 273 be disposed on blind plate axle bed 27.

Aforesaid blind plate 2 offers a blind plate sealing ring recess 28 in the position corresponding to aforementioned blind plate sealing circle 21 around the circumferencial direction of blind plate 2, and blind plate sealing circle 21 is embedded in this blind plate sealing ring recess 28.Specifically, to be positioned at blind plate 2 with blind plate sealing chamber 141 corresponding towards the side of filter chamber 13 for blind plate sealing ring recess 28.In the present embodiment, blind plate sealing circle 21 adopts rubber ring.

As preferred scheme, the degree of depth of aforesaid snap ring holding tank 23 and the height of snap ring 22 adapt, and the height of snap ring 22 said here refers to from the surface of snap ring 22 side toward the outside to snap ring 22 towards the distance the surface of interior side; The width of snap ring holding tank 23 and the thickness of snap ring 22 adapt, and the thickness of snap ring 22 alleged is here for location status shown in Fig. 3, the distance between the left surface of snap ring 22 to right flank.

Shown in Fig. 1 and Fig. 3, the global shape of snap ring 22 is the C font of English alphabet, and make snap ring 22 have two end points by this shape, these two end points are aforesaid snap ring upper port 222 and snap ring lower port 223.

As shown in Figure 1, on the first towing plate arm 431 of aforementioned towing plate 43 and corresponding to the position of the first towing plate arm bearing pin 4311, offer one first towing plate arm pivoting hole 4312, this first towing plate arm pivoting hole 4312 is nested with on the first towing plate arm bearing pin 4311, one second towing plate arm pivoting hole 4321 is offered on aforementioned second towing plate arm 432 and corresponding to the position of described snap ring lower port connecting screw rod 42, this the second towing plate arm pivoting hole 4321 is nested with on snap ring lower port connecting screw rod 42, and is limited by the nut 421 that limits be configured in thread fiting mode on snap ring lower port connecting screw rod 42, a First Transition towing plate pivoting hole 442 is offered in one end of foregoing transition towing plate 44 and corresponding to the position of snap ring upper port connecting screw rod 41, this First Transition towing plate pivoting hole 442 to be nested with on snap ring upper port connecting screw rod 41 and to be limited by the stop nut 411 screwed with thread fiting mode on snap ring upper port connecting screw rod 41, transition towing plate 44 the other end and offer one second transition towing plate pivoting hole 443 corresponding to the position of the first towing plate arm bearing pin 4311, this the second transition towing plate pivoting hole 443 to be nested with on the first towing plate arm bearing pin 4311 and to be limited by the restriction nut 43111 screwed with thread fiting mode on the first towing plate arm bearing pin 4311.

Shown in Fig. 1, the shape of aforementioned towing plate 43 is door font, and the shape of foregoing transition towing plate 44 is L-shaped.In addition, the length in above mentioned lock dog chamber 25 and the length of width and lock dog 46 and width adapt, and the length of distance between upper and lower snap ring port 222,223 and lock dog 46 adapts.

If open blind plate 2 under there is the pressure state produced by natural gas in the cylinder chamber of cylindrical shell 1, so certainly be attended by potential safety hazard, that is open blind plate 2 when the natural gas only needed in the cylinder chamber of cylindrical shell 1 is tending towards draining could fully ensure safety, according in this factor, the pressure release response means 6 that applicant recommends to have to belong to safety device category.

In the present embodiment, above mentioned pressure release response means 6 is arranged on aforesaid towing plate limit base 49, but also can be set directly at blind plate 2 back to filter chamber 13 i.e. side toward the outside, be played with aforementioned coordinating of lock dog alignment pin 47 effect that lock dog alignment pin 47 is locked or unlocked by this pressure release response means 6.

