CN113340039A - Cold source acquisition system for welding - Google Patents
Cold source acquisition system for welding Download PDFInfo
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- CN113340039A CN113340039A CN202110636210.XA CN202110636210A CN113340039A CN 113340039 A CN113340039 A CN 113340039A CN 202110636210 A CN202110636210 A CN 202110636210A CN 113340039 A CN113340039 A CN 113340039A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
Abstract
The invention discloses a cold source acquisition system for welding, which comprises a cold source device for welding and a cooling liquid hydraulic control system, wherein the cold source device for welding comprises a shell, the shell is a cylindrical structure with end covers at two ends in a sealing way, a plurality of shielding gas channels are arranged in the shell, and the shielding gas channels are arranged along the axis of the shell; the side wall of the shell and the protective gas channel enclose a cooling liquid channel; the end cover is provided with an air pipe and a cooling liquid pipe; the air pipe is respectively communicated with the plurality of protective air channels through a plurality of branch air pipes; the cooling liquid pipe is communicated with the cooling liquid channel, and the cooling liquid hydraulic control system comprises a hydraulic device and an electronic control unit and is used for realizing cooling liquid circulation in the cooling liquid channel. The invention has simple structure and low cost, and adopts cooling liquid circulation to cool the shielding gas, thereby realizing rapid cooling of the shielding gas in the welding process, further obtaining a cold source for welding and improving the welding quality.
Description
Technical Field
The invention belongs to the technical field of gas shielded welding equipment, and particularly relates to a cold source acquisition system for welding.
Background
Many scholars have proposed many control methods for controlling welding stress and deformation and applied to actual production, but these methods still have shortcomings in controlling welding deformation of titanium alloy materials, and thus, most methods are not suitable for welding manufacture of titanium alloy sheets for aviation. In order to avoid the dependence on a preset temperature field during welding, the forced cooling method is invented, and comprises a welding-following chilling method, a dynamic low-stress deformation-free method and the like, the forced cooling method can be suitable for circular, annular and irregular welding seams commonly used on aviation complex structures, and meanwhile, water is synchronously sprayed during the welding process.
Disclosure of Invention
In order to solve the technical problems, the invention provides the cold source acquisition system for welding, which has the advantages of simple structure and low cost, and can realize rapid cooling of the shielding gas in the welding process and improve the welding quality.
The technical scheme adopted by the invention is as follows:
a cold source acquisition system for welding is characterized in that: comprises a cold source device for welding and a cooling liquid hydraulic control system;
the cold source device for welding comprises a shell, wherein the shell is a cylindrical structure with end covers at two ends in a sealing mode, a plurality of shielding gas channels are arranged in the shell, and the shielding gas channels are arranged along the axis of the shell; the side wall of the shell and the protective gas channel enclose a cooling liquid channel; the end cover is provided with an air pipe and a cooling liquid pipe; the air pipe is respectively communicated with the plurality of protective air channels through a plurality of branch air pipes; the cooling liquid pipe is communicated with the cooling liquid channel; the gas pipe for gas outlet and the cooling liquid pipe for liquid outlet are respectively provided with a temperature sensor;
the hydraulic control system of the cooling liquid comprises a hydraulic device and an electronic control unit, wherein the hydraulic device comprises a liquid storage tank, a large oil pump, a motor I, a cartridge valve II, a cartridge valve III, a cartridge valve IV, a throttle valve I, a throttle valve III and an electromagnetic directional valve; a rotating shaft of the large oil pump is connected with an output shaft of the motor I; the inlet of a large oil pump is connected with the liquid storage tank through a liquid inlet pipe, the outlet of the large oil pump is connected with the inlet of a cartridge valve II through a liquid outlet pipe I, the outlet of the cartridge valve II is connected with a cooling liquid pipe for liquid inlet of a cold source device for welding through a liquid outlet pipe II, the cooling liquid pipe for liquid outlet of the cold source device for welding is connected with the inlet of a cartridge valve IV through a liquid return pipe