CN213113096U - Optical fiber deuterium treatment device - Google Patents
Optical fiber deuterium treatment device Download PDFInfo
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- CN213113096U CN213113096U CN202021497155.8U CN202021497155U CN213113096U CN 213113096 U CN213113096 U CN 213113096U CN 202021497155 U CN202021497155 U CN 202021497155U CN 213113096 U CN213113096 U CN 213113096U
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Abstract
The utility model discloses an optical fiber deuterium treatment device, which comprises a deuterium tank, a heater and a temperature detector, wherein the heater and the temperature detector are arranged on the deuterium tank; the heater and the temperature detector are both connected with the temperature controller; the temperature controller is provided with a PWM voltage control unit for adjusting the voltage pulse width of the heater according to the set temperature and the detection temperature of the temperature detector; the circuit loop of the heater is connected in series with an overheat protection switch which is arranged in the deuterium tank or attached to the outer wall of the deuterium tank. The device adopts the PWM voltage control unit of thermoscope and temperature controller to realize the feedback regulation of deuterium jar temperature, and the PWM voltage control unit can be according to the difference between the detection temperature of thermoscope and the settlement temperature of controller, and the voltage pulse width of dynamic adjustment heater realizes the accurate control of deuterium jar temperature. In addition, the overheat protection of the temperature of the deuterium tank is realized by combining the overheat protection switch, the temperature of the deuterium tank cannot be accurately controlled due to faults of the temperature controller, the temperature detector and the heater, so that unnecessary loss is avoided, and the safety and the reliability of equipment are improved.
Description
Technical Field
The utility model relates to an optic fibre field of making especially relates to an optic fibre deuterium processing apparatus.
Background
During the drawing process of the optical fiber, disordered Si-O free radicals are generated, and the Si-O free radicals are easy to generate Si-OH with H, so that the water peak at 1385nm is increased. Therefore, after the drawing of the full-wave optical fibers, the optical fibers are all subjected to deuterium treatment, and can survive the corrosion of a hydrogen-containing environment for a long time.
In the deuterium processing process, the deuterium processing equipment such as a deuterium tank is generally heated to improve the activity of deuterium gas molecules in the deuterium tank, so that the deuterium processing process is accelerated, the production period of the optical fiber is shortened, and the production cost is reduced.
In the prior art, in order to control the temperature within the deuterium processing apparatus within an interval range, the deuterium processing apparatus generally employs intermittent heating control. This heating control method is not accurate enough for temperature control in the deuterium processing apparatus, and can not completely ensure the quality of deuterium processing. Meanwhile, if the temperature sensor or the heating device malfunctions during the heating process of the deuterium processing apparatus, the deuterium processing apparatus may be overheated, thereby damaging the optical fiber being deuterium processed or causing danger to the apparatus and the human body.
Therefore, how to precisely control the temperature of the deuterium tank and avoid overheating of the deuterium processing equipment becomes an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an optic fibre deuterium processing apparatus can accurate control optic fibre deuterium processing's temperature, avoids leading to the high temperature because of the device trouble.
In order to achieve the purpose, the utility model provides an optical fiber deuterium processing device, which comprises a deuterium tank, a heater and a temperature detector, wherein the heater and the temperature detector are arranged on the deuterium tank; the heater and the temperature detector are both connected with a temperature controller;
the temperature controller is provided with a PWM voltage control unit used for adjusting the voltage pulse width of the heater according to the set temperature and the detection temperature of the temperature detector;
and a circuit loop of the heater is connected with an overheating protection switch in series, and the overheating protection switch is arranged in the deuterium tank or attached to the outer wall of the deuterium tank.
Preferably, the heater is a resistance wire heating belt.
Preferably, the resistance wire heating tape includes an insulating rubber tape which is bent and deformed and fixed to the deuterium tank, and a resistance wire which is fixed to the insulating rubber tape.
Preferably, the heating belt is closely attached to the outer side wall of the deuterium tank.
Preferably, the temperature detector is a thermocouple; the thermocouple is arranged in the deuterium tank; the lateral wall of the deuterium tank is provided with a thermocouple threading hole for the cable of the thermocouple to penetrate through, and a thermocouple sealing heat insulation piece is arranged between the thermocouple threading hole and the cable of the thermocouple.