In the present embodiment, aforementioned pressure release response means 6 comprises emptying responsive valves 61 and emptying response pipe 62, emptying responsive valves 61 is fixed on valve seat 612, and valve seat 612 is fixedly being located on aforementioned towing plate limit base 49 with valve seat hold-down screw 6121 corresponding to the position being preset in the valve seat fixing threaded hole 492 that towing plate limits on seat 49, the spool chamber that the end of the spool 611 of this emptying responsive valves 61 leans out emptying responsive valves 61 matches with aforementioned lock dog alignment pin 47, one end of emptying response pipe 62 be arranged on blind plate 2 and respond pipe joint 621 with the emptying that filter chamber 13 communicates and be connected, and the other end of emptying response pipe 62 is connected with emptying responsive valves 61 and communicates with the valve pocket of emptying responsive valves 61.When the pressure of aforementioned filter chamber 13 is zero, spool 611 to the spool chamber intrinsic displacement of emptying responsive valves 61, thus removes the locking to lock dog alignment pin 47, and when there is pressure in filter chamber 13, spool 611 is in lock dog alignment pin 47 lock-out state.

In FIG, show and be formed on lock dog alignment pin 47 and probe into recessed channel 471 around the spool that the circumferencial direction of lock dog alignment pin 47 is offered, this spool probes into the surface be recessed in lock dog alignment pin 47 of recessed channel 471, forms the shape of neck.When there is pressure in the cylinder chamber of cylindrical shell 1, end due to spool 611 corresponds to spool and probes into recessed channel 471, thus lock dog alignment pin 47 cannot exit from aforesaid lock dog alignment pin screw 26, lock dog alignment pin 47 is made to remain the connecting state with aforementioned lock dog 46, lock dog alignment pin 47 is namely made to be in finite-state to lock dog 46, lock dog just cannot be got from aforesaid lock dog chamber 25, snap ring manual-operating mechanism 4 cannot operate snap ring 22, snap ring is made to be in snap ring locking caulking groove 142 all the time, blind plate 2 just can not be opened, otherwise with example.It can thus be appreciated that, can only under abundant safing state be cylindrical shell 1 cylinder chamber in just opened blind plate 2 when there is not gas pressure, stop the generation of contingency.

The emptying responsive valves 61 of aforementioned pressure release response means 6 preferably use by produced by permanent valve member Co., Ltd of Jiangsu Province, China Changshu City and be YJ-A-7 safety valve in the model of market sale before the application proposes.

In order to fully ensure that snap ring 22 is able to the lasting fiting effect with snap ring locking caulking groove 142, thus on aforementioned blind plate mating interface 14, with space state, lancing door 144 is being offered in the position of snap ring locking caulking groove 142 to point around the circumferencial direction of blind plate mating interface 14, lancing door 144 communicates with snap ring locking groove 142, and is equipped with sealing screw 1441 on lancing door 144.

Through use after a while, in snap ring locking caulking groove 142, stiffly productive set has dirt foreign material unavoidably, therefore when cleaning snap ring locking caulking groove 142, as long as whiz sealing screw 1441, with the valve be connected with compressed air gas source device pipeline or similar tools for alignment lancing door 144 gas injection, thus dirt foreign material can be expelled in snap ring locking groove 142.Certainly pressure hydraulic giant also can be used to aim at lancing door 144 and to inject water under high pressure, by high pressure water flushing except the dirt foreign material accumulated in snap ring locking groove 142.

Refer to Fig. 4 and Fig. 5 and composition graphs 1 to Fig. 3, when will to filtration core 3 inspection in foregoing filtration chamber 13 or change time, first (not shown by the atmospheric valve on cylindrical shell 1, but can be understood by the reading to Chinese invention patent CN102559314B) emptying, pressure is there is not in cylinder chamber due to cylindrical shell 1, namely exist without natural gas in filter chamber 13, therefore emptying response pipe 62 is interior without pressure, the spool 611 of emptying responsive valves 61 probes in recessed channel 471 from the spool of lock dog alignment pin 47 and exits, and removes the locking to lock dog alignment pin 47.Operated by lock dog alignment pin operating grip 48 pairs of lock dog alignment pins 47 by operating personnel, it is made to exit from lock dog alignment pin screw 26, and lock dog 46 is moved apart in lock dog chamber 25, then by operator by operating grip 45 update handle socket 441, and by operating grip 45 switching counterclockwise (namely applying active force counterclockwise), one end due to the transition towing plate 44 of snap ring manual-operating mechanism 4 is nested with on snap ring upper port connecting screw rod 41, the other end is nested with on the first towing plate arm bearing pin 4311, again because the first towing plate arm 431 of towing plate 43 is enclosed within the first towing plate arm bearing pin 4311, second towing plate arm 432 of towing plate 43 is enclosed within snap ring lower port connecting screw rod 42, also due on snap ring, lower port connecting screw rod 41, 42 are separately fixed on the snap ring of snap ring 22, lower port 222, on 223, therefore when operating grip 45 is to counterclockwise movement, drive snap ring upper port 222 to bottom offset by snap ring upper port connecting screw rod 41, snap ring 22 shrinks and exits from snap ring locking caulking groove 142, and to snap ring holding tank 23 intrinsic displacement, just blind plate 2 can be opened towards the direction deviating from blind plate mating interface 14 in this condition, operating grip 45 is now in location status as shown in Figure 4, operator just can carry out inspection or replacing to the filtration core 3 in filter chamber 13.