I, the outlet of the cartridge valve IV is connected back to the liquid storage tank through a liquid return pipe II, and a cooler I is arranged on the liquid return pipe II; the liquid return pipe I is connected with the liquid outlet pipe II through a connecting pipe I, the connecting pipe I is provided with a cartridge valve III, a cooler II and a one-way valve III, and the cartridge valve III and the cooler II are positioned between the one-way valve III and the liquid return pipe I; a control port of the cartridge valve II is connected with the liquid outlet pipe I through a control liquid pipe II; a control port of the cartridge valve III is connected with a liquid outlet of a two-position three-way electromagnetic valve, a liquid return port of the two-position three-way electromagnetic valve is connected with a liquid storage tank, and a liquid inlet of the two-position three-way electromagnetic valve is connected with a liquid outlet of the shuttle valve; the connecting pipe I is connected with a liquid inlet of the shuttle valve through a connecting pipe III, and a connecting outlet of the connecting pipe I and the connecting pipe III is positioned between the cooler II and the cartridge valve III; the liquid return pipe I is connected with the other liquid inlet of the shuttle valve; a control port of the cartridge valve IV is connected with a connecting pipe I through a control liquid pipe I, the joint of the control liquid pipe I and the connecting pipe I is positioned between a one-way valve III and a liquid outlet pipe II, and a throttle valve I is arranged on the control liquid pipe I; the control liquid pipe I is respectively connected with an inlet of an overflow valve III and an inlet of the electromagnetic directional valve, and an outlet of the overflow valve III and an outlet of the electromagnetic directional valve are connected back to the liquid storage tank; the electronic control unit is respectively connected with the motor controller I, a control port of the electromagnetic reversing valve, a control port of the two-position three-way electromagnetic valve and the temperature sensor, and the output end of the motor controller I is connected with the motor I.
In the cold source acquiring system for welding, the plurality of shielding gas channels are arranged on the inner side wall of the shell and are uniformly arranged along the circumferential direction; and a plurality of guide impellers are respectively arranged in each shielding gas channel.
In the cold source obtaining system for welding, one of the guide vanes in the shielding gas channel, which is close to the gas outlet end, is reversely installed, and the other guide vanes are forwardly installed.
In the cold source acquiring system for welding, a plurality of heat insulation grooves are arranged in the side wall of the shell and are arc-shaped grooves, the heat insulation grooves are uniformly arranged along the circumferential direction, and heat insulation materials are filled in the heat insulation grooves.
In the cold source acquiring system for welding, the cross section of the branch pipe is rectangular, and the cross section of the cooling liquid pipe is circular; the section of the air pipe is circular, rectangular or triangular; the cross-sectional shape of the shielding gas channel is circular, rectangular or triangular.
In the cold source acquisition system for welding, the cooling liquid introduced into the cooling liquid pipe adopts liquid nitrogen.
In the cold source acquiring system for welding, the hydraulic device further comprises a motor II and a small oil pump; a rotating shaft of the small oil pump is connected with an output shaft of a motor II, and the motor II is connected with an electronic control unit through a motor controller II; the inlet of the small oil pump is connected with the liquid storage tank through a pipeline, and the outlet of the small oil pump is connected with the connecting pipe II through a liquid outlet pipe III; an overflow valve IV, a cartridge valve I and a one-way valve I are arranged on the connecting pipe II, and the outlet of the overflow valve IV is connected back to the liquid storage tank; a control port of the cartridge valve I is connected with a liquid outlet of a two-position three-way reversing valve; a liquid inlet of the two-position three-way reversing valve is connected with a connecting pipe II, and the connection is positioned between the cartridge valve I and the one-way valve I; the control port of the two-position three-way reversing valve is connected with the control liquid pipe I through the control liquid pipe III, and the control liquid pipe III is provided with a throttle valve.
In the cold source acquisition system for welding, a one-way valve II is arranged on the liquid outlet pipe II; the joint of the connecting pipe I and the liquid outlet pipe II is positioned between the one-way valve II and the cold source device for welding.