Preferably, the overheat protection switch is disposed inside the deuterium tank.
Preferably, the heater is disposed within the deuterium canister; the side wall of the deuterium tank is provided with a heater threading hole for a cable of the heater to pass through; and a heater sealing heat-insulating piece is arranged between the heater threading hole and the cable of the heater.
Preferably, the deuterium tank is provided with an air inlet hole and an air outlet hole; the air inlet is connected with an air inlet pipeline used for introducing deuterium gas into the deuterium tank; the air outlet is connected with a vacuum pump and an exhaust valve; and the air outlet hole discharges air to the outside through the exhaust valve.
Preferably, the air outlet is connected with a vacuum pipeline and an exhaust pipeline; the vacuum pump is connected to the vacuum pipeline through a stop valve; the exhaust valve is connected to the exhaust pipeline.
Compared with the prior art, the optical fiber deuterium processing device provided by the utility model comprises a deuterium tank, a heater and a temperature detector, wherein the heater and the temperature detector are arranged on the deuterium tank; wherein, the heater and the temperature detector are both electrically connected with the temperature controller.
The temperature controller has a PWM voltage control unit for adjusting the voltage pulse width of the heater according to a set temperature and a detected temperature of the temperature detector. This optic fibre deuterium processing apparatus passes through the temperature in the thermoscope real-time detection deuterium jar, combines PWM voltage control unit to realize adjusting the voltage pulse width of heater according to the settlement temperature of temperature controller and the detection temperature of thermoscope, and then the heat of heater to deuterium jar output is adjusted to accurate sensitively, reduces the temperature fluctuation of deuterium jar.
In addition, an overheat protection switch is also connected in series in the circuit loop of the heater. The overheat protection switch is arranged on the deuterium tank. The cut-off temperature of the overheat protection switch is set to the maximum value of the working temperature of the deuterium tank, once one of the temperature detector, the temperature controller or the heater breaks down to cause the heater to continuously heat the deuterium tank, and when the temperature of the deuterium tank exceeds the working temperature, the overheat protection switch cuts off a circuit loop of the heater, so that the heater is turned off.
To sum up, the utility model provides an optic fibre deuterium processing apparatus adopts the PWM voltage control unit and the thermoscope of temperature controller to realize the feedback regulation and the accurate regulation of deuterium jar temperature to combine the overheat protection of overheat protection switch realization deuterium jar temperature, avoid aforementioned temperature controller, thermoscope and heater because of the unable accurate control deuterium jar temperature of trouble.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an optical fiber deuterium processing apparatus according to an embodiment of the present invention.
The device comprises a deuterium tank 1, a deuterium tank 2, a heater 3, a temperature detector 4, a main cable 5, a control cabinet 6, an air inlet pipeline 7, an exhaust pipeline 8, a vacuum pump 9, a temperature controller 10, an overheating protection switch 11, a first valve 12, a second valve 13, a third valve 13 and a pressure sensor 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an optical fiber deuterium processing apparatus according to an embodiment of the present invention.
The utility model provides an optical fiber deuterium treatment device, which comprises a deuterium tank 1, a heater 2 arranged on the deuterium tank 1 and a temperature detector 3 arranged on the deuterium tank 1; the heater 2 and the temperature detector 3 are both connected with the temperature controller 9.
The heater 2 and the temperature detector 3 can be arranged in the deuterium tank 1 or can be attached to the outer wall of the deuterium tank 1.
The heater 2 includes, but is not limited to, heating means such as electric heating and infrared heating. The temperature controller 9 can be arranged in the control cabinet, and the control cabinet can also be provided with a display screen, an adjusting button or a knob and other structures. The heater 2 and the temperature detector 3 can be connected with a temperature controller 9 in the control cabinet 5 through a main cable 4. The heater 2, the temperature detector 3 and the temperature controller 9 can adopt related arrangements in the prior art.
The temperature controller 9 is provided with a PWM voltage control unit for adjusting the voltage pulse width of the heater 2 according to the set temperature and the detected temperature of the temperature detector 3. For example, the