CN207415147U - Pressure vessel spray gun device and sand blasting unit - Google Patents

Abstract

The utility model discloses a kind of pressure vessel spray gun devices, include gun barrel including sand-blasting gun, Mobile support device, fixed support device and rotation handle, sand-blasting gun, and gun barrel has locating ring, and gun barrel front end is taken over repeatedly by elbow, connecting tube connection pipette tips；The first cylinder that Mobile support device includes being movably set in outside gun barrel and is clamped with locating ring, the first cylinder body outer wall circumferentially have adjustable supporting support leg, and the first cylinder is equipped with first support；Fixed support device includes the second cylinder, adjustable connection leg, second support, and gear and the wind rotated with moving gear are equipped in second support, rack is equipped between gear and the second cylinder, wheel and rack engages and the front end of rack is connected with first support；Rotation handle is fixedly connected with gun barrel.The pressure vessel spray gun device and sand blasting unit, the derusting by sandblasting inside the restricted clearance of pressure vessel is standby into sandblasting inside container without sandblasting personnel, reduces restricted clearance operating risk, improves sandblasting efficiency.

Description

Pressure vessel spray gun device and sand blasting unit

Technical field

The utility model is related to a kind of surface processing equipments, are filled more particularly to a kind of pressure vessel spray gun device and sandblasting It puts.

Background technology

Pressure vessel refers to filling gas or liquid, carries the Sealing Arrangement of certain pressure, it petro chemical industry, The equipment that each department of the national economy such as energy industry, scientific research and military project all plays an important role；Generally by cylinder, end socket, Flange, sealing element, perforate and take over, bearing etc. six is most of forms vessels.Pressure vessel is due to sealing, pressure-bearing and Jie Explosion, safety that is on fire and jeopardizing personnel, equipment and property of burning and the accident for polluting environment easily occur for the reasons such as matter.Generation Various countries of boundary are classified as important inspection product, the specialized agency specified by country, according to the rule and standard of national regulation Implement supervision and check and technical checking.The medium of pressure vessel be corrosive medium when, inside can carry out corrosion protection design and generally adopt Preservative treatment is carried out with anticorrosive paint, long-time service can cause anti-corrosion failure it is necessary to again that coating is clear by way of sandblasting Removing coating, and ensure that vessel inner surface reaches the adhesive force of 40~80 μm of depth of abrasion pattern increase steel surface.

Compressed air is usually used as power in existing sand blasting unit, with formed high velocity spray beam by material spray (copper ore, Quartz sand, diamond dust, iron sand etc.) be ejected into workpiece surface to be treated at a high speed, make the outer surface of workpiece surface appearance or Shape changes, and due to impact and shear action of the abrasive material to workpiece surface, the surface of workpiece is made to obtain certain cleannes With different roughness, make the mechanical performance of workpiece surface be improved, therefore improve the fatigue resistance of workpiece, add it Adhesive force between coating extends the durability of film, is also beneficial to the levelling and decoration of coating.And to pressure vessel into During row blasting treatment, generally require operating personnel dress protective equipment hold sandblasting pipette tips directly to workpiece (or into pressure hold Device) implement sandblasting.If you need into progress blasting treatment inside pressure vessel, then be lacked during sandblasting is used in restricted clearance there are following Point：Space operation is limited, signal transfers difference in operation process cannot close down equipment personnel operating risk height, operation work by force in time Degree is big, big (the about 0.3Kg/m of work site environment Dust Capacity³) noise is larger, regards in, space larger to operating personnel's body harm Line is unclear phenomena such as causing to repeat sandblasting or drain spray during sandblasting, causes abrasive material waste, longer working time, sandblasting quality low Under, simultaneously because restricted clearance administrative standard is subject to restrict, cause to cause no more than half an hour in internal uninterrupted working time Effective operation time, inside, which go wrong, rescues the defects of more difficult short.

Utility model content

The purpose of this utility model is to provide a kind of pressure vessel spray gun device and sand blasting unit, to solve above-mentioned existing skill Art there are the problem of, realize the derusting by sandblasting inside the restricted clearance of pressure vessel, it is standby into inside container without sandblasting personnel Sandblasting reduces restricted clearance operating risk, improves sandblasting efficiency.

