CN214937034U - Collecting device and system of wire drawing furnace shielding gas - Google Patents
Collecting device and system of wire drawing furnace shielding gas Download PDFInfo
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- CN214937034U CN214937034U CN202120472075.5U CN202120472075U CN214937034U CN 214937034 U CN214937034 U CN 214937034U CN 202120472075 U CN202120472075 U CN 202120472075U CN 214937034 U CN214937034 U CN 214937034U
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Abstract
The utility model relates to an optic fibre technical field, concretely relates to collection device and system of wire drawing stove protective gas, this collection system includes: a wire drawing tip, a collecting sleeve and a negative pressure gas collecting device. One end of the drawing tip nozzle is used for being connected with a lower opening of the drawing furnace and is used for drawing optical fibers and discharging protective gas along with the optical fibers; the collecting sleeve is sleeved outside the wire drawing tip nozzle, a gap for containing protective gas is reserved between the collecting sleeve and the wire drawing tip nozzle, the collecting sleeve is provided with an outlet for enabling the optical fiber to penetrate out, and the wall of the collecting sleeve is at least provided with an air suction hole; the negative pressure gas collection device is communicated with the air exhaust hole and is used for collecting the protective gas in the gap between the wire drawing tip nozzle and the collection sleeve. The utility model discloses can solve among the prior art direct wire drawing stove protective gas natural discharge with the wire drawing stove end opening, lead to hardly getting up the protective gas at the collection reuse, can cause a large amount of extravagant problems in the clean workshop.
Description
Technical Field
The utility model relates to an optical fiber technology field, concretely relates to collection device and system of wire drawing stove protective gas.
Background
The protective gas of the drawing furnace is various inert gases which are not easy to react with other substances, and has the properties of heat conduction and non-flammability, so the protective gas is widely used for cooling the optical fiber in the drawing process of the optical fiber.
However, after the optical fiber is produced, the drawing furnace shielding gas naturally discharged from the drawing furnace is treated as exhaust gas and then discharged into the air, which causes a lot of waste, and the usage amount of the drawing furnace shielding gas is gradually increased along with the enlargement of the production scale, and the direct discharge mode is no longer suitable for the production requirement of cost reduction and efficiency improvement, so that the helium gas needs to be recovered.
The existing recovery mode mainly extracts the protective gas of the wire drawing furnace at the upper opening of the wire drawing furnace through a vacuum pump, and the protective gas of the wire drawing furnace at the lower opening of the wire drawing furnace is naturally discharged in a clean workshop, but the protective gas is difficult to collect and reuse, so that a great amount of waste can be caused.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a collection device and system of wire drawing stove protection gas can solve among the prior art and directly discharge the wire drawing stove protection gas of wire drawing stove end opening naturally in clean workshop, lead to hardly getting up the reuse with the protection gas in the collection, can cause a large amount of extravagant problems.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
on the one hand, the utility model provides a collection device of wire drawing stove protective gas, include:
one end of the wire drawing tip nozzle is connected with the lower opening of the wire drawing furnace and used for drawing the optical fiber and discharging the protective gas along with the optical fiber;
the collecting sleeve is sleeved on the outer side of the wire drawing tip nozzle, a gap for containing the protective gas is reserved between the collecting sleeve and the wire drawing tip nozzle, the collecting sleeve is provided with an outlet through which the optical fiber penetrates out, and the wall of the collecting sleeve is at least provided with an air suction hole.
On the basis of the technical scheme, the wire drawing furnace further comprises a connecting plate which is used for being connected with the lower opening of the wire drawing furnace, is arranged at one end of the wire drawing tip nozzle and one end of the collecting sleeve, and is provided with a through hole communicated with the wire drawing tip nozzle.
On the basis of the technical scheme, the wire drawing tip nozzle comprises two half tip nozzles, the collecting sleeve comprises two half sleeves, the connecting plate comprises two half plates, each half tip nozzle and each half sleeve are arranged corresponding to the half plates in a connected mode, and the two half sleeves are connected through bolts arranged on the outer walls of the half sleeves.