In the cold source acquisition system for welding, the liquid outlet pipe I is connected with the inlet of the overflow valve I through the branch pipe, and the outlet of the overflow valve I is connected back to the liquid storage tank.
Compared with the prior art, the invention has the beneficial effects that:
the invention has simple structure and low cost, and adopts cooling liquid circulation to cool the shielding gas, thereby realizing rapid cooling of the shielding gas in the welding process, further obtaining a cold source for welding and improving the welding quality.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a perspective view of a heat sink device for welding according to the present invention.
FIG. 3 is a front view of the heat sink device for welding according to the present invention.
Fig. 4 is a sectional view taken along line a-a of fig. 3.
Fig. 5 is a sectional view taken along line B-B in fig. 3.
Fig. 6 is a schematic structural view of a guide vane of the cooling source device for welding according to the present invention.
In the figure: 1-shell, 2-bronchus, 3-trachea, 4-coolant pipe, 5-heat insulation groove, 6-protective gas channel, 7-guide impeller, 8-coolant channel, 11-liquid storage tank, 12-ECU control unit, 13-filter I, 14-big oil pump, 15-motor I, 16-motor controller 1, 17-filter II, 18-small oil pump, 19-motor II, 20-motor controller 2, 21-cartridge valve I, 22-one-way valve I, 23-throttle valve I, 24-cartridge valve II, 25-two-position three-way electromagnetic valve, 26-cartridge valve III, 27-temperature sensor I, 28-temperature sensor II, 29-shuttle valve, 30-cartridge valve IV, 31-electromagnetic directional valve, 32-cooler I, 33-overflow valve I, 34-check valve II, 35-check valve III, 36-overflow valve II, 37-overflow valve III, 38-overflow valve IV, 39-cooler II, 40-throttle valve II, 41-throttle valve III and 42-two-position three-way reversing valve.
Detailed Description
The cooling source device for welding of the present invention is further described with reference to the accompanying drawings.
As shown in figures 1-6, the cooling source device for welding comprises a cooling source device for welding and a cooling liquid hydraulic control system, wherein the cooling source device for welding comprises a shell 1, and the shell 1 is of a cylindrical structure with end covers hermetically arranged at two ends. Be equipped with a plurality of protection gas passageways 6 on the casing 1 inside wall, protection gas passageway 6 sets up along the axis of casing (protection gas passageway 6 can also set up in casing 1, does not contact with casing 1's lateral wall, and both ends are fixed on the end cover of casing 1 tip), installs three water conservancy diversion impeller 7 in every protection gas passageway 6 respectively. The side wall of the housing 1 and the shielding gas channel 6 enclose a cooling liquid channel 8. The end cover is provided with an air pipe 3 and a cooling liquid pipe 4; the air pipe 3 is respectively communicated with a plurality of protective air channels through a plurality of bronchus 2; the coolant pipe 4 communicates with the coolant passage 8. The cross section of the air tube 3 may be circular, rectangular, triangular, or other shapes. The cross section of the bronchus 2 is rectangular, and the cross section of the cooling liquid pipe 4 is circular. The cross-sectional shape of the shielding gas passage 6 is rectangular, and may be other shapes such as circular or triangular.
In order to improve heat exchange efficiency, be equipped with a plurality of heat-insulating groove 5 in the casing lateral wall, heat-insulating groove 5 is the arc wall, and a plurality of heat-insulating groove 5 are followed circumferencial direction evenly distributed, and heat-insulating material is filled to heat-insulating groove 5 intussuseption. The two air pipes are used for air inlet, the air pipe 3 is used for air outlet, and the three guide impellers 7 in the protective air channel 6 are arranged in the forward direction by the air inlet end and the guide impeller 7 in the middle, so that the protective air is guided and divided to flow to three surfaces of the vent groove, which are contacted with the cooling liquid, the contact area of the protective air and the cooling liquid is increased, and the cooling effect is enhanced; the guide vane wheel close to the air outlet end is reversely installed, so that the cooled protective gas is uniformly mixed, and the cooling efficiency is improved. Two cooling liquid pipes 4, one is used for liquid inlet and the other is used for liquid outlet.