To achieve the above object, the utility model provides following scheme：

The utility model provides a kind of pressure vessel spray gun device, including sand-blasting gun, Mobile support device, fixed support dress It puts and rotates handle, the sand-blasting gun includes a gun barrel, and the gun barrel is equipped with a locating ring, and the front end of the gun barrel passes through one Elbow connects a connecting tube, and the other end of the connecting tube connects a pipette tips；The Mobile support device includes the first cylinder, institute The first cylinder is stated to be movably set in the outside of the gun barrel front end and be clamped with the locating ring, the first cylinder body outer wall edge week To equipped at least three adjustable supporting support legs, the adjustable supporting support leg is to be supported on internal pressure vessel walls, first cylinder It is equipped with first support；Second cylinder of the fixed support device including being arranged at the first cylinder rear, described second Cylinder is movably set in outside the gun barrel, and second cylinder body outer wall is described circumferentially arranged at least three adjustable connection legs Adjustable connection leg to be fixedly connected with Pressure container manhole flange, second cylinder be equipped with second support, described second One gear linkage on stent is installed, a gear is installed on the gear linkage, the second support is externally provided with and institute The wind that one end of gear linkage is fixedly connected is stated, a rack, institute are equipped between the gear and second cylinder State that gear is engaged with the rack and the front end of the rack is fixedly connected with the first support；The rotation handle is located at institute It states the second cylinder rear and is fixedly connected with the gun barrel.

Preferably, a rack fixing bracket is further included, the rack fixing bracket top is slidably connected to described second On the gun barrel between body and the rotation handle, the end of the rack is fixedly connected under the rack fixing bracket Portion.

Preferably, first cylinder is located at the locating ring forepart and the both ends of first cylinder and passes through first axle It holds and is connected with the gun barrel, be arranged with certain position gland outside the gun barrel at the locating ring rear portion, after first cylinder End is fixedly connected with the positioning gland.

Preferably, the both ends of second cylinder are connected by second bearing with the gun barrel, the rack with it is described Limit Bearing is equipped between second cylinder, the Limit Bearing is installed on by limit shaft in the second support, the /V Bearing outer ring is contacted with the upper surface of the rack.

Preferably, the adjustable supporting support leg include the first fixed seat and adjustment supporting rod, first fixed seat with it is described First cylinder is fixedly connected, and first fixed seat is connected with the threaded one end of the adjustment supporting rod, the adjustment supporting rod The other end be equipped with eccentric rolling bearing.

Preferably, the adjustable connection leg include the second fixed seat and adjustment connecting rod, second fixed seat with it is described Second cylinder is fixedly connected, and second fixed seat is connected with the threaded one end of the adjustment connecting rod, the adjustment connecting rod The other end be used to be bolted with the manhole flange of pressure vessel.

Preferably, when the adjustable supporting support leg is provided with three, the folder between adjacent two adjustable supporting support legs Angle is 120 degree；When the adjustable connection leg set there are three when, the angle between adjacent two adjustable connection legs is 120 degree.

Preferably, the afterbody of the gun barrel is equipped with a revolving joint, and the revolving joint includes housing, /V End cap and intermediate connection tube, the housing both ends are equipped with 3rd bearing, and the intermediate connection tube passes through two 3rd bearings, And the outer cover of the intermediate connection tube between two 3rd bearings is equipped with a limiting bush, on the intermediate connection tube It is connected to equipped with spacing ring and by the spacing ring on the 3rd bearing inner ring outer end face being located behind, the centre connects The nose threads taken over are connected with locking nut, and the locking nut is fitted tightly in the 3rd bearing in front On the outer end face of circle, a mechanical seal, the positive stop end are cased with outside the intermediate connection tube in front of the locking nut An oil sealing is equipped in lid, the /V end cap edge is pressed on the outer end face of the 3rd bearing outer ring in front, institute Intermediate connection tube is stated through the oil sealing, and the /V end cap is fixedly connected with the housing, the /V end cap with it is described The end connection of gun barrel.

Preferably, the elbow is 30 elbows, one eighth bend or 60 degree of elbows, the gun barrel and the elbow, described curved Head is to be threadedly coupled with the connecting tube, the connecting tube and the pipette tips.

The utility model also provides a kind of pressure vessel sand blasting unit, including pass sequentially through pipeline connection air compressor, Air accumulator, sand-blasting machine and pressure vessel spray gun device as described above.

