CN111482779A - Header gas collecting pipe component of heat exchanger and manufacturing method thereof - Google Patents
Header gas collecting pipe component of heat exchanger and manufacturing method thereof Download PDFInfo
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- CN111482779A CN111482779A CN202010464843.2A CN202010464843A CN111482779A CN 111482779 A CN111482779 A CN 111482779A CN 202010464843 A CN202010464843 A CN 202010464843A CN 111482779 A CN111482779 A CN 111482779A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
- B23K11/318—Supporting devices for electrode holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
- B23K2103/05—Stainless steel
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- Arc Welding In General (AREA)
Abstract
The invention discloses a header gas collecting pipe assembly of a heat exchanger, which comprises a stainless steel connecting pipe and a stabilizing frame, wherein the stainless steel connecting pipe comprises a first stainless steel connecting pipe and a second stainless steel connecting pipe, the first stainless steel connecting pipe and the second stainless steel connecting pipe are respectively provided with at least two steel branch pipes, and the first stainless steel connecting pipe and the second stainless steel connecting pipe are respectively provided with the stabilizing frame. The manufacturing method of the invention comprises the following steps: 1) preparing stainless steel connecting pipes and steel branch pipes; 2) welding the stainless steel connecting pipe and the steel branch pipe; 3) and assembling the gas collecting pipe assembly. According to the invention, the stainless steel connecting pipe is divided into two connecting pipes, when one connecting pipe has a problem, only the connecting pipe with the problem needs to be replaced, and the gas collecting pipe assembly can be conveniently and practically installed by adopting the design of the stabilizing frame; adopt welding set to realize dividing the resistance welding operation between the pipe to stainless steel takeover and steel in this application to adopt welding operation simultaneously between the pipe and the stainless steel takeover to many with steel simultaneously, effectively improve resistance welding speed and quality.
Description
Technical Field
The invention belongs to the technical field of gas collecting pipes, and particularly relates to a gas collecting pipe component of a heat exchanger header and a manufacturing method thereof.
Background
A heat exchanger (also called heat exchanger) is a device that transfers part of the heat of a hot fluid to a cold fluid. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied. The gas collecting pipe assembly is a component part in the heat exchanger, the existing gas collecting pipe assembly is general in installation stability, once a gas collecting pipe pipeline has a problem, the whole pipeline needs to be replaced, and the maintenance cost is high. Moreover, flame welding is generally adopted between the main pipe and the branch pipe in the existing gas collecting pipe, so that the technical level of operators is higher, and the potential safety hazard of operation is greater.
Disclosure of Invention
The invention aims to provide the technical scheme of the heat exchanger header gas collecting pipe assembly and the manufacturing method thereof aiming at the defects in the prior art, the integral structure is ingenious and reasonable in design, the stainless steel connecting pipe is divided into two connecting pipes, when one of the connecting pipes is in a problem, only the connecting pipe with the problem needs to be replaced, the subsequent maintenance cost is reduced, and the design of the stabilizing frame is adopted, so that the actual installation of the gas collecting pipe assembly can be facilitated, the difficulty in installation and disassembly is reduced, and the installation firmness of the gas collecting pipe assembly is ensured; adopt welding set to realize dividing the resistance welding operation between the pipe to stainless steel takeover and steel in this application to adopt welding operation simultaneously between the pipe and the stainless steel takeover to many with steel simultaneously, effectively improve resistance welding speed and quality.
In order to solve the technical problems, the invention adopts the following technical scheme:
the heat exchanger header discharge subassembly, its characterized in that: the stainless steel connecting pipe comprises a stainless steel connecting pipe body and a stabilizing frame, wherein the stainless steel connecting pipe body comprises a first stainless steel connecting pipe body and a second stainless steel connecting pipe body, one end of the first stainless steel connecting pipe body is connected with one end of the second stainless steel connecting pipe body through a three-way joint, at least two steel branch pipes are arranged on the first stainless steel connecting pipe body and the second stainless steel connecting pipe body, and the stabilizing frame is arranged on each of the first stainless steel connecting pipe body and the second stainless steel connecting pipe body.
Furthermore, the other end of the first stainless steel connecting pipe is in threaded connection with the steel bent pipe, the steel bent pipe and the first stainless steel connecting pipe are connected in a threaded connection detachable mode, actual detachment can be facilitated, connection is flexible and reliable, the steel bent pipe and the first stainless steel connecting pipe are connected in a detachable connection mode, maintenance cost expense can be reduced, when one of the steel bent pipe and the first stainless steel connecting pipe goes wrong, integral replacement is not needed, and only the part with the problem needs to be replaced.
Furthermore, the other end of the second stainless steel connecting pipe is in threaded connection with a sealing cap, the design is reasonable, the other end of the second stainless steel connecting pipe is shielded and sealed through the sealing cap, the normal use of the gas collecting pipe assembly is guaranteed, the sealing cap can be conveniently disassembled and assembled by adopting threaded connection, and the connection tightness of the sealing cap and the second stainless steel connecting pipe can be guaranteed.
Further, the stabilizing frame comprises a supporting plate and a pressing frame, the pressing frame is adjustably connected with the supporting plate, the stainless steel connecting pipe is clamped and limited between the supporting plate and the pressing frame, the stainless steel connecting pipe is clamped and limited through the pressing frame and the supporting plate, connection between the stabilizing frame and the stainless steel connecting pipe is achieved, connection firmness between the stabilizing frame and the stainless steel connecting pipe is guaranteed, the supporting plate and the surface of the pressing frame, which is in direct contact with the stainless steel connecting pipe, are of an arc-shaped structure, the supporting plate can be guaranteed, the contact area between the pressing frame and the stainless steel connecting pipe is increased, the clamping effect of the stainless steel connecting pipe is improved, an adjustable connection mode is adopted between the pressing frame and the supporting plate, the stabilizing frame can be adjusted according to the actual pipe diameter of the stainless steel connecting pipe, and clamping and fixing of the stainless steel connecting pipes with different pipe.
Further, the mounting plate is arranged on the supporting flat plate, the mounting holes are formed in the mounting plate, the design is reasonable, the mounting holes are reserved in the mounting plate, the fixing and installation between the fixing frame and the equipment can be achieved, the fixing frame is fixed with the stainless steel pipe connecting clamp, the indirect installation and fixing between the pipeline and the equipment are achieved, the mounting mode is simple and convenient, and the mounting and dismounting are convenient.