The method comprises the following steps: first, a guide vane wheel shown in fig. 6 is installed in the middle of each shielding gas channel 6 and at an end close to the gas pipe for gas intake in the forward direction, and then a guide vane wheel at an end close to the gas pipe for gas exhaust is installed in the reverse direction. Then, inserting the cooling liquid pipe and the vent pipe into a hole of an end cover at the end part of the shell, and sealing; and finally, argon is filled into the gas pipe 3 for gas inlet, and liquid nitrogen is injected into the gas pipe 4 for liquid inlet, so that low-temperature argon is obtained and is used as a cold source for welding.
The cross-sectional shapes of the gas pipe 3, the branch gas pipe 2, and the cooling liquid pipe 4 are not limited as long as they can be fitted to each other. The shape of the shielding gas passage 6 is not limited as long as the contact area between the shielding gas and the coolant can be increased as much as possible. The shape and heat insulating material of the heat insulating tank 5 are not limited as long as the heat insulating effect can be achieved. And a temperature sensor II 28 and a temperature sensor I27 are respectively arranged on the air pipe for air outlet and the cooling liquid pipe for liquid outlet.
As shown in fig. 1, the hydraulic control system for coolant includes a hydraulic device and an electronic control unit ECU.
The hydraulic device comprises a liquid storage tank 11, a large oil pump 14, a motor I15, a small oil pump 18, a motor II 19, a two-position three-way electromagnetic valve 25, a cartridge valve I21, a cartridge valve II 24, a cartridge valve III 26, a cartridge valve IV 30, a throttle valve I23, a throttle valve III 41, a one-way valve II 34, a cartridge valve III 26 and an electromagnetic reversing valve 31. The rotating shaft of the large oil pump 14 is connected with the output shaft of the motor I15; the inlet of the large oil pump 14 is connected with the liquid storage tank through a liquid inlet pipe, and a filter I13 is arranged on the liquid inlet pipe. The export of big oil pump 14 passes through I import A1 of connecting II 24 of plug-in valve of drain pipe, and the import of overflow valve I is connected through the branch pipe to drain pipe I, and the export of overflow valve I links back liquid reserve tank 11. An outlet B1 of the cartridge valve II 24 is connected with a cooling liquid pipe 4 for liquid inlet of a cold source device for welding through a liquid outlet pipe II, the cooling liquid pipe for liquid outlet of the cold source device for welding is connected with an inlet A3 of the cartridge valve IV 30 through a liquid return pipe I, an outlet B3 of the cartridge valve IV 30 is connected back to the liquid storage tank 11 through a liquid return pipe II, and a cooler I32 is arranged on the liquid return pipe II. Liquid return pipe I passes through connecting pipe I and connects drain pipe II, is equipped with cartridge valve III 26, cooler II 39 and III 35 of check valve on the connecting pipe I, and cartridge valve III 26, cooler II 39 are located between III 35 of check valve and the liquid return pipe I. A one-way valve II 34 is arranged on the liquid outlet pipe II; the joint of the connecting pipe I and the liquid outlet pipe II is positioned between the one-way valve II 34 and the cold source device for welding.
The control port K1 of the cartridge valve II 24 is connected with the liquid return pipe I through a control liquid pipe II, the control liquid pipe II is connected with the inlet of the overflow valve III 336, and the outlet of the overflow valve III 336 is connected with the liquid storage tank 11. A control opening K3 of the cartridge valve IV 30 is connected with a connecting pipe I through a control liquid pipe I, the joint of the control liquid pipe I and the connecting pipe I is located between a one-way valve III 35 and a liquid outlet pipe II, and a throttle valve I23 is arranged on the control liquid pipe I. The control liquid pipe I is respectively connected with an inlet of the overflow valve III 37 and an inlet of the electromagnetic directional valve 31, and an outlet of the overflow valve III 37 and an outlet of the electromagnetic directional valve 31 are connected back to the liquid storage tank 11.
