LNG cryogenic PIR polyisocyanurate shell cold pipe construction installation device and method

Abstract

The application discloses a LNG cryogenic PIR polyisocyanurate pipe shell cold insulation pipe construction installation device and method, and belongs to the technical field of cold insulation installation. The LNG cryogenic PIR polyisocyanurate pipe shell cold insulation pipe construction installation device comprises a storage assembly for storing sealant and a cutting assembly for cutting a pipe shell, which are arranged on a rack; the storage assembly can be horizontally moved under the driving of a first moving assembly; a glue brushing assembly is arranged at the bottom of the storage assembly; the glue brushing assembly comprises a first glue brushing part for brushing glue on a plane and a second glue brushing part for brushing glue on an end face; a clamping assembly for clamping the pipe shell is further arranged at the lower part of the rack; the glue brushing assembly and the cutting assembly can realize automatic cutting and gluing, and can be synchronously operated, so that the work efficiency is greatly improved, the labor intensity is effectively reduced, and the problems of low efficiency and high labor intensity caused by manual gluing and cutting in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of cold insulation installation technology, and in particular to a construction and installation device and method for LNG cryogenic PIR polyisocyanurate pipe shell cold insulation pipe. Background Technology

[0002] During the installation of some liquefied natural gas (LNG) and liquefied petroleum gas (LPG) pipelines, insulation is required to prevent the temperature of the medium inside the pipeline from rising due to external temperature fluctuations, which could lead to vaporization, pressure fluctuations, or even safety hazards. One commonly used insulation material is polyisocyanurate (PIR) pipe shell, which has advantages such as low thermal conductivity, good fire resistance, and high dimensional stability, and is widely used in LNG cryogenic pipeline systems.

[0003] In actual construction, the installation of PIR pipe shells still presents many inconveniences. The existing pipe shells are usually semi-circular, consisting of two semi-circular shells fitted onto the pipe and bonded together with sealant. However, the traditional manual adhesive application method is inefficient, with uneven adhesive layer thickness, and prone to missed areas or accumulation, affecting bonding strength and sealing performance. In addition, since the length of the pipe shell is usually a fixed size, while the pipe length varies, the pipe shell sometimes needs to be cut during installation. On-site cutting and adhesive application are often carried out in separate steps and are done manually, resulting in low efficiency and high labor intensity.

[0004] To address the aforementioned issues, this application proposes a construction and installation device and method for LNG cryogenic PIR polyisocyanurate pipe shell insulation pipe. Summary of the Invention

[0005] The purpose of this invention is to solve the problems of low efficiency and high labor intensity caused by manual gluing and cutting in the prior art, and to propose a construction and installation device and method for LNG cryogenic PIR polyisocyanurate pipe shell cold insulation pipe.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An installation device for LNG cryogenic PIR polyisocyanurate (PIR) pipe insulation includes a frame and a pipe shell to be coated with sealant. The pipe shell has two planes and two end faces. A first guide rod is fixedly installed on the top of the frame. The device also includes a material storage assembly for storing sealant and a cutting assembly for cutting the pipe shell, both mounted on the frame. The material storage assembly can move horizontally under the drive of a first moving assembly. A sealant application assembly is installed at the bottom of the material storage assembly. The sealant application assembly includes a first application part for applying sealant to the planes and a second application part for applying sealant to the end faces. A clamping assembly for fixing and holding the pipe shell is also provided at the lower part of the frame.

[0007] Preferably, the storage assembly includes a storage bin and a feeding assembly disposed inside the storage bin. The feeding assembly includes a rotating shaft and a spiral blade fixedly disposed at the lower part of the rotating shaft. The rotating shaft is driven to rotate by a first driving member, and the storage bin is connected to a first moving assembly.

[0008] Preferably, the first adhesive application section includes a first discharge pipe disposed at the bottom of the storage tank, a first valve is disposed on the first discharge pipe, and a scraper is fixedly disposed on the outer ring surface of the first discharge pipe.