On the other hand, the utility model also provides a collecting system, include:
one end of the wire drawing tip nozzle is connected with the lower opening of the wire drawing furnace and used for drawing the optical fiber and discharging the protective gas along with the optical fiber;
the collecting sleeve is sleeved on the outer side of the wire drawing tip nozzle, a gap for containing the protective gas is reserved between the collecting sleeve and the wire drawing tip nozzle, the collecting sleeve is provided with an outlet through which the optical fiber penetrates, and the wall of the collecting sleeve is at least provided with an air suction hole;
and the negative pressure gas collecting device is communicated with the air exhaust hole and is used for collecting the protective gas in the gap between the collecting sleeve and the wire drawing tip nozzle.
On the basis of the technical scheme, the negative pressure gas collecting device comprises:
the buffer tank is used for collecting and storing the protective gas;
and one end of the air pumping pipeline is communicated with the air pumping hole, the other end of the air pumping pipeline is communicated with the buffer tank, and a vacuum pump is arranged on the air pumping pipeline.
On the basis of the technical scheme, a pressure sensor is further arranged on the air exhaust pipeline between the air exhaust hole and the vacuum pump, the negative pressure gas collection device further comprises a pressure stabilizing pipeline, one end of the pressure stabilizing pipeline is communicated with the air exhaust pipeline between the air exhaust hole and the vacuum pump, the other end of the pressure stabilizing pipeline is communicated with the buffer tank, a second valve is arranged on the pressure stabilizing pipeline, and the second valve is used for keeping the pressure of the gap between the collection sleeve and the wire drawing tip mouth stable according to the pressure value detected by the pressure sensor.
On the basis of the technical scheme, the negative pressure gas collection device further comprises a filter which is arranged on the gas suction pipeline between the gas suction hole and the vacuum pump.
On the basis of the technical scheme, the negative pressure gas collection device further comprises a first valve which is arranged on the gas suction pipeline between the gas suction hole and the vacuum pump.
On the basis of the technical scheme, the negative pressure gas collection device further comprises a flowmeter which is arranged on the gas extraction pipeline between the gas extraction hole and the vacuum pump.
On the basis of the technical scheme, the device further comprises a purification device which is communicated with the buffer tank and used for purifying the protective gas collected and stored in the buffer tank.
Compared with the prior art, the utility model has the advantages of: install it at the wire drawing stove end opening, when the optic fibre wire drawing, implement the optic fibre wire drawing operation from the wire drawing point mouth, the optic fibre that the wire drawing was accomplished is worn out from collecting telescopic export, and the clearance that holds the protection gas between following exhaust protection gas entering wire drawing point mouth and the collection sleeve is provided with the aspirating hole on the collection sleeve section of thick bamboo wall. The shielding gas in the gap between the drawing tip nozzle and the collecting sleeve can be collected by a gas collecting device, and the design can concentrate most of the shielding gas in the gap between the drawing tip nozzle and the collecting sleeve, so that most of the shielding gas can be collected by the gas collecting device. The problem of wire drawing stove protective gas natural discharge in clean workshop of stove lower port among the prior art, hardly collect the reuse with the protective gas, lead to causing a large amount of wastes is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a collecting device in an embodiment of the present invention;
fig. 2 is a front view of a collecting device according to an embodiment of the present invention;
fig. 3 is a left side view of a collection device in an embodiment of the present invention;
fig. 4 is a top view of a collection device in an embodiment of the invention;
fig. 5 is a schematic structural diagram of a collecting system according to an embodiment of the present invention.
In the figure: 1. drawing a sharp nozzle; 2. a collection sleeve; 21. an outlet; 22. an air exhaust hole; 23. a bolt; 3. a connecting plate; 31. a via hole; 4. a negative pressure gas collection device; 41. a buffer tank; 42. a vacuum pump; 43. a filter; 44. a first valve; 45. a flow meter; 46. a second valve; 47. a pressure sensor; 5. a purification device; 6. a wire drawing furnace.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a collecting device in an embodiment of the present invention; fig. 2 is a front view of a collecting device according to an embodiment of the present invention; fig. 3 is a left side view of a collection device in an embodiment of the present invention; fig. 4 is a top view of a collection device in an embodiment of the invention; as shown in fig. 1 to 4, the utility model provides a collection device of wire drawing furnace shielding gas, which comprises: a wire drawing tip 1 and a collecting sleeve 2.
One end of the drawing tip nozzle 1 is used for being connected with a lower opening of a drawing furnace and is used for drawing optical fibers and discharging protective gas along with the optical fibers; the collecting sleeve 2 is sleeved on the outer side of the wire drawing tip nozzle 1, a gap for containing protective gas is reserved between the collecting sleeve 2 and the wire drawing tip nozzle 1, the collecting sleeve 2 is provided with an outlet 21 for enabling the optical fiber to penetrate out, and the wall of the collecting sleeve 2 is at least provided with an air exhaust hole 22.
