Inner wall spraying device for pressure container

Abstract

The invention relates to an inner wall spraying device for a pressure container. The clamping mechanism comprises a supporting frame, a moving frame and a clamping block, the end of the bottom edge of the supporting frame is connected with the clamping block, the moving frame is driven by a translation mechanism to move up and down along the supporting frame, and one side of the moving frame is connected with the clamping block; the rotating mechanism comprises a rotating motor, and the clamping mechanism is driven to rotate through the rotating motor. The spraying mechanism comprises a spraying pipe and a translation seat fixedly connected with the spraying pipe, a plurality of nozzles are arranged at the bottom of the spraying pipe, and one side of the spraying pipe is connected with a feeding pipe; heating pipes are mounted on two sides of the spraying pipe. The spraying device has the advantages that the pressure container is clamped through the clamping mechanism, the clamping mechanism is driven to rotate through the rotating mechanism, the pressure container is driven to rotate, the spraying mechanism moves horizontally, so that a spraying pipe and a nozzle can enter the pressure container, the pressure container rotates, the inner wall of the pressure container is sprayed in the circumferential direction, and the spraying efficiency is high; and the sprayed part is dried in time through the heating pipe, so that uniform spraying is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of pressure vessel manufacturing, and in particular to an inner wall spraying device of a pressure vessel. Background Art

[0002] A pressure vessel is a closed container that can withstand pressure. Pressure vessels are widely used and play an important role in many sectors such as industry, civil industry, military industry, and many fields of scientific research. They are most commonly used in the chemical industry and petrochemical industry. Today's pressure vessels are generally made of stainless steel, which is not easy to rust. However, stainless steel is easily corroded in special environments, which can damage the pressure vessel and increase the risk of using the container. Anti-corrosion can be achieved by spraying anti-corrosion materials on the surface of the pressure vessel.

[0003] In the prior art, when spraying the inner surface of a pressure vessel, the pressure vessel is usually fixed and the inner wall of the pressure vessel is sprayed manually, or the spray head is rotated to perform circumferential rotation spraying on the inner wall of the pressure vessel. The area that can be sprayed at the same time is small, the spraying efficiency is low, and the spraying cannot be dried in time after spraying. The sprayed material is easy to fall off after spraying, resulting in uneven spraying, and the anti-corrosion performance of the pressure vessel after spraying cannot be guaranteed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a device for spraying the inner wall of a pressure vessel, which can solve the problems in the prior art that when spraying the inner wall of a pressure vessel, a fixed nozzle of the pressure vessel is usually rotated, resulting in low spraying efficiency, easy falling after spraying, resulting in uneven spraying, and failure to ensure the anti-corrosion performance of the pressure vessel after spraying.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows: comprising a clamping mechanism, a rotating mechanism, a supporting mechanism and a spraying mechanism; The clamping mechanism includes a support frame, a mobile frame and a clamping block, the support frame is an L-shaped structure, the bottom end of the support frame is connected to the clamping block, the mobile frame is an inverted L-shaped structure, the mobile frame is installed on the upper side of the support frame, the mobile frame is driven by the translation mechanism to translate up and down along the support frame, and the side of the mobile frame away from the support frame is connected to the clamping block through a connecting rod; The rotating mechanism includes a rotating motor, the support frame is provided with a collar, the collar is sleeved on the output shaft of the rotating motor and is fixedly connected thereto, the rotating motor is supported and fixed on the base through a support seat, and the clamping mechanism is driven to rotate by the rotating motor; The support mechanism comprises a support ring, and the support ring is fixed on the base through a fixing seat; The spraying mechanism comprises a spraying pipe and a translation seat fixedly connected to the spraying pipe, the translation seat is driven by a cylinder to translate along the base, a plurality of nozzles are arranged at the bottom of the spraying pipe, and a feed pipe is connected to one side of the spraying pipe; Heating pipes are respectively installed on both sides of the spray pipe.

