CN218426079U - Reflow oven waste gas recovery device - Google Patents
Reflow oven waste gas recovery device Download PDFInfo
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- CN218426079U CN218426079U CN202222632622.9U CN202222632622U CN218426079U CN 218426079 U CN218426079 U CN 218426079U CN 202222632622 U CN202222632622 U CN 202222632622U CN 218426079 U CN218426079 U CN 218426079U
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Abstract
The utility model belongs to the technical field of waste gas recovery, especially, relate to a reflow oven waste gas recovery device, include: the rear end of the bottom plate is provided with a supporting seat; the reflow oven is fixedly arranged on the supporting seat; an air intake duct and an air delivery duct; the gas collecting assembly is fixedly arranged at the left front end of the bottom plate and is communicated with the reflow soldering furnace through a gas feeding pipeline; the air inlet box body is fixedly arranged at the right front end of the bottom plate, is communicated with the reflow oven through an air inlet pipeline and is used for supplying air to the reflow oven; when the pumping is collected to exhaust gas, through the gas collection subassembly and the rotation motor that set up, groove and cylindric lock cooperation transmission will rotate and convert the reciprocating motion into compression piston, through the reciprocating motion about compression piston is in the compression chamber, produce the continuous variable pressure difference, produce positive pressure difference when compression piston shifts up and will mix the exhaust gas pumping, produce negative pressure lifting in the air inlet chamber when compression piston moves down and cut-off the ball, let the inflow of exhaust gas to realize continuity exhaust gas collection pumping.
Description
Technical Field
The utility model belongs to the technical field of waste gas recovery, especially, relate to a reflow oven waste gas recovery device.
Background
In the smelting process of the reflow soldering furnace, the adopted fuels mainly comprise coal, coke, heavy oil, diesel oil, coal gas, natural gas and the like, after welding, the generated waste gas contains a large amount of smoke dust and gases containing oxides of sulfur, carbon, phosphorus, nitrogen and the like, and the smoke dust and the gases can be discharged along with the tail gas, so that the environmental pollution is very easy to cause, and the conventional tail gas device is mainly designed aiming at the gas and cannot effectively collect and uniformly recycle the waste gas.
The publication number is CN 208872084U's patent, it discloses a kind of aluminium smelting furnace tail gas recovery unit, including installing the tail gas pipeline in the smelting furnace upper end, this tail gas pipeline other end inserts in the exhaust-gas treatment pond, wherein install the extraction fan in the tail gas pipeline, the tail gas pipeline is including setting up the vertical section in the smelting furnace upper end, insert the slope section in the exhaust-gas treatment pond and connect the horizontal segment of vertical section and slope section, wherein still weld on the inner arc wall that is close to the slope section in the horizontal segment has the round ring, the horizontal segment bottom is provided with the guiding groove along its length direction, this guiding groove bottom end slope sets up, and the guiding groove bottom end face that is close to vertical section is higher than the guiding groove bottom end face that is close to the slope section, the welding of horizontal segment bottom has the recovery pipe of intercommunication guiding groove and bin.
However, the equipment has other problems that when waste gas is recycled, pressure difference exists between the welding furnace and the outside when the welding furnace is heated or cooled, the arranged air draft assembly is limited and the rotating speed of the fan is low in the process of collecting tail gas, the generated pressure difference is difficult to ensure that the tail gas is sufficiently recycled, so that the waste gas is too long in time staying in the furnace, the space of fuel gas such as welding gas is occupied, and the production efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reflow oven waste gas recovery device to solve the problem that proposes among the above-mentioned background art. In order to achieve the above object, the utility model provides a following technical scheme: a reflow oven exhaust gas recovery device, comprising:
the rear end of the bottom plate is provided with a supporting seat;
the reflow oven is fixedly arranged on the supporting seat;
an air intake duct;
an air supply duct;
the gas collecting assembly is fixedly arranged at the left front end of the bottom plate and is communicated with the reflow soldering furnace through a gas feeding pipeline;
and the air inlet box body is fixedly arranged at the right front end of the bottom plate, is communicated with the reflow oven through an air inlet pipeline and is used for supplying air to the reflow oven.
In this technical scheme, when carrying out the waste gas recovery of reflow soldering stove, at first start the box that admits air, the box that admits air supplies gas to the reflow soldering stove, with welding protective gas through the inlet duct pump income, then produce waste gas when reflow soldering stove department accomplishes welding operation, then scatter to gas collection subassembly department through gas supply duct waste gas, the gas collection subassembly is unified to collecting the pump sending protective gas and waste gas in the reflow soldering stove.