[0009] Preferably, the second adhesive application part includes a first bracket and a rotating rod rotatably mounted on the first bracket. A brush plate is hinged to the end of the rotating rod, and an elastic sheet is provided between the brush plate and the rotating rod. Two brush plates are provided at the same end of the rotating rod. The rotating rod is driven to rotate by a second driving member. The second adhesive application part also includes a first lifting assembly for driving the first bracket to move up and down.

[0010] Preferably, the second adhesive application section further includes a second discharge pipe fixedly disposed at the bottom of the storage tank and a second valve disposed on the second discharge pipe, wherein the brush plate can contact the end of the second discharge pipe.

[0011] Preferably, the cutting assembly includes a second bracket and a cutting blade rotatably mounted on the second bracket. The cutting blade is driven to rotate by a third driving member. The cutting assembly also includes a second lifting assembly for moving the second bracket up and down. The second bracket is connected to the second moving assembly.

[0012] Preferably, the clamping assembly includes a base, which is fixedly disposed at the lower part of the frame. A second guide rod is fixedly disposed on the base, and a plurality of clamping parts are disposed on the second guide rod. A positioning plate is fixedly disposed at the end of the base away from the cutting assembly.

[0013] Preferably, the clamping part includes a support bracket and a pressure rod, the support bracket is slidably disposed on the second guide rod, the pressure rod is rotatably disposed on the support bracket, and the pressure rod is driven to rotate by a fourth driving member.

[0014] Preferably, the clamping assembly further includes a limiting component for limiting the clamping part. The limiting component includes a positioning rod, a screw, and a slot disposed at the bottom of the support bracket. Both ends of the positioning rod are slidably connected to the base. The screw is threadedly connected to the base and its inner end is rotatably connected to the positioning rod. The positioning rod is located in the slot and limits the support bracket by friction.

[0015] A construction method for installing LNG cryogenic PIR polyisocyanurate insulated pipes includes the following steps: Step 1: Place the tube shell to be coated horizontally on the clamping assembly for positioning and fixation; Step 2: Use the first moving component to drive the storage component to move horizontally, so that it moves to the top of the tube shell; Step 3: The first moving component continues to drive the discharging component to move, while the first glue application part applies glue to the flat surface of the tube shell. Step 4: When moving to the end of the tube shell, apply adhesive to the end face of the tube shell using the second adhesive applicator. Step 5: If the tube shell still needs to be cut in step 2, the cutting length is preset, and the tube shell is cut synchronously using the cutting component. After the cutting is completed, the cutting component is moved away from the tube shell to avoid hindering the application of adhesive to the end face. Step 6: After the adhesive is applied, loosen the clamping assembly and remove the tube shell to proceed to the next process.

[0016] Compared with the prior art, the present invention provides an installation device and method for LNG cryogenic PIR polyisocyanurate pipe shell cold insulation pipe, which has the following beneficial effects.

[0017] 1. This invention, through the setting of the glue application component and the cutting component, can achieve the effect of automatic cutting and glue application, and the two can operate synchronously, which greatly reduces work efficiency and effectively reduces manual labor intensity, thereby solving the problems of low efficiency and high labor intensity caused by manual glue application and cutting in the prior art.

[0018] 2. The present invention, through the cooperation of the first glue application part and the second glue application part, can automatically apply glue to the bonding plane and end face of the tube shell respectively, ensuring that each bonding surface can be effectively glued.

[0019] 3. In this invention, the double brush plate structure and elastic sheet set at the end of the rotating rod enable the brush plate to adapt to the shape of the tube end face. For example, the uncut tube end has a stepped connecting groove or protrusion, while the cut end face is flat. This double brush plate setting can adapt to different end face structures.

[0020] 4. The present invention, through the sliding engagement of the support bracket on the second guide rod and the adjustable limiting component, enables the clamping component to be adapted to clamping and fixing tube shells of different lengths, thus having a wider range of applications.

