Drying device for welded pipe

Abstract

The utility model discloses a drying device for a welded pipe, and relates to the technical field of welded pipe machining. The welding pipe comprises a welding pipe body, a pre-drying assembly is arranged outside the welding pipe body and comprises a mounting box, the welding pipe body penetrates through the interior of the mounting box, a side plate is fixed to the upper side of the left wall of the mounting box, motors are fixed to the front side and the rear side of the upper wall of the side plate, and mounting cylinders are fixed to power output shafts of the motors; water absorption cotton is arranged outside the mounting cylinder, a plurality of conveying rollers are arranged on the portion, corresponding to the interior of the mounting box, of the right side of the mounting cylinder, and the peripheral walls of the conveying rollers and the water absorption cotton are matched with the welded pipe body. The water absorption cotton is made to rotate through the motor, the welded pipe body can be driven to move, water on the outer surface of the welded pipe body is pre-dried through the water absorption cotton, dried hot moisture is dehumidified through the draught fan and then conveyed into the installation box to be dried, and part of heat is recycled.

Description

Technical Field

[0001] The utility model belongs to the technical field of welded pipe processing, in particular to a drying device for welded pipes. Background Art

[0002] Welded pipes are tubular objects made by welding steel plates or strips. According to the different welding methods, they are divided into straight seam welded pipes and spiral welded pipes. Usually, smaller diameter welded pipes are welded by straight seam welding, while large diameter welded pipes are mostly welded by spiral welding. After welding, welded pipes need to be tested for leaks and pressure resistance. After testing the welded pipes with water, they need to be dried.

[0003] After searching, the authorization announcement number CN205279685U and the authorization announcement date 2016.06.01 disclose a welding pipe drying device, which relates to the field of welding pipe drying technology; it comprises an annular air cavity, a left support joint, a right support joint, a blower, an air heater, an induced draft fan, a rubber ring, and a through hole; one end of the annular air cavity is fixedly connected to the left support joint, and the other end of the annular air cavity is fixedly connected to the right support joint; the blower is connected to the air heater, and the air heater is connected to one end of the annular air cavity; the other end of the annular air cavity is connected to the induced draft fan; the inner wall of the left support joint is provided with a rubber ring, and the annular air cavity is provided with a through hole that connects the inner cavity with the outside. The welding pipe drying device described in the utility model has high drying efficiency and can purify the air after the welding pipe is dried. The utility model has the advantages of simple structure, reasonable arrangement, and low production cost.

[0004] The prior art pre-dries the moisture on the surface of the welded pipe by passing the welded pipe through a rubber ring first. However, in actual operation, the friction force when the welded pipe passes through the rubber ring is relatively large, which not only easily causes the rubber ring to fall off, but also makes it more laborious to move the welded pipe. In addition, the prior art purifies the hot air after drying the welded pipe and discharges it, resulting in heat waste. Therefore, we provide a drying device for welded pipes to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a drying device for welding pipes, which can drive the welding pipe body to move by rotating the absorbent cotton through a motor, and pre-dry the moisture on the outer surface of the welding pipe body by using the absorbent cotton, and then transport the dried hot and humid air to an installation box for drying after dehumidification by a fan, so as to recycle part of the heat, thereby solving the problem that the friction force of the welding pipe passing through the rubber ring in the prior art is large, which not only easily causes the rubber ring to fall off, but also makes it more laborious to move the welding pipe, and the hot air after drying the welding pipe in the prior art is discharged after purification, resulting in heat waste.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a drying device for welded pipes, comprising a welded pipe body, a pre-drying assembly is arranged outside the welded pipe body, the pre-drying assembly comprises an installation box, the welded pipe body passes through the interior of the installation box, a side plate is fixed on the upper side of the left wall of the installation box, motors are fixed on both the front and rear sides of the upper wall of the side plate, a mounting cylinder is fixed on the power output shaft of the motor, water-absorbing cotton is arranged outside the mounting cylinder, a plurality of conveying rollers are arranged on the right side of the mounting cylinder corresponding to the interior of the installation box, and the outer peripheral walls of the conveying rollers and the water-absorbing cotton are adapted to the welded pipe body;

[0008] A drying component is arranged on the front side of the pre-drying component, and the drying component includes a dehumidification box, a drying plate is arranged on the upper side of the interior of the dehumidification box, a heating wire is fixed below the drying plate corresponding to the front wall of the dehumidification box, a fan is arranged in front of the heating wire, and a Y-shaped pipe and a three-way pipe are fixed to the upper wall of the dehumidification box and the air outlet end of the fan respectively.