The utility model achieves following technique effect compared with the prior art：

Using pressure vessel spray gun device provided by the utility model and pressure vessel sand blasting unit to pressure vessel inside When carrying out blasting treatment, rotation handle is rotated, gun barrel is rotated with rotation handle, so that being installed on the rifle of gun barrel front end Head also moves in a circle, and realizes the blasting treatment to internal pressure vessel walls circumferential direction；Rotary handle crank, wind band moving gear turn Dynamic, gear band carry-over bar movement, rack is fixedly connected on the first cylinder, and the first cylinder is connected on locating ring, the first cylinder It can rotate but will not move axially compared with gun barrel, so that rack drives gun barrel is moved along the axial direction of pressure vessel It is dynamic, realize the blasting treatment to internal pressure vessel walls axial direction.Repeat above-mentioned action, you can complete to internal pressure vessel walls entirety Blasting treatment.

Pressure vessel spray gun device and pressure vessel sand blasting unit provided by the utility model, reduce restricted clearance operation Risk, it is ensured that the physical and mental health of operating personnel reduces the labor intensity of operating personnel, improves sandblasting efficiency and reduces the activity duration, Sandblasting material usage amount is reduced, reduces operating personnel's quantity, adapts to Fast Installation and the operation at scene.

Pressure vessel spray gun device and pressure vessel sand blasting unit provided by the utility model have the following advantages：

1st, replacement operating personnel enters carries out sandblasting operation for a long time in restricted clearance, reduce operating risk；

2nd, it is light and handy easy to remove；

3rd, since personnel do not have into operation in pressure vessel, avoid and contacted directly with dust and noise, effectively dropped The low personal injury to operating personnel；

4th, the length of adjustable adjustable supporting support leg leg and adjustable connection leg is suitable for the use of the pressure vessel of different-diameter；

5th, equipment operation is simple, easy to get started, and 1 people of sand-blasting machine can be operated；

6th, main equipment and auxiliary device quickly can be connected and installed；

7th, operating personnel does not enter restricted clearance, improves sandblasting quality, the effective blast time of raising can simultaneously save abrasive material.

Description of the drawings

It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this A little attached drawings obtain other attached drawings.

Fig. 1 is the overall structure diagram of pressure vessel spray gun device provided by the utility model；

Fig. 2 is the close-up schematic view at the pressure vessel spray gun device C in Fig. 1；

Fig. 3 is the close-up schematic view at the pressure vessel spray gun device D in Fig. 1；

Fig. 4 is the close-up schematic view at the pressure vessel spray gun device E in Fig. 1；

Fig. 5 is the structure diagram of pressure vessel sand blasting unit provided by the utility model；

Fig. 6 is the A-A sectional views of the pressure vessel sand blasting unit in Fig. 5；

Fig. 7 is the B-B sectional views of the pressure vessel sand blasting unit in Fig. 5；

In figure：1- sand-blasting guns；11- gun barrels；111- locating rings；12- elbows；13- connecting tubes；14- pipette tips；2- movement supports Device；The first cylinders of 21-；22- adjustable supporting support legs；The first fixed seats of 221-；222- adjusts supporting rod；The 223- bias axis of rolling It holds；23- first supports；24- clutch shaft bearings；25- positioning glands；3- fixed support devices；The second cylinders of 31-；Connection that 32- is adjustable Leg；The second fixed seats of 321-；322- adjusts connecting rod；33- second supports；34- gear linkages；35- gears；36- winds； 37- second bearings；4- rotates handle；5- pressure vessels；51- manhole flanges；6- racks；7- sand-blasting machines；8- rack fixing brackets； 9- revolving joints；91- housings；92- /V end caps；93- intermediate connection tubes；94- 3rd bearings；95- limiting bushs；96- Mechanical seal；97- oil sealings.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained shall fall within the protection scope of the present invention.

The purpose of this utility model is to provide a kind of pressure vessel spray gun device and sand blasting unit, to solve above-mentioned existing skill Art there are the problem of, realize the derusting by sandblasting inside the restricted clearance of pressure vessel, it is standby into inside container without sandblasting personnel Sandblasting reduces restricted clearance operating risk, improves sandblasting efficiency.

To enable the above-mentioned purpose of the utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and have Body embodiment is described in further detail the utility model.

