CN116510427A - Smoking device for metal welding - Google Patents
Smoking device for metal welding Download PDFInfo
- Publication number
- CN116510427A CN116510427A CN202310587844.XA CN202310587844A CN116510427A CN 116510427 A CN116510427 A CN 116510427A CN 202310587844 A CN202310587844 A CN 202310587844A CN 116510427 A CN116510427 A CN 116510427A
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- China
- Prior art keywords
- filter screen
- cylinder
- air
- recovery box
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000004021 metal welding Methods 0.000 title claims abstract description 22
- 230000000391 smoking effect Effects 0.000 title claims abstract description 21
- 238000011084 recovery Methods 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 230000000903 blocking effect Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000000670 limiting effect Effects 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 8
- 239000000779 smoke Substances 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 15
- 238000005520 cutting process Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 208000019693 Lung disease Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/86—Cleaning the filter surface by interrupting suction so that the filter cake falls by gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of environmental protection equipment, in particular to a smoking device for metal welding, which comprises a recovery box and a fan housing, wherein an air guide pipe is arranged between the recovery box and the fan housing, one end of the air guide pipe is connected with the fan housing, the other end of the air guide pipe is connected with the recovery box, one end of the recovery box is provided with an air inlet, the other end of the recovery box is provided with an air outlet, the air inlet is communicated with the interior of the air guide pipe, an induced draft fan is arranged on the recovery box, a partition plate is arranged between the air inlet and the air outlet and divides the interior of the recovery box into a first air chamber and a second air chamber, a cylinder is fixed on the partition plate, the cylinder penetrates through the partition plate and is in sealing connection with the partition plate, one end close to the cylinder, and the other end is provided with an air outlet; the bottom of drum is provided with fresh air inlet and first filter screen, and first filter screen is located first wind is indoor and covers the fresh air inlet, is provided with the inlet tube on the box, extends to in the drum and installs the shower nozzle, and the shower nozzle is located the top of first filter screen. The device makes the contact of the sprayed tiny liquid drops and the filtered smoke more sufficient.
Description
Technical Field
The invention relates to the technical field of environmental protection equipment, in particular to a smoking device for metal welding.
Background
In the metal welding process, a large amount of smoke dust can be produced, and the smoke dust is accumulated after being inhaled into a human body and can cause lung diseases of people, therefore, people research a smoking device, the smoking device sucks gas produced by metal welding into a cover body or a box body, the gas is filtered through a vertically arranged filter screen, then water is sprayed through a vertically arranged spraying device or some harmful gas in the smoke dust is adsorbed by neutralizing liquid, and the structure has the following technical problems in the use process:
1. in the process of downward spraying liquid, the water drops sprayed by the spray holes of the spray head obliquely downward form an un-humidified area above the movement track of the water drops, and the horizontally moving air flow cannot fully contact with the liquid or the contact part when passing through the area;
2. the filter screen is easy to block after being used for a period of time, and people are required to clean the filter screen frequently, so that the workload of staff is increased.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides a smoking device for metal welding, which solves at least one of the above problems.
In order to achieve the above object, the present invention provides the following technical solutions:
the smoke sucking device for metal welding comprises a recovery box and a fan cover, wherein an air guiding pipe is arranged between the recovery box and the fan cover, one end of the air guiding pipe is connected with the fan cover, the other end of the air guiding pipe is connected with the recovery box, an air inlet is formed in one end of the recovery box, an air outlet is formed in the other end of the recovery box, the air inlet is communicated with the inside of the air guiding pipe, an induced draft fan is arranged at a position, corresponding to the air outlet, on the recovery box, a partition plate is arranged between the air inlet and the air outlet, the recovery box is divided into a first air chamber and a second air chamber, the first air chamber is close to the air inlet relative to the second air chamber, a cylinder is fixed on the partition plate and penetrates through the partition plate to be in sealing connection with the partition plate, one end, close to the air inlet, of the cylinder is closed, and the other end is provided with an air outlet hole; the bottom of drum is provided with fresh air inlet and first filter screen, first filter screen is located in the first wind chamber and cover the fresh air inlet, be provided with the inlet tube on the box, the one end of metal pipe is located outside the box, the other end extends to in the drum and install the shower nozzle, the shower nozzle is located the top of first filter screen.