The rotating shaft of the small oil pump 18 is connected with the output shaft of the motor II 19, the inlet of the small oil pump 18 is connected with the liquid storage tank 11 through a pipeline, and the pipeline is provided with a filter II 17. The outlet of the small oil pump 18 is connected with a connecting pipe II through a liquid outlet pipe III; and an overflow valve IV, a cartridge valve I21 and a one-way valve I22 are arranged on the connecting pipe II, and the outlet of the overflow valve IV is connected back to the liquid storage tank. The control port of the cartridge valve I21 is connected with the liquid outlet of the two-position three-way reversing valve 42. The liquid return port of the two-position three-way reversing valve 42 is connected with the liquid storage tank 11, and the liquid inlet of the two-position three-way reversing valve 42 is connected with the connecting pipe II, and the connecting part is arranged between the cartridge valve I and the one-way valve I. The control port of the two-position three-way reversing valve 42 is connected with the control liquid pipe I through the control liquid pipe III, and the throttle valve 40 is arranged on the control liquid pipe III.
An Electronic Control Unit (ECU) 12 is respectively connected with an input end of a motor controller I, an input end of a motor controller II, a control port of a two-position three-way electromagnetic valve 25, a control port of an electromagnetic directional valve 31, a temperature sensor I27 and a temperature sensor II 28, and output ends of a motor controller I16 and a motor controller II 20 are respectively connected with a motor I15 and a motor II 19.
When the invention is used, the concrete operation is as follows:
setting the target cooling temperature value of the shielding gas as TTargetThe ECU sends a signal to the motor controller I16, the motor controller I16 controls the motor I15, and then the large oil pump 14 is controlled to draw the cooling liquid from the liquid storage tank 11, the cooling liquid is discharged from the outlet of the large oil pump through the filter I13 and flows to the cartridge valve II 24, and then the cooling liquid flows from the oil outlet B of the cartridge valve II 241Flow out, this time due to B1The pressure of the port is transmitted to the joint of the control liquid pipe I and the connecting pipe I, and then transmitted to the two-position three-way reversing valve 42 through the control liquid pipe I and the control liquid pipe III to reverse the pipe. The inlet A4 and the outlet B4 of the cartridge valve I21 are communicated, the motor controller II 20 receives signals from the ECU 12, the motor II 19 controls the small oil pump 18 to pump cooling liquid from the liquid storage tank and discharge the cooling liquid from the small oil pump outlet through the filter II 17Flow direction cartridge valve I21, join with the coolant liquid of the big oil pump export, flow direction to the coolant liquid pipe 4 that is used for the inlet liquid through cartridge valve II 24 and II 34 check valves together, cool off the protective gas through aforementioned cold source device for the welding, after the cooling, the coolant liquid flows out through the coolant liquid pipe that is used for going out the liquid. Real-time temperature T of protective gas at outlet end of gas pipe is measured by using temperature sensor II 28Real timeAnd transmits the real-time temperature T of the shielding gas to an Electronic Control Unit (ECU) 12Real timeThe target cooling temperature value of the shielding gas is TTargetA comparison is made.
When T isReal time﹥TTargetWhen the cooling system is in use, the ECU does not send a signal to the cartridge valve III 26 to enable the cartridge valve III 26 to keep the disconnected state, the ECU sends a signal to the electromagnetic reversing valve 31 to reverse the electromagnetic reversing valve 31, and the cooling liquid returns to the liquid storage tank 11 through the cartridge valve II 30 and the cooler I32 until TReal time≤TTargetThen proceed to the next step.