Furthermore, the pressing frame comprises a positioning plate and two pressing plates, the two pressing plates are symmetrically arranged at two ends of one side of the positioning plate, the two pressing plates are symmetrically provided with two adjusting screws, the four corners of the supporting flat plate are provided with through holes, the adjusting screws are matched with the through holes, the end parts of the adjusting screws penetrate through the through holes, and the end parts of the adjusting screws are provided with fastening nuts, the whole structure design is compact and reasonable, the contact area between the pressing frame and the stainless steel connecting pipe can be ensured through the design of the two pressing plates, the pressing effect is ensured, each pressing plate corresponds to the two adjusting screws, the pressing plates are clamped in the two corresponding through holes up and down through the adjusting screws, the movable insertion of the pressing frame and the supporting flat plate is realized, the length of the through holes of the adjusting screws is adjusted, the distance between the pressing plates and the supporting flat plate is adjusted, thereby realizing the clamping and fixing of the stainless, after the pressure strip is adjusted in place, the fastening nut is screwed down, so that the connection stability between the pressure frame and the support flat plate is ensured, and the installation firmness between the stability frame and the stainless steel connecting pipe is ensured.
Furthermore, the positioning rings are arranged at the two ends of the positioning plate, the positioning rings are matched with the steel branch pipes, the positioning rings are sleeved on the steel branch pipes, the inserting rods are arranged on the positioning rings, the slots are arranged at the two ends of the positioning plate, the inserting rods are matched with the slots, the inserting rods are inserted in the slots, and the inserting rods are limited and fixed with the positioning plates through the set screws, through the ingenious design of the positioning rings, the accurate installation and positioning of the stabilizing frame on the first stainless steel connecting pipe and the second stainless steel connecting pipe can be ensured, because the steel branch pipes of the first stainless steel connecting pipe and the second stainless steel connecting pipe are positioned at the same side after being assembled, the end surfaces of the steel branch pipes are also mutually flush, the pressing frame realizes the accurate sleeve joint with the steel branch pipes on the stainless steel connecting pipe through the positioning rings at the two sides, the consistent installation angles of the stabilizing frames on the first stainless steel connecting pipe and the second stainless steel connecting pipe are ensured, thereby being convenient for further, reduce the dismouting degree of difficulty of reality, and ingenious design through inserted bar and slot, can change the interval between holding ring and the locating plate, make the holding ring can cup joint on the steel branch pipe that corresponds, press the frame to adjust according to the interval between two adjacent steel branch pipes, guarantee on the pipeline section that two steel branch pipes can be installed to the steady frame, adjust the installation fastness that the back was screwed up the holding screw and just can guarantee holding ring and locating plate, ensure the structure steadiness of pressing the frame, structural design is ingenious reasonable, high durability and convenient installation.
The manufacturing method of the heat exchanger header gas collecting pipe assembly is characterized by comprising the following steps: the method comprises the following steps:
1) preparing stainless steel connecting pipes and steel branch pipes: preparing a first stainless steel connecting pipe, a second stainless steel connecting pipe and a steel branch pipe with corresponding pipe diameters according to design requirements, then punching the surfaces of the first stainless steel connecting pipe and the second stainless steel connecting pipe to form inserting holes, and then processing external threads at one end of the first stainless steel connecting pipe and one end of the second stainless steel connecting pipe;
2) welding the stainless steel connecting pipe and the steel branch pipe:
(1) firstly, welding a first stainless steel connecting pipe and a steel branch pipe, sleeving the first stainless steel connecting pipe from the unfixed end of a connecting rod, properly adjusting the position of the first stainless steel connecting pipe to enable an electrode block on the connecting rod to be just clamped in the first stainless steel connecting pipe, and continuously pushing the first stainless steel connecting pipe until the end part of the first stainless steel connecting pipe is abutted to a limiting plate at the other end of the connecting rod; the connecting rod and the electrode block are used for realizing accurate clamping and limiting of the stainless steel connecting pipe, and the design of the limiting plate at the other end of the connecting rod is used for ensuring that the stainless steel connecting pipe is further clamped in place, so that the jacks on the stainless steel connecting pipe are in one-to-one correspondence with the electrode blocks on the connecting rod, the installation is convenient and simple, and the subsequent adjustment of the stainless steel connecting pipe is facilitated;
(2) loosening the first limiting screw, moving the clamping frame along the horizontal support plate, adjusting the position of the clamping frame to enable the clamping frame to avoid the jack on the surface of the first stainless steel connecting pipe, then tightening the first limiting screw, then loosening the second limiting screw, moving the supporting seat along the limiting rod on the fixing frame through the limiting frame at the bottom of the supporting seat, and tightening the second limiting screw until the supporting seat abuts against the first stainless steel connecting pipe; the position of a clamping frame on a horizontal support plate is adjusted, a fixing frame on the clamping frame is movably clamped on the horizontal support plate through a perforation groove, the moving horizontality of the clamping frame is ensured, the clamping frame is moved to be positioned between pipe sections between jacks, so that the clamping frame cannot influence the welding operation between a steel branch pipe and a stainless steel connecting pipe, the supporting seat is supported and abutted on the bottom surface of the stainless steel connecting pipe by adjusting the height of the supporting seat, the limiting frame moves along a limiting rod to ensure the verticality of the supporting seat, the bottom of the stainless steel connecting pipe is supported and lifted through the supporting seat, the supporting pressure of a connecting rod is reduced, the stainless steel connecting pipe is placed more stably and reliably, the integral adjustment is simple and convenient, and the operation is convenient;
(3) moving the steel branch pipe from the electrode ring to the first stainless steel connecting pipe in a penetrating way, and simultaneously rotating the first stainless steel connecting pipe properly to ensure that the welding head part of the steel branch pipe is just inserted into the jack on the surface of the first stainless steel connecting pipe and abuts against the electrode block in the corresponding jack; the electrode rings correspond to the electrode blocks one to one, primary positioning of the steel branch pipes is achieved through the electrode rings, the mounting horizontality of the steel branch pipes is guaranteed, the steel branch pipes correspond to the jacks one to one, and further accurate positioning is conducted on the axial angles of the stainless steel connecting pipes through the steel branch pipes and the jacks, so that the electrode blocks are also located at the corresponding jacks, the whole mounting operation is convenient, and any size measurement is not needed;
(4) loosening the clamping nut, rotating the top plate along the connecting shaft, rotating the top plate to the position above the top surface of the first stainless steel connecting pipe, then tightening the clamping nut, then loosening the third limiting screw, then loosening the limiting ring, and moving the connecting screw on the top plate downwards, so that the top plate is moved out of the placing groove in the bottom surface of the top plate and continuously moves downwards until the top plate abuts against the top surface of the first stainless steel connecting pipe, tightening the limiting ring, and then tightening the third limiting screw; the final position of the stainless steel connecting pipe is adjusted in place, so that the stainless steel connecting pipe is clamped and limited by the jacking plate matched with the corresponding supporting seat, the stability of the stainless steel connecting pipe is ensured, the phenomenon that the actual welding operation is influenced by the movement of the stainless steel connecting pipe in the subsequent welding process is effectively prevented, the integral operation is convenient, the downward movement of the connecting screw rod is limited by the limiting ring, the extending plate is arranged on the limiting ring, and the upward movement of the connecting screw rod can be limited by the extending plate through the third limiting screw, so that the top surface of the stainless steel connecting pipe is compressed and limited by the jacking plate, the design is ingenious, and the adjustment and installation are convenient and simple;
