Hydraulic steel pipe assembly pickling and drying device

Abstract

The application discloses a kind of hydraulic steel pipe assembly pickling drying device, including pickling pool, chamber is opened in the opposite side wall of pickling pool, the pickling liquid in pickling pool is circulated by circulation mechanism in two side chambers, chamber outer wall is connected with drying mechanism, chamber inner wall is opened with several connecting holes being communicated with pickling pool, connecting hole connects telescopic pipe, two sides corresponding telescopic pipe connects the both ends of hydraulic pipe, and hydraulic pipe is placed on the vibration frame of vibration mechanism;The application integrates pickling and drying function, can batch pickling to hydraulic pipe assembly, and is equipped with vibration mechanism to improve derusting effect, and the device is suitable for various pipe types, without repeatedly carrying, loading and unloading pipe material, save manpower cost and operation time.

Description

Technical Field

[0001] This invention relates to the field of pickling and drying equipment technology, and specifically to a hydraulic steel pipe assembly pickling and drying device. Background Technology

[0002] Pipeline pickling removes scale, rust, and oil from pipe surfaces through chemical action, cleaning the metal surface and ensuring the inner walls of the pipes meet specified cleanliness standards. Therefore, this process is commonly used in hydraulic pipelines with high requirements. Pipeline pickling methods can be divided into tank-type and circulating types. With the development of hydraulic technology and the increasing demands for system cleanliness, circulating pickling is becoming increasingly prevalent, its main advantages being fast pickling speed and high quality pass rate. However, drying is required after pickling, and ordinary circulating pickling devices lack drying capabilities. Therefore, the pickled pipelines must be disassembled and transported to drying equipment. This process reduces pickling efficiency, consumes significant manpower, is prone to danger during pipeline disassembly and transportation, and poses a possibility of secondary contamination. A new type of equipment integrating pickling and drying functions is needed to solve these problems. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a pickling and drying device for a hydraulic steel pipe assembly, comprising a pickling tank, chambers formed in the two opposite side walls of the pickling tank, a circulation mechanism for circulating pickling liquid within the pickling tank in the two side chambers, a drying mechanism connected to the outer wall of the chambers, and several connecting holes in the inner wall of the chambers connecting to the pickling tank, the connecting holes connecting to telescopic chutes, the two sides of the corresponding telescopic chutes connecting to the two ends of a hydraulic pipe, the hydraulic pipe being placed on the vibration frame of the vibration mechanism.

[0004] Furthermore, the circulation mechanism includes a circulation pump, the outlet pipe of which is connected to one side chamber, the inlet pipe of which is connected to the floor drain in the pickling tank, and a filter is installed on the inlet pipe. The floor drain in the other side chamber is connected to the inlet of the drain pump, and the outlet of the drain pump is connected to the inside of the pickling tank.

[0005] Furthermore, the drying mechanism includes a blower, an air inlet pipe connected to an air filter, an exhaust pipe with a heating pipe, and an exhaust pipe flange connected to a vent on the outer wall of the chamber. The vent is equipped with a filter screen cover and a sealing cover.

[0006] Furthermore, the drying mechanism is placed on a movable carrier.

[0007] Furthermore, the vibration mechanism includes a motor, which is mounted on a bracket on the remaining two side walls of the pickling tank. The motor output is connected to a vibrator via a universal joint. The vibrator is mounted on the top of the vibration frame. The two side plates of the vibration frame are slidably connected to the two side slides of the pickling tank. The slides are in elastic contact with the bottom surface of the side plates. A frame rod is connected between the two side plates, and hydraulic pipes are placed on the frame rod.

[0008] Furthermore, the bottom surface of the side plate has a slot, through which a rod is slidably connected to the bottom surface of the slide block. The rod is fitted with a spring, and the two ends of the spring contact the bottom surfaces of the slide block and the side plate, respectively.

[0009] Furthermore, a vertical groove is provided on the side plate, and the groove is slidably connected to the end of the support rod with a positioning pin, so that the support rod can be used to support the heating pipe.

[0010] Furthermore, the connecting hole threaded connection is used to connect the telescopic chute, and the connecting hole can also connect the hole cover to the flexible air duct.

[0011] Furthermore, the telescopic chute is adapted to the diameter of various hydraulic pipe models via a flexible adapter.