[0021] 5. In this invention, by setting multiple sets of clamping parts, an avoidance system can be formed during the glue application process. That is, after the glue application component moves to the nearest clamping part, the clamping part can release its grip without affecting the glue application component's passage through this point, while the other clamping parts in the multiple sets of clamping parts still fix the tube shell.

[0022] Other advantages, objectives and features of the invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be learned from practice of the invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the clamping component in this invention.

[0025] Figure 3 This is a partial structural diagram of the clamping component in this invention.

[0026] Figure 4 This is a schematic diagram of the clamping part in this invention.

[0027] Figure 5 This is a schematic diagram of the material storage component and the adhesive application component in this invention.

[0028] Figure 6 This is a cross-sectional structural diagram of the material storage component and the adhesive application component in this invention.

[0029] Figure 7 This is a schematic diagram of the structure of the second adhesive application part in this invention.

[0030] Figure 8 This is a schematic diagram of the material storage component in this invention.

[0031] Figure 9 This is a cross-sectional structural diagram of the material storage component in this invention.

[0032] Figure 10 This is a schematic diagram of the cutting component in the present invention. Figure 1 .

[0033] Figure 11 This is a schematic diagram of the cutting component in the present invention. Figure 2 .

[0034] Figure 12 This is a schematic diagram of the shell structure in this invention.

[0035] In the picture: 1. Frame; 2. First valve; 3. Storage hopper; 4. First motor; 5. First mounting bracket; 6. First telescopic rod; 7. First limit rod; 8. Second lead screw; 9. Fixing bracket; 10. First guide rod; 11. Second telescopic rod; 12. Second limit rod; 13. Second mounting bracket; 14. First lead screw; 15. Second motor; 16. Second bracket; 17. Cutting disc; 18. Base; 19. Screw; 20. Second guide rod; 2 1. Support bracket; 22. Pressure rod; 23. Third motor; 24. First bracket; 25. Second discharge pipe; 26. Second valve; 27. First discharge pipe; 28. Scraper; 29. ​​Positioning rod; 30. Positioning plate; 31. Fourth motor; 32. Support; 33. Slot; 34. Rotating shaft; 35. Brush plate; 36. Elastic sheet; 37. Rotating rod; 38. Stirring blade; 39. Spiral blade; 40. Tube shell; 41. Plane; 42. End face. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0037] Please refer to Figures 1-12 An installation device for LNG cryogenic PIR polyisocyanurate pipe shell insulation includes a frame 1 and a pipe shell 40 to be coated with sealant. The pipe shell 40 has two planes 41 and two end faces 42. A first guide rod 10 is fixedly installed on the top of the frame 1. The device also includes a material storage assembly for storing sealant and a cutting assembly for cutting the pipe shell 40, which are installed on the frame 1. The material storage assembly can move horizontally under the drive of a first moving assembly. A sealant application assembly is installed at the bottom of the material storage assembly. The sealant application assembly includes a first application part for applying sealant to the planes 41 and a second application part for applying sealant to the end faces 42. A clamping assembly for fixing and holding the pipe shell 40 is also provided at the lower part of the frame 1.

[0038] In a specific embodiment of the present invention, the cutting component is mainly used to cut the pipe shell 40. Different numbers and lengths of pipe shells 40 are selected and combined according to different pipe lengths. For example, if the pipe to be covered is three meters long and a single pipe shell 40 is two meters long, then during the installation process, a complete pipe shell 40 plus a one-meter section of pipe shell 40 can be used for covering. The material storage component is mainly used to hold low-temperature sealant. During covering, the low-temperature sealant is used to splice and cover a pair of pipe shells 40. The glue application component is mainly used to automatically apply glue to the pipe shell 40. The first glue application part applies glue to the end face 42 of the pipe shell 40, and the second glue application part applies glue to the plane 41 of the pipe shell 40. The clamping component can fix the position of the pipe shell 40 to prevent the position of the pipe shell 40 from changing during the glue application or cutting process.