(5) the first jacking cylinder and the second jacking cylinder are started simultaneously, the telescopic rod of the first jacking cylinder extends to push the push plate to move until the limiting cover on the push plate is clamped into the end part of the corresponding steel branch pipe and is abutted against and pressed against the end part of the steel branch pipe, the second jacking cylinder applies horizontal thrust moving towards the direction of the steel branch pipe to the horizontal support plate through the telescopic rod, and the first stainless steel connecting pipe is fixed on the horizontal support plate, so that the thrust is indirectly applied to the first stainless steel connecting pipe; the first jacking cylinder and the second jacking cylinder are started simultaneously, and the steel branch pipe and the stainless steel connecting pipe are pressurized simultaneously, so that the normal operation of subsequent resistance welding is ensured;
(6) starting an adjusting cylinder, retracting a telescopic rod, driving an electrode ring to move by the telescopic rod through an installation rod until the electrode ring abuts against the splicing part of the steel branch pipe and the first stainless steel connecting pipe; the electrode ring is moved to the outer side of the splicing part of the steel branch pipe and the stainless steel connecting pipe, and the electrode blocks are arranged on the inner sides of the corresponding jacks, so that the electrode blocks and the electrode ring at the corresponding positions inside and outside the same jack form a group, and the quality of subsequent resistance welding can be effectively improved by moving the electrode ring to the splicing part;
(7) respectively connecting the electrode block and the electrode ring with the anode and the cathode of a welding power supply, and switching on the welding power supply to perform welding operation until the welding is finished; a group of electrode blocks and electrode rings are arranged on the inner side and the outer side of the splicing part of each steel branch pipe and the stainless steel connecting pipe, and each electrode block and each electrode ring are connected with a power supply through an independent wire, so that simultaneous resistance welding operation can be carried out on a plurality of steel branch pipes and the stainless steel connecting pipes simultaneously, the welding speed is effectively improved, and the processing speed is accelerated;
(8) welding a second stainless steel connecting pipe and a steel branch pipe according to the welding procedure of the first stainless steel connecting pipe and the steel branch pipe; after a finished product obtained by welding the first stainless steel connecting pipe and the steel branch pipe is taken down from the welding device, all parts are reset, and then welding operation of the second stainless steel connecting pipe and the steel branch pipe is carried out according to the welding operation steps of the first stainless steel connecting pipe and the steel branch pipe, so that the welding device is reasonable in design and convenient to use;
3) assembling the gas collecting pipe assembly:
(1) selecting a steel bent pipe and a sealing cap with proper sizes, connecting the steel bent pipe to the external thread end part of the first stainless steel connecting pipe in a threaded manner, and screwing the sealing cap to the external thread end part of the second stainless steel connecting pipe in a threaded manner; the screw connection is adopted, so that the installation is simple and convenient;
(2) selecting a three-way joint with a proper size, connecting the first stainless steel connecting pipe and the second stainless steel connecting pipe in a combined manner through the three-way joint, and ensuring that the end surfaces of the steel branch pipes on the first stainless steel connecting pipe and the second stainless steel connecting pipe are flush; connecting and conducting the first stainless steel connecting pipe and the second stainless steel connecting pipe through the three-way joint, adjusting the axial angle of the first stainless steel connecting pipe and the second stainless steel connecting pipe, and winding, sealing and reinforcing a sealing adhesive tape at the connecting end part of the three-way joint and the stainless steel connecting pipe after the adjustment is in place;
(3) selecting a stabilizing frame with a proper size, selecting the mounting positions of the stabilizing frame on a first stainless steel connecting pipe and a second stainless steel connecting pipe according to the mounting requirements of a gas collecting pipe assembly, arranging the stabilizing frame on the pipeline section between two adjacent steel branch pipes, loosening a set screw, adjusting the length of an inserted rod inserted into a slot, enabling positioning rings on two sides of a positioning plate to be just sleeved on the two corresponding steel branch pipes, tightening the set screw, moving the positioning plate towards the direction of the stainless steel connecting pipe until a compression plate is abutted against the side surface of the stainless steel connecting pipe, mounting a support flat plate, penetrating an adjusting screw through a through hole in the support flat plate, continuously moving the support flat plate along the adjusting screw until the support flat plate is abutted against the stainless steel connecting pipe, screwing a fastening nut from the end part of the adjusting screw, and tightening the fastening nut; the installation and positioning of the pressing frame and the stainless steel connecting pipe are realized through the positioning ring, the installation and positioning of the positioned pressing frame auxiliary supporting flat plate are carried out, the distance between the pressing frame and the supporting flat plate is adjusted, the stainless steel connecting pipe is clamped and limited, the overall design is ingenious and reasonable, the installation and the disassembly are convenient and simple, the operation is convenient, the size measurement is not needed in the whole installation process, and the auxiliary guiding is carried out on the subsequently installed parts through the parts which are installed firstly;
(4) the assembled gas collecting pipe assembly is installed in the heat exchanger, and the gas collecting pipe assembly is installed and fixed in the heat exchanger through the installation holes matched with screws with corresponding sizes; the assembled gas collecting pipe assembly is installed and fixed at the formulated position of the heat exchanger through the installation hole, the installation and the disassembly are convenient, any punching and welding operation on the surface of the pipeline is not needed, the installation firmness of the gas collecting pipe assembly can be ensured, and the normal use of the gas collecting pipe assembly is facilitated.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention designs the stainless steel connecting pipe into the first stainless steel connecting pipe and the second stainless steel connecting pipe which can be disassembled, when one of the connecting pipes has a problem, only the connecting pipe with the problem needs to be replaced without replacing the whole pipeline, thereby effectively reducing the subsequent maintenance cost, limiting and clamping the stainless steel connecting pipe through the design of the stabilizing frame, and then installing and fixing the stainless steel connecting pipe and the heat exchanger through the stabilizing frame, thereby realizing the installation and the fixation between the gas collecting pipe assembly and the heat exchanger, avoiding the operations of drilling, welding and the like on the surface of the connecting pipe, being more convenient for actual installation and disassembly, reducing the difficulty of installation and disassembly, ensuring the consistency of the installation angles of the stabilizing frame on the first stainless steel connecting pipe and the second stainless steel connecting pipe through the ingenious design of the structure of the stabilizing frame, thereby being more convenient for actual disassembly and assembly, and the stabilizing frame can be adjusted according to the actual pipe diameter of the stainless steel connecting pipe, thereby guaranteeing the clamping and fixing function for different pipe diameters.