Embodiment one

The present embodiment provides a kind of pressure vessel spray gun device, as shown in Fig. 1~4 and Fig. 6~7, including sand-blasting gun 1, Mobile support device 2, fixed support device 3 and rotation handle 4, sand-blasting gun 1 include a gun barrel 11, and gun barrel 11 is equipped with a positioning Ring 111, the front end of gun barrel 11 connect a connecting tube 13 by an elbow 12, and the other end of connecting tube 13 connects a pipette tips 14；It moves Dynamic support device 2 includes the first cylinder 21, and the first cylinder 21 is movably set in the outside of 11 front end of gun barrel and blocks with locating ring 111 It connects, 21 outer wall of the first cylinder circumferentially arranged at least three adjustable supporting support legs 22, to be supported in pressure hold by adjustable supporting support leg 22 On 5 inner wall of device, the first cylinder 21 is equipped with first support 23；Fixed support device 3 includes being arranged at 21 rear of the first cylinder Second cylinder 31, the second cylinder 31 are movably set in outside gun barrel 11, and 31 outer wall of the second cylinder can circumferentially arranged at least three Connection leg 32 is adjusted, for adjustable connection leg 32 to be fixedly connected with 5 manhole flange 51 of pressure vessel, the second cylinder 31 is equipped with second Stent 33, is equipped with a gear linkage 34 in second support 33, and in the present embodiment and gear linkage 34 is a gear pin, tooth A gear 35 is installed on wheel connector 34, second support 33 be externally provided be fixedly connected with one end of gear linkage 34 it is hand Handle 36 is equipped with a rack 6 between 35 and second cylinder 31 of gear, and gear 35 is engaged with rack 6 and the front end of rack 6 and first Stent 23 is fixedly connected；Rotation handle 4 is located at 33 rear of the second cylinder and is fixedly connected with gun barrel 11.

The pressure vessel spray gun device that the utility model uses is directed to the pressure vessel for specifically having center manhole and is applied Work, for horizontal pressure vessel, middle part has float liquid level regulating valve, and manhole latus rectum leads in 300-600mm scopes, pressure vessel Footpath is in the range of 800-3000mm, the derusting by sandblasting inside pressure vessel restricted clearance, and changing existing sandblast technology needs personnel Enter inside pressure vessel the backwardness situation for carrying out sandblasting by abrasive blast equipment.

Using before pressure vessel spray gun device provided by the utility model, it is necessary to carry out group to pressure vessel spray gun device Dress.Manhole is opened, gun barrel 11 is made to enter to inside pressure vessel 5, and in the good sand-blasting gun 1 of 5 assembled inside of pressure vessel and movement Support device 2 makes adjustable supporting support leg 22 be supported on 5 inner wall of pressure vessel, close manhole after, by fixed support device 3 can Connection leg 32 is adjusted to be fixedly connected with 5 manhole flange 51 of pressure vessel, 11 tail end of gun barrel connection sand-blasting machine 7 completes pressure vessel The preparatory process of blasting treatment.When using pressure vessel sand blasting unit to carrying out blasting treatment inside pressure vessel 5, rotation is rotated Handle 4 is changed hands, gun barrel 11 is rotated with rotation handle 4, so that the pipette tips for being installed on 11 front end of gun barrel also move in a circle, Realize the blasting treatment to pressure vessel 5 inner wall circumferential direction；Rotary handle crank 36, wind 36 are rotated with moving gear 35, gear 35 Band carry-over bar 6 moves, and rack 6 is fixedly connected on the first cylinder 21, and the first cylinder 21 is connected on locating ring 111, first Body can be rotated compared with gun barrel 11 but will not moved axially, so that rack 6 drives gun barrel and the first cylinder 21 Together along the axial movement of pressure vessel 5, the blasting treatment to pressure vessel 5 inner wall axial direction is realized.Repeat above-mentioned action, you can Complete the blasting treatment to pressure vessel 5 inner wall entirety.