[0006] Furthermore, the clamping surface of the clamping block is an arc-shaped groove structure, and the arc-shaped groove structure is arranged corresponding to the outer peripheral shape of the pressure vessel.

[0007] Furthermore, the translation mechanism includes a driving motor, a gear and a rack. The driving motor is installed on one side of the support frame, a gear is installed on the output shaft of the driving motor, and a rack is installed on the side of the mobile frame close to the support frame, and the rack is meshed with the gear.

[0008] Furthermore, a T-shaped slot is provided on one side of the support frame close to the movable frame, a T-shaped block is connected to one end of the movable frame close to the support frame, and the T-shaped block is arranged in the T-shaped slot, and the T-shaped block translates up and down along the T-shaped slot, driving the movable frame to translate up and down along the support frame.

[0009] Furthermore, the collar and the support frame are fixed by bolt connection.

[0010] Furthermore, an anti-wear gasket is provided on the inner periphery of the support ring.

[0011] Furthermore, the cylinder is installed on the side of the fixed platform, the fixed platform is fixed on the base, the top of the base is provided with a translation groove, the bottom of the translation seat is connected with a translation block, the translation block is arranged in the translation groove and moves horizontally along the translation groove.

[0012] After adopting the above structure, the advantages of the present invention are: the pressure vessel placed horizontally is clamped by the clamping mechanism, the clamping mechanism is driven to rotate by the rotating mechanism, thereby driving the pressure vessel to rotate, the spraying mechanism moves horizontally to allow the spraying pipe and the nozzle to enter the interior of the pressure vessel, and the inner wall of the pressure vessel is sprayed simultaneously by multiple nozzles, the nozzle does not move, and the pressure vessel rotates, so that the circumferential spraying of the inner wall of the pressure vessel can be achieved, and the spraying efficiency is high; During spraying, the pressure vessel is supported by a supporting mechanism to ensure the stability of the pressure vessel when it rotates; After spraying, the pressure vessel rotates, and the sprayed part can be heated and dried in time through the heating pipe to ensure uniform spraying and the anti-corrosion performance of the pressure vessel after spraying; The bottom of the pressure vessel can be supported by the support frame of the clamping mechanism and the clamping block connected thereto. The movement of the movable frame can drive the clamping block connected thereto to move until the two clamping blocks work together to clamp the pressure vessel. Only one clamping block needs to be driven to complete the clamping operation. The clamping operation is more convenient and energy-saving, and the clamping stability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the connection structure between the support ring and the pressure vessel of the present invention; Figure 3 It is a side view of the spray tube of the present invention. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. The following embodiments can enable technicians in this field to understand the present invention more comprehensively, but the present invention is not limited to the scope of the embodiments.

[0015] like Figure 1 As shown, this specific embodiment adopts the following technical scheme: it includes a clamping mechanism 1, a rotating mechanism 2, a supporting mechanism 3 and a spraying mechanism 4, the pressure vessel 10 is clamped by the clamping mechanism 1, the rotating mechanism 2 drives the clamping mechanism 1 and the pressure vessel 10 to rotate, the rotating pressure vessel 10 is supported by the supporting mechanism 3, and the inner wall of the pressure vessel 10 is sprayed by the spraying mechanism 4.

[0016] The clamping mechanism 1 includes a support frame 11, a movable frame 12 and a clamping block 13. The support frame 11 is an L-shaped structure. The bottom end of the support frame 11 is connected to the clamping block 13. The support frame 11 and the clamping block 13 support the bottom of the horizontally placed pressure vessel 10.

[0017] The movable frame 12 is an inverted L-shaped structure. The movable frame 12 is installed on the upper side of the support frame 11. The movable frame 12 is driven by a translation mechanism to translate up and down along the support frame 11. The side of the movable frame 12 away from the support frame 11 is connected to a clamping block 13 through a connecting rod 14. The clamping surface of the clamping block 13 is an arc-shaped groove structure, and the arc-shaped groove structure is arranged corresponding to the outer peripheral shape of the pressure vessel 10.