When to filtration core 3 inspection or after more having changed jobs, so by aforementioned contrary course of action, until make snap ring 22 integrally be embedded in snap ring locking caulking groove 142, operating grip 45 is in the location status illustrated by Fig. 5.Lock dog 46 is positioned at lock dog chamber 25, and lock dog alignment pin 47 is back to the state be connected with lock dog alignment pin screw 26.When there is natural gas in the cylinder chamber of cylindrical shell 1, namely when the filtration core 3 in cylindrical shell 1 is in the state to the filtration of natural gas, the spool 611 of pressure release response means 6 to lean out and the spool corresponding to lock dog alignment pin 47 probes in recessed channel 471 to spool chamber.

In sum, technical scheme provided by the invention overcomes the shortcoming in prior art, successfully completes invention task, embodies the technique effect referred in the superincumbent technique effect hurdle of applicant objectively, and can yet be regarded as is a good technical scheme.

Claims (10)

1. a kind of snap ring locking caulking groove natural gas filter easy to clean, comprise the cylindrical shell (1) arranging with horizontally-arranged state in use, a separator disc (11) is provided with in the cylinder chamber of this cylindrical shell (1), by this separator disc (11), cylinder chamber is divided into outlet chamber (12) and filter chamber (13), and on the outlet chamber wall of outlet chamber (12), connect one for by the natural gas interface of giving vent to anger (121) of drawing after being filtered by filter chamber (13), and on the filter chamber wall of filter chamber (13) and towards upper side, connect one for the natural gas that awaits filtering is introduced to the intake interface (131) of filter chamber (13), above and at the opening that corresponds to described filter chamber (13) form at cylindrical shell (1) and have a blind plate mating interface (14), a blind plate sealing chamber (141) and a snap ring locking caulking groove (142) is had on the inwall of this blind plate mating interface (14) and around the circumferencial direction formation of blind plate mating interface (14), wherein: blind plate sealing chamber (141) are positioned at the left side of snap ring locking caulking groove (142), a collector tube (16) is equipped with in the bottom of the length direction of cylindrical shell (1), this collector tube (16) is connected with cylindrical shell (1) by changeover joint (161) and communicates with described outlet chamber (12) and filter chamber (13) simultaneously, the bottom of this collector tube (16) is provided with sewage draining exit (162), sewage draining exit (162) is furnished with blowoff valve, one blind plate (2), this blind plate (2) is pivotally connected with blind plate mating interface (14) and match with blind plate mating interface (14), circumferencial direction around blind plate (2) on this blind plate (2) is provided with a blind plate sealing circle (21) and a snap ring (22), blind plate sealing circle (21) is sealed and matched with described blind plate sealing chamber (141), and snap ring (22) matches with described snap ring locking caulking groove (142), one group of filtration core (3), this group filtration core (3) is arranged in described filter chamber (13) with horizontally-arranged state, and the filtration core chamber of this group filtration core (3) communicates with described outlet chamber (12), one enters or exits the snap ring manual-operating mechanism (4) of described snap ring locking caulking groove (142) for ordering about described snap ring (22), this snap ring manual-operating mechanism (4) is arranged on described blind plate (2) and is connected back to the side of described one group of filtration core (3) and with snap ring (22), it is characterized in that: above and in the position that corresponds to described snap ring (22) offer a snap ring holding tank (23) around the circumferencial direction of blind plate (2) at described blind plate (2), described snap ring (22) matches with this snap ring holding tank (23), and the circumferencial direction at snap ring (22) offers expansion slot (221) with space state, above and in the position that corresponds to described snap ring manual-operating mechanism (4) form at blind plate (2) and have a lock dog chamber (25), described snap ring manual-operating mechanism (4) comprises snap ring upper port connecting screw rod (41), snap ring lower port connecting screw rod (42), towing plate (43), transition towing