In any of the above technical solutions, further, the gas collecting assembly includes:
the pump air block is internally provided with a compression cavity, the upper end of the compression cavity is provided with a through hole, the through hole is connected with a pressure relief air valve, and air can only flow out in one direction and is used for being connected with a waste gas drainage pipeline;
the flow intercepting block is internally provided with an air inlet cavity, the upper end of the air inlet cavity is provided with a separation cavity, and a circular through hole is formed between the air inlet cavity and the separation cavity;
and the compression piston is arranged in the compression cavity in a sliding mode and used for closing the compression cavity to pump the waste gas inside the compression cavity.
In the technical scheme, mixed waste gas at the position of the gas supply pipeline firstly enters the gas inlet cavity through the through hole of the gas inlet cavity, then flows into the separation cavity through the through hole at the upper end of the gas inlet cavity, and finally flows into the compression cavity, the compression piston moves upwards to compress the mixed waste gas, the compressed gas is discharged from the through hole at the upper end of the compression cavity, and finally the waste gas is uniformly recovered through the manual access pipeline and discharged into reaction reagent liquid for waste gas treatment.
In any one of the above technical solutions, further, the gas collecting assembly further includes:
the lower end wall of the separation cavity is arc-shaped and is always contacted with the interception ball, and the interception ball isolates the air inlet cavity from the separation cavity, so that waste gas can only pass through the separation cavity from the air inlet cavity in one way.
In this technical scheme, wherein through the ball that dams that sets up, its sphere is laminated with the lower extreme sphere of compartment all the time, has realized sealedly, has played the effect of check valve, and the chamber of will admitting air is isolated with the compartment, and tail gas backward flow when having avoided compression chamber department gas pumping.
In any one of the above technical solutions, further, the gas collecting assembly further includes:
the upper end of the reset spring is fixedly connected to the upper end face of the separation cavity, and the lower end of the reset spring is tightly pressed against the spherical surface of the intercepting ball, so that the intercepting ball is tightly pressed against the arc-shaped face of the separation cavity all the time.
In this technical scheme, wherein when the gas of air inlet chamber department is envisioned to be discharged into the compartment through air inlet chamber upper end through-hole, the ball that dams is driven to gas and is incompletely contacted with following table, and the barycenter of ball that dams changes, through setting up reset spring this moment, reduces the vibrations of ball department that dams, lets its quick return original position, guarantees the continuity of gas collection.
Example 2:
the embodiment provides a reflow oven exhaust gas recovery device, which comprises the technical scheme of the embodiment and also has the following technical characteristics.
In any of the above technical solutions, further, the gas collecting assembly further includes:
the motor is rotated, the rear end of the motor is fixedly connected with the lower end of the rear end wall of the compression cavity, and a disk is arranged at the rotating shaft at the front end of the motor;
the cylindrical pin is fixedly connected to the upper end face of the rotating motor disc;
and the upper end of the linkage rod is fixedly connected to the lower end face of the compression piston, the lower end of the linkage rod is provided with a rectangular groove, and the upper end face and the lower end face of the rectangular groove are always in sliding contact with the cylindrical surface of the cylindrical pin.
In the technical scheme, when gas in the compression cavity is pumped, the rotating motor is started to drive the disc to rotate, the disc drives the cylindrical pin to periodically rotate, and the compression piston is driven to reciprocate up and down in the compression cavity through contact transmission with the lower end groove of the linkage rod; when the compression piston moves upwards, the compression cavity generates positive pressure to pump mixed waste gas, and when the compression piston moves downwards, the separation cavity and the gas inlet cavity generate negative pressure to act on the interception ball to drive the interception ball to finish the inflow of waste gas and gas, so that continuous waste gas collection and pumping are realized.
The beneficial effects of the utility model are that: when the waste gas is collected and pumped, the gas collection assembly and the rotating motor are arranged, the groove and the cylindrical pin are matched for transmission, the rotation is converted into the reciprocating motion of the compression piston, the compression piston reciprocates up and down in the compression cavity to generate a continuously variable pressure difference, the compression piston generates a positive pressure difference when moving up to pump the mixed waste gas, and the compression piston moves down to generate a negative pressure in the gas inlet cavity to lift the cutoff ball so as to enable the waste gas to flow in, thereby realizing the continuous waste gas collection and pumping.
Drawings
Fig. 1 is an external view of the present invention;
fig. 2 is a front view of the present invention;
fig. 3 is a schematic structural diagram of the middle gas collecting assembly of the present invention.
The reference numbers in the figures are: 100. a base plate; 110. a supporting seat; 200. a reflow oven; 300. an air intake duct; 400. an air supply duct; 500. a gas collection assembly; 510. pumping the air block; 511. a compression chamber; 520. a flow interception block; 521. an air inlet cavity; 522. a separation chamber; 530. an intercepting ball; 540. a return spring; 550. a compression piston; 560. rotating the motor; 570. a cylindrical pin; 580. a linkage rod; 600. an air inlet box body.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
In the description of the present application, it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. For convenience of description, the dimensions of the various features shown in the drawings are not necessarily drawn to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.