Optionally, a water baffle is arranged at the bottom in the cylinder, and the water baffle is positioned between the first filter screen and the air outlet.
Optionally, the bottom of collection box corresponds the position of first filter screen is provided with the water catch bowl, the bottom of water catch bowl is provided with the blow off pipe.
Optionally, a drain valve is arranged on the drain pipe, and a water inlet valve is arranged on the water inlet pipe.
Optionally, a vent hole is formed in the partition board, and the cylinder is connected with the partition board in a sliding manner; a second filter screen is arranged on the cylinder at a position corresponding to the air outlet; the diameter of one side of the first filter screen, which is close to the vent hole, is smaller than that of the other side, so that the first filter screen is inclined relative to the cylinder; the first filter screen can move towards the second air chamber under the suction effect of the induced draft fan in a blocking state, and in the moving process, the first filter screen is contacted with the inner side of the vent hole, and the inclination angle is gradually reduced under the limiting effect of the vent hole.
Optionally, the minimum outer diameter of the first filter screen is the same as the inner diameter of the vent hole; the cylinder is integrally provided with a blocking ring, at least two baffles are circumferentially arranged in the second cavity, a distance is reserved between every two adjacent baffles, a spring is arranged between each baffle and each blocking ring, the spring abuts against the corresponding blocking ring on the corresponding partition plate, a sealing sleeve is arranged on each blocking ring, one end of each sealing sleeve is in sealing connection with the corresponding blocking ring, and the other end of each sealing sleeve is in sealing connection with the corresponding partition plate.
Optionally, the sealing sleeve is a rubber sleeve, a corrugated pipe or a cloth sleeve.
Optionally, one end of the first filter screen, which is close to the second air chamber, is connected with the cylinder, the other end and two sides of the first filter screen extend into the cylinder, and the position corresponding to the air inlet is in contact with the inner side of the air inlet; the two sides of the first filter screen are connected with an arc-shaped spring piece, the two ends of the arc-shaped spring piece are arranged corresponding to the two ends of the first filter screen and are connected into a whole, and the connection position is positioned at one end of the first filter screen far away from the second air chamber; the middle part of the arc-shaped spring piece is propped against the cylinder or is connected with the cylinder.
Optionally, a blocking block is arranged at one end of the first filter screen far away from the second air chamber.
When the smoking device for metal welding provided by the invention is used, the induced draft fan is started, dust generated in the metal cutting process enters the first air chamber through the air inlet after passing through the fan housing and the induced draft pipe along with air flow, the air flow enters the cylinder through the first filter screen and is discharged to the second air chamber through the first filter screen, and finally is discharged through the air outlet; in addition, after the liquid drops fall to the first filter screen position, attached smoke dust particles can be taken away under the action of gravity and finally fall into the dust collection groove, so that the first filter screen is effectively prevented from being blocked, the blocking time of the filter screen is delayed, and the workload of workers is reduced. After the use is finished, the blow-down valve can be opened to blow down.