[0012] Furthermore, the top surfaces of the remaining two side walls of the pickling tank are slidably connected to the bottom surfaces of the horizontal plates of the split-shell. A heating wire is installed in the recessed part in the middle of the bottom surface of the horizontal plate. A flange through hole is opened on the top surface of the horizontal plate, which can connect the fan and the exhaust cover. A pulley is installed on the bottom surface of the vertical plate of the split-shell, and the pulley is in contact with the bottom surface.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention integrates pickling and drying functions, enabling batch pickling of hydraulic pipe assemblies. During the pickling process, the hydraulic pipes can be vibrated and rust removed by a vibration mechanism. The device is suitable for various pipe types, especially for cyclic pickling of complex branch pipe assemblies. Throughout the pickling and drying process, there is no need to repeatedly handle, load and unload the pipes, saving labor costs and working time, and it is less likely to cause secondary pollution. Attached Figure Description

[0015] Figure 1 This is a partial cross-sectional view of the front structure of the present invention;

[0016] Figure 2 This is a partial sectional view of the side structure of the present invention;

[0017] Figure 3 This is a partial top sectional view of the upper structure of the present invention;

[0018] Figure 4 This is a partial top sectional view of the lower structure of the present invention;

[0019] Figure 5 This is a partial cross-sectional view of the top structure of the opening shell in this invention;

[0020] Figure 6 This is a partial sectional view of the side structure of the opening shell in this invention.

[0021] The reference numerals in the attached drawings are explained as follows: 1. Pickling tank; 101. Chamber; 102. Connecting hole; 103. Vent; 104. Slide seat; 105. Insert rod; 2. Telescopic chute; 3. Hydraulic pipe; 4. Vibration frame; 401. Side plate; 402. Frame rod; 403. Slot; 5. Circulation pump; 6. Filter; 7. Blower; 8. Air filter; 9. Heating tube; 10. Carrier; 11. Motor; 12. Bracket; 13. Vibrator; 14. Spring; 15. Hole cover; 16. Flexible air duct; 17. Sealing shell; 1701. Flange through hole; 18. Heating wire; 19. Fan; 20. Exhaust cover; 21. Pulley; 22. Drain pump; 23. Flexible adapter. Detailed Implementation

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1 to 6 As shown, a pickling and drying device for a hydraulic steel pipe assembly includes a pickling tank 1. Two opposite side walls of the pickling tank 1 have chambers 101. The pickling solution in the pickling tank 1 is circulated through the two chambers 101 by a circulation mechanism. The circulation mechanism includes a circulation pump 5. The outlet pipe of the circulation pump 5 is connected to one side chamber 101, and the inlet pipe of the circulation pump 5 is connected to an inlet drain in the pickling tank 1. A filter 6 is installed on the inlet pipe. The inlet drain of the other side chamber 101 is connected to the inlet of a drain pump 22, and the outlet of the drain pump 22 is connected to the interior of the pickling tank 1. The operator can replenish the pickling solution through the flange on the filter 6. When it is necessary to drain the pickling solution from the pickling tank 1, the outlet pipe of the circulation pump 5 can be connected to a wastewater tank for emptying (see...). Figure 5Since the pickling process can be divided into multiple steps such as pickling solution and phosphating solution immersion, after draining one working solution, another working solution can be injected to carry out subsequent steps.

[0026] In this embodiment, a drying mechanism is connected to the outer wall of the chamber 101, and the drying mechanism is placed on a movable carrier 10 (such as a trolley). The drying mechanism includes a blower 7, an air inlet pipe of which is connected to an air filter 8, and an exhaust pipe of the blower 7 equipped with a heating pipe 9. The exhaust pipe flange is connected to a vent 103 on the outer wall of the chamber 101, and the vent 103 is equipped with a filter screen cover and a sealing cover. During the drying operation, the blower 7 blows air through one vent 103, and the other vent 103 is equipped with a filter screen cover as an air outlet. After drying for a period of time, the connections can be swapped to make the drying effect more uniform.

[0027] In this embodiment, the inner wall of the chamber 101 has several connecting holes 102 that connect to the pickling tank 1. The connecting holes 102 are threaded to the telescopic chute 2. The connecting holes 102 can also connect the hole cover 15 and the flexible air duct 16. The telescopic chute 2 on both sides is connected to the two ends of the hydraulic pipe 3. The telescopic chute 2 is adapted to the pipe diameter of various models of hydraulic pipe 3 through the elastic adapter 23. The branch pipe of the hydraulic pipe 3 can also be connected to the chamber 101 through the telescopic chute 2. The hydraulic pipe 3 is placed on the excitation frame 4 of the excitation mechanism.