It should be noted that in the description of the present application, the orientation or positional relationship indicated by the terms such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" and the like are generally based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and in the case of not making a reverse description, these orientation terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
It should be noted that, in the present application, 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 a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Example 1:
as shown in fig. 1, the present embodiment provides a reflow oven exhaust gas recovery apparatus, including:
a base plate 100 having a support base 110 at a rear end thereof;
a reflow furnace 200 fixedly installed on the support base 110;
an air intake duct 300;
an air supply duct 400;
the gas collecting assembly 500 is fixedly arranged at the left front end of the bottom plate 100 and is communicated with the reflow soldering furnace 200 through a gas feeding pipeline 400;
and the air inlet box body 600 is fixedly arranged at the right front end of the bottom plate 100, is communicated with the reflow soldering furnace 200 through an air inlet pipeline 300 and is used for supplying air to the reflow soldering furnace.
In this technical scheme, when carrying out the waste gas recovery of reflow soldering stove, at first start the box 600 that admits air, the box 600 that admits air supplies gas to reflow soldering stove 200, with the welding protective gas through admission line 300 pump income, then produce waste gas when reflow soldering stove 200 department accomplishes welding operation, then scatter to gas collection subassembly 500 department through gas supply line 400 waste gas, gas collection subassembly 500 carries out the pump sending of unified collection to protective gas and waste gas in reflow soldering stove 200.
As shown in fig. 2, in the present embodiment, specifically, the gas collecting assembly 500 includes:
the pump air block 510 is internally provided with a compression cavity 511, the upper end of the compression cavity 511 is provided with a through hole, the through hole is connected with a pressure relief air valve, and air can only flow out in a single direction and is used for connecting a waste gas drainage pipeline;
the inside of the interception block 520 is provided with an air inlet cavity 521, the upper end of the air inlet cavity 521 is provided with a separation cavity 522, and a circular through hole is formed between the air inlet cavity 521 and the separation cavity 522;
and a compression piston 550, wherein the compression piston 550 is slidably arranged in the compression cavity 511 and used for closing the compression cavity 511 to pump the internal exhaust gas.
In the technical scheme, the mixed waste gas at the air feeding pipeline 400 firstly enters the air feeding cavity 521 through the through hole of the air feeding cavity 521, then flows into the separation cavity 522 through the through hole at the upper end of the air feeding cavity 521, and finally flows into the compression cavity 511, at the moment, the compression piston 550 moves upwards to compress the mixed waste gas, the compressed gas is discharged from the through hole at the upper end of the compression cavity 511, and finally the waste gas is uniformly recycled through a manual access pipeline and discharged into the reaction reagent liquid for waste gas treatment.
As shown in fig. 2, in this embodiment, specifically, the gas collecting assembly 500 further includes:
the shut-off ball 530, the lower end wall of the compartment 522 is curved and always contacts the shut-off ball 530, and the shut-off ball 530 isolates the intake chamber 521 from the compartment 522, so that the exhaust gas can only pass through the compartment 522 from the intake chamber 521 in one direction.
In the technical scheme, the intercepting ball 530 is arranged, the spherical surface of the intercepting ball is always attached to the lower end spherical surface of the separation cavity 522, sealing is achieved, the function of a one-way valve is achieved, the air inlet cavity 521 and the separation cavity 522 are isolated, and tail gas backflow in the air pumping process at the compression cavity 511 is avoided.
As shown in fig. 2, in the present embodiment, preferably, the gas collecting assembly 500 further includes:
the upper end of the return spring 540 is fixedly connected to the upper end face of the separation chamber 522, and the lower end of the return spring is tightly pressed against the spherical surface of the intercepting ball 530, so that the intercepting ball 530 is tightly pressed against the arc-shaped face of the separation chamber 522 all the time.
In the technical scheme, when gas at the position of the gas inlet cavity 521 is expected to be discharged into the separation cavity 522 through the through hole at the upper end of the gas inlet cavity 521, the gas drives the intercepting ball 530 to be not in complete contact with the lower table, the mass center of the intercepting ball 530 is changed, at the moment, the vibration at the position of the intercepting ball 530 is reduced by arranging the return spring 540, the intercepting ball is quickly returned to the original position, and the continuity of gas collection is ensured.
Example 2:
the present embodiment provides a reflow oven exhaust gas recycling device, which includes the technical solutions of the above embodiments, and also has the following technical features.