Drawings
Fig. 1 is a schematic view showing the structure of a smoking device for metal welding in example 1;
FIG. 2 is a schematic view showing the internal structure of the cylinder of FIG. 1;
FIG. 3 shows a right side view of the cylinder of FIG. 1;
fig. 4 is a schematic structural view showing a smoking device for metal welding in example 2;
FIG. 5 is a schematic view showing the internal structure of the cylinder of FIG. 4;
FIG. 6 shows a right side view of the cylinder of FIG. 4;
the reference numerals in the drawings:
the recycling box 1, the air inlet 1-1, the air outlet 1-2, the first air chamber 1-3, the second air chamber 1-4, the partition plate 2, the induced draft fan 3, the cylinder 4, the air inlet 4-1, the air outlet 5, the first filter screen 6, the baffle 7, the spring 8, the sealing sleeve 9, the fan housing 10, the induced draft pipe 11, the water inlet pipe 12, the spray head 13, the magnet 14, the blocking block 15, the arc-shaped spring piece 16, the water collecting tank 17, the blow-off pipe 18 and the second filter screen 19.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the application provides a smoking device for metal welding, which comprises a recovery box 1 and a fan cover 10, wherein the fan cover can be in a horn mouth or other existing shape, an induced draft tube 11 is arranged between the recovery box and the fan cover, one end of the induced draft tube is connected with the fan cover, the other end of the induced draft tube is connected with the recovery box, one end of the recovery box is provided with an air inlet 1-1, the other end of the recovery box is provided with an air outlet 1-2, the air inlet is communicated with the inside of the induced draft tube, a partition plate 2 is arranged between the air inlet and the air outlet, the recovery box is divided into a first air chamber 1-3 and a second air chamber 1-4 by the partition plate, the first air chamber is arranged close to the air inlet relative to the second air chamber, an induced draft fan 3 is arranged on the recovery box corresponding to the position of the air outlet, a cylinder 4 is fixed on the partition plate, the cylinder penetrates through the partition plate and is connected with the partition plate in a sealing manner, the cylinder is generally directly welded, one end close to the air inlet is closed, and the other end of the cylinder is provided with an air outlet 5; the bottom of drum is provided with fresh air inlet 4-1 and first filter screen 6, first filter screen is located in the first wind chamber and cover the fresh air inlet, be provided with inlet tube 12 on the box, the one end of metal pipe is located outside the box, the other end extends to in the drum and install shower nozzle 13, the shower nozzle is located the top of first filter screen, the bottom of collection tank corresponds the position of first filter screen is provided with water catch bowl 17, the bottom of water catch bowl is provided with blow off pipe 18, be provided with the blowoff valve on the blow off pipe, be provided with the water intaking valve on the inlet tube.
When the smoking device for metal welding is used, the induced draft fan is started and the liquid inlet valve is opened, dust generated in the metal cutting process enters the first air chamber through the air inlet after passing through the fan housing and the air inlet pipe, the air flow enters the cylinder through the first filter screen after being filtered by the first filter screen, is discharged to the second air chamber through the first filter screen, and finally is discharged through the air outlet; in addition, after the liquid drops fall to the first filter screen position, attached smoke dust particles can be taken away under the action of gravity and finally fall into the dust collection groove, so that the first filter screen is effectively prevented from being blocked, the blocking time of the filter screen is delayed, and the workload of workers is reduced. After the use is finished, the blow-down valve can be opened to blow down.
As a preferred embodiment, a water baffle 14 is disposed at the bottom of the cylinder, and the water baffle is located between the first filter screen and the air outlet, so that water droplets sprayed by the spray head are blocked by the water baffle and do not flow to the air outlet.