The welding operation between the steel branch pipes and the stainless steel connecting pipes is realized by adopting resistance welding, the operation is safe and convenient, the welding speed is high, the cost is low, the welding operation between the stainless steel connecting pipes and the stainless steel branch pipes is realized by a specific welding device, the first stainless steel connecting pipe and the second stainless steel connecting pipe are respectively provided with a plurality of steel branch pipes, and the welding device is provided with the electrode blocks and the electrode rings with corresponding numbers and positions, so that the inner side and the outer side of the splicing part of each steel branch pipe and the stainless steel connecting pipe are respectively provided with a group of electrode blocks and electrode rings, and each electrode block and electrode ring are respectively connected with a power supply through an independent wire, thereby simultaneously carrying out the resistance welding operation on a plurality of steel branch pipes and the stainless steel connecting pipes, effectively improving the welding speed and accelerating the processing speed. The preliminary installation and positioning of the stainless steel connecting pipe are realized through the electrode block and the connecting rod, and the further positioning is realized through the limiting plate, then the supporting seat supports and lifts the stainless steel connecting pipe, the electrode rings horizontally position the steel branch pipes, the steel branch pipes accurately position the axial angle of the stainless steel connecting pipe, each steel branch pipe is ensured to be inserted into a corresponding jack on the stainless steel connecting pipe, the stainless steel connecting pipe is pressed and limited through the top pressure plate, the stability of the stainless steel connecting pipe is ensured, the stainless steel connecting pipe is prevented from moving in the welding process, the stainless steel connecting pipe and the steel branch pipes are pressurized, the pressure directions applied by the stainless steel connecting pipe and the steel branch pipes face the splicing position of the steel branch pipes and the stainless steel connecting pipe, therefore, the subsequent welding quality is improved, the electrode block and the electrode ring are respectively connected with the positive electrode and the negative electrode of the power supply and are electrified for resistance welding, the integral design is reasonable, and the use and the operation are convenient and simple.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of a header assembly of a heat exchanger according to the present invention;
FIG. 2 is a schematic view of the backside structure of the present invention;
FIG. 3 is a schematic view of the installation structure of the first stainless steel adapter tube and the second stainless steel adapter tube in the present invention;
FIG. 4 is a schematic structural view of a stabilizer of the present invention;
FIG. 5 is an exploded view of the stabilizing frame of the present invention;
FIG. 6 is a schematic view of the installation structure of the first stainless steel adapter tube and the welding device in the present invention;
FIG. 7 is a schematic view of a welding apparatus according to the present invention;
FIG. 8 is a schematic view of the structure of the clamping frame of the present invention;
FIG. 9 is a schematic view of an installation structure of the top plate and the supporting base according to the present invention.
In the figure: 1-a first stainless steel adapter tube; 2-a second stainless steel adapter tube; 3-a three-way joint; 4-steel pipe distribution; 5-a stabilizing frame; 6-steel bent pipe; 7-sealing cap; 8-a support plate; 9-pressing a frame; 10-mounting a plate; 11-mounting holes; 12-a positioning plate; 13-a compacting plate; 14-adjusting the screw; 15-a through hole; 16-a fastening nut; 17-a positioning ring; 18-a plunger; 19-a slot; 20-set screws; 21-connecting screw; 22-a connecting rod; 23-an electrode block; 24-a limiting plate; 25-a first limit screw; 26-horizontal support plate; 27-a clamping frame; 28-a second limit screw; 29-a support seat; 30, a limit frame; 31-a fixing frame; 32-a limiting rod; 33-a clamping nut; 34-a connecting shaft; 35-a top plate; 36-a third limit screw; 37-a stop collar; 38-placing the groove; 39-a first jacking cylinder; 40-a second jacking cylinder; 41-push plate; 42-a limit cover; 43-adjusting the cylinder; 44-mounting a rod; 45-electrode ring; 46-a perforated slot; 47-fixing the clamping frame; 48-a top pressing plate; 49-extension plate.
Detailed Description
As shown in fig. 1 to 5, the header assembly of the heat exchanger header of the present invention comprises a stainless steel connecting pipe and a stabilizing frame 5, wherein the stainless steel connecting pipe comprises a first stainless steel connecting pipe 1 and a second stainless steel connecting pipe 2, one end of the first stainless steel connecting pipe 1 is connected with one end of the second stainless steel connecting pipe 2 through a three-way joint 3, at least two steel branch pipes 4 are respectively arranged on the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2, and the stabilizing frame 5 is respectively arranged on the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2.
The other end threaded connection of first stainless steel takeover 1 has steel return bend 6, adopts threaded connection's detachable mode between steel return bend 6 and the first stainless steel takeover 1, can be convenient for actual dismantlement, connects nimble reliably, designs into detachable connected mode between steel return bend 6 and the first stainless steel takeover 1 in addition, can reduce cost of maintenance expense, when one of them goes wrong in the two, need not whole change, only need can with the part change of going wrong. The other end threaded connection of second stainless steel takeover 2 has sealing cap 7, and reasonable in design shelters from the other end of second stainless steel takeover 2 through sealing cap 7 and seals, guarantees the normal use of gas collecting tube subassembly, adopts threaded connection moreover both can be convenient for the dismouting of sealing cap 7, can guarantee sealing cap 7 again and second stainless steel takeover 2 be connected the compactness.