When the collecting device of the protective gas of the drawing furnace is used, the collecting device is arranged at the lower opening of the drawing furnace 6, when optical fiber is drawn, the optical fiber drawing operation is carried out from the drawing tip nozzle 1, the drawn optical fiber penetrates out from the outlet 21 of the collecting sleeve 2, the protective gas enters the gap between the drawing tip nozzle 1 and the collecting sleeve 2 along with the discharged protective gas, and the wall of the collecting sleeve 2 is provided with the air exhaust hole 22. The shielding gas in the gap between the drawing tip nozzle 1 and the collecting sleeve 2 can be collected by a gas collecting device, and the design can concentrate most of the shielding gas in the gap between the drawing tip nozzle 1 and the collecting sleeve 2, so that most of the shielding gas can be collected by the gas collecting device. The problem of wire drawing stove protective gas natural discharge in clean workshop of stove lower port among the prior art, hardly collect the reuse with the protective gas, lead to causing a large amount of wastes is avoided.
In this embodiment, collection device changes the individual layer form into the jacket layer form, for the quantity that reduces the protective gas of wire drawing stove 6, wire drawing point mouth 1 adopts less aperture, and naturally exhaust protective gas volume is also less, divides collection device into the skin and wraps up the inlayer, with the collection of the wire drawing protective gas maximize of naturally exhaust in the wire drawing stove in the intermediate layer cavity to open 1 or a plurality of extraction opening on collecting sleeve 2's outer wall, the rethread air exhaust device is collected, the collection protective gas that can maximize.
In some alternative embodiments, the collecting device further comprises a connecting plate 3 for connection to the lower mouth of the drawing furnace 6, which is provided at one end of the drawing tip 1 and the collecting sleeve 2, and is provided with a through hole 31 communicating with the drawing tip 1.
In this embodiment, all locate one side of connecting plate 3 with sharp mouth 1 of wire drawing and collect sleeve 2, be connected with the wire drawing stove end opening with connecting plate 3, can improve connection efficiency to can seal the one end of sharp mouth 1 of wire drawing and collecting sleeve 2 through connecting plate 3.
In some alternative embodiments, the drawing tip 1 comprises two half tips, the collecting sleeve 2 comprises two half sleeves, the connecting plate 3 comprises two half plates, each half tip and half sleeve is connected to a corresponding half plate, and the two half sleeves are connected by means of bolts 23 provided on the outer wall thereof.
In this embodiment, the wire drawing tip nozzle 1, the collecting sleeve 2 and the connecting plate 3 are divided into two halves in the axial direction, which can facilitate the disassembly of the whole collecting device and the cleaning of the gap between the wire drawing tip nozzle 1 and the collecting sleeve 2.
Fig. 5 is a schematic structural view of a collecting system in an embodiment of the present invention, as shown in fig. 5, the present invention further provides a collecting system including the collecting device, which includes: a wire drawing tip 1, a collecting sleeve 2 and a negative pressure gas collecting device 4. One end of the drawing tip nozzle 1 is connected with a lower opening of a drawing furnace and used for drawing optical fibers and discharging protective gas along with the optical fibers; the collecting sleeve 2 is sleeved on the outer side of the wire drawing tip 1, a gap for containing protective gas is reserved between the collecting sleeve 2 and the wire drawing tip 1, the collecting sleeve 2 is provided with an outlet 21 for enabling the optical fiber to penetrate out, and the wall of the collecting sleeve 2 is at least provided with an air suction hole 22; the negative pressure gas collecting device 4 is communicated with the air exhaust hole 22 and is used for collecting the protective gas in the gap between the wire drawing tip nozzle 1 and the collecting sleeve 2.
When the collecting system is used, the shielding gas in the gap between the drawing tip nozzle 1 and the collecting sleeve 2 is collected through a gas collecting device, so that the shielding gas can be mostly concentrated in the gap between the drawing tip nozzle 1 and the collecting sleeve 2, and the shielding gas can be mostly collected through the negative pressure gas collecting device 4. The problem of wire drawing stove protective gas natural discharge in clean workshop of stove lower port among the prior art, hardly collect the reuse with the protective gas, lead to causing a large amount of wastes is avoided.