When T isReal time≤TTargetWhen the cooling liquid flows into the cooling liquid pipe 4, the cooling liquid flows out from the opening A2 of the cartridge valve III 26 and flows out from the opening B2, and then flows back to the liquid inlet pipe through the cooler II 39 and the one-way valve III 35; meanwhile, the pressure at the B2 port of the cartridge valve III 26 is transmitted to the joint of the control liquid pipe I and the connecting pipe I through the shuttle valve 29 and the check valve III 35, and then transmitted to the liquid control port of the two-position three-way reversing valve 42 through the control liquid pipe I and the control liquid pipe III to be reversed, the inlet A4 and the outlet B4 of the cartridge valve I21 are communicated, the motor controller II 20 receives signals from the ECU, the small oil pump 18 is controlled to draw cooling liquid from the liquid storage tank through the motor II 19, the cooling liquid is discharged from the outlet of the small oil pump 18 through the filter II 17 to flow to the cartridge valve I21, and the cooling liquid flows to the cooling liquid pipe 4 for liquid inlet through the check valve I22, the cartridge valve II 24 and the check valve II 34 to supplement the cooling liquid. In the process, the electromagnetic directional valve 31 is not electrified, and the cartridge valve II 30 plays a role in protecting a circuit.
Claims (9)
1. A cold source acquisition system for welding is characterized in that: comprises a cold source device for welding and a cooling liquid hydraulic control system;
the cold source device for welding comprises a shell, wherein the shell is a cylindrical structure with end covers at two ends in a sealing mode, a plurality of shielding gas channels are arranged in the shell, and the shielding gas channels are arranged along the axis of the shell; the side wall of the shell and the protective gas channel enclose a cooling liquid channel; the end cover is provided with an air pipe and a cooling liquid pipe; the air pipe is respectively communicated with the plurality of protective air channels through a plurality of branch air pipes; the cooling liquid pipe is communicated with the cooling liquid channel; the gas pipe for gas outlet and the cooling liquid pipe for liquid outlet are respectively provided with a temperature sensor;
the hydraulic control system of the cooling liquid comprises a hydraulic device and an electronic control unit, wherein the hydraulic device comprises a liquid storage tank, a large oil pump, a motor I, a cartridge valve II, a cartridge valve III, a cartridge valve IV, a throttle valve I, a throttle valve III and an electromagnetic directional valve; a rotating shaft of the large oil pump is connected with an output shaft of the motor I; the inlet of a large oil pump is connected with the liquid storage tank through a liquid inlet pipe, the outlet of the large oil pump is connected with the inlet of a cartridge valve II through a liquid outlet pipe I, the outlet of the cartridge valve II is connected with a cooling liquid pipe for liquid inlet of a cold source device for welding through a liquid outlet pipe II, the cooling liquid pipe for liquid outlet of the cold source device for welding is connected with the inlet of a cartridge valve IV through a liquid return pipe I, the outlet of the cartridge valve IV is connected back to the liquid storage tank through a liquid return pipe II, and a cooler I is arranged on the liquid return pipe II; the liquid return pipe I is connected with the liquid outlet pipe II through a connecting pipe I, the connecting pipe I is provided with a cartridge valve III, a cooler II and a one-way valve III, and the cartridge valve III and the cooler II are positioned between the one-way valve III and the liquid return pipe I; a control port of the cartridge valve II is connected with the liquid outlet pipe I through a control liquid pipe II; a control port of the cartridge valve III is connected with a liquid outlet of a two-position three-way electromagnetic valve, a liquid return port of the two-position three-way electromagnetic valve is connected with a liquid storage tank, and a liquid inlet of the two-position three-way electromagnetic valve is connected with a liquid outlet of the shuttle valve; the connecting pipe I is connected with a liquid inlet of the shuttle valve through a connecting pipe III, and a connecting outlet of the connecting pipe I and the connecting pipe III is positioned between the cooler II and the cartridge valve III; the liquid return pipe I is connected with the other liquid inlet of the shuttle valve; a control port of the cartridge valve IV is connected with a connecting pipe I through a control liquid pipe I, the joint of the control liquid pipe I and the connecting pipe I is positioned between a one-way valve III and a liquid outlet pipe II, and a throttle valve I is arranged on the control liquid pipe I; the control liquid pipe I is respectively connected with an inlet of an overflow valve III and an inlet of the electromagnetic directional valve, and an outlet of the overflow valve III and an outlet of the electromagnetic directional valve are connected back to the liquid storage tank; the electronic control unit is respectively connected with the motor controller I, a control port of the electromagnetic reversing valve, a control port of the two-position three-way electromagnetic valve and the temperature sensor, and the output end of the motor controller I is connected with the motor I.