[0009] The utility model is further configured that an insert is axially fixed on the outer peripheral wall of the installation tube, a slot is axially opened on the inner peripheral wall of the absorbent cotton, and the insert is located inside the slot.

[0010] The utility model is further configured such that a circular plate is fixed above the absorbent cotton corresponding to the outside of the mounting tube, a mounting plate is provided on the lower wall of the mounting tube, and the mounting plate is fixedly connected to the mounting tube by bolts.

[0011] The utility model is further configured that connecting rods are fixed at middle positions of upper and lower ends of the conveying roller, and the connecting rods are rotatably connected to the installation box through bearings.

[0012] The utility model is further configured such that the dehumidification box is fixedly connected to the installation box, limit frames are provided along the edges of the upper and lower side walls of the drying plate, and the limit frames are fixedly connected to the dehumidification box, and a sealing plate is detachably fixed to the right wall of the dehumidification box corresponding to the right side of the drying plate.

[0013] The utility model is further configured such that a mounting box is fixed to the outside of the heating wire corresponding to the air inlet end of the fan, and the rear wall of the mounting box is fixed to the front wall of the dehumidification box.

[0014] The utility model is further configured such that the two ends of the Y-shaped tube away from the dehumidification box are fixed on the left and right sides of the upper wall of the installation box, and the two ends of the three-way tube away from the fan are fixed on the left and right sides of the lower wall of the installation box.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model sets a motor and absorbent cotton, and utilizes the motor to drive the rotating drum to rotate. The absorbent cotton rotates with the cooperation of the slot and the insert. Under the condition of friction between the absorbent cotton and the weld pipe body, the weld pipe body moves into the installation box. Since the absorbent cotton has the characteristic of absorbing water, it absorbs the moisture on the outer surface of the weld pipe body when the weld pipe body moves to achieve the purpose of pre-drying. Compared with the prior art, there is no need to use rubber rings. The rotation of the absorbent cotton can not only achieve the effect of pre-drying the weld pipe body, but also move the weld pipe body into the installation box for transmission of the weld pipe body. The movement of the weld pipe body is more convenient, which solves the problem that the friction of the prior art weld pipe is large when passing through the rubber ring, which not only easily causes the rubber ring to fall off, but also makes it more laborious to move the weld pipe.

[0017] 2. The utility model sets a Y-shaped tube, a three-way tube and a fan. When the fan is working, the inside of the Y-shaped tube is in a negative pressure state, and the hot air flow after drying is sucked into the Y-shaped tube. The hot air flow carries the heat generated by the heating wire through the three-way tube and then enters the installation box to dry the welded pipe body. The above-mentioned setting can realize the recycling of part of the hot air flow. The heating wire provides a part of the heat provided by the small power and the recovered heat can be used to dry the welded pipe body, which reduces the waste of heat and makes the drying process of the welded pipe body more energy-saving. It solves the problem of heat waste in the prior art that the hot air after drying the welded pipe is discharged after purification.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The figure is an overall structural diagram of a drying device for welded pipes.

[0021] Figure 2 This is a left-side structural diagram of a drying device for welded pipes.

[0022] Figure 3 for Figure 2 Partial structure diagram of .

[0023] Figure 4 This is a right side structural diagram of a drying device for welded pipes.

[0024] Figure 5 This is the exploded structure diagram of the drying component.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-welding pipe body, 2-pre-drying assembly, 201-motor, 202-absorbent cotton, 2021-slot, 203-installation box, 2031-side panel, 204-installation plate, 2041-bolt, 205-installation cylinder, 2051-insertion strip, 2052-round plate, 206-transmission roller, 2061-connecting rod, 3-drying assembly, 301-Y-shaped tube, 302-drying plate, 303-dehumidification box, 3031-limiting frame, 304-sealing plate, 305-fan, 306-installation box, 307-heating wire, 308-tee pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0029] See also Figure 1-4 The utility model is a drying device for welding pipes, comprising a welding pipe body 1, a pre-drying assembly 2 is arranged outside the welding pipe body 1, the pre-drying assembly 2 comprises an installation box 203, the welding pipe body 1 passes through the interior of the installation box 203, a side plate 2031 is fixed on the upper side of the left wall of the installation box 203, and a mounting platform is provided for the installation of a motor 201, and motors 201 are fixed on both the front and rear sides of the upper wall of the side plate 2031, which are used to drive the installation cylinder 205 to rotate, the motor 201 located on the front side rotates clockwise, and the motor 201 located on the rear side rotates counterclockwise, so that the two absorbent cottons 202 drive the welding pipe body 1 to move to the right, and the installation cylinder 205 is fixed on the power output shaft of the motor 201, An installation platform is provided for the absorbent cotton 202. The absorbent cotton 202 is arranged on the outside of the installation cylinder 205 to achieve the effect of absorbing water from the outer surface of the welding pipe body 1 to achieve pre-drying, and to realize the movement of the welding pipe body 1. A plurality of conveying rollers 206 are arranged inside the corresponding installation box 203 on the right side of the installation cylinder 205. The welding pipe body 1 moves along the conveying rollers 206, and the outer peripheral walls of the conveying rollers 206 and the absorbent cotton 202 are adapted to the welding pipe body 1. The outer peripheral wall of the welding pipe body 1 is in contact with the outer peripheral wall of the conveying rollers 206 and the absorbent cotton 202. By using the motor 201 to drive the absorbent cotton 202 to rotate, the welding pipe body 1 is conveyed and the purpose of pre-drying is achieved.

