Pneumatic grabber sealing cap

Abstract

The utility model relates to the technical field of oil loading and unloading vehicle sealing, and discloses a pneumatic grabber sealing cap which comprises a loading arm body and further comprises a gas-phase oil gas recovery pipe arranged on one side of the loading arm body. The pneumatic claw hook sealing cap assembly is arranged at one end of the gas-phase oil gas recovery pipe and comprises a connecting elbow piece arranged at one end of the gas-phase oil gas recovery pipe, a vertical pipe piece is arranged at the bottom of the connecting elbow piece, a sealing cap piece is arranged at the bottom of the vertical pipe piece, and the sealing cap piece is arranged at the bottom of the vertical pipe piece. A first air source pipe is arranged on the outer side of the vertical pipe fitting; by arranging the pneumatic claw hook sealing cap assembly, all volatilized oil gas can enter oil gas recovery equipment for retreatment through a gas collecting pipeline, meanwhile, the pneumatic claw hook sealing cap assembly has the outstanding advantages of being tight and reliable in sealing, light in weight, easy and simple to operate, small in number of quick-wear parts, long in service life and the like, and the problem that oil gas leaks at an oil loading hole in the top of a tank truck can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil product loading and unloading vehicle sealing technical field, concretely is a kind of pneumatic claw hook sealing cap. BACKGROUND

[0002] In recent years, with the petrochemical industry standard specification and national safety, environmental protection regulation increasingly strict, oil gas recovery technology is increasingly widely used in oil loading and unloading, storage and transportation etc. link, loading oil gas recovery technology refers to in the process of loading and unloading oil product, utilize closed crane pipe to collect the excess oil gas, then utilize recovery process to complete the transformation of oil gas from gas phase to liquid phase, realize oil product reuse, to achieve energy saving and efficiency, reduce environmental pollution, according to the regulation, oil storage depot (including oil refinery oil station) must carry out oil gas emission control and recovery, oil gas emission non-methane total hydrocarbon concentration does not exceed 25g / m3, oil gas treatment efficiency is not less than 95%.

[0003] At present, the market generally uses conical cap type closed loading crane pipe, volatile oil gas gathers in tank car during oil loading process, oil gas pressure gradually increases, and spring cylinder installed on the outer arm of crane pipe cannot provide enough power to ensure that sealing cap is always closely attached to tank car opening, simultaneously, due to the size of each loading and unloading tank opening, misalignment of crane pipe and tank car caused by operation, in addition to the influence of frequent collision and rain erosion rust, only rely on gravity action is difficult to realize good sealing effect between crane pipe and tank opening, and oil gas volatilization is serious during on-site loading operation, combustible gas detector is often in alarm state, high oil gas density on site causes adverse effects on surrounding environment, personnel health and on-site safety control. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of pneumatic claw hook sealing cap, to solve the misalignment of crane pipe and tank car, tank car opening size is not standard, tank gas pressure increases during oil loading process and other factors cause the defect of upper loading crane pipe sealing leakage, further to make oil gas volatilization serious, further influence surrounding environment and personnel health problem.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of pneumatic claw hook sealing cap, including crane pipe body, further comprising:

[0006] Gas phase oil gas recovery pipe is arranged on one side of crane pipe body;

[0007] Pneumatic claw hook sealing cap assembly is arranged at one end of gas phase oil gas recovery pipe, the pneumatic claw hook sealing cap assembly includes the connecting elbow piece arranged at one end of gas phase oil gas recovery pipe, the bottom of the connecting elbow piece is provided with vertical pipe piece, the bottom of the vertical pipe piece is provided with sealing cap piece, the outside of the vertical pipe piece is provided with first gas source pipe.

[0008] Preferably, the connecting elbow piece comprises an elbow arranged at one end of the gas-phase oil and gas recovery pipe, one end of the elbow is fixedly connected with a rotary joint flange, and the other end of the elbow is fixedly connected with a first flange.

[0009] Preferably, the vertical pipe piece comprises a second flange arranged at the bottom of the first flange, the bottom of the second flange is fixedly connected with an aluminum vertical pipe, the outer side of the aluminum vertical pipe is fixedly connected with a mounting plate, and the outer side of the mounting plate is fixedly connected with a reversing valve.

[0010] Preferably, the vertical pipe piece further comprises a second gas source pipe communicated with the top of the reversing valve, the bottom of the reversing valve is communicated with a silencer pipe, and the outer side of the reversing valve is provided with a sleeve joint.

[0011] Preferably, the sealing cap piece comprises a sleeve tee joint arranged at one end of the first gas source pipe, the end, away from the first gas source pipe, of the sleeve tee joint is provided with a rotary down-stroke cylinder, the piston rod of the rotary down-stroke cylinder is fixedly connected with a copper claw hook, the bottom of the rotary down-stroke cylinder is fixedly connected with a faceplate, and the outer side of the rotary down-stroke cylinder is provided with a sleeve elbow.