Specifically, the gun barrel 11 in the present embodiment is 3.5 meters of overall length, the seamless pipe of a diameter of 60mm, the weldering of seamless pipe both ends The one start screw pipe nipple of a diameter of 42.2mm is connect, a locating ring 111 is welded at the 300mm of seamless pipe front end, since pressure is held 5 end socket of device is dome-type, and depth is generally 500-600mm, to maximum row when Mobile support device 2 is moved to end socket commissure Journey, at this point, pressure vessel spray gun device still ensures that sand-blasting gun 1 carries out effectively blasting treatment to end socket, it can also be ensured that have Maximum extension distance.Elbow 12 is internal thread elbow, and the elbow 4 in the Spray Gun Of The Pressure device of the present embodiment is 45 degree of internal threads Elbow, gun barrel 11 are to be threadedly coupled with elbow 12, elbow 12 and connecting tube 13, connecting tube 13 and pipette tips 14.30~45 degree of sprays Sand angle handles surface, and abrasive material can be allowed instantaneously to achieve the effect that the sandblasting area of bigger and best with minimum abrasion, also saved Abrasive material can reuse abrasive material.The connecting tube 13 of corresponding length, connection are selected according to 4 diameter of pressure vessel after elbow 12 Pipe 13 is double end external screw thread pipe nipple, and pipette tips 14 are standard sandblasting pipette tips, after the double end external screw thread pipe nipple of different length is selected to install, Inner wall of the sand-blasting gun 1 apart from pressure vessel 5 keeps the sandblasting distance of 300mm to can guarantee optimal sandblasting effect, then installs standard Sandblasting pipette tips.The effective length of blasting treatment can be carried out in order to extend pressure vessel spray gun device, it can be at seamless pipe screw thread Pipe collar always is installed, after then connecting a degree of straight tube according to the length needed for pressure vessel 5, then is sequentially connected elbow 12nd, connecting tube 13 and pipette tips 14.Selected double end external screw thread pipe nipple is kept after being installed with pipette tips 14 with 5 tank skin of pressure vessel 300mm distances carry out sandblasting with 2 meters per minute of speed.The width of sandblasting keeps 5-7cm.When in use, shake manually hand 35 drive gear 35 of handle, gear 35, which is rotated, to be stirred rack 6 forward by the tooth engaged with rack 6 or moves backward, so as to It drives Mobile support device 2 forward or moves backward.It is pressed on rack 6 and the marking (1 pipette tips of sand-blasting gun is vertically drawn per 5cm 14 apart from 5 inner wall 300mm of pressure vessel when sandblasting diameter about 5-7cm, mobile 5cm is to ensure the sandblasting area side of each circle Edge, which can be effectively overlapped, prevents drain spray)；Rotate rotation handle 4 make sand-blasting gun 1 rotate in a circumferential direction after a week, shake wind 36 forward or 5cm is shaken backward, is rotated further rotation handle 4 and is carried out sandblasting operation.

Pressure vessel spray gun device in the present embodiment further includes a rack fixing bracket 8, and 8 top of rack fixing bracket is consolidated Due on the gun barrel 11 between the second cylinder 31 and rotation handle 4, the end of rack 6, which is slidably connected, is connected to rack fixing bracket 8 lower parts.

As shown in Fig. 2, the first cylinder 21, which is located at 111 forepart of locating ring and the both ends of the first cylinder 21, passes through clutch shaft bearing 24 are connected with gun barrel 11, certain position gland 25 are arranged with outside the gun barrel 11 at 111 rear portion of locating ring, the rear end of the first cylinder 21 is with determining Position gland 25 is fixedly connected.

Mobile support device 2 is to move back and forth to realize by the rack 6 that bolt is fixedly connected therewith, and the first cylinder 21 passes through Clutch shaft bearing 24 is sleeved on 11 periphery of gun barrel, and gun barrel 11 can be made to be rotated freely among the first cylinder 21.After the first cylinder 21 25 diameter of bore of positioning gland at end is less than the diameter for being welded on the locating ring 111 on gun barrel 11, and Mobile support device 2 moves When, positioning gland 25 promotes locating ring 111 that gun barrel 11 is driven to move together, and guarantee gun barrel 11 moves axially or circumferential movement When, the distance between gun barrel 11 and Mobile support device 2 do not change, the firm support gun barrel 11 of Mobile support device 2.

The both ends of second cylinder 31 are connected by second bearing 37 with gun barrel 11, are set between 6 and second cylinder 31 of rack There is Limit Bearing, Limit Bearing is installed on by limit shaft in second support 33,37 outer ring of Limit Bearing and the upper surface of rack 6 Contact, the lower surface of rack 6 are engaged for serrated face and with gear 35, and the upper surface of rack 6 is plane.