[0018] The translation mechanism includes a driving motor 15, a gear 16 and a rack 17. The driving motor 15 is installed on one side of the support frame 11. The gear 16 is installed on the output shaft of the driving motor 15. The rack 17 is installed on the side of the mobile frame 12 close to the support frame 11. The rack 17 is meshed with the gear 16. A T-slot is provided on the side of the support frame 11 close to the mobile frame 12. A T-block is connected to the end of the mobile frame 12 close to the support frame 11, and the T-block is arranged in the T-slot. The T-block translates up and down along the T-slot, driving the mobile frame 12 to rise and fall along the support frame 11. The driving motor 15 drives the gear 16 to rotate. Due to the meshing action, the gear 16 rotates to drive the rack 17 to translate, thereby driving the mobile frame 12 to rise and fall. The mobile frame 12 drives the clamping block 13 connected thereto to rise and fall. The clamping block 13 connected to the support frame 11 works together to clamp the pressure vessel 10.

[0019] The rotating mechanism 2 includes a rotating motor 21, and a collar 22 is provided on the support frame 11. The collar 22 is fixed to the support frame 11 by bolts. The collar 22 is sleeved on the output shaft of the rotating motor 21 and fixedly connected thereto. The rotating motor 21 is supported and fixed on the base 20 by a support seat 23. The collar 22 is driven to rotate by the rotating motor 21, thereby driving the support frame 11 to rotate, thereby realizing that the clamping mechanism 1 drives the pressure vessel 10 to rotate.

[0020] like Figure 2 As shown, the support mechanism 3 includes a support ring 31, an anti-wear gasket 32 ​​is provided on the inner circumference of the support ring 31, and the support ring 31 is supported and fixed on the base 20 by a fixing seat 33. The pressure vessel 10 is circumferentially supported by the support ring 31, and the anti-wear gasket 32 ​​separates the support ring 31 from the pressure vessel 10 to prevent wear.

[0021] The spraying mechanism 4 includes a spraying pipe 41 and a translation seat 42 fixedly connected to the spraying pipe 41. The translation seat 42 is driven by a cylinder 43 to translate along the base 20. The cylinder 43 is installed on the side of a fixed platform 44. The fixed platform 44 is fixed on the base 20. A translation groove is provided on the top of the base 20. A translation block is connected to the bottom of the translation seat 42. The translation block is arranged in the translation groove and moves horizontally along the translation groove. Figure 3 As shown, a plurality of nozzles 45 are provided at the bottom of the spray tube 41, and spraying is performed through the nozzles 45, and a feeding pipe 46 is connected to one side of the spray tube 41, and material is fed into the spray tube 41 through the feeding pipe 46; heating tubes 47 are respectively installed on both sides of the spray tube 41, and heating wires are installed in the heating tubes 47, and the heating wires are electrically connected to an external power supply. The heating tubes 47 heat and dry the inner wall of the pressure vessel 10 after spraying to prevent the paint from falling off and ensure uniform spraying.

[0022] The above-mentioned components such as the drive motor 15, the rotating motor 21, the nozzle 45, the heating tube 47, etc. are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel in the field through technical manuals or through conventional experimental methods, and will not be elaborated on.