2. The welding cold source acquisition system of claim 1, wherein: the plurality of protective gas channels are arranged on the inner side wall of the shell and are uniformly arranged along the circumferential direction; and a plurality of guide impellers are respectively arranged in each shielding gas channel.
3. The welding cold source acquisition system of claim 2, wherein: the guide vane wheel near the air outlet end is reversely installed in the plurality of guide vane wheels in the protective air channel, and the rest guide vane wheels are forwardly installed.
4. The welding cold source acquisition system of claim 1, wherein: be equipped with a plurality of heat shields in the casing lateral wall, the heat shield is the arc wall, and a plurality of heat shields are evenly arranged along the circumferencial direction, and the heat shield intussuseption is filled with thermal insulation material.
5. The welding cold source acquisition system of claim 1, wherein: the section of the branch pipe is rectangular, and the section of the cooling liquid pipe is circular; the section of the air pipe is circular, rectangular or triangular; the cross-sectional shape of the shielding gas channel is circular, rectangular or triangular.
6. The welding cold source acquisition system of claim 1, wherein: the cooling liquid introduced into the cooling liquid pipe adopts liquid nitrogen.
7. The welding cold source acquisition system of claim 1, wherein: the hydraulic device also comprises a motor II and a small oil pump; a rotating shaft of the small oil pump is connected with an output shaft of a motor II, and the motor II is connected with an electronic control unit through a motor controller II; the inlet of the small oil pump is connected with the liquid storage tank through a pipeline, and the outlet of the small oil pump is connected with the connecting pipe II through a liquid outlet pipe III; an overflow valve IV, a cartridge valve I and a one-way valve I are arranged on the connecting pipe II, and the outlet of the overflow valve IV is connected back to the liquid storage tank; a control port of the cartridge valve I is connected with a liquid outlet of a two-position three-way reversing valve; a liquid inlet of the two-position three-way reversing valve is connected with a connecting pipe II, and the connection is positioned between the cartridge valve I and the one-way valve I; the control port of the two-position three-way reversing valve is connected with the control liquid pipe I through the control liquid pipe III, and the control liquid pipe III is provided with a throttle valve.
8. The welding cold source acquisition system of claim 7, wherein: a one-way valve II is arranged on the liquid outlet pipe II; the joint of the connecting pipe I and the liquid outlet pipe II is positioned between the one-way valve II and the cold source device for welding.
9. The welding cold source acquisition system of claim 7, wherein: the liquid outlet pipe I is connected with an inlet of the overflow valve I through a branch pipe, and an outlet of the overflow valve I is connected back to the liquid storage tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110636210.XA CN113340039B (en) | 2021-06-08 | 2021-06-08 | Cold source acquisition system for welding |
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| CN202110636210.XA CN113340039B (en) | 2021-06-08 | 2021-06-08 | Cold source acquisition system for welding |
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| CN113340039B CN113340039B (en) | 2022-04-22 |
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| CN107605869A (en) * | 2017-09-21 | 2018-01-19 | 太原科技大学 | A kind of oil cylinder cools down hydraulic circuit |
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2021
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| US5902497A (en) * | 1994-10-18 | 1999-05-11 | Thyssen Industrie Ag | Process and device for cooling the area of a weld during laser welding |
| US20050217260A1 (en) * | 2004-03-23 | 2005-10-06 | Desjardins Yvon C | Electro-hydraulic fan drive cooling and steering system for vehicle |
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| CN113340039B (en) | 2022-04-22 |
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