[0039] Specifically, the first moving component includes a first lead screw 14 and a first mounting bracket 5. The first lead screw 14 is rotatably mounted on the top of the frame 1, and the first mounting bracket 5 is slidably mounted on the first guide rod 10. The first mounting bracket 5 is threadedly connected to the first lead screw 14. The first lead screw 14 is driven to rotate by a motor, which can be a servo motor. In use, the motor drives the first lead screw 14 to rotate, thereby enabling the first mounting bracket 5 to move horizontally on the first guide rod 10, which in turn drives the material storage component to move horizontally.

[0040] Specifically, the second moving component includes a second lead screw 8 and a second mounting bracket 13. The second lead screw 8 is rotatably mounted on the top of the frame 1, and the second mounting bracket 13 is slidably mounted on the first guide rod 10. The second mounting bracket 13 is threadedly connected to the second lead screw 8. The second lead screw 8 is driven to rotate by a motor, which can be a servo motor. In use, the motor drives the second lead screw 8 to rotate, thereby enabling the second mounting bracket 13 to move horizontally on the first guide rod 10, which in turn drives the cutting component to move horizontally.

[0041] The storage assembly includes a storage bin 3 and a feeding assembly disposed inside the storage bin 3. The feeding assembly includes a rotating shaft 34 and a spiral blade 39 fixedly disposed at the lower part of the rotating shaft 34. The rotating shaft 34 is driven to rotate by a first driving member. The storage bin 3 is connected to a first moving assembly.

[0042] Specifically, the top surface of the storage tank 3 is fixedly connected to the bottom surface of the first mounting frame 5. The storage tank 3 is funnel-shaped, and the spiral blade 39 is located inside the bottom cylindrical part of the storage tank 3. The first driving component is the first motor 4, which is fixedly mounted on the first mounting frame 5. The output end of the first motor 4 is connected to the top end of the rotating shaft 34. In use, the first motor 4 can drive the rotating shaft 34 to rotate, and the rotating shaft 34 drives the spiral blade 39 to rotate, thereby achieving the effect of extruding low-temperature sealant downwards. The first motor 4 can be a servo motor. A stirring blade 38 is fixedly mounted on the upper part of the rotating shaft 34. When the spiral blade 39 extrudes the sealant, the stirring blade 38 can also rotate, thereby stirring the sealant and preventing it from solidifying.

[0043] The first adhesive application section includes a first discharge pipe 27 located at the bottom of the storage tank 3, a first valve 2 installed on the first discharge pipe 27, and a scraper 28 fixedly installed on the outer ring surface of the first discharge pipe 27.

[0044] Specifically, the first discharge pipe 27 and the first valve 2 are symmetrically arranged in two sets, corresponding to the two planes 41 of the pipe shell 40 respectively. In use, the first moving component drives the storage component to move, and after the first discharge pipe 27 is positioned on the plane 41, the first valve 2 opens, and the spiral blade 39 extrudes the sealant, so that the sealant adheres to the plane 41. The first moving component continues to drive the storage component to move, and then the first discharge pipe 27 moves on the plane 41 while extruding the sealant. Subsequently, the scraper 28 scrapes the extruded sealant to make it easier for the two pipe shells 40 to be joined and bonded, thereby achieving the effect of automatically applying glue to the plane 41.

[0045] The second adhesive application unit includes a first bracket 24 and a rotating rod 37 rotatably mounted on the first bracket 24. A brush plate 35 is hinged to the end of the rotating rod 37. An elastic sheet 36 is provided between the brush plate 35 and the rotating rod 37. Two brush plates 35 are provided at the same end of the rotating rod 37. The rotating rod 37 is driven to rotate by a second driving member. The second adhesive application unit also includes a first lifting assembly for driving the first bracket 24 to move up and down.

