CN215352923U - Tail gas collection device is welded in carbon dioxide gas protection - Google Patents
Tail gas collection device is welded in carbon dioxide gas protection Download PDFInfo
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- CN215352923U CN215352923U CN202121743032.2U CN202121743032U CN215352923U CN 215352923 U CN215352923 U CN 215352923U CN 202121743032 U CN202121743032 U CN 202121743032U CN 215352923 U CN215352923 U CN 215352923U
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- tail gas
- carbon dioxide
- shaped seat
- absorber
- collecting cover
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model discloses a welding tail gas collecting device for carbon dioxide gas protection, which comprises a welding tail gas collecting mechanism, a filter box and a solution absorbing mechanism, wherein the welding tail gas collecting mechanism comprises an adjusting support and a collecting cover component, the adjusting support comprises a U-shaped seat and a screw rod adjusting component, the screw rod adjusting component is connected with the collecting cover component through a connecting block, a fan is arranged between the filter box and the solution absorbing mechanism, and the solution absorbing mechanism comprises a base, an absorber and a sodium hydroxide solution spraying component. The utility model has simple structure, realizes the capture, transportation and absorption of welding tail gas in the carbon dioxide gas shielded welding process, and reduces the discharge amount of carbon dioxide, thereby reducing the environmental pollution.
Description
Technical Field
The utility model belongs to the technical field of carbon dioxide tail gas collection, and particularly relates to a carbon dioxide gas shielded welding tail gas collection device.
Background
Carbon dioxide arc welding is a welding method in which carbon dioxide is used as a shielding gas. The carbon dioxide gas shielded welding has wide application range, high welding efficiency, low energy consumption and low price of the used shielding gas carbon dioxide; the weld joint is well formed in short circuit transition; the welding line without internal defect can be obtained by adding the flux-cored wire containing the deoxidizer. Therefore, this welding method has become one of the most important welding methods for ferrous materials.
As carbon dioxide is an essential protective gas in the welding process, the carbon dioxide does not participate in the reaction in the welding process and only serves as the protective gas, the properties are not changed before and after welding, the quality is not lost, but the concentration of the carbon dioxide mixed with air is reduced, and the temperature is increased. In addition, the gas flow is large when outdoor welding and overhead welding are carried out, and the emission amount of carbon dioxide is about 2160L to 9000L. Under normal conditions (20 ℃ C. and 101 kPa) the density of the carbon dioxide is 1.964g/L, which is equivalent to about 4.24 Kg-17.6 Kg of carbon dioxide consumed by a welder per day. In large-scale manufacturing and processing workshops, the gas consumption of carbon dioxide gas is large, the collection and treatment of carbon dioxide cannot be well treated, and a large amount of carbon dioxide gas is directly discharged into the atmosphere, so that the burden on environmental protection is increased.
Therefore, a carbon dioxide gas shielded welding tail gas collecting device with simple structure and reasonable design is needed at present, so that welding tail gas in the carbon dioxide gas shielded welding process is gathered, conveyed and absorbed, the carbon dioxide emission is reduced, and the environmental pollution is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a tail gas collecting device for carbon dioxide arc welding, which has the advantages of simple structure and reasonable design, realizes the capture, transportation and absorption of welding tail gas in the welding process of carbon dioxide arc welding, reduces the discharge amount of carbon dioxide, reduces the environmental pollution and has strong practicability.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a carbon dioxide gas shielded welding tail gas collection device which characterized in that: the welding tail gas collecting device comprises a welding tail gas collecting mechanism arranged at the upper part of a welding station, a filter box connected with the welding tail gas collecting mechanism, and a solution absorbing mechanism connected with the filter box;
the welding tail gas collecting mechanism comprises an adjusting support and a collecting cover component which is arranged on the adjusting support and can slide up and down along the adjusting support, the adjusting support comprises a U-shaped seat and a screw rod adjusting component arranged in the U-shaped seat, the screw rod adjusting component is connected with the collecting cover component through a connecting block, and a fan is arranged between the filter box and the solution absorbing mechanism;
the solution absorption mechanism comprises a base, an absorber arranged on the base and a sodium hydroxide solution spraying part connected with the absorber, and the fan is positioned between the absorber and the filter box.