4 Limit Bearings are equipped between 6 and second cylinder 31 of the present embodiment middle rack, and are mounted on second support 33 On；Since the Limit Bearing for being pressed in 6 upper surface of rack limits the upward movement of rack 6, ensure in rotate gear 35 and rack 6 When, gear 35 and rack 6 will not separate, and Limit Bearing can limit rack 6 and move upwards；Rack 6 is also reduced simultaneously to be moved through Friction in journey, the back-and-forth motion for enabling rack 6 smooth.

As shown in Fig. 2, adjustable supporting support leg 22 includes the first fixed seat 221 and adjustment supporting rod 222, the first fixed seat 221 It is fixedly connected with the first cylinder 21, the first fixed seat 221 is connected with adjusting the threaded one end of supporting rod 222, rotation adjustment support Bar 222 can adjust the length of adjustable supporting support leg 22, and the other end of adjustment supporting rod 222 is equipped with eccentric rolling bearing 223.

As shown in figure 3, adjustable connection leg 32 includes the second fixed seat 321 and adjustment connecting rod 322, the second fixed seat 321 It is fixedly connected with the second cylinder 322, the second fixed seat 321 is connected with adjusting the threaded one end of connecting rod 322, rotation adjustment connection Bar 322 can adjust the length of adjustable connection leg 32, and the other end of adjustment connecting rod 322 is for the manhole method with pressure vessel 5 Orchid 51 is bolted.

It by adjusting the length of adjustable supporting support leg leg 22 and adjustable connection leg 32, can be applicable in pressure vessel spray gun device In the use of the pressure vessel of different-diameter.

There are three pressure vessel spray gun device in the present embodiment, adjustable supporting support leg 22 and adjustable connection leg 32 are respectively provided with, Angle between two adjacent adjustable supporting support legs 22 is 120 degree, and the angle between adjacent two adjustable connection legs 32 is also 120 degree so that the support and connection to pressure vessel spray gun device are more firm.

Specifically, Mobile support device 2, clutch shaft bearing 24 is the slightly larger axis of seamless pipe diameter that internal diameter diameter group is 60mm It holds, and clutch shaft bearing 24 is embedded on the inside of 21 both ends of the first cylinder and is being sleeved on outside gun barrel 11.By every outside the first cylinder 21 120 degree of welded and installeds, one the first fixed seat 221, adjustment supporting rod 222 carry the long filament of eccentric rolling bearing 223 for top Bar.In installation process, the first cylinder 21 for being equipped with clutch shaft bearing 24 is inserted in from 111 front end of locating ring to locating ring 111 Position, then positioning gland 25 is inserted in from 11 rear end of gun barrel, positioning gland 25 is connected with 21 rear end of the first cylinder.Mobile branch After the gun barrel 11 of support arrangement 2 and a diameter of 60mm are installed, gun barrel 11 can be in the 21 center rotation of the first cylinder, in pressure vessel When being installed in 5, adjustment supporting rod 222 be externally provided with locking nut with adjust adjustment 222 and first fixed seat 221 of supporting rod between be No locking；Change the length of adjustable supporting support leg 22 gun barrel 11 is made to be maintained at 5 center of pressure vessel and be supported in pressure vessel 5 On wall and with 5 inner wall gentle touchdown of pressure vessel, 22 end of adjustable supporting support leg can not hold out against in 5 inner wall of pressure vessel, prevent from moving The interim card of dynamic support device 2.22 top of adjustable support leg is due to the use of capacity eccentric bearing, when rack 6 promotes, mobile support dress Center axial movement can be kept with gun barrel 11 along 5 inner wall of pressure vessel by putting 2, and sand-blasting gun 1 is kept to be protected when moving in a circle Hold constant with the distance of 5 inner wall of pressure vessel, sandblasting is evenly.

Fixed support device 3 is by the second cylinder 31, slightly larger the second axis of seamless pipe diameter that internal diameter diameter group is 60mm It holds and is made of at the top of 37 and three the adjustable connection leg 32 of bolt mounting holes.