plate (44), operating grip (45),Lock dog (46), lock dog alignment pin (47), lock dog alignment pin operating grip (48) and towing plate limit base (49), snap ring upper port connecting screw rod (41) is fixing with the snap ring upper port (222) of snap ring (22), and snap ring lower port connecting screw rod (42) is fixing with the snap ring lower port (223) of snap ring (22), towing plate (43) forms one first towing plate arm (431) and one second towing plate arm (432), the first towing plate arm (431) hub setting is on the first towing plate arm bearing pin (4311), and this first towing plate arm bearing pin (4311) is fixed on described blind plate (2), the second towing plate arm (432) is connected on described snap ring lower port connecting screw rod (42), one end of transition towing plate (44) is connected with described snap ring upper port connecting screw rod (41), middle part forms an operating grip socket (441), the other end is connected on described the first towing plate arm bearing pin (4311), operating grip (45) coordinates with operating grip socket (441) plug, lock dog (46) is arranged in described lock dog chamber (25) and corresponds on described snap ring, lower port (222,223) between, a lock dog defining arm (461) is had in the upper formation of this lock dog (46), this lock dog defining arm (461) offers a lock dog and limit arm aperture (4611), lock dog alignment pin (47) limits arm aperture (4611) through lock dog and is threaded with the lock dog alignment pin screw (26) being opened on blind plate (2), lock dog alignment pin operating grip (48) coordinates with lock dog alignment pin (47) plug, towing plate limit base (49) is fixed on the side of blind plate (2) back to filter chamber (13), this towing plate limit base (49) forms a towing plate limit base chamber (491), described towing plate (43) and transition towing plate (44) are insinuated in towing plate limit base chamber (491), wherein: above and in the position that corresponds to snap ring lower port connecting screw rod (42) offer a screw limiting chute (29) at described blind plate (2), snap ring lower port connecting screw rod (42) is through this screw limiting chute (29), described towing plate limit base (49) is upper or on the wall body of blind plate (2) back to the side of described filter chamber (13), be provided with a pressure release response means (6) for described lock dog alignment pin (47) is locked or unlocked, this pressure release response means (6) communicates with filter chamber (13) and matches with lock dog alignment pin (47), circumferencial direction around blind plate mating interface (14) on described blind plate mating interface (14) and offer lancing door (144) with space state in the position that corresponds to described snap ring locking caulking groove (142), lancing door (144) communicates with snap ring locking caulking groove (142), and on lancing door (144), be equipped with sealing screw (1441).

2. snap ring locking caulking groove according to claim 1 natural gas filter easy to clean, to it is characterized in that on the outer wall of described blind plate mating interface (14) and be positioned at side being extended with a pair door-hinge hinged support seat (143), self correspondence of this opposite house pivot hinge supporting base (143), and pivot is provided with a door-hinge hinge (5) between this opposite house pivot hinge supporting base (143), a pair blind plate axle bed (27) is fixed with back to the side of described filtration core (3) at described blind plate (2), self is corresponding and be connected with door-hinge hinge (5) for this pair blind plate axle bed (27).

3. snap ring locking caulking groove according to claim 2 natural gas filter easy to clean, it is characterized in that described door-hinge hinge (5) comprises hinge chain sheet fixed axis (51) and a pair hinge chain sheet (52), this a pair hinge chain sheet (52) is separately fixed at the two ends of hinge chain sheet fixed axis (51), and a hinge chain bobbin (521) is respectively configured with in one end of this pair hinge chain sheet (52), hinge chain bobbin (521) is bearing on hinge chain sheet axle bed (5211) rotationally, and hinge chain sheet axle bed (5211) is fixed on described door-hinge hinged support seat (143), hinge chain sheet axis hole (522) is respectively offered at the other end of a pair hinge chain sheet (52), hinge chain sheet axis hole (522) is equipped hinge chain sheet bearing pin (5221), a pair described blind plate axle bed (27) is connected with hinge chain sheet bearing pin (5221).