In some alternative embodiments, the negative pressure gas collecting device 4 includes: a buffer tank 41 for collecting and storing the shielding gas; the device also comprises an air pumping pipeline, one end of the air pumping pipeline is communicated with the air pumping hole 22, the other end of the air pumping pipeline is communicated with the buffer tank 41, and a vacuum pump 42 is arranged on the air pumping pipeline.
In the present embodiment, the pressure in the gap between the drawing tip 1 and the collection sleeve 2 is reduced by the vacuum pump 42, and the shielding gas in the gap flows from the vacuum pump 42 into the buffer tank 41 to be collected and stored.
In some optional embodiments, a pressure sensor 47 is further disposed on the air suction pipeline between the air suction hole 22 and the vacuum pump 42, the negative pressure gas collection device 4 further includes a pressure stabilizing pipeline, one end of the pressure stabilizing pipeline is communicated with the air suction pipeline between the air suction hole 22 and the vacuum pump 42, the other end of the pressure stabilizing pipeline is communicated with the buffer tank 41, a second valve 46 is disposed on the pressure stabilizing pipeline, and the second valve 46 is used for maintaining the pressure of the gap between the collection sleeve 2 and the fiber drawing tip 1 to be stable according to a pressure value detected by the pressure sensor 47.
In the present embodiment, the pressure of the suction line between the suction hole 22 and the vacuum pump 42, that is, the pressure of the gap between the collection sleeve 2 and the drawing tip 1 is detected by the detection pressure sensor 47. When the pressure in the gap between the collection sleeve 2 and the tip 1 is less than the set pressure, i.e., the pressure in the suction line between the suction hole 22 and the vacuum pump 42, the opening of the second valve 46 is adjusted so that the pressure in the gap between the collection sleeve 2 and the tip 1 is kept constant. The opening degree of the second valve 46 can be manually adjusted according to the pressure of the manually read pressure sensor 47; the pressure of the pressure sensor 47 can also be obtained by the PLC control system, and a preset pressure is set, so as to adjust the opening degree of the second valve 46. The second valve 46 is a power ball valve.
In some alternative embodiments, the negative pressure gas collecting device 4 further includes a filter 43 disposed on the air exhaust pipeline between the air exhaust hole 22 and the vacuum pump 42.
In the present embodiment, the filter 43 is a dust filter for filtering dust and other foreign substances generated in the drawing furnace 6.
In some alternative embodiments, the negative pressure gas collecting device 4 further includes a first valve 44, which is disposed on the gas exhaust line between the gas exhaust hole 22 and the vacuum pump 42.
In this embodiment, when the operation of the wire drawing line is stopped, the first valve 44 is closed so as not to draw in a large amount of air. In this embodiment, the control system may obtain the operating state number of the drawing tower in the drawing line operation, and when the drawing tower stops operating, the control system controls the first valve 44 to close. In this example, the first valve 44 is an electric ball valve.
In some alternative embodiments, the negative pressure gas collecting device 4 further includes a flow meter 45, which is disposed on the gas exhaust line between the gas exhaust hole 22 and the vacuum pump 42.
In the embodiment, the air suction amount of the wire drawing operation is adjusted to be 15L/min through the reading of the flow meter 45, and the pressure of the system is kept stable through the pressure value of the pressure sensor 47; after a period of time, if the air extraction amount is less than 15L/min, whether the dust filter is blocked or not needs to be checked, and the dust filter needs to be replaced.
In this embodiment, the equipment on the suction line includes a filter 43, a first valve 44, a flow meter 45, a pressure sensor 47, and a vacuum pump 42 in this order. One end of the pressure-stabilizing pipe is communicated with the suction pipe between the flow meter 45 and the vacuum pump 42, and the other end is communicated with the buffer tank 41.
In some optional embodiments, a purification and purification device 5 is further included, which is in communication with the buffer tank 41 and is used for purifying the shielding gas collected and stored in the purification buffer tank 41.