[0046] Specifically, brush plates 35 are provided at both ends of the rotating rod 37, totaling four sets of brush plates 35, arranged in pairs, so that the second brushing part can adapt to end faces 42 of different shapes (cut planes or uncut stepped surfaces). The elastic sheet 36 is V-shaped, with one end fixedly connected to the rotating rod 37 and the other end abutting against the brush plate 35. The elastic sheet 36 ensures that the brush plate 35 can always fit against the end face 42 or the end face of the second discharge pipe 25. The second driving component includes a third motor 23, which is fixedly mounted on the first bracket 24. The output shaft of the third motor 23 is fixedly connected to the rotating rod 37. In use, the third motor 23 can drive the rotating rod 37 to rotate, so that the brush plates 35 alternately pass through the end face 42 of the second discharge pipe 25 and the pipe shell 40. The third motor 23 can be a servo motor.

[0047] Specifically, the first lifting assembly includes a fixed frame 9, a first telescopic rod 6, and a first limiting rod 7. The fixed frame 9 is fixedly mounted on the storage bin 3. The first telescopic rod 6 is fixedly mounted on the bottom of the fixed frame 9, and its telescopic end is fixedly connected to the first support 24. The bottom end of the first limiting rod 7 is fixedly connected to the first support 24, and the first limiting rod 7 is slidably connected to the fixed frame 9. In use, the telescopic movement of the first telescopic rod 6 drives the first support 24 to move up and down. Through the first lifting assembly, an obstacle avoidance function can be achieved. When applying glue to the plane 41, the first lifting assembly drives the second glue brushing part to move upward to avoid the second glue brushing part being blocked by the tube shell 40. When applying glue to the end face 42, the first lifting assembly drives the second glue brushing part to move downward, so that the rotating rod 37 is coaxial with the tube shell 40. At this time, when the rotating rod 37 rotates, the brush plate 35 can sweep the end face 42. The first telescopic rod 6 can be an electric telescopic rod.

[0048] The second adhesive application section also includes a second discharge pipe 25 fixedly installed at the bottom of the storage tank 3 and a second valve 26 installed on the second discharge pipe 25, and the brush plate 35 can contact the end of the second discharge pipe 25.

[0049] Specifically, when applying adhesive to the surface 41, the second valve 26 is closed. When applying adhesive to the end face 42, the first valve 2 is closed and the second valve 26 is opened. Under the action of the spiral blade 39, the sealant is slowly squeezed out. At this time, the rotating rod 37 also starts to rotate, causing the brush plate 35 to rotate. When the brush plate 35 passes the end of the second discharge pipe 25, it can scrape away the sealant (a commonly used sealant in the field, which is usually highly viscous and will not drip easily). Then, after the brush plate 35 passes the end face 42, it applies adhesive to the end face 42. It should be noted that the rotation speed of the rotating rod 37 should not be too fast, otherwise the sealant will be thrown off due to centrifugal force. In addition, in this solution, only one end face 42 of the tube shell 40 is coated with adhesive. That is to say, the other end face 42 without adhesive is connected to the next section with adhesive.

[0050] The cutting assembly includes a second bracket 16 and a cutting blade 17 rotatably mounted on the second bracket 16. The cutting blade 17 is driven to rotate by a third driving member. The cutting assembly also includes a second lifting assembly for moving the second bracket 16 up and down. The second bracket 16 is connected to the second lifting assembly.

[0051] Specifically, the second lifting assembly includes a second telescopic rod 11 and a second limiting rod 12. The bottom end of the second limiting rod 12 is fixedly connected to the second bracket 16, and the second limiting rod 12 is slidably connected to the second mounting frame 13. The second telescopic rod 11 is fixedly mounted on the second mounting frame 13, and the telescopic end of the second telescopic rod 11 is fixedly connected to the second bracket 16. In use, the telescopic movement of the second telescopic rod 11 drives the second bracket 16 to move up and down. The second telescopic rod 11 can be an electric telescopic rod.