The tail gas collection device is welded in carbon dioxide gas protection, its characterized in that: the bottom of the U-shaped seat is provided with an L-shaped reinforcing plate and a frame base, the L-shaped reinforcing plate comprises a bottom plate arranged on the frame base and a vertical plate vertically arranged with the bottom plate, the U-shaped seat is arranged on the bottom plate and is attached to the vertical plate, and the top of the U-shaped seat is higher than the top of the vertical plate;
the lead screw adjusting part comprises a motor, a vertical setting and a screw, wherein the motor is arranged on the bottom plate and is positioned in a U-shaped seat, the lead screw is arranged in the U-shaped seat and is in transmission connection with an output shaft of the motor, the screw is sleeved on the lead screw, the connecting block is sleeved on the lead screw and is fixedly connected with the screw, and the connecting block is connected with the collecting cover part.
The tail gas collection device is welded in carbon dioxide gas protection, its characterized in that: the collecting cover part comprises a mounting flat plate, a collecting cover arranged at the bottom of the mounting flat plate and a top air blower arranged at the top of the mounting flat plate, wherein an air suction port is formed in the mounting flat plate and is communicated with a cavity in the collecting cover, the collecting cover is in a frustum shape, the cross section of the bottom of the collecting cover is larger than that of the top of the collecting cover, and an outlet of the top air blower is connected with an inlet of the filter box;
the one end that the installation flat board is close to the U-shaped seat is provided with the lug, the lug forms the step face with the dull and stereotyped junction of installation, the lug stretches into the U-shaped seat is connected with the connecting block, the lateral wall of lug with the laminating of the recess lateral wall of U-shaped seat, the step face with the side laminating of U-shaped seat, the side of U-shaped seat is provided with the spout that two symmetries were laid, be provided with the slider of cooperation spout on the step face.
The tail gas collection device is welded in carbon dioxide gas protection, its characterized in that: the utility model discloses an absorber, including top fan, rose box, first conveyer pipe, second conveyer pipe, third conveyer pipe, the export of top fan with be provided with first conveyer pipe between the entry of rose box, be provided with the second conveyer pipe between the export of rose box and the entry of fan, the export of fan with be provided with the third conveyer pipe between the lower part entry of absorber, the top export of absorber is provided with the evacuation pipe.
The tail gas collection device is welded in carbon dioxide gas protection, its characterized in that: the rose box includes the box and sets up multichannel filter screen in the box, multichannel the filter screen is micron netted dust filter, G4 filter screen, activated carbon fiber filter screen respectively by entry to export.
The tail gas collection device is welded in carbon dioxide gas protection, its characterized in that: the sodium hydroxide solution sprays the part including solution tank, feed pump and the feed pipe that connects gradually to and be connected with the feed pipe and stretch into spray tube and a plurality of settings on absorber upper portion and be in spray head on the spray tube, solution tank splendid attire sodium hydroxide solution.
The tail gas collection device is welded in carbon dioxide gas protection, its characterized in that: and a cooling coil is arranged in the solution tank, and a water inlet and a water return port of the cooling coil are both positioned outside the solution tank.
The tail gas collection device is welded in carbon dioxide gas protection, its characterized in that: the absorber is provided with a liquid discharge pipe, the liquid discharge pipe is connected with the liquid storage tank, and the upper part of the liquid storage tank is provided with a drain pipe.
Compared with the prior art, the utility model has the following advantages:
1. simple structure, reasonable in design and installation are laid portably, and the practicality is strong.
2. The utility model is provided with the adjusting bracket and the collecting cover component, and provides a mounting base for the collecting cover component through the adjusting bracket, so that the collecting cover component is positioned at the upper part of the welding station, and the tail gas collecting effect of the carbon dioxide arc welding is improved.
3. The adjusting bracket comprises a U-shaped seat and a screw rod adjusting part, and the screw rod adjusting part is connected with the collecting cover part through a connecting block, so that the screw rod adjusting part drives the collecting cover part to move along the height direction of the U-shaped seat through the connecting block, the mounting height of the collecting cover part is adjusted, and the application range is widened.