In the embodiment, the protective gas in the buffer tank 41 is purified by the purification device 5, and can be reused in the next wire drawing operation.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, 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. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a collection device of wire drawing stove protecting gas which characterized in that includes:
one end of the drawing tip nozzle (1) is used for being connected with a lower opening of a drawing furnace, drawing optical fibers and discharging protective gas along with the optical fibers;
the collecting sleeve (2) is sleeved on the outer side of the wire drawing tip nozzle (1) and is provided with a gap for containing the protective gas between the wire drawing tip nozzle (1), the collecting sleeve (2) is provided with an outlet (21) for enabling the optical fiber to penetrate out, and the wall of the collecting sleeve (2) is at least provided with an air suction hole (22).
2. The drawing furnace shielding gas collecting device according to claim 1, wherein: the wire drawing furnace is characterized by further comprising a connecting plate (3) used for being connected with a lower opening of the wire drawing furnace, the connecting plate is arranged at one end of the wire drawing tip nozzle (1) and one end of the collecting sleeve (2), and a through hole (31) communicated with the wire drawing tip nozzle (1) is formed in the connecting plate.
3. The drawing furnace shielding gas collecting device according to claim 2, wherein: the wire drawing tip nozzle (1) comprises two half tip nozzles, the collecting sleeve (2) comprises two half sleeves, the connecting plate (3) comprises two half plates, each half tip nozzle and each half sleeve are arranged corresponding to the half plates in a connected mode, and the two half sleeves are connected through bolts (23) arranged on the outer walls of the half sleeves.
4. A collection system comprising the collection device of claim 1, comprising:
one end of the drawing tip nozzle (1) is used for being connected with a lower opening of a drawing furnace, drawing optical fibers and discharging protective gas along with the optical fibers;
the collecting sleeve (2) is sleeved on the outer side of the wire drawing tip nozzle (1), a gap for containing the protective gas is reserved between the collecting sleeve (2) and the wire drawing tip nozzle (1), an outlet (21) for enabling the optical fiber to penetrate out is formed in the collecting sleeve (2), and at least one air suction hole (22) is formed in the wall of the collecting sleeve (2);
and the negative pressure gas collecting device (4) is communicated with the air exhaust hole (22) and is used for collecting the protective gas in the gap between the collecting sleeve (2) and the wire drawing tip nozzle (1).
5. A collecting system as claimed in claim 4, characterised in that the negative pressure gas collecting device (4) comprises:
a buffer tank (41) for collecting and storing shielding gas;
and one end of the air pumping pipeline is communicated with the air pumping hole (22), the other end of the air pumping pipeline is communicated with the buffer tank (41), and a vacuum pump (42) is arranged on the air pumping pipeline.
6. The collecting system according to claim 5, characterized in that a pressure sensor (47) is arranged on the air suction pipeline between the air suction hole (22) and the vacuum pump (42), the negative pressure air collecting device (4) further comprises a pressure stabilizing pipeline, one end of the pressure stabilizing pipeline is communicated with the air suction pipeline between the air suction hole (22) and the vacuum pump (42), the other end of the pressure stabilizing pipeline is communicated with the buffer tank (41), a second valve (46) is arranged on the pressure stabilizing pipeline, and the second valve (46) is used for keeping the pressure of the gap between the collecting sleeve (2) and the fiber drawing tip nozzle (1) stable according to the pressure value detected by the pressure sensor (47).
7. A collecting system as claimed in claim 5, characterised in that the negative pressure gas collecting device (4) further comprises a filter (43) arranged on the suction line between the suction opening (22) and the vacuum pump (42).
8. A collecting system according to claim 5, characterised in that the negative pressure gas collecting device (4) further comprises a first valve (44) arranged on the suction line between the suction opening (22) and the vacuum pump (42).
9. A collecting system as claimed in claim 5, characterised in that the negative pressure gas collecting device (4) further comprises a flow meter (45) arranged on the suction line between the suction opening (22) and the vacuum pump (42).
10. The collection system according to claim 5, further comprising a purification device (5) in communication with the buffer tank (41) for purifying the shielding gas collected and stored in the buffer tank (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120472075.5U CN214937034U (en) | 2021-03-03 | 2021-03-03 | Collecting device and system of wire drawing furnace shielding gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120472075.5U CN214937034U (en) | 2021-03-03 | 2021-03-03 | Collecting device and system of wire drawing furnace shielding gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214937034U true CN214937034U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120472075.5U Active CN214937034U (en) | 2021-03-03 | 2021-03-03 | Collecting device and system of wire drawing furnace shielding gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214937034U (en) |
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2021
- 2021-03-03 CN CN202120472075.5U patent/CN214937034U/en active Active
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