As shown in figure 4, the afterbody of gun barrel 11 is equipped with a revolving joint 9, revolving joint 9 includes housing 91, limit Position end cap 92 and intermediate connection tube 93,91 both ends of housing are equipped with 3rd bearing 94, and intermediate connection tube 93 passes through two 3rd bearings 94, and the outer cover of the intermediate connection tube 93 between two 3rd bearings 94 is equipped with a limiting bush 95, on intermediate connection tube 93 Equipped with spacing ring and pass through spacing ring and be connected on the 94 inner ring outer end face of 3rd bearing being located behind, before intermediate connection tube 93 End is threaded with locking nut, and locking nut is fitted tightly on the outer end face of 94 inner ring of 3rd bearing in front, A mechanical seal 96 is cased with outside intermediate connection tube 93 in front of locking nut, an oil sealing 97, limit are equipped in /V end cap 92 Position 92 edge of end cap is pressed on the outer end face of 94 outer ring of 3rd bearing in front, and intermediate connection tube 93 passes through oil sealing 97, And /V end cap 92 is fixedly connected with housing 91, /V end cap 92 is connected with the end of gun barrel 11.

When mounted, the 3rd bearing 94 of rear end is first installed on 91 bottom of housing, then intermediate connection tube 93 is installed, thereafter The 3rd bearing 94 of limiting bush 95 and front end is installed successively, spacing ring is connected on the 94 inner ring outer end face of 3rd bearing of rear end Afterwards, it is mounted on using locking nut and tightens at the screw thread of intermediate connection tube 93 and mutually lock.Again by the elasticity of mechanical seal 96 Sealing surface is mounted on intermediate connection tube 93, completes the assembling of 91 part of housing.It is first anti-in 92 bosom position of /V end cap One oil sealing 97 of installation, then the assembling for completing /V end cap 92 is mounted side by side with the sealing surface of mechanical seal 96.It finally will limit Position end cap 92 is directed at 91 end face of housing, and intermediate connection tube 93 is sequentially passed through to the interstitial hole of 96 end face of mechanical seal and oil sealing 97, Finally /V end cap 92 and housing 91 are connected using bolt and tighten the assembling for completing revolving joint 9./V when in use 92 screw position of end cap is installed internal thread pipe collar and is attached again with gun barrel 11.Finally in 93 end spiral shell of intermediate connection tube Sandblasting delivery pipe at line is installed and completes assembling, you can carries out blasting treatment.The present apparatus can be ensured to be rotated in Spray Gun Of The Pressure device When, sandblasting delivery pipe can not have to rotation and complete to send husky work, and the relatively simple easy to repair and disassembled for transport of structure avoids pipeline Mutually turning round strength causes fatigue impaired.

Embodiment two

It is empty including passing sequentially through pipeline connection as shown in Fig. 5~7 the present embodiment provides a kind of pressure vessel sand blasting unit Pressure vessel spray gun device in air compressor, air accumulator, sand-blasting machine 7 and embodiment one.

Pressure vessel sand blasting unit is power by the compressed air of air compressor, and air accumulator is as buffering source of the gas storage It is standby, it is connected by air accumulator with the sandblasting delivery pipe of sand-blasting machine 7, by the pressure and mobility of gas, by the mill in sand-blasting machine 7 Material, sandblasting delivery pipe be sand-blast hose, the end with the intermediate connection tube 93 of the revolving joint 9 of pressure vessel spray gun device Connection, the pressure vessel spray gun device into 5 restricted clearance of pressure vessel, from 14 sandblasting of pipette tips to 5 inner wall of pressure vessel into Row sandblasting operation.

Specific case is applied in the utility model to be set forth the principle and embodiment of the utility model, more than The explanation of embodiment is only intended to help the method and its core concept for understanding the utility model；Meanwhile for the one of this field As technical staff, according to the thought of the utility model, in specific embodiments and applications there will be changes.To sum up Described, this specification content should not be construed as the limitation to the utility model.

Claims (10)

1. a kind of pressure vessel spray gun device, it is characterised in that：Including：

Sand-blasting gun, the sand-blasting gun include a gun barrel, and the gun barrel is equipped with a locating ring, and the front end of the gun barrel is curved by one Head one connecting tube of connection, the other end of the connecting tube connect a pipette tips；

Mobile support device, the Mobile support device include the first cylinder, and first cylinder is movably set in the gun barrel The outside of front end is simultaneously clamped with the locating ring, and first cylinder body outer wall is circumferentially arranged at least three adjustable supporting support legs, institute Adjustable supporting support leg is stated to be supported on internal pressure vessel walls, first cylinder is equipped with first support；