In embodiment 2, referring to fig. 4 to 6, the structure of the present embodiment is substantially the same as that of embodiment 1, and the main difference is that the first filter screen is disposed, specifically: the air vent is arranged on the partition board, and the cylinder is connected with the partition board in a sliding manner; a second filter screen 19 is arranged on the cylinder at a position corresponding to the air outlet; the diameter of one side of the first filter screen, which is close to the vent hole, is smaller than that of the other side, so that the first filter screen is inclined relative to the cylinder, and in the embodiment, the minimum outer diameter of the second filter screen is the same as the inner diameter of the vent hole; the cylinder is integrally provided with a blocking ring 4-2, at least two baffles 7 are circumferentially arranged in the second cavity, a space is reserved between every two adjacent baffles, a spring 8 is arranged between each baffle and each blocking ring, the spring props the blocking ring against the corresponding baffle, the blocking ring is provided with a sealing sleeve 9, one end of the sealing sleeve is in sealing connection with the corresponding blocking ring, the other end of the sealing sleeve is in sealing connection with the corresponding baffle, and the sealing sleeve can be generally connected by using the existing modes such as bonding, interference fit and the like, wherein the sealing sleeve can be a rubber sleeve, a corrugated pipe or a cloth sleeve; one end of the first filter screen, which is close to the second air chamber, is connected with the cylinder, the other end and two sides of the first filter screen extend into the cylinder, and the position corresponding to the air inlet is contacted with the inner side of the air inlet; the two sides of the first filter screen are connected with an arc-shaped spring piece 16, the two ends of the arc-shaped spring piece are arranged corresponding to the two ends of the first filter screen and are connected into a whole, and the connection position is positioned at one end of the first filter screen far away from the second air chamber; the middle part of the arc-shaped spring piece is propped against the cylinder or is connected with the cylinder.
When the structure is used, once the first filter screen is blocked, the negative pressure of the second air chamber is increased under the action of the induced draft fan, so that the spring is contracted, the cylinder moves towards the direction of the second air chamber, water drops sprayed out of the spray head accumulate in the moving process, the mesh pressure of the first filter screen, especially the lower position, is increased, meanwhile, the first filter screen passes through the vent hole, the inner wall of the vent hole is contacted with the first filter screen, the first filter screen is gradually extruded into a horizontal state from an inclined state, dust attached to the first filter screen is scraped off, and at the moment, the dust is more easily dropped through the inclined filter screen under the action of the thrust of the inner wall of the vent hole in the horizontal direction and the downward pressure of liquid; in the process, the arc-shaped spring piece is extruded and deformed; after the dust adhered to the first filter screen is cleaned, the ventilation performance of the first filter screen is increased, and the spring and the arc-shaped spring piece restore to the original state, so that the first filter screen restores to the original inclined state again; this is repeated. Therefore, the blocking time of the filter screen can be greatly prolonged, the workload of workers is reduced, in the embodiment, the second filter screen prevents dust from entering the round vent through the side edge of the first filter screen and being discharged through the air outlet hole when the first filter screen is blocked and deformed, and of course, the dust enters the round vent through the side edge of the first filter screen and then is intercepted after being sprayed by the spray head and reaches the position of the second filter screen, so that the dust amount of the second filter screen is extremely small, the blocking time of the filter screen is greatly prolonged, and the workload of the workers is reduced.
To ensure that the end of the second filter screen remote from the second plenum is attracted to the second plenum by the wind, the end may also be provided with a blocking block 15.
It should be noted that, in the above embodiment, the arrangement mode of the first filter screen and the internal structure of the cylinder may also use other design modes, so long as the purpose that the first filter screen can move towards the second air chamber under the suction action of the induced draft fan in the blocked state, and in the moving process, the first filter screen contacts with the inner side of the vent hole, and the inclination angle gradually becomes smaller under the restriction action of the vent hole can be achieved.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).
Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The smoking device for metal welding comprises a recovery box (1) and a fan cover (10), wherein an induced air pipe (11) is arranged between the recovery box and the fan cover, one end of the induced air pipe is connected with the fan cover, the other end of the induced air pipe is connected with the recovery box, one end of the recovery box is provided with an air inlet (1-1), the other end of the recovery box is provided with an air outlet (1-2), the air inlet is communicated with the inside of the induced air pipe, and an induced draft fan (3) is arranged at the position, corresponding to the air outlet, on the recovery box; it is characterized in that the method comprises the steps of,
a partition plate (2) is arranged between the air inlet and the air outlet, the interior of the recovery box is divided into a first air chamber (1-3) and a second air chamber (1-4) by the partition plate, the first air chamber is arranged close to the air inlet relative to the second air chamber, a cylinder (4) is fixed on the partition plate, the cylinder penetrates through the partition plate and is in sealing connection with the partition plate, one end of the cylinder close to the air inlet is closed, and the other end of the cylinder is provided with an air outlet (5); the bottom of the cylinder is provided with an air inlet hole (4-1) and a first filter screen (6), the first filter screen is positioned in the first air chamber and covers the air inlet hole, the box body is provided with a water inlet pipe (12), one end of the metal pipe is positioned outside the box body, the other end of the metal pipe extends into the cylinder and is provided with a spray head (13), and the spray head is positioned above the first filter screen.