[0028] In this embodiment, the vibration mechanism includes a motor 11, which is mounted on supports 12 on the remaining two side walls of the pickling tank 1. The output end of the motor 11 is connected to a vibrator 13 via a universal joint. The vibrator 13 is mounted on the top of the vibration frame 4. The two side plates 401 of the vibration frame 4 are slidably connected to the two side slides 104 of the pickling tank 1. The bottom surface of the side plate 401 has a slot 403, which is slidably connected to a rod 105 on the bottom surface of the slide 104. The rod 105 is fitted with a spring 14, and the two ends of the spring 14 are in contact with the bottom surface of the slide 104 and the side plate 401, respectively. The side plate 401 has a vertical groove 404, which is slidably connected to the end of the support rod 402 with a positioning pin. The hydraulic pipe 3 is placed on the support rod 402, which can also be used to support a heating pipe (not shown in the figure).

[0029] In this embodiment, the top surfaces of the remaining two side walls of the pickling tank 1 are slidably connected to the bottom surfaces of the horizontal plates of the split-shell 17. A heating wire 18 is installed in the recessed part of the bottom surface of the horizontal plate. A flange through hole 1701 is opened on the top surface of the horizontal plate. The flange through hole 1701 can connect the fan 19 and the exhaust cover 20. A pulley 21 is installed on the bottom surface of the vertical plate of the split-shell 17. The pulley 21 contacts the bottom surface. The size of the split-shell 17 matches the top of the vibration frame 4, which can close the opening of the pickling tank 1.

[0030] The working principle of this invention is as follows:

[0031] Pickling stage: Connect the two ends of the hydraulic pipe 3 to the telescopic chute 2 through the flexible adapter 23. Adjust the height of the frame rod 402 to support the hydraulic pipe 3. Seal the excess connection hole 102 with the hole cover 15. Seal the ventilation holes 103 on both sides with the sealing cover. Inject pickling solution into the pickling tank 1. The height of the pickling solution should be above the uppermost connection hole 102. Start the circulation pump 5 and the drain pump 22. The pickling solution is pumped from the pickling tank 1 into the left chamber 101 through the circulation pump 5 (refer to the direction in the figure), and then enters the right chamber 101 through the hydraulic pipe 3. Finally, it is discharged back into the pickling tank 1 through the drain pump 22 to complete the circulation. During the pickling process, the motor 11 drives the eccentric block of the vibrator 13 to rotate at high speed, thereby driving the hydraulic pipe 3, which is supported on the vibrating frame 4, to vibrate up and down in the pickling solution, so as to obtain a better rust removal effect. After the pickling solution cleaning is completed, turn off the motor 11 and the circulation pump 5, and transfer the outlet pipe of the circulation pump 5 to the wastewater tank for emptying. Then reconnect the outlet pipe and inject phosphating solution into the pickling tank 1 to repeat the above pickling process.

[0032] Drying Stage: After all working fluid has been used for cleaning, turn off motor 11 and circulation pump 5. Connect the outlet pipe of circulation pump 5 to the wastewater tank for drainage. After the working fluid is drained, turn off drain pump 22. Connect the flange of the exhaust pipe of blower 7 to one side vent 103. Replace the filter screen cover on the other side vent 103. Close the split-type sealing shell 17. Start blower 7 and fan 19. The airflow blown out by both blowers is heated by heating tube 9 and heating wire 18, and then dries the inside and outside of hydraulic pipe 3 respectively. After drying for a period of time, the position of the drying mechanism can be changed to make the drying effect of both ends of hydraulic pipe 3 more uniform. Figure 4 As shown, the operator can also connect the excess connection hole 102 to the flexible air duct 16 to dry the hydraulic pipe 3 locally. A heating pipe can be installed on the support rod 402 to further improve the drying effect.