The stabilizing frame 5 comprises a supporting plate 8 and a pressing frame 9, the pressing frame 9 is adjustably connected with the supporting plate 8, the stainless steel connecting pipe is clamped and limited between the supporting plate 8 and the pressing frame 9, the stainless steel connecting pipe is clamped and limited through the pressing frame 9 and the supporting plate 8, connection between the stabilizing frame 5 and the stainless steel connecting pipe is achieved, connection firmness between the stainless steel connecting pipe and the supporting plate is guaranteed, the surfaces of the supporting plate 8 and the pressing frame 9, which are in direct contact with the stainless steel connecting pipe, are of arc structures, the supporting plate 8 can be guaranteed, the contact area between the pressing frame 9 and the stainless steel connecting pipe can be guaranteed, the clamping effect of the stainless steel connecting pipe is improved, an adjustable connection mode is adopted between the pressing frame 9 and the supporting plate 8, the stabilizing frame 5 can be adjusted according to the actual pipe diameter of the stainless steel connecting pipe, and clamping and fixing of the stainless steel connecting pipes with different pipe diameters are.
Be provided with mounting panel 10 on the support flat plate 8, be provided with mounting hole 11 on the mounting panel 10, reasonable in design reserves mounting hole 11 on mounting panel 10, can realize that the installation between firm frame 5 and the equipment is fixed, and firm frame 5 is fixed with stainless steel connecting pipe clamp fastening again to realize that the indirect installation between pipeline and the equipment is fixed, mounting means is simple and convenient, the dismouting of being convenient for.
The pressing frame 9 comprises a positioning plate 12 and two pressing plates 13, the two pressing plates 13 are symmetrically arranged at two ends of one side of the positioning plate 12, two adjusting screws 14 are symmetrically arranged on the pressing plates 13, through holes 15 are formed in the four corners of the supporting flat plate 8, the adjusting screws 14 are matched with the through holes 15, the end parts of the adjusting screws 14 penetrate through the through holes 15, and fastening nuts 16 are arranged at the end parts of the adjusting screws 14, the whole structure design is compact and reasonable, the contact area between the pressing frame 9 and a stainless steel connecting pipe can be ensured through the design of the two pressing plates 13, the pressing effect is ensured, each pressing plate 13 corresponds to two adjusting screws 14, the pressing plates 13 are clamped in the two through holes 15 which correspond up and down through the adjusting screws 14, the movable insertion connection between the pressing frame 9 and the supporting flat plate 8 is realized, the distance between the pressing plates 13 and the supporting flat plate 8 is adjusted by adjusting the length of the adjusting screws 14 penetrating through, thereby realize pressing from both sides tight fixedly to the stainless steel of different pipe diameters takeover, after the pressure strip 13 adjustment targetting in place, screw up fastening nut 16 to guarantee to press the connection steadiness between frame 9 and the support plate 8, guarantee the installation fastness between stabilizing frame 5 and the stainless steel takeover.
Positioning rings 17 are arranged at two ends of a positioning plate 12, the positioning rings 17 are matched with steel branch pipes 4, the positioning rings 17 are sleeved on the steel branch pipes 4, inserting rods 18 are arranged on the positioning rings 17, inserting grooves 19 are arranged at two ends of the positioning plate 12, the inserting rods 18 are matched with the inserting grooves 19, the inserting rods 18 are inserted in the inserting grooves 19, the inserting rods 18 are limited and fixed with the positioning plates 12 through fastening screws 20, accurate installation and positioning of the stabilizing frame 5 on the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2 can be ensured through ingenious design of the positioning rings 17, the steel branch pipes 4 of the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2 are positioned on the same side after being assembled, end faces of the steel branch pipes 4 are flush with each other, accurate sleeving connection between the pressing frame 9 and the steel branch pipes 4 on the stainless steel connecting pipes is realized through the positioning rings 17 at two sides, and accordingly the installation angles of the stabilizing frames 5 on the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe, thereby be convenient for unify with the further installation between stabilizing frame 5 and the equipment lateral wall fixed, reduce the dismouting degree of difficulty of reality, and ingenious design through inserted bar 18 and slot 19, can change the interval between holding ring 17 and the locating plate 12, make holding ring 17 can cup joint on the steel branch pipe 4 that corresponds, pressure frame 9 can adjust according to the interval between two adjacent steel branch pipes 4, guarantee that stabilizing frame 5 can install on the pipeline section between two steel branch pipes 4, adjust the back and screw up set screw 20 and just can guarantee the installation fastness of holding ring 17 and locating plate 12, ensure the structure steadiness of pressure frame 9, structural design is ingenious reasonable, simple to operate.