[0030] Specifically, an insert 2051 is axially fixed on the outer wall of the installation tube 205, and a slot 2021 is axially opened on the inner wall of the absorbent cotton 202, and the insert 2051 is located inside the slot 2021. The cooperation between the insert 2051 and the slot 2021 can drive the absorbent cotton 202 to rotate when the installation tube 205 rotates, thereby avoiding relative rotation between the absorbent cotton 202 and the installation tube 205.

[0031] A circular plate 2052 is fixed to the outside of the mounting tube 205 corresponding to the top of the absorbent cotton 202, and a mounting plate 204 is provided on the lower wall of the mounting tube 205, and the mounting plate 204 is fixedly connected to the mounting tube 205 by bolts 2041. With the above arrangement, the cooperation between the circular plate 2052 and the mounting plate 204 can limit the position of the absorbent cotton 202, and the absorbent cotton 202 can be removed for replacement by removing the bolts 2041 and removing the mounting plate 204.

[0032] Connecting rods 2061 are fixed at the middle positions of the upper and lower ends of the conveying roller 206, and the connecting rods 2061 are rotatably connected to the installation box 203 through bearings.

[0033] The operation process of this embodiment is as follows: when in use, the power of the two motors 201 is turned on. At this time, the motor 201 works to drive the installation cylinder 205 to rotate. With the cooperation of the slot 2021 and the insert 2051, the absorbent cotton 202 rotates, and the welding pipe body 1 can be transported to the right. During the transportation process, since the welding pipe body 1 is in contact with the absorbent cotton 202, the absorbent cotton 202 absorbs the moisture on the outer surface of the welding pipe body 1 to achieve a pre-drying effect. Specific embodiment 2

[0035] See also Figure 1 and 5 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment, but is different from the first embodiment in that: a drying component 3 is arranged on the front side of the pre-drying component 2, and the drying component 3 includes a dehumidification box 303, and a drying plate 302 is arranged on the upper side of the dehumidification box 303. The drying plate 302 can be made of a high-temperature resistant hygroscopic material, and a heating wire 307 is fixed to the front wall of the dehumidification box 303 below the drying plate 302, which is used to generate heat to accelerate the evaporation of water when it acts on the welding pipe body 1. A fan 305 is arranged in front of the heating wire 307 to generate airflow, and a Y-shaped tube 301 and a three-way tube 308 are fixed to the upper wall of the dehumidification box 303 and the air outlet end of the fan 305, respectively. The cooperation of the Y-shaped tube 301, the three-way tube 308 and the fan 305 realizes the recovery and utilization of heat after acting on the welding pipe body 1, reduces the waste of heat, and makes drying more energy-efficient.

[0036] Specifically, the dehumidification box 303 is fixedly connected to the installation box 203, and limit frames 3031 are provided along the edges of the upper and lower side walls of the drying plate 302, and the limit frames 3031 are fixedly connected to the dehumidification box 303, and the limit frames 3031 are U-shaped, and the front side of the limit frames 3031 is open to facilitate the disassembly and assembly of the drying plate 302. The right side of the drying plate 302 corresponds to the right wall of the dehumidification box 303, and a sealing plate 304 is detachably fixed thereto, and the drying plate 302 can be disassembled and assembled by removing the sealing plate 304.

[0037] An installation box 306 is fixed to the outside of the heating wire 307 corresponding to the air inlet end of the fan 305, and the rear wall of the installation box 306 is fixed to the front wall of the dehumidification box 303, and the rear side of the installation box 306 is open. At the same time, the interior of the installation box 306 is communicated with the interior of the dehumidification box 303, and the interior of the Y-shaped tube 301 is communicated with the interior of the installation box 203, and the interior of the Y-shaped tube 301 is also communicated with the interior of the dehumidification box 303, so that air can pass through.