[0033] This invention integrates pickling and drying functions, enabling batch pickling of hydraulic pipe assemblies. It is also equipped with a vibration mechanism to enhance rust removal. The device is suitable for various pipe types, eliminating the need for repeated handling, loading, and unloading of pipes, thus saving labor costs and operating time.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A pickling and drying device for a hydraulic steel pipe assembly pickling tank (1), characterized in that: The acid pickling tank (1) has chambers (101) in two opposite side walls, the two chambers (101) circulate the acid pickling solution in the acid pickling tank (1) through a circulating mechanism, the circulating mechanism includes a circulating pump (5), the outlet pipe of the circulating pump (5) is connected with one chamber (101), the inlet pipe of the circulating pump (5) is connected with a drain in the acid pickling tank (1), a filter (6) is arranged on the inlet pipe, the drain of the other chamber (101) is connected with the water inlet of a drainage pump (22), the water outlet of the drainage pump (22) is connected with the inside of the acid pickling tank (1), the outer wall of the chamber (101) is connected with a drying mechanism including a blower (7), the drying mechanism is placed on a movable carrier (10), the inner wall of the chamber (101) is provided with a plurality of connecting holes (102) connected with the acid pickling tank (1), the connecting holes (102) are threadedly connected with telescopic pipes (2), the connecting holes (102) can also be connected with hole covers (15) and flexible air pipes (16), the two ends of the telescopic pipes (2) are connected with hydraulic pipes (3) corresponding to the two sides, the hydraulic pipes (3) are placed on a vibration frame (4) of a vibration mechanism, the vibration mechanism includes a motor (11), the motor (11) is installed on a support (12) of the remaining two side walls of the acid pickling tank (1), the output end of the motor (11) is connected with a vibrator (13) through a universal joint, the vibrator (13) is installed on the top of the vibration frame (4), the two side plates (401) of the vibration frame (4) are slidingly connected with slide seats (104) on the two sides of the acid pickling tank (1), the slide seats (104) are in elastic contact with the bottom surfaces of the side plates (401), the bottom surfaces of the side plates (401) are provided with slot holes (403), the slot holes (403) are slidingly connected with insertion rods (105) on the bottom surfaces of the slide seats (104), the insertion rods (105) are sleeved with springs (14), the two ends of the springs (14) are respectively in contact with the bottom surfaces of the slide seats (104) and the side plates (401), a frame rod (402) is connected between the two side plates (401), vertical sliding grooves (404) are formed in the side plates (401), the sliding grooves (404) are slidingly connected with the ends of the frame rod (402) provided with positioning pins, the hydraulic pipes (3) are placed on the frame rod (402), the frame rod (402) can be used for erecting heating pipes; the two ends of the hydraulic pipes (3) are connected with the telescopic pipes (2) through elastic adapters (23), the height of the frame rod (402) is adjusted to support the hydraulic pipes (3), the excess connecting holes (102) are closed through the hole covers (15), the two side ventilation holes (103) are closed through sealing covers, acid pickling solution is injected into the acid pickling tank (1), the height of the acid pickling solution needs to cover the uppermost connecting hole (102), the circulating pump (5) and the drainage pump (22) are started, the acid pickling solution is pumped from the acid pickling tank (1) into the left chamber (101) through the circulating pump (5), then enters the right chamber (101) through the hydraulic pipes (3), and finally is discharged into the acid pickling tank (1) through the drainage pump (22) to complete the circulation, in the pickling process, the eccentric block of the vibrator (13) is rotated at high speed under the drive of the motor (11), so as to drive the hydraulic pipes (3) placed on the vibration frame (4) to vibrate up and down in the acid pickling solution.

2. The pickling and drying apparatus for a hydraulic steel pipe assembly according to claim 1, characterized by: The air blower (7) is connected with the air filter (8) through an air inlet pipe, the air outlet pipe of the air blower (7) is provided with a heating pipe (9), the air outlet pipe is flange-connected with the air vent (103) of the outer wall of the chamber (101), and the air vent (103) is provided with a filter cover and a sealing cover.

3. The apparatus according to claim 1, wherein: The telescopic pipe (2) is adapted to the pipe diameter of each type of hydraulic pipe (3) through the elastic adapter (23).

4. The apparatus according to claim 1, wherein: The acid pickling tank (1) is slidably connected with the bottom surface of the horizontal plate of the split shell (17) on the top surface of the remaining two side walls, the heating wire (18) is installed in the inner recess of the middle part of the bottom surface of the horizontal plate, the flange through hole (1701) is opened on the top surface of the horizontal plate, the flange through hole (1701) can be connected with the fan (19) and the air outlet cover (20), the vertical plate of the split shell (17) is provided with the pulley (21) installed on the bottom surface, and the pulley (21) is in contact with the bottom surface.

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