As shown in fig. 6 to 9, the manufacturing method using the heat exchanger header gas collecting tube assembly as described above includes the following steps:
1) preparation of stainless steel connecting pipes and steel branch pipes 4: preparing a first stainless steel connecting pipe 1, a second stainless steel connecting pipe 2 and a steel branch pipe 4 with corresponding pipe diameters according to design requirements, then punching the surfaces of the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2 to form jacks, and then processing external threads at one end of the first stainless steel connecting pipe 1 and one end of the second stainless steel connecting pipe 2;
2) welding the stainless steel connecting pipe and the steel branch pipe 4:
(1) firstly, welding the first stainless steel connecting pipe 1 and the steel branch pipe 4, sleeving the first stainless steel connecting pipe 1 from the unfixed end of the connecting rod 22, properly adjusting the position of the first stainless steel connecting pipe 1 to enable the electrode block 23 on the connecting rod 22 to be just clamped in the first stainless steel connecting pipe 1, and continuously pushing the first stainless steel connecting pipe 1 until the end part of the first stainless steel connecting pipe 1 is abutted to the limiting plate 24 at the other end of the connecting rod 22; the connecting rod 22 and the electrode block 23 are used for realizing accurate clamping and limiting of the stainless steel connecting pipe, and the design of the limiting plate 24 at the other end of the connecting rod 22 is used for ensuring that the stainless steel connecting pipe is further clamped in place, so that the jacks on the stainless steel connecting pipe are in one-to-one correspondence with the electrode blocks 23 on the connecting rod 22, the installation is convenient and simple, and the subsequent adjustment of the stainless steel connecting pipe is facilitated;
(2) loosening the first limiting screw 25, moving the clamping frame 27 along the horizontal support plate 26, adjusting the position of the clamping frame 27 to enable the clamping frame 27 to avoid the jack on the surface of the first stainless steel adapter tube 1, then tightening the first limiting screw 25, then loosening the second limiting screw 28, moving the supporting seat 29, enabling the supporting seat 29 to move along the limiting rod 32 on the fixing frame 31 through the limiting frame 30 at the bottom, and tightening the second limiting screw 28 until the supporting seat 29 abuts against the first stainless steel adapter tube 1; the position of the clamping frame 27 on the horizontal support plate 26 is adjusted, the fixing frame 31 on the clamping frame 27 is movably clamped on the horizontal support plate 26 through the perforated groove 46, the moving horizontality of the clamping frame 27 is ensured, the clamping frame 27 is moved to ensure that the clamping frame 27 is positioned between the pipe sections between the jacks, so that the clamping frame 27 cannot influence the welding operation between the steel branch pipe 4 and the stainless steel connecting pipe, the supporting seat 29 is supported and abutted on the bottom surface of the stainless steel connecting pipe by adjusting the height of the supporting seat 29, the limiting frame 30 moves along the limiting rod 32 to ensure the verticality of the supporting seat 29, the bottom of the stainless steel connecting pipe is supported and lifted through the supporting seat 29, the supporting pressure of the connecting rod 22 is reduced, the placing of the stainless steel connecting pipe is more stable and reliable, the integral adjustment is simple and convenient;
(3) the steel branched pipe 4 passes through the electrode ring 45 and moves towards the first stainless steel connecting pipe 1, and meanwhile, the first stainless steel connecting pipe 1 is properly rotated, so that the welding head part of the steel branched pipe 4 is just inserted into the jack on the surface of the first stainless steel connecting pipe 1 and is abutted against the electrode block 23 in the corresponding jack; the electrode rings 45 correspond to the electrode blocks 23 one by one, the primary positioning of the steel branched pipe 4 is realized through the electrode rings 45, the installation horizontality of the steel branched pipe 4 is ensured, the steel branched pipe 4 corresponds to the jacks one by one, further accurate positioning is carried out on the axial angle of the stainless steel connecting pipe through the steel branched pipe 4 and the jacks, the electrode blocks correspond to the electrode rings one by one, so that the electrode blocks 23 are also exactly positioned at the corresponding jacks, the integral installation and operation are convenient, and any size measurement is not needed;
(4) loosening the clamping nut 33, rotating the top plate 35 along the connecting shaft 34, rotating the top plate 35 to a position above the top surface of the first stainless steel adapter tube 1, then tightening the clamping nut 33, then loosening the third limiting screw 36, then loosening the limiting ring 37, moving the connecting screw 21 on the top plate 48 downwards, so that the top plate 48 moves out of the placing groove 38 in the bottom surface of the top plate 35 and continues to move downwards until the top plate 48 abuts against the top surface of the first stainless steel adapter tube 1, tightening the limiting ring 37, and then tightening the third limiting screw 36; the final position of the stainless steel connecting pipe is adjusted in place, so that the stainless steel connecting pipe is clamped and limited by the top pressure plate 48 in cooperation with the corresponding supporting seat 29, the stability of the stainless steel connecting pipe is ensured, the phenomenon that the actual welding operation is influenced by the movement of the stainless steel connecting pipe in the subsequent welding process is effectively prevented, the integral operation is convenient, the downward movement of the connecting screw rod 21 is limited by the limiting ring 37, the extending plate 49 is arranged on the limiting ring 37, the upward movement of the connecting screw rod 21 can be limited by the extending plate 49 through the third limiting screw 36, and the pressing and limiting operation of the top pressure plate 48 on the top surface of the stainless steel connecting pipe is ensured, so that the design is ingenious, and the adjustment;
(5) the first jacking cylinder 39 and the second jacking cylinder 40 are started simultaneously, the telescopic rod of the first jacking cylinder 39 extends to push the push plate 41 to move until the limiting cover 42 on the push plate 41 is clamped into the end part of the corresponding steel branch pipe 4 and is pressed against the end part of the steel branch pipe 4, the second jacking cylinder 40 applies horizontal thrust moving towards the direction of the steel branch pipe 4 to the horizontal support plate 26 through the telescopic rod, and the first stainless steel connecting pipe 1 is fixed on the horizontal support plate 26, so that the thrust is indirectly applied to the first stainless steel connecting pipe 1; the first jacking cylinder 39 and the second jacking cylinder 40 are started simultaneously to pressurize the steel branch pipe 4 and the stainless steel connecting pipe simultaneously, so that the normal operation of subsequent resistance welding is ensured, the first jacking cylinder 39 can pressurize the steel branch pipe 4, the end part of the steel branch pipe 4 can be further clamped and limited through the design of the limiting cover 42 on the push plate 41, the levelness of the steel branch pipe 4 is ensured by matching with the electrode ring 45, the mutual perpendicularity performance of the steel branch pipe 4 and the stainless steel connecting pipe after primary splicing is ensured, and the quality of subsequent welding is ensured;
(6) starting the adjusting cylinder 43, retracting the telescopic rod, and driving the electrode ring 45 to move by the telescopic rod through the mounting rod 44 until the electrode ring 45 abuts against the splicing part of the steel branch pipe 4 and the first stainless steel connecting pipe 1; the electrode ring 45 is moved to the outer side of the splicing part of the steel branched pipe 4 and the stainless steel connecting pipe, and the electrode block 23 is arranged on the inner side of the corresponding jack, so that the electrode block 23 and the electrode ring 45 at the corresponding positions inside and outside the same jack form a group, and the quality of subsequent resistance welding can be effectively improved by moving to the splicing part;