Fixed support device, the fixed support device include being arranged at second cylinder at the first cylinder rear, and described the Two cylinders are movably set in outside the gun barrel, and second cylinder body outer wall is circumferentially arranged at least three adjustable connection legs, institute Adjustable connection leg is stated to be fixedly connected with Pressure container manhole flange, second cylinder is equipped with second support, and described the One gear linkage on two stents is installed, a gear is installed on the gear linkage, the second support be externally provided with The wind that one end of the gear linkage is fixedly connected is equipped with a rack between the gear and second cylinder, The gear is engaged with the rack and the front end of the rack is fixedly connected with the first support；And

Handle is rotated, the rotation handle is located at the second cylinder rear and is fixedly connected with the gun barrel.

2. pressure vessel spray gun device according to claim 1, it is characterised in that：Further include a rack fixing bracket, institute It states on the gun barrel that rack fixing bracket top is slidably connected between second cylinder and the rotation handle, the tooth The end of item is fixedly connected on the rack fixing bracket lower part.

3. pressure vessel spray gun device according to claim 1, it is characterised in that：First cylinder is located at the positioning The ring forepart and both ends of first cylinder are connected by clutch shaft bearing with the gun barrel, the rifle at the locating ring rear portion Pipe is outer to be arranged with certain position gland, and the rear end of first cylinder is fixedly connected with the positioning gland.

4. pressure vessel spray gun device according to claim 1, it is characterised in that：The both ends of second cylinder pass through Second bearing is connected with the gun barrel, and Limit Bearing is equipped between the rack and second cylinder, and the Limit Bearing leads to It crosses limit shaft to be installed in the second support, the Limit Bearing outer ring is contacted with the upper surface of the rack.

5. pressure vessel spray gun device according to claim 1, it is characterised in that：It is solid that the adjustable supporting support leg includes first Reservation and adjustment supporting rod, first fixed seat are fixedly connected with first cylinder, first fixed seat and the tune The threaded one end connection of whole supporting rod, the other end of the adjustment supporting rod are equipped with eccentric rolling bearing.

6. pressure vessel spray gun device according to claim 5, it is characterised in that：It is solid that the adjustable connection leg includes second Reservation and adjustment connecting rod, second fixed seat are fixedly connected with second cylinder, second fixed seat and the tune The threaded one end connection of whole connecting rod, the other end of the adjustment connecting rod are used to connect with the manhole flange bolt of pressure vessel It connects.

7. pressure vessel spray gun device according to claim 6, it is characterised in that：When the adjustable supporting support leg is provided with three When a, the angle between adjacent two adjustable supporting support legs is 120 degree；When the adjustable connection leg set there are three when, Angle between two adjacent adjustable connection legs is 120 degree.

8. pressure vessel spray gun device according to claim 1, it is characterised in that：The afterbody of the gun barrel is equipped with a rotation Attachment device, the revolving joint include housing, /V end cap and intermediate connection tube, and the housing both ends are equipped with the 3rd axis It holds, the intermediate connection tube passes through two 3rd bearings, and the intermediate connection tube between two 3rd bearings Outer cover be equipped with a limiting bush, the intermediate connection tube is equipped with spacing ring and passes through after the spacing ring is connected to and is located at On the 3rd bearing inner ring outer end face of side, the nose threads of the intermediate connection tube are connected with locking nut, and the lock Tight nut is fitted tightly on the outer end face of the 3rd bearing inner ring in front, the institute in front of the locking nut It states and a mechanical seal is cased with outside intermediate connection tube, be equipped with an oil sealing in the /V end cap, the /V end cap edge is pressed on On the outer end face of the 3rd bearing outer ring in front, the intermediate connection tube passes through the oil sealing, and the positive stop end Lid is fixedly connected with the housing, and the /V end cap is connected with the end of the gun barrel.

9. pressure vessel spray gun device according to claim 1, it is characterised in that：The elbow for 30 elbows, 45 degree it is curved Head or 60 degree of elbows, the gun barrel are with the elbow, the elbow and the connecting tube, the connecting tube and the pipette tips It is threadedly coupled.

10. a kind of pressure vessel sand blasting unit, it is characterised in that：Including pass sequentially through pipeline connection air compressor, air accumulator, Sand-blasting machine and such as pressure vessel spray gun device according to any one of claims 1 to 9.