[0038] The two ends of the Y-shaped tube 301 away from the dehumidification box 303 are fixed on the left and right sides of the upper wall of the installation box 203, and the two ends of the three-way tube 308 away from the fan 305 are fixed on the left and right sides of the lower wall of the installation box 203. The interior of the three-way tube 308 is connected to the interior of the installation box 203.

[0039] The rest of the structure is the same as that of the first embodiment.

[0040] The operation process of this embodiment is as follows: when drying, the welding pipe body 1 moves to the right, and the airflow generated by the fan 305 carries the heat generated by the heating wire 307 through the three-way pipe 308 into the installation box 203 and acts on the outer surface of the welding pipe body 1 for drying. When the fan 305 is working, a negative pressure is generated in the Y-shaped tube 301, and part of the hot and humid air acting on the welding pipe body 1 is transported to the dehumidification box 303. Under the drying of the hot and humid air by the drying plate 302, the recovered hot air flow carries a small amount of heat generated by the heating wire 307 and then passes through the three-way pipe 308 to act on the welding pipe body 1 to dry the welding pipe body 1.

[0041] In addition, the electrical appliances in the drying device for welded pipes are all electrically connected to an external power source via conductive wires. Meanwhile, the electrical appliances in the drying device for welded pipes are all prior art, and their models are not limited here.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drying device for a welded pipe, comprising a welded pipe body (1), characterized in that: A pre-drying component (2) is arranged outside the welding pipe body (1), and the pre-drying component (2) includes an installation box (203). The welding pipe body (1) passes through the interior of the installation box (203). A side plate (2031) is fixed on the upper side of the left wall of the installation box (203). Motors (201) are fixed on both the front and rear sides of the upper wall of the side plate (2031). A mounting cylinder (205) is fixed on the power output shaft of the motor (201). Water-absorbing cotton (202) is arranged outside the mounting cylinder (205). A plurality of conveying rollers (206) are arranged on the right side of the mounting cylinder (205) corresponding to the interior of the installation box (203), and the outer peripheral walls of the conveying rollers (206) and the water-absorbing cotton (202) are both compatible with the welding pipe body (1). A drying component (3) is arranged on the front side of the pre-drying component (2), and the drying component (3) includes a dehumidification box (303). A drying plate (302) is arranged on the upper side of the interior of the dehumidification box (303). A heating wire (307) is fixed below the drying plate (302) corresponding to the front wall of the dehumidification box (303). A fan (305) is arranged in front of the heating wire (307). A Y-shaped tube (301) and a three-way tube (308) are fixed to the upper wall of the dehumidification box (303) and the air outlet end of the fan (305), respectively.

2. A drying device for welded pipe according to claim 1, characterized in that: An insert strip (2051) is axially fixed on the outer peripheral wall of the installation tube (205), a slot (2021) is axially opened on the inner peripheral wall of the absorbent cotton (202), and the insert strip (2051) is located inside the slot (2021).

3. A drying device for welded pipe according to claim 2, characterized in that: A circular plate (2052) is fixed above the absorbent cotton (202) corresponding to the outside of the mounting tube (205), a mounting plate (204) is provided on the lower wall of the mounting tube (205), and the mounting plate (204) is fixedly connected to the mounting tube (205) via bolts (2041).

4. A drying device for welded pipe according to claim 1, characterized in that: Connecting rods (2061) are fixed at the middle positions of the upper and lower ends of the conveying roller (206), and the connecting rods (2061) are rotatably connected to the installation box (203) via bearings.

5. A drying device for welded pipe according to claim 1, characterized in that: The dehumidification box (303) is fixedly connected to the installation box (203), and limit frames (3031) are provided along the edges of the upper and lower side walls of the drying plate (302), and the limit frames (3031) are fixedly connected to the dehumidification box (303), and a sealing plate (304) is detachably fixed to the right wall of the dehumidification box (303) corresponding to the right side of the drying plate (302).

6. A drying device for welded pipe according to claim 1, characterized in that: An installation box (306) is fixed to the outside of the heating wire (307) corresponding to the air inlet end of the fan (305), and the rear wall of the installation box (306) is fixed to the front wall of the dehumidification box (303).

7. A drying device for welded pipe according to claim 1, characterized in that: The two ends of the Y-shaped tube (301) away from the dehumidification box (303) are fixed to the left and right sides of the upper wall of the installation box (203), and the two ends of the three-way tube (308) away from the fan (305) are fixed to the left and right sides of the lower wall of the installation box (203).

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