As shown in fig. 2, in the present embodiment, the gas collecting assembly 500 further includes:
a rotary motor 560, the rear end of which is fixedly connected to the lower end of the rear end wall of the compression chamber 511, and a rotary shaft at the front end of which is provided with a disc;
a cylindrical pin 570 fixedly connected to the upper end surface of the disc of the rotary motor 560;
and the upper end of the linkage rod 580 is fixedly connected to the lower end surface of the compression piston 550, the lower end of the linkage rod is provided with a rectangular groove, and the upper end surface and the lower end surface of the rectangular groove are always in sliding contact with the cylindrical surface of the cylindrical pin 570.
In the technical scheme, when the gas in the compression cavity 511 is pumped, the rotating motor 560 is started to drive the disc to rotate, the disc drives the cylindrical pin 570 to periodically rotate, and the compression piston 550 is driven to reciprocate up and down in the compression cavity 511 through contact transmission with the lower end groove of the linkage rod 580; when the compression piston 550 moves upwards, positive pressure is generated in the compression cavity 511 to pump mixed exhaust gas, and when the compression piston 550 moves downwards, negative pressure is generated in the separation cavity 522 and the air inlet cavity 521, so that the negative pressure acts on the interception ball 530 to drive the interception ball 530 to complete the inflow of the exhaust gas, and continuous exhaust gas collection and pumping are realized.
While the embodiments of the present application have been described in connection with the drawings, the embodiments and features of the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present application and the claims.
Claims (5)
1. A reflow oven exhaust gas recovery device, comprising:
a bottom plate (100) provided at the rear end thereof with a support base (110);
the reflow oven (200) is fixedly arranged on the supporting seat (110);
an air intake duct (300);
an air supply duct (400);
the gas collecting assembly (500) is fixedly arranged at the left front end of the bottom plate (100) and is communicated with the reflow soldering furnace (200) through the gas feeding pipeline (400);
and the air inlet box body (600) is fixedly arranged at the right front end of the bottom plate (100), and is used for communicating the air inlet pipeline (300) with the reflow oven (200) and supplying air to the reflow oven.
2. A reflow oven waste gas recovery apparatus in accordance with claim 1, wherein the gas collection assembly (500) includes:
the pump air block (510) is internally provided with a compression cavity (511), the upper end of the compression cavity (511) is provided with a through hole, the through hole is connected with a pressure relief air valve, and air can only flow out in one direction and is used for being connected with a waste gas drainage pipeline;
the flow intercepting block (520) is internally provided with an air inlet cavity (521), the upper end of the air inlet cavity (521) is provided with a separation cavity (522), and a circular through hole is formed between the air inlet cavity (521) and the separation cavity (522);
a compression piston (550), wherein the compression piston (550) is slidably arranged in the compression cavity (511) and used for closing the compression cavity (511) to pump the internal exhaust gas.
3. A reflow oven exhaust gas recovery apparatus in accordance with claim 2, wherein the gas collection assembly (500) further comprises:
the lower end wall of the separation cavity (522) is arc-shaped and is always contacted with the interception ball (530), the interception ball (530) isolates the air inlet cavity (521) from the separation cavity (522), and waste gas can only pass through the separation cavity (522) from the air inlet cavity (521) in a one-way mode.
4. A reflow oven exhaust gas recovery apparatus in accordance with claim 3, wherein the gas collection assembly (500) further comprises:
and the upper end of the return spring (540) is fixedly connected to the upper end face of the separation cavity (522), and the lower end of the return spring is tightly pressed against the spherical surface of the interception ball (530), so that the interception ball (530) is always tightly pressed against the arc-shaped face of the separation cavity (522).
5. A reflow oven exhaust gas recovery apparatus in accordance with claim 2, wherein the gas collection assembly (500) further comprises:
the rear end of the rotating motor (560) is fixedly connected with the lower end of the rear end wall of the compression cavity (511), and a disk is arranged at the rotating shaft at the front end;
a cylindrical pin (570) fixedly connected to an upper end surface of the disc of the rotating motor (560);
and the upper end of the linkage rod (580) is fixedly connected to the lower end face of the compression piston (550), the lower end of the linkage rod is provided with a rectangular groove, and the upper end face and the lower end face of the rectangular groove are always in sliding contact with the cylindrical surface of the cylindrical pin (570).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222632622.9U CN218426079U (en) | 2022-10-08 | 2022-10-08 | Reflow oven waste gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222632622.9U CN218426079U (en) | 2022-10-08 | 2022-10-08 | Reflow oven waste gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218426079U true CN218426079U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222632622.9U Active CN218426079U (en) | 2022-10-08 | 2022-10-08 | Reflow oven waste gas recovery device |
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| CN (1) | CN218426079U (en) |
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