[0012] Preferably, the sealing cap piece further comprises a cover-type nut arranged in the inside of the faceplate, the top of the faceplate is fixedly connected with a third flange, the top of the faceplate is provided with a gas-phase pipe, the top of the faceplate is provided with a handle, and the bottom of the faceplate is provided with a gasket.

[0013] Preferably, the sealing cap piece further comprises sealing rubber arranged at the bottom of the gasket, and the bottom of the sealing rubber is provided with a protective sleeve.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] The utility model discloses a pneumatic claw hook sealing cap assembly is provided, through the rotation down -pressing cylinder drive self locking mechanism " clamping " the action of tank mouth realizes crane pipe and tank car mouth flexible sealing connection's effect, and the pneumatic claw hook sealing cap can sink with the settlement of oil tank truck in the oil loading process, and the crane pipe outer arm locking mechanism is saved, in addition, when the gas source pressure is 0.4MPa, the material passing pressure -tight cylinder can provide the locking mechanism with the clamping force of > 300kgf, guarantee that the pneumatic claw hook sealing cap can overcome the oil gas pressure change in tank car, tank car mouth unevenness etc. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure diagram of a preferred embodiment of the pneumatic claw hook sealing cap provided by the utility model is provided.

[0017] Figure 2 The structure connection diagram of the connecting elbow piece, the downpipe piece and the sealing cap piece provided by the utility model is provided.

[0018] Figure 3 The structure connection diagram of the connecting elbow piece and the first gas source pipe provided by the utility model is provided.

[0019] Figure 4 The structure connection diagram of the connecting elbow piece provided by the utility model is provided.

[0020] Figure 5 The structure connection diagram of the second flange and the aluminum downpipe provided by the utility model is provided.

[0021] Figure 6 The structure connection diagram of the aluminum downpipe and the sleeve joint provided by the utility model is provided.

[0022] Figure 7 The structure connection diagram of the sealing cap piece provided by the utility model is provided.

[0023] Figure 8The utility model provides a panel and anti -skidding sleeve structure connection schematic drawing is provided.

[0024] Figure 9 The utility model provides a crane pipe body down pressure state schematic drawing is provided.

[0025] Figure 10 The utility model provides a pneumatic claw hook sealing cap subassembly locking state schematic drawing is provided.

[0026] Figure 11 The utility model provides a pneumatic claw hook sealing cap subassembly disengagement state schematic drawing is provided.

[0027] In the drawing: 1, crane pipe body;2, gas phase oil gas recovery pipe;3, pneumatic claw hook sealing cap subassembly;31, connecting elbow piece;32, drop pipe piece;33, sealing cap piece;34, first gas source pipe;311, swivel joint flange;312, elbow;313, first flange;321, second flange;322, aluminium drop pipe;323, mounting plate;324, second gas source pipe;325, reversing valve;326, muffler pipe;327, clamping sleeve joint;331, clamping sleeve tee joint;332, rotary down pressure cylinder;333, copper claw hook;334, cover type nut;335, panel;336, third flange;337, gas phase pipe;338, third gas source pipe;339, handle;3310, gasket;3311, sealing rubber;3312, protection sleeve;3313, clamping sleeve elbow. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the range of protection of the utility model.

[0029] Please refer to Figures 1-11As shown, a kind of pneumatic claw hook sealing cap, including crane body 1, by setting crane body 1, crane body 1 is installed on the structure on the platform of field foundation two, for the upper loading oil product loading use, still include: setting in crane body 1 one side's gas phase oil gas recovery pipe 2;By setting gas phase oil gas recovery pipe 2, wherein gas phase oil gas recovery pipe 2 is a kind of hose by multiple polymer reinforced layer, sealing layer and outer anti, anti-aging layer composite, it is by the "labyrinth" sealing winding of computer aided design, and by inner and outer helical steel wire support fastening, it is resistant to ultraviolet, ozone, sunlight and weather resistance, with superior wear characteristics, gas phase oil gas recovery pipe 2 is designed with flange, convenient connection pipeline, setting in gas phase oil gas recovery pipe 2 one end's pneumatic claw hook sealing cap assembly 3, by setting pneumatic claw hook sealing cap assembly 3, it and crane body 1 jointly constitute loading crane, play the role of closed loading in loading process, pneumatic claw hook sealing cap assembly 3 includes setting in gas phase oil gas recovery pipe 2 one end's connecting elbow piece 31, the bottom of connecting elbow piece 31 is provided with drop tube piece 32, the bottom of drop tube piece 32 is provided with sealing cap piece 33, the outside of drop tube piece 32 is provided with first gas source pipe 34.