4. snap ring locking caulking groove according to claim 1 natural gas filter easy to clean, it is characterized in that upper at described blind plate (2) and in the position corresponding to described blind plate sealing circle (21) around blind plate (2) circumferencial direction offers a blind plate sealing ring recess (28), blind plate sealing circle (21) is embedded in this blind plate sealing ring recess (28).

5. snap ring locking caulking groove according to claim 1 natural gas filter easy to clean, it is characterized in that described pressure release response means (6) comprises emptying responsive valves (61) and emptying response pipe (62), emptying responsive valves (61) is arranged on described towing plate limit base (49) or is arranged on the side of described blind plate (2) back to described filter chamber (13), the end of the spool (611) of this emptying responsive valves (61) matches with described lock dog alignment pin (47), one end of emptying response pipe (62) be arranged on blind plate (2) and respond pipe joint (621) with the emptying that filter chamber (13) communicates and be connected, and the other end of emptying response pipe (62) is connected with emptying responsive valves (61) and communicates with the valve pocket of emptying responsive valves (61), when the pressure of described filter chamber (13) is zero, described spool (611) removes the locking to lock dog alignment pin (47), and when there is pressure in filter chamber (13), spool (611) locks described lock dog alignment pin (47).

6. snap ring locking caulking groove according to claim 5 natural gas filter easy to clean, it is characterized in that on described lock dog alignment pin (47) and around the circumferencial direction of lock dog alignment pin (47), be configured with a spool be recessed in the surface of lock dog alignment pin (47) inserts recessed channel (471), end and this spool of described spool (611) probe into recessed channel (471) and match.

7. snap ring locking caulking groove according to claim 1 natural gas filter easy to clean, it is characterized in that the degree of depth of described snap ring holding tank (23) adapts with the height of described snap ring (22), and the width of snap ring holding tank (23) adapts with the thickness of snap ring (22), the global shape of described snap ring (22) is C font.

8. snap ring locking caulking groove according to claim 1 natural gas filter easy to clean, it is characterized in that going up at the described first towing plate arm (431) of described towing plate (43) and offering one first towing plate arm pivoting hole (4312) in the position corresponding to described first towing plate arm bearing pin (4311), this first towing plate arm pivoting hole (4312) is nested with on the first towing plate arm bearing pin (4311), go up at described second towing plate arm (432) and offer one second towing plate arm pivoting hole (4321) in the position corresponding to described snap ring lower port connecting screw rod (42), this the second towing plate arm pivoting hole (4321) is nested with on snap ring lower port connecting screw rod (42), and is limited by the nut (421) that limits be configured on snap ring lower port connecting screw rod (42), a First Transition towing plate pivoting hole (442) is offered in one end of described transition towing plate (44) and corresponding to the position of described snap ring upper port connecting screw rod (41), this First Transition towing plate pivoting hole (442) is nested with at snap ring upper port connecting screw rod (41) upper and limited by the stop nut (411) screwed on snap ring upper port connecting screw rod (41), described transition towing plate (44) the other end and offer one second transition towing plate pivoting hole (443) corresponding to the position of described first towing plate arm bearing pin (4311), this the second transition towing plate pivoting hole (443) is nested with at the first towing plate arm bearing pin (4311) upper and limited by the restriction nut (43111) screwed on the first towing plate arm bearing pin (4311).

9. snap ring locking caulking groove natural gas filter easy to clean according to claim 1 or 8, is characterized in that the shape of described towing plate (43) is door font; The shape of described transition towing plate (44) is L-shaped.

10. snap ring locking caulking groove according to claim 1 natural gas filter easy to clean, is characterized in that the length of described lock dog chamber (25) and width adapt with the length of described lock dog (46) and width.