4. The filter box is arranged to filter the collected welding tail gas, so that dust particles, PM2.5 particles and peculiar smell in the welding tail gas can be effectively filtered, the harm of the tail gas is reduced, and the harm of the tail gas to a human body is avoided.
5. The utility model is provided with the absorber and the sodium hydroxide solution spraying part, so that the welding tail gas conveyed by the fan is mixed with the sodium hydroxide solution sprayed by the sodium hydroxide solution spraying part when passing through the absorber from bottom to top, thereby leading the sodium hydroxide solution to absorb the carbon dioxide of the welding tail gas and reducing the residual carbon dioxide gas.
In conclusion, the utility model has the advantages of simple structure and reasonable design, realizes capture, transportation and absorption of welding tail gas in the carbon dioxide gas shielded welding process, reduces the discharge amount of carbon dioxide, further reduces environmental pollution and has strong practicability.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural diagram of a welding tail gas collecting mechanism according to the present invention.
FIG. 3 is a schematic view showing the structure of the solution-absorbing mechanism of the present invention.
FIG. 4 is a schematic view of the structure of the U-shaped seat and the mounting plate of the present invention.
Description of reference numerals:
1-a solution absorbing mechanism; 10-cooling coil pipe; 11-solution tank;
12-a liquid supply pump; 13-a supply tube; 14-a liquid spraying pipe;
15-a sprinkler head; 16-an absorber; 17-emptying pipe;
18-mounting table; 19-a base; 3, adjusting the bracket;
31-a motor; 32-a screw rod; 33-a nut;
34, connecting blocks; 35-a top plate; 36-a pedestal bearing;
37-a U-shaped seat; 37-1-chute; 38-L-shaped reinforcing plates;
38-1-vertical panel; 38-2-bottom plate; 39-frame base;
4-trapping cover means; 40, mounting a flat plate; 40-1-bumps;
40-2-slide block; 41-a collecting cover; 42-top fan;
43 — a first delivery pipe; 44-an air extraction opening; 5, a filter box;
51, a fan; 53-third delivery pipe; 54 — a second delivery tube;
6, a liquid storage tank; 61-drain pipe; 62, a drain pipe;
7-welding station; 8, welding gun.
Detailed Description
As shown in fig. 1 to 4, the present invention includes a welding tail gas collecting mechanism disposed at an upper portion of a welding station 7, a filter tank 5 connected to the welding tail gas collecting mechanism, and a solution absorbing mechanism 1 connected to the filter tank 5;
the welding tail gas collecting mechanism comprises an adjusting support 3 and a collecting cover component 4 which is arranged on the adjusting support 3 and can slide up and down along the adjusting support 3, the adjusting support 3 comprises a U-shaped seat 37 and a screw rod adjusting component arranged in the U-shaped seat 37, the screw rod adjusting component is connected with the collecting cover component 4 through a connecting block 34, and a fan 51 is arranged between the filter box 5 and the solution absorbing mechanism 1;
the solution absorption mechanism 1 comprises a base 19, an absorber 16 arranged on the base 19 and a sodium hydroxide solution spraying part connected with the absorber 16, wherein the fan 51 is positioned between the absorber 16 and the filter box 5.
In the embodiment, as shown in fig. 2, an L-shaped reinforcing plate 38 and a frame base 39 are arranged at the bottom of the U-shaped seat 37, the L-shaped reinforcing plate 38 comprises a bottom plate 38-2 arranged on the frame base 39 and a vertical plate 38-1 arranged perpendicular to the bottom plate 38-2, the U-shaped seat 37 is mounted on the bottom plate 38-2 and is attached to the vertical plate 38-1, and the top of the U-shaped seat 37 is higher than the top of the vertical plate 38-1;
the screw rod adjusting part comprises a motor 31 arranged on the bottom plate 38-2 and positioned in a U-shaped seat 37, a screw rod 32 vertically arranged in the U-shaped seat 37 and in transmission connection with an output shaft of the motor 31, and a nut 33 sleeved on the screw rod 32, wherein a connecting block 34 is sleeved on the screw rod 32 and fixedly connected with the nut 33, and the connecting block 34 is connected with the collecting cover part.