(7) respectively connecting the electrode block 23 and the electrode ring 45 with the anode and the cathode of a welding power supply, and switching on the welding power supply to perform welding operation until the welding is finished; a group of electrode blocks 23 and electrode rings 45 are arranged on the inner side and the outer side of the splicing part of each steel branch pipe 4 and the stainless steel connecting pipe, and each electrode block 23 and each electrode ring 45 are connected with a power supply through an independent line, so that the simultaneous electric resistance welding operation can be simultaneously carried out on a plurality of steel branch pipes 4 and the stainless steel connecting pipes, the welding speed is effectively improved, and the processing speed is accelerated;
(8) welding operation of the second stainless steel connecting pipe 2 and the steel branch pipe 4 is carried out according to the welding procedure of the first stainless steel connecting pipe 1 and the steel branch pipe 4; after a finished product obtained by welding the first stainless steel connecting pipe 1 and the steel branch pipe 4 is taken down from the welding device, all parts are reset, and then welding operation of the second stainless steel connecting pipe 2 and the steel branch pipe 4 is carried out according to the welding operation steps of the first stainless steel connecting pipe 1 and the steel branch pipe 4, so that the welding device is reasonable in design and convenient to use;
3) assembling the gas collecting pipe assembly:
(1) selecting a steel bent pipe 6 and a sealing cap 7 with proper sizes, connecting the steel bent pipe 6 to the external thread end part of the first stainless steel connecting pipe 1 in a threaded manner, and screwing the sealing cap 7 to the external thread end part of the second stainless steel connecting pipe 2 in a threaded manner; the screw connection is adopted, so that the installation is simple and convenient;
(2) selecting a three-way joint 3 with proper size, combining and connecting the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2 through the three-way joint 3, and ensuring that the end surfaces of the steel branch pipes 4 on the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2 are flush; connecting and conducting the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2 through the three-way joint 3, adjusting the axial angle of the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2, and winding, sealing and reinforcing a sealing adhesive tape at the connecting end part of the three-way joint 3 and the stainless steel connecting pipe after the adjustment is in place;
(3) selecting a stable frame 5 with proper size, selecting the installation positions of the stable frame 5 on the first stainless steel connecting pipe 1 and the second stainless steel connecting pipe 2 according to the installation requirements of the gas collecting pipe assembly, and the stabilizing frame 5 is arranged on the pipeline section between two adjacent steel branch pipes 4, the set screw 20 is loosened, the length of the inserted rod 18 inserted into the slot 19 is adjusted, so that the positioning rings 17 at the two sides of the positioning plate 12 are just sleeved on the two corresponding steel branch pipes 4, the set screw 20 is screwed down, the positioning plate 12 is moved towards the stainless steel connecting pipe until the pressing plate 13 is abutted against the side surface of the stainless steel connecting pipe, the supporting flat plate 8 is installed, the adjusting screw 14 passes through the through hole 15 on the supporting flat plate 8, the supporting flat plate 8 is continuously moved along the adjusting screw 14 until the supporting flat plate 8 is abutted against the stainless steel connecting pipe, screwing in the fastening nut 16 from the end of the adjusting screw 14 and tightening the fastening nut 16; the installation and positioning of the pressing frame 9 and the stainless steel connecting pipe are realized through the positioning ring 17, the installation and positioning of the flat plate 8 are assisted through the positioned pressing frame 9, the distance between the pressing frame and the flat plate is adjusted, the stainless steel connecting pipe is clamped and limited, the overall design is ingenious and reasonable, the installation and the disassembly are convenient and simple, the operation is convenient, the size measurement is not needed in the whole installation process, and the parts which are installed firstly are used for assisting the guiding of the parts which are installed subsequently;
(4) the assembled gas collecting pipe assembly is installed in the heat exchanger, and the gas collecting pipe assembly is installed and fixed in the heat exchanger through the installation holes 11 matched with screws with corresponding sizes; the assembled gas collecting pipe assembly is installed and fixed to the formulated position of the heat exchanger through the installation hole 11, the installation and the disassembly are convenient, any punching and welding operation on the surface of a pipeline is not needed, the installation firmness of the gas collecting pipe assembly can be guaranteed, and the normal use of the gas collecting pipe assembly is facilitated.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (8)
1. The heat exchanger header discharge subassembly, its characterized in that: including stainless steel takeover and firm frame, the stainless steel takeover includes first stainless steel takeover and second stainless steel takeover, the one end of first stainless steel takeover with the one end of second stainless steel takeover is connected through the three-way joint, first stainless steel takeover with all be provided with two at least steel on the second stainless steel takeover and divide the pipe, first stainless steel takeover with all be provided with on the second stainless steel takeover the firm frame.
2. The heat exchanger header manifold assembly of claim 1, wherein: and the other end of the first stainless steel connecting pipe is in threaded connection with a steel bent pipe.
3. The heat exchanger header manifold assembly of claim 1, wherein: and the other end of the second stainless steel connecting pipe is in threaded connection with a sealing cap.
4. The heat exchanger header manifold assembly of claim 1, wherein: the stabilizing frame comprises a supporting flat plate and a pressing frame, the pressing frame is adjustably connected with the supporting flat plate, and the stainless steel connecting pipe is clamped and limited between the supporting flat plate and the pressing frame.
5. The heat exchanger header manifold assembly of claim 4, wherein: the support plate is provided with a mounting plate, and the mounting plate is provided with a mounting hole.
6. The heat exchanger header manifold assembly of claim 4, wherein: the pressing frame comprises a positioning plate and two pressing plates, the two pressing plates are symmetrically arranged at two ends of one side of the positioning plate, two adjusting screws are symmetrically arranged on the pressing plates, through holes are formed in the four corners of the supporting plate, the adjusting screws are matched with the through holes, the ends of the adjusting screws penetrate through the through holes, and fastening nuts are arranged at the ends of the adjusting screws.
7. The heat exchanger header manifold assembly of claim 6, wherein: the two ends of the positioning plate are respectively provided with a positioning ring, the positioning rings are matched with the steel branch pipes, the positioning rings are sleeved on the steel branch pipes, inserting rods are arranged on the positioning rings, slots are formed in the two ends of the positioning plate, the inserting rods are matched with the slots, the inserting rods are inserted into the slots, and the inserting rods are fixed in a limiting mode through set screws.