2. A smoking device for metal welding according to claim 1, wherein a water deflector (14) is provided in the bottom of the cylinder, said water deflector being located between the first filter screen and the air outlet.
3. The smoking device for metal welding as claimed in claim 1, wherein a water collecting tank (17) is provided at a position corresponding to the first filter screen at the bottom end of the recovery tank, and a drain pipe (18) is provided at the bottom end of the water collecting tank.
4. A smoking device for metal welding according to claim 3, wherein the drain pipe is provided with a drain valve and the inlet pipe is provided with a water inlet valve.
5. A smoking device for metal welding according to any one of claims 1 to 4, wherein said partition is provided with ventilation holes, said cylinder being slidably connected to said partition;
a second filter screen (19) is arranged on the cylinder at a position corresponding to the air outlet;
the diameter of one side of the first filter screen, which is close to the vent hole, is smaller than that of the other side, so that the first filter screen is inclined relative to the cylinder;
the first filter screen can move towards the second air chamber under the suction effect of the induced draft fan in a blocking state, and in the moving process, the first filter screen is contacted with the inner side of the vent hole, and the inclination angle is gradually reduced under the limiting effect of the vent hole.
6. The smoking device for metal welding of claim 5, wherein the first filter screen has a minimum outer diameter that is the same as an inner diameter of the vent;
the cylinder is integrally provided with a blocking ring (4-2), at least two baffles (7) are circumferentially arranged in the second cavity, a distance is reserved between every two adjacent baffles, a spring (8) is arranged between each baffle and each blocking ring, the spring abuts against the corresponding blocking ring on the corresponding baffle, a sealing sleeve (9) is arranged on the corresponding blocking ring, one end of the sealing sleeve is in sealing connection with the corresponding blocking ring, and the other end of the sealing sleeve is in sealing connection with the corresponding baffle.
7. The smoking device for metal welding of claim 6, wherein the sealing sleeve is a rubber sleeve, a bellows, or a cloth sleeve.
8. The smoking device for metal welding according to claim 6, wherein one end of the first filter screen, which is close to the second air chamber, is connected with the cylinder, the other end and both sides of the first filter screen extend into the cylinder, and the position corresponding to the air inlet is in contact with the inner side of the air inlet;
the two sides of the first filter screen are connected with an arc-shaped spring piece (16), the two ends of the arc-shaped spring piece are arranged corresponding to the two ends of the first filter screen and are connected into a whole, and the connection position is positioned at one end of the first filter screen far away from the second air chamber;
the middle part of the arc-shaped spring piece is propped against the cylinder or is connected with the cylinder.
9. A smoking device for metal welding according to claim 7, wherein the end of the first filter screen remote from the second plenum is provided with a stop (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310587844.XA CN116510427B (en) | 2023-05-24 | 2023-05-24 | Smoking device for metal welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310587844.XA CN116510427B (en) | 2023-05-24 | 2023-05-24 | Smoking device for metal welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116510427A true CN116510427A (en) | 2023-08-01 |
| CN116510427B CN116510427B (en) | 2023-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310587844.XA Active CN116510427B (en) | 2023-05-24 | 2023-05-24 | Smoking device for metal welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116510427B (en) |
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