[0030] Reference Figure 2 、and Figure 4 As shown, connecting elbow piece 31 includes setting in gas phase oil gas recovery pipe 2 one end's elbow 312, one end of elbow 312 is fixedly connected with swivel joint flange 311, by setting swivel joint flange 311, can be connected with crane body 1 through the mounting hole reserved in it, the other end of elbow 312 is fixedly connected with first flange 313, by setting first flange 313, can make first flange 313 with second flange 321 is connected, in turn make elbow 312 can be connected with aluminum drop tube 322.

[0031] Reference Figure 2 、 Figure 5 and Figure 6 As shown, drop tube piece 32 includes setting in the bottom of first flange 313 second flange 321, by setting second flange 321, under the action of second flange 321, can be connected with first flange 313, in turn make aluminum drop tube 322 with elbow 312 can be connected stably, the bottom of second flange 321 is fixedly connected with aluminum drop tube 322, the outside of aluminum drop tube 322 is fixedly connected with mounting plate 323, the outside of mounting plate 323 is fixedly connected with reversing valve 325, by setting reversing valve 325, it is three-position four-way reversing valve, by the handle switch of self-owned, can be switched on to realize the function of gas circuit, off, intermediate position, and have 4 gas source interfaces, top interface is installed with second gas source pipe 324, wherein second gas source pipe 324 is total gas source pipe, provide the role of entire equipment gas source, two interfaces are connected with sleeve joint 327, for connecting first gas source pipe 34, and provide gas source for rotary down pressure cylinder 332.

[0032] The vertical pipe 32 further comprises a second gas source pipe 324 connected to the top of the reversing valve 325, the bottom of the reversing valve 325 is connected to the muffling pipe 326, by arranging the muffling pipe 326, the exhaust of the reversing valve 325 can be reduced in noise, the outside of the reversing valve 325 is provided with a sleeve joint 327.

[0033] Referring to Figure 2 , Figure 7 and Figure 8 , the sealing cap 33 comprises a sleeve tee joint 331 arranged at one end of the first gas source pipe 34, by arranging the sleeve tee joint 331, wherein the sleeve tee joint 331 is an outer thread double sleeve joint, one end is connected to the rotary down pressure cylinder 332, one end is connected to the first gas source pipe 34, and the other end is connected to the third gas source pipe 338, the third gas source pipe 338 is connected to the sleeve elbow 3313, together forming a gas source path, the end of the sleeve tee joint 331 away from the first gas source pipe 34 is provided with the rotary down pressure cylinder 332, by arranging the rotary down pressure cylinder 332, the rotary groove is designed on the telescopic rod of the rotary down pressure cylinder 332, which can perform 90° rotation action, and at the same time, the rotary down pressure cylinder 332 changes from the non-working state to the locking state, the piston rod of the rotary down pressure cylinder 332 is fixedly connected with the copper claw hook 333, by arranging the copper claw hook 333, the copper claw hook 333 is made of explosion-proof aluminum bronze material to prevent sparks or static electricity from being generated when clamping the tank opening, and at the same time, the body is provided with a mounting hole connected with the telescopic rod of the rotary down pressure cylinder 332 through bolts, and the tank opening is locked and loosened with the telescopic rod of the rotary down pressure cylinder 332 rising and falling, the bottom of the rotary down pressure cylinder 332 is fixedly connected with the panel 335, by arranging the panel 335, the panel 335 is made of aluminum alloy, wherein the surface of the panel 335 is provided with at least two rotary down pressure cylinders 332, and the outside of the rotary down pressure cylinder 332 is provided with the sleeve elbow 3313.

[0034] The sealing cap piece 33 further comprises a cover nut 334 arranged inside the panel 335, the top of the panel 335 is fixedly connected with a third flange 336, the third flange 336 is made of aluminum alloy and is fixed on the surface of the panel 335 by welding, the third flange 336 is designed with a mounting hole and is fixed with the gas-phase oil and gas recovery pipe 2 by bolts, the top of the panel 335 is provided with a gas-phase pipe 337 made of aluminum alloy, the top of the panel 335 is provided with a handle 339, the surface of the panel 335 is provided with uniformly distributed mounting holes for mounting the handle 339, the handle 339 is made of stainless steel and is firm and durable, the bottom of the panel 335 is provided with a gasket 3310 made of polytetrafluoroethylene, which is resistant to oil corrosion and serves to seal the sealing rubber 3311 and the protective sleeve 3312.