As shown in fig. 4, in this embodiment, the flapping cover component includes a mounting plate 40, a collecting cover 41 disposed at the bottom of the mounting plate 40, and a top fan 42 disposed at the top of the mounting plate 40, an air suction port 44 is disposed on the mounting plate 40, the air suction port 44 is communicated with an internal cavity of the collecting cover 41, the collecting cover 41 is in a frustum shape, the bottom cross section of the collecting cover 41 is larger than the top cross section of the collecting cover 41, and an outlet of the top fan 42 is connected to an inlet of the filter box 5;
the mounting structure is characterized in that a convex block 40-1 is arranged at one end, close to the U-shaped seat 37, of the mounting flat plate 40, a step surface is formed at the joint of the convex block 40-1 and the mounting flat plate 40, the convex block 40-1 extends into the U-shaped seat 37 to be connected with the connecting block 34, the outer side wall of the convex block 40-1 is attached to the side wall of the groove of the U-shaped seat 37, the step surface is attached to the side surface of the U-shaped seat 37, two sliding grooves 37-1 which are symmetrically distributed are formed in the side surface of the U-shaped seat 37, and a sliding block 40-2 matched with the sliding grooves 37-1 is arranged on the step surface.
In this embodiment, a first delivery pipe 43 is disposed between the outlet of the top air blower 42 and the inlet of the filter box 5, a second delivery pipe 54 is disposed between the outlet of the filter box 5 and the inlet of the air blower 51, a third delivery pipe 53 is disposed between the outlet of the air blower 51 and the lower inlet of the absorber 16, and the top outlet of the absorber 16 is provided with the evacuation pipe 17.
In this embodiment, rose box 5 includes the box and sets up multichannel filter screen in the box, the multichannel the filter screen is micron netted dust filtration net, G4 filter screen, activated carbon fiber filter screen respectively by entry to export.
As shown in fig. 3, in the present embodiment, the sodium hydroxide solution spraying part includes a solution tank 11, a liquid supply pump 12 and a liquid supply pipe 13 connected in sequence, and a liquid spray pipe 14 connected to the liquid supply pipe 13 and extending into an upper portion of an absorber 16, and a plurality of spraying heads 15 disposed on the liquid spray pipe 14, wherein the solution tank 11 contains a sodium hydroxide solution.
In this embodiment, a cooling coil 10 is disposed in the solution tank 11, and a water inlet and a water return port of the cooling coil 10 are both located outside the solution tank 11.
In this embodiment, the absorber 16 is provided with a drain pipe 61, the drain pipe 61 is connected with the liquid storage tank 6, and the upper part of the liquid storage tank 6 is provided with a drain pipe 62.
In this embodiment, the top fan 42 and the fan 51 are provided to suck and convey the exhaust gas.
In this embodiment, a welding gun 8 is disposed at the welding station 7.
In this embodiment, a top plate 35 is disposed on the top of the U-shaped seat 37, a bearing 36 with a seat is disposed on the bottom of the top plate 35, and the top end of the screw rod 32 is rotatably mounted on the bottom of the top plate 35 through the bearing 36 with a seat.
In this embodiment, the base 19 is provided with a mounting table 18 on which the liquid feed pump 12 is mounted, and the solution tank 11 is positioned on the base 19.
In this embodiment, the lower end of the screw 32 is in transmission connection with the output shaft of the motor 31 through a coupling.
In this embodiment, the motor 31 is operated to drive the screw rod 32 to rotate through the coupler, the screw rod 32 rotates to enable the screw nut 33 to slide along the height direction of the screw rod 32, the connecting block 34 is synchronously driven to slide along the height direction of the screw rod 32 in the process that the screw nut 33 slides along the height direction of the screw rod 32, and then the collecting cover 41 is driven to lift through the mounting flat plate 40 until the mounting height of the collecting cover component is adjusted to meet the collecting requirement.