8. The method for manufacturing the gas collecting pipe assembly of the heat exchanger header according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
1) preparing stainless steel connecting pipes and steel branch pipes: preparing a first stainless steel connecting pipe, a second stainless steel connecting pipe and a steel branch pipe with corresponding pipe diameters according to design requirements, then punching the surfaces of the first stainless steel connecting pipe and the second stainless steel connecting pipe to form inserting holes, and then processing external threads at one end of the first stainless steel connecting pipe and one end of the second stainless steel connecting pipe;
2) welding the stainless steel connecting pipe and the steel branch pipe:
(1) firstly, welding a first stainless steel connecting pipe and a steel branch pipe, sleeving the first stainless steel connecting pipe from the unfixed end of a connecting rod, properly adjusting the position of the first stainless steel connecting pipe to enable an electrode block on the connecting rod to be just clamped in the first stainless steel connecting pipe, and continuously pushing the first stainless steel connecting pipe until the end part of the first stainless steel connecting pipe is abutted to a limiting plate at the other end of the connecting rod;
(2) loosening the first limiting screw, moving the clamping frame along the horizontal support plate, adjusting the position of the clamping frame to enable the clamping frame to avoid the jack on the surface of the first stainless steel connecting pipe, then tightening the first limiting screw, then loosening the second limiting screw, moving the supporting seat along the limiting rod on the fixing frame through the limiting frame at the bottom of the supporting seat, and tightening the second limiting screw until the supporting seat abuts against the first stainless steel connecting pipe;
(3) moving the steel branch pipe from the electrode ring to the first stainless steel connecting pipe in a penetrating way, and simultaneously rotating the first stainless steel connecting pipe properly to ensure that the welding head part of the steel branch pipe is just inserted into the jack on the surface of the first stainless steel connecting pipe and abuts against the electrode block in the corresponding jack;
(4) loosening the clamping nut, rotating the top plate along the connecting shaft, rotating the top plate to the position above the top surface of the first stainless steel connecting pipe, then tightening the clamping nut, then loosening the third limiting screw, then loosening the limiting ring, and moving the connecting screw on the top plate downwards, so that the top plate is moved out of the placing groove in the bottom surface of the top plate and continuously moves downwards until the top plate abuts against the top surface of the first stainless steel connecting pipe, tightening the limiting ring, and then tightening the third limiting screw;
(5) the first jacking cylinder and the second jacking cylinder are started simultaneously, the telescopic rod of the first jacking cylinder extends to push the push plate to move until the limiting cover on the push plate is clamped into the end part of the corresponding steel branch pipe and is abutted against and pressed against the end part of the steel branch pipe, the second jacking cylinder applies horizontal thrust moving towards the direction of the steel branch pipe to the horizontal support plate through the telescopic rod, and the first stainless steel connecting pipe is fixed on the horizontal support plate, so that the thrust is indirectly applied to the first stainless steel connecting pipe;
(6) starting an adjusting cylinder, retracting a telescopic rod, driving an electrode ring to move by the telescopic rod through an installation rod until the electrode ring abuts against the splicing part of the steel branch pipe and the first stainless steel connecting pipe;
(7) respectively connecting the electrode block and the electrode ring with the anode and the cathode of a welding power supply, and switching on the welding power supply to perform welding operation until the welding is finished;
(8) welding a second stainless steel connecting pipe and a steel branch pipe according to the welding procedure of the first stainless steel connecting pipe and the steel branch pipe;
3) assembling the gas collecting pipe assembly:
(1) selecting a steel bent pipe and a sealing cap with proper sizes, connecting the steel bent pipe to the external thread end part of the first stainless steel connecting pipe in a threaded manner, and screwing the sealing cap to the external thread end part of the second stainless steel connecting pipe in a threaded manner;
(2) selecting a three-way joint with a proper size, connecting the first stainless steel connecting pipe and the second stainless steel connecting pipe in a combined manner through the three-way joint, and ensuring that the end surfaces of the steel branch pipes on the first stainless steel connecting pipe and the second stainless steel connecting pipe are flush;
(3) selecting a stabilizing frame with a proper size, selecting the mounting positions of the stabilizing frame on a first stainless steel connecting pipe and a second stainless steel connecting pipe according to the mounting requirements of a gas collecting pipe assembly, arranging the stabilizing frame on the pipeline section between two adjacent steel branch pipes, loosening a set screw, adjusting the length of an inserted rod inserted into a slot, enabling positioning rings on two sides of a positioning plate to be just sleeved on the two corresponding steel branch pipes, tightening the set screw, moving the positioning plate towards the direction of the stainless steel connecting pipe until a compression plate is abutted against the side surface of the stainless steel connecting pipe, mounting a support flat plate, penetrating an adjusting screw through a through hole in the support flat plate, continuously moving the support flat plate along the adjusting screw until the support flat plate is abutted against the stainless steel connecting pipe, screwing a fastening nut from the end part of the adjusting screw, and tightening the fastening nut;
(4) and (4) installing the assembled gas collecting pipe assembly into the heat exchanger, and installing and fixing the gas collecting pipe assembly into the heat exchanger by matching the installation holes with screws with corresponding sizes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010464843.2A CN111482779A (en) | 2020-05-28 | 2020-05-28 | Header gas collecting pipe component of heat exchanger and manufacturing method thereof |
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| CN202010464843.2A CN111482779A (en) | 2020-05-28 | 2020-05-28 | Header gas collecting pipe component of heat exchanger and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756855A (en) * | 2020-12-23 | 2021-05-07 | 烟台万华电子材料有限公司 | Method for welding and connecting two pipe fittings by adopting pipe fitting welding device |
| CN113706489A (en) * | 2021-08-18 | 2021-11-26 | 珠海格力智能装备有限公司 | Elbow plugging processing method and device, storage medium and elbow plugging equipment |
| CN116871808A (en) * | 2023-08-26 | 2023-10-13 | 诸暨市铭阳金属股份有限公司 | Air conditioner gas collecting tube assembly welding set of accurate location |
| CN113706489B (en) * | 2021-08-18 | 2024-05-28 | 珠海格力智能装备有限公司 | Elbow splicing processing method and device, storage medium and elbow splicing equipment |
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2020
- 2020-05-28 CN CN202010464843.2A patent/CN111482779A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756855A (en) * | 2020-12-23 | 2021-05-07 | 烟台万华电子材料有限公司 | Method for welding and connecting two pipe fittings by adopting pipe fitting welding device |
| CN112756855B (en) * | 2020-12-23 | 2022-12-27 | 烟台万华电子材料有限公司 | Method for welding and connecting two pipe fittings by adopting pipe fitting welding device |
| CN113706489A (en) * | 2021-08-18 | 2021-11-26 | 珠海格力智能装备有限公司 | Elbow plugging processing method and device, storage medium and elbow plugging equipment |
| CN113706489B (en) * | 2021-08-18 | 2024-05-28 | 珠海格力智能装备有限公司 | Elbow splicing processing method and device, storage medium and elbow splicing equipment |
| CN116871808A (en) * | 2023-08-26 | 2023-10-13 | 诸暨市铭阳金属股份有限公司 | Air conditioner gas collecting tube assembly welding set of accurate location |
| CN116871808B (en) * | 2023-08-26 | 2024-01-19 | 诸暨市铭阳金属股份有限公司 | Air conditioner gas collecting tube assembly welding set of accurate location |
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