[0035] The sealing cap piece 33 further comprises a sealing rubber 3311 arranged at the bottom of the gasket 3310, the sealing rubber 3311 is made of special composite rubber material and meets the sealing and corrosion resistance requirements of oil loading and unloading, is filled with plant fibers, graphite and inlaid with a steel framework and bolts, is connected with the panel 335 by the cover nut 334 for easy replacement and maintenance, and the bottom of the sealing rubber 3311 is provided with a protective sleeve 3312 made of stainless steel sheet metal, the top of the protective sleeve 3312 is designed with a bolt connection hole, the sealing rubber 3311 is connected with the panel 335 by the internal bolts, and the periphery is designed as a hollow structure, which not only reduces the weight but also facilitates maintenance.

[0036] Working principle: When the staff needs to collect oil and gas by the device, first hook the handle 339 of the sealing cap assembly 3 by the pneumatic claw, press down and align the oil tank truck mouth, press down and then turn the reversing valve 325, open the air supply channel, inflate the rotary down cylinder 332, rotate the copper claw hook 333 to open and rise, lock the filling port, the sealing rubber 3311 is tightly combined with the tank truck mouth, the crane pipe body 1 achieves complete sealing during oil loading, after loading is completed, turn the reversing valve 325 in the opposite direction, the rotary down cylinder 332 acts in the opposite direction, so that the copper claw hook 333 rotates downward, and the sealing rubber 3311 is separated from the oil tank truck mouth and is folded in the protective sleeve 3312 and is attached to the both sides of the aluminum vertical pipe 322, during the alignment process, the protective sleeve 3312 can play a role in alignment and protection of the copper claw hook 333, during the oil loading process, the traditional conical sealing structure is transformed into a pneumatic claw sealing cap crane pipe, which can solve the problem of oil and gas leakage during tank truck loading, realize 100% sealing loading, the system design is reasonable, the operation is stable and reliable, and the economic, environmental and social benefits are remarkable.

[0037] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify different entities or actions and do not necessarily require or imply any actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without further constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0038] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic claw hook seal cap comprising a gooseneck body (1), characterized in that, Also includes: The gas phase oil and gas recovery pipe (2) is arranged on one side of the riser body (1); The pneumatic claw hook sealing cap assembly (3) is arranged at one end of the gas phase oil and gas recovery pipe (2), the connecting elbow piece (31) is arranged at one end of the gas phase oil and gas recovery pipe (2), the bottom of the connecting elbow piece (31) is provided with a downpipe piece (32), the bottom of the downpipe piece (32) is provided with a sealing cap piece (33), and the outer side of the downpipe piece (32) is provided with a first gas source pipe (34).

2. A gas dynamic pinch seal cap according to claim 1, wherein: The connecting elbow piece (31) includes an elbow (312) arranged at one end of the gas phase oil and gas recovery pipe (2), one end of the elbow (312) is fixedly connected with a rotary joint flange (311), and the other end of the elbow (312) is fixedly connected with a first flange (313).

3. A gas dynamic chuck seal cap according to claim 2, wherein: The downpipe piece (32) includes a second flange (321) arranged at the bottom of the first flange (313), the bottom of the second flange (321) is fixedly connected with an aluminum downpipe (322), the outer side of the aluminum downpipe (322) is fixedly connected with a mounting plate (323), and the outer side of the mounting plate (323) is fixedly connected with a reversing valve (325).

4. A gas dynamic chuck seal cap according to claim 3, wherein: The downpipe piece (32) further includes a second gas source pipe (324) communicated with the top of the reversing valve (325), the bottom of the reversing valve (325) is communicated with a silencer pipe (326), and the outer side of the reversing valve (325) is provided with a sleeve joint (327).

5. A gas dynamic chuck seal cap according to claim 1, wherein: The sealing cap piece (33) includes a sleeve tee joint (331) arranged at one end of the first gas source pipe (34), one end of the sleeve tee joint (331) away from the first gas source pipe (34) is provided with a rotary downward pressing air cylinder (332), the piston rod of the rotary downward pressing air cylinder (332) is fixedly connected with a copper claw hook (333), the bottom of the rotary downward pressing air cylinder (332) is fixedly connected with a panel (335), and the outer side of the rotary downward pressing air cylinder (332) is provided with a sleeve elbow (3313).

6. A gas dynamic chuck seal cap according to claim 5, wherein: The sealing cap piece (33) further includes a cover nut (334) arranged inside the panel (335), the top of the panel (335) is fixedly connected with a third flange (336), the top of the panel (335) is provided with a gas phase pipe (337), the top of the panel (335) is provided with a handle (339), and the bottom of the panel (335) is provided with a gasket (3310).

7. A gas dynamic chuck seal cap according to claim 6, wherein: The sealing cap piece (33) further includes a sealing rubber (3311) arranged at the bottom of the gasket (3310), and the bottom of the sealing rubber (3311) is provided with a protective sleeve (3312).

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