In the embodiment, the micron mesh-shaped dust filter screen can effectively filter dust particles, the G4 filter screen can effectively remove PM2.5 particles in gas, and the filtering efficiency of the G4 filter screen on suspended particulate matters with the particle size larger than 0.5 mu m is more than or equal to 70%; the activated carbon fiber filter screen can effectively adsorb organic matters such as formaldehyde, benzene and VOC in gas, and simultaneously remove various peculiar smells.
In this embodiment, when the carbon dioxide in the welding tail gas is dissolved in the NaOH solution, the carbon dioxide in the tail gas first reacts with water to form carbonic acid H2CO3，H2CO3Then reacting with NaOH to generate Na2CO3And H2O; in consideration of unstable carbonic acid and easy decomposition of heat, a cooling coil 10 is provided in a solution tank 11 containing a NaOH solution, and the solution is cooledCirculating cooling water and NaOH solution in the solution tank 11 are introduced into the coil 10 for heat exchange, so that the temperature of the sprayed NaOH solution is reduced, and the temperature of the NaOH solution is ensured to be below 25 ℃.
In this embodiment, set up 11 splendid attire sodium hydroxide solutions of solution tank, realize welding tail gas's carbon dioxide's absorption because sodium hydroxide's solubility is big, and the absorbing capacity is strong.
In this embodiment, the liquid spray pipe 14 is provided at the upper portion inside the absorber 16 such that the spray head 15 is directed downward, thereby facilitating the movement of the sodium hydroxide solution sprayed by the spray head 15 in the opposite direction to the flow of the carbon dioxide in the absorber 16, and improving the absorption effect.
In this embodiment, the drain pipe 61 is provided to discharge the solution reacted by the absorber 16 into the liquid storage tank 6 for storage, and the reacted solution enters the liquid storage tank 6 for precipitation and then is discharged to the drain pipe through the drain pipe 62, because the reacted solution is Na2CO3The solution has small influence on the environment.
In conclusion, the utility model has the advantages of simple structure and reasonable design, realizes capture, transportation and absorption of welding tail gas in the carbon dioxide gas shielded welding process, reduces the discharge amount of carbon dioxide, further reduces environmental pollution and has strong practicability.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a carbon dioxide gas shielded welding tail gas collection device which characterized in that: comprises a welding tail gas collecting mechanism arranged at the upper part of a welding station (7), a filter box (5) connected with the welding tail gas collecting mechanism, and a solution absorbing mechanism (1) connected with the filter box (5);
the welding tail gas collecting mechanism comprises an adjusting support (3) and a collecting cover component (4) which is arranged on the adjusting support (3) and can slide up and down along the adjusting support (3), the adjusting support (3) comprises a U-shaped seat (37) and a screw rod adjusting component arranged in the U-shaped seat (37), the screw rod adjusting component is connected with the collecting cover component (4) through a connecting block (34), and a fan (51) is arranged between the filter box (5) and the solution absorbing mechanism (1);
the solution absorption mechanism (1) comprises a base (19), an absorber (16) arranged on the base (19) and a sodium hydroxide solution spraying part connected with the absorber (16), wherein the fan (51) is positioned between the absorber (16) and the filter box (5).
2. The carbon dioxide gas shielded welding tail gas collection device according to claim 1, wherein: the bottom of the U-shaped seat (37) is provided with an L-shaped reinforcing plate (38) and a frame base (39), the L-shaped reinforcing plate (38) comprises a bottom plate (38-2) arranged on the frame base (39) and a vertical plate (38-1) vertically arranged with the bottom plate (38-2), the U-shaped seat (37) is installed on the bottom plate (38-2) and attached to the vertical plate (38-1), and the top of the U-shaped seat (37) is higher than that of the vertical plate (38-1);
the screw rod adjusting part comprises a motor (31) arranged on the bottom plate (38-2) and located in a U-shaped seat (37), a screw rod (32) vertically arranged in the U-shaped seat (37) and in transmission connection with an output shaft of the motor (31), and a nut (33) sleeved on the screw rod (32), wherein a connecting block (34) is sleeved on the screw rod (32) and fixedly connected with the nut (33), and the connecting block (34) is connected with the collecting cover part.