[0052] Specifically, the third driving component includes a second motor 15 and a pulley assembly. The second motor 15 is fixedly mounted on the second bracket 16, and the cutting blade 17 is rotatably mounted on the second bracket 16 via a rotating shaft. One pulley of the pulley assembly is fixedly connected to the output end of the second motor 15, and the other pulley is fixedly connected to the rotating shaft. The belt in the belt assembly connects the two pulleys. In use, the second motor 15 drives the cutting blade 17 to rotate.

[0053] When the cutting assembly is in use, the second moving assembly drives the cutting assembly to the cutting position, and then the second motor 15 drives the cutting blade 17 to rotate, and then cuts the tube shell 40 downward under the drive of the second lifting assembly.

[0054] The clamping assembly includes a base 18, which is fixedly installed at the lower part of the frame 1. A second guide rod 20 is fixedly installed on the base 18, and a number of clamping parts are provided on the second guide rod 20. A positioning plate 30 is fixedly installed on the end of the base 18 away from the cutting assembly.

[0055] Specifically, the positioning plate 30 is used to position the tube shell 40. After the tube shell 40 is placed on the clamping assembly, the non-adhesive end of the tube shell 40 rests on the positioning plate 30 to position the tube shell 40, which facilitates subsequent cutting positioning and end face 42 adhesive positioning. That is, the length of the tube shell 40 is fixed. After the length to be retained is set, the cutting assembly can move directly to the cutting position. The distance between the cutting position and the positioning plate 30 is the length to be retained. Similarly, the end face 42 adhesive is positioned in the same way.

[0056] The clamping part includes a support 21 and a pressure rod 22. The support 21 is slidably disposed on the second guide rod 20, and the pressure rod 22 is rotatably disposed on the support 21. The pressure rod 22 is driven to rotate by a fourth driving member.

[0057] Specifically, a support 32 is fixedly installed on the support bracket 21. One end of the pressure rod 22 is hinged to the support 32 via a shaft, and the other end can press against the inner ring surface of the tube shell 40. The fourth driving component is a fourth motor 31, which is fixedly installed on the support 32. The output shaft of the fourth motor 31 is connected to the shaft of the pressure rod 22. In use, the rotation of the fourth motor 31 can drive the pressure rod 22 to rotate around its shaft, thereby achieving the effect of clamping and releasing. The fourth motor 31 can be a servo motor.

[0058] By setting multiple sets of clamping parts, the effect of avoiding the glue application component can be achieved. That is, multiple sets of clamping parts clamp the tube shell 40 at the same time. When the glue application component moves, it will be obstructed by the pressure rod 22 in the clamping part. When the glue application component moves to the nearest clamping part, the pressure rod 22 of the clamping part can open to avoid the glue application component, while other clamping parts continue to clamp the tube shell 40. After the glue application component passes the pressure rod 22 of the clamping part, the pressure rod 22 will reset to clamp, and the pressure rod 22 of the next clamping part will open, thus achieving the effect of avoiding the glue application component.

[0059] The clamping assembly also includes a limiting component for limiting the clamping part. The limiting component includes a positioning rod 29, a screw 19, and a slot 33 provided at the bottom of the support bracket 21. Both ends of the positioning rod 29 are slidably connected to the base 18. The screw 19 is threadedly connected to the base 18, and its inner end is rotatably connected to the positioning rod 29. The positioning rod 29 is located in the slot 33 and limits the support bracket 21 by friction.

[0060] Specifically, in this design, five sets of clamping parts are provided; the positioning rod 29 is located in the slots 33 of the five sets of clamping parts at the same time, and the five sets of clamping parts are positioned and limited by friction; when the position needs to be adjusted, the screw 19 is turned to move the positioning rod 29 away from the slot 33, and the limitation is released. At this time, the position of the clamping part can be adjusted. After the adjustment is completed, the screw 19 is turned in the opposite direction to move the positioning rod 29 into the slot 33 and firmly press against the slot 33 to achieve positioning and limitation.