[0023] Working principle: The clamping mechanism 1 is used to clamp the horizontally placed pressure vessel 10, the support frame 11 and the clamping block 13 support the bottom of the horizontally placed pressure vessel 10, and the driving motor 15 drives the gear 16 to rotate. Due to the meshing action, the gear 16 rotates and drives the rack 17 to translate, thereby driving the moving frame 12 to rise and fall, and the moving frame 12 drives the clamping block 13 connected thereto to rise and fall. The clamping block 13 connected to the support frame 11 works together to clamp the pressure vessel 10. Only one clamping block 13 needs to be driven to complete the clamping operation. The clamping operation is more convenient and energy-saving, and the clamping stability is good; the rotating mechanism 2 drives the clamping mechanism 1 and the pressure vessel 10 to rotate, and the rotating motor 21 drives the collar 22 to rotate , thereby driving the support frame 11 to rotate, so that the clamping mechanism 1 drives the pressure vessel 10 to rotate. When the pressure vessel 10 rotates, the pressure vessel 10 is circumferentially supported by the support ring 31 to ensure the stability of the pressure vessel 10 when it rotates; the horizontal movement of the spraying mechanism 4 allows the spraying pipe 41 and the nozzle 45 to enter the interior of the pressure vessel 10, and the inner wall of the pressure vessel 10 is sprayed simultaneously through several nozzles 45. The nozzle 45 does not move, and the pressure vessel 10 rotates, so that the circumferential spraying of the inner wall of the pressure vessel 10 can be achieved, and the spraying efficiency is high; after spraying, the pressure vessel 10 rotates, and the sprayed part can be timely heated and dried by the heating pipe 47 to ensure uniform spraying and ensure the anti-corrosion performance of the pressure vessel 10 after spraying.

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pressure vessel inner wall spraying device, characterized in that: It includes a clamping mechanism, a rotating mechanism, a supporting mechanism and a spraying mechanism; The clamping mechanism includes a support frame, a mobile frame and a clamping block, the support frame is an L-shaped structure, the bottom end of the support frame is connected to the clamping block, the mobile frame is an inverted L-shaped structure, the mobile frame is installed on the upper side of the support frame, the mobile frame is driven by the translation mechanism to translate up and down along the support frame, and the side of the mobile frame away from the support frame is connected to the clamping block through a connecting rod; The rotating mechanism includes a rotating motor, the support frame is provided with a collar, the collar is sleeved on the output shaft of the rotating motor and is fixedly connected thereto, the rotating motor is supported and fixed on the base through a support seat, and the clamping mechanism is driven to rotate by the rotating motor; The support mechanism comprises a support ring, and the support ring is supported and fixed on the base through a fixing seat; The spraying mechanism comprises a spraying pipe and a translation seat fixedly connected to the spraying pipe, the translation seat is driven by a cylinder to translate along the base, a plurality of nozzles are arranged at the bottom of the spraying pipe, and a feed pipe is connected to one side of the spraying pipe; Heating pipes are respectively installed on both sides of the spray pipe.

2. The inner wall spraying device of a pressure vessel according to claim 1, characterized in that: The clamping surface of the clamping block is an arc-shaped groove structure, and the arc-shaped groove structure is arranged corresponding to the outer peripheral shape of the pressure container.

3. The inner wall spraying device of a pressure vessel according to claim 1, characterized in that: The translation mechanism includes a driving motor, a gear and a rack. The driving motor is installed on one side of the support frame. A gear is installed on the output shaft of the driving motor. A rack is installed on the side of the moving frame close to the support frame. The rack is meshed with the gear.

4. The inner wall spraying device of a pressure vessel according to claim 1, characterized in that: A T-shaped slot is provided on one side of the support frame close to the moving frame, and a T-shaped block is connected to one end of the moving frame close to the support frame, and the T-shaped block is arranged in the T-shaped slot. The T-shaped block translates up and down along the T-shaped slot, driving the moving frame to translate up and down along the support frame.

5. The inner wall spraying device of a pressure vessel according to claim 1, characterized in that: The collar and the support frame are connected and fixed by bolts.

6. The inner wall spraying device of a pressure vessel according to claim 1, characterized in that: An anti-wear washer is arranged on the inner periphery of the support ring.

7. The inner wall spraying device of a pressure vessel according to claim 1, characterized in that: The cylinder is installed on the side of the fixed platform, the fixed platform is fixed on the base, the top of the base is provided with a translation groove, the bottom of the translation seat is connected with a translation block, the translation block is arranged in the translation groove and moves horizontally along the translation groove.

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