3. The carbon dioxide gas shielded welding tail gas collection device according to claim 1, wherein: the collecting cover part comprises a mounting flat plate (40), a collecting cover (41) arranged at the bottom of the mounting flat plate (40) and a top air blower (42) arranged at the top of the mounting flat plate (40), wherein an air suction port (44) is formed in the mounting flat plate (40), the air suction port (44) is communicated with a cavity in the collecting cover (41), the collecting cover (41) is frustum-shaped, the cross section of the bottom of the collecting cover (41) is larger than that of the top of the collecting cover (41), and an outlet of the top air blower (42) is connected with an inlet of the filter box (5);
the mounting structure is characterized in that a convex block (40-1) is arranged at one end, close to the U-shaped seat (37), of the mounting flat plate (40), a step surface is formed at the joint of the convex block (40-1) and the mounting flat plate (40), the convex block (40-1) extends into the U-shaped seat (37) to be connected with the connecting block (34), the outer side wall of the convex block (40-1) is attached to the side wall of the groove of the U-shaped seat (37), the step surface is attached to the side surface of the U-shaped seat (37), two sliding grooves (37-1) which are symmetrically distributed are formed in the side surface of the U-shaped seat (37), and a sliding block (40-2) matched with the sliding grooves (37-1) is arranged on the step surface.
4. A carbon dioxide gas shielded welding tail gas collection device in accordance with claim 3, wherein: the utility model discloses an absorber (16) of the air conditioner, including top fan (42), filter box (5), fan (51), third conveyer pipe (53), the export of top fan (42) with be provided with first conveyer pipe (43) between the entry of filter box (5), be provided with second conveyer pipe (54) between the export of filter box (5) and the entry of fan (51), the export of fan (51) with be provided with third conveyer pipe (53) between the lower part entry of absorber (16), the top export of absorber (16) is provided with evacuation pipe (17).
5. The carbon dioxide gas shielded welding tail gas collection device according to claim 1, wherein: filter box (5) include the box and set up multichannel filter screen in the box, the multichannel the filter screen is micron mesh-like dust filtration net, G4 filter screen, activated carbon fiber filter screen respectively by entry to export.
6. The carbon dioxide gas shielded welding tail gas collection device according to claim 1, wherein: the sodium hydroxide solution spraying part comprises a solution tank (11), a liquid supply pump (12) and a liquid supply pipe (13) which are sequentially connected, a liquid spray pipe (14) which is connected with the liquid supply pipe (13) and extends into the upper part of an absorber (16), and a plurality of spraying heads (15) which are arranged on the liquid spray pipe (14), wherein the solution tank (11) is filled with a sodium hydroxide solution.
7. The carbon dioxide gas shielded welding tail gas collection device according to claim 6, wherein: a cooling coil (10) is arranged in the solution tank (11), and a water inlet and a water return port of the cooling coil (10) are both positioned outside the solution tank (11).
8. The carbon dioxide gas shielded welding tail gas collection device according to claim 1, wherein: a liquid discharge pipe (61) is arranged on the absorber (16), the liquid discharge pipe (61) is connected with the liquid storage tank (6), and a drain pipe (62) is arranged at the upper part of the liquid storage tank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121743032.2U CN215352923U (en) | 2021-07-28 | 2021-07-28 | Tail gas collection device is welded in carbon dioxide gas protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121743032.2U CN215352923U (en) | 2021-07-28 | 2021-07-28 | Tail gas collection device is welded in carbon dioxide gas protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215352923U true CN215352923U (en) | 2021-12-31 |
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ID=79612666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121743032.2U Active CN215352923U (en) | 2021-07-28 | 2021-07-28 | Tail gas collection device is welded in carbon dioxide gas protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215352923U (en) |
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2021
- 2021-07-28 CN CN202121743032.2U patent/CN215352923U/en active Active
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Address after: No.158, north section of Zhuque street, Beilin District, Xi'an City, Shaanxi Province, 710068 Patentee after: SCEGC EQUIPMENT INSTALLATION GROUP CO.,LTD. Address before: 710068 No. 111, Hanguang North Road, Xi'an City, Shaanxi Province Patentee before: SCEGC EQUIPMENT INSTALLATION GROUP CO.,LTD. |
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