[0061] A construction method for installing LNG cryogenic PIR polyisocyanurate insulated pipes includes the following steps: Step 1: Place the tube shell 40 to be coated with adhesive horizontally on the clamping assembly for positioning and fixation; Step 2: Use the first moving component to drive the storage component to move horizontally, so that it moves above the shell 40; Step 3: The first moving component continues to drive the discharging component to move, while the first glue application part applies glue to the plane 41 of the tube shell 40. Step 4: When moving to the end of the tube shell 40, apply adhesive to the end face 42 of the tube shell 40 using the second adhesive application part. Step 5: If the tube shell 40 still needs to be cut in step 2, the cutting length is preset, and the tube shell 40 is cut synchronously using the cutting component. After the cutting is completed, the cutting component is moved away from the tube shell 40 to avoid hindering the application of glue to the end face 42. Step 6: After the adhesive is applied, loosen the clamping assembly and remove the tube shell 40 to proceed to the next process.

[0062] Workflow: The tube shell 40 is placed on the support bracket 21, with one end of the tube shell 40 pressing against the positioning plate 30. Then, the pressure rods 22 of each clamping part rotate to press and fix the tube shell 40 onto the support bracket 21. If the tube shell 40 needs to be cut, the second moving component drives the cutting component to move to the preset cutting position. The second motor 15 drives the cutting blade 17 to rotate, and the second lifting component drives the cutting blade 17 to move down to complete the cutting. After the cutting is completed, the cutting component resets. At the same time, the glue application component starts the glue application operation from the end of the tube shell 40 near the positioning plate 30. The first moving component drives the material storage component to move, and the first glue brushing part first applies glue to the two planes 41 of the tube shell 40. During the glue application process, the first lifting component drives the second glue brushing part to stay in the upper avoidance position. When applying glue to the plane 41, the first valve... Door 2 is opened and the second valve 26 is closed. The first moving component drives the storage component to move at a constant speed. The first discharge pipe 27 extrudes the sealant. The scraper 28 moves with the storage component to smooth the sealant. After the sealant is applied to the surface 41, the first valve 2 is closed. The first lifting component drives the second brushing part to move down, so that the rotating rod 37 is coaxially aligned with the tube shell 40. The second valve 26 is opened. The third motor 23 drives the rotating rod 37 to rotate at a low speed. The brush 35 scrapes the sealant from the end of the second discharge pipe 25 in sequence, and then rotates to the end face 42 of the tube shell 40 to be coated, applying the sealant to the end face 42. After the sealant is applied to the end face 42, the second valve 26 is closed, the second brushing part is reset and lifted, and the storage component is reset as a whole. At this time, the tube shell 40 with the sealant applied can be taken out for on-site splicing and wrapping operations.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An installation device for LNG cryogenic PIR polyisocyanurate pipe shell insulation, comprising a frame (1) and a pipe shell (40) to be coated with adhesive, the pipe shell (40) having two planes (41) and two end faces (42), and a first guide rod (10) fixedly disposed on the top of the frame (1), characterized in that, It also includes a material storage assembly for storing sealant and a cutting assembly for cutting the tube shell (40) on the frame (1). The material storage assembly can move horizontally under the drive of the first moving assembly. A glue brushing assembly is provided at the bottom of the material storage assembly. The glue brushing assembly includes a first glue brushing part for brushing glue on the plane (41) and a second glue brushing part for brushing glue on the end face (42). A clamping assembly for fixing and holding the tube shell (40) is also provided at the lower part of the frame (1).

2. The LNG cryogenic PIR polyisocyanurate pipe shell and cold insulation pipe construction and installation device according to claim 1, characterized in that, The storage assembly includes a storage bin (3) and a feeding assembly disposed inside the storage bin (3). The feeding assembly includes a rotating shaft (34) and a spiral blade (39) fixedly disposed at the lower part of the rotating shaft (34). The rotating shaft (34) is driven to rotate by a first driving member. The storage bin (3) is connected to a first moving assembly.

3. The LNG cryogenic PIR polyisocyanurate pipe shell and cold insulation pipe construction and installation device according to claim 2, characterized in that, The first adhesive application section includes a first discharge pipe (27) located at the bottom of the storage tank (3), a first valve (2) is provided on the first discharge pipe (27), and a scraper (28) is fixedly provided on the outer ring surface of the first discharge pipe (27).

4. The LNG cryogenic PIR polyisocyanurate pipe shell cold insulation pipe construction and installation device according to claim 2, characterized in that, The second adhesive application part includes a first bracket (24) and a rotating rod (37) rotatably mounted on the first bracket (24). A brush plate (35) is hinged to the end of the rotating rod (37). An elastic sheet (36) is provided between the brush plate (35) and the rotating rod (37). Two brush plates (35) are provided at the same end of the rotating rod (37). The rotating rod (37) is driven to rotate by a second driving member. The second adhesive application part also includes a first lifting assembly for driving the first bracket (24) to move up and down.

5. The LNG cryogenic PIR polyisocyanurate pipe shell and cold insulation pipe construction and installation device according to claim 4, characterized in that, The second adhesive application section also includes a second discharge pipe (25) fixedly disposed at the lower part of the storage tank (3) and a second valve (26) disposed on the second discharge pipe (25), wherein the brush plate (35) can contact the end of the second discharge pipe (25).

6. The LNG cryogenic PIR polyisocyanurate pipe shell and cold insulation pipe construction and installation device according to claim 1, characterized in that, The cutting assembly includes a second bracket (16) and a cutting blade (17) rotatably mounted on the second bracket (16). The cutting blade (17) is driven to rotate by a third driving member. The cutting assembly also includes a second lifting assembly for driving the second bracket (16) to move up and down. The second bracket (16) is connected to the second moving assembly.

7. The LNG cryogenic PIR polyisocyanurate pipe shell and cold insulation pipe construction and installation device according to claim 1, characterized in that, The clamping assembly includes a base (18), which is fixedly disposed at the lower part of the frame (1). A second guide rod (20) is fixedly disposed on the base (18), and a number of clamping parts are disposed on the second guide rod (20). A positioning plate (30) is fixedly disposed at one end of the base (18) away from the cutting assembly.

8. The LNG cryogenic PIR polyisocyanurate pipe shell and cold insulation pipe construction and installation device according to claim 7, characterized in that, The clamping part includes a support bracket (21) and a pressure rod (22). The support bracket (21) is slidably disposed on the second guide rod (20), and the pressure rod (22) is rotatably disposed on the support bracket (21). The pressure rod (22) is driven to rotate by a fourth driving member.

9. The LNG cryogenic PIR polyisocyanurate pipe shell and cold insulation pipe construction and installation device according to claim 8, characterized in that, The clamping assembly also includes a limiting assembly for limiting the clamping part. The limiting assembly includes a positioning rod (29), a screw (19), and a slot (33) provided at the bottom of the support bracket (21). Both ends of the positioning rod (29) are slidably connected to the base (18). The screw (19) is threadedly connected to the base (18), and its inner end is rotatably connected to the positioning rod (29). The positioning rod (29) is located in the slot (33) and limits the support bracket (21) by friction.

10. A construction method for installing an LNG cryogenic PIR polyisocyanurate pipe shell and insulation pipe according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Place the tube shell (40) to be coated with glue horizontally on the clamping assembly for positioning and fixation; Step 2: Use the first moving component to drive the storage component to move horizontally, so that it moves above the tube shell (40); Step 3: The first moving component continues to drive the discharge component to move, while the first glue application part applies glue to the plane (41) of the tube shell (40); Step 4: When moving to the end of the tube shell (40), apply adhesive to the end face (42) of the tube shell (40) using the second adhesive application part; Step 5: If the tube shell (40) still needs to be cut in step 2, the cutting length is preset, and the tube shell (40) is cut synchronously using the cutting component. After the cutting is completed, the cutting component is moved away from the tube shell (40) to avoid hindering the application of glue to the end face (42). Step 6: After the glue is applied, loosen the clamping assembly and remove the tube shell (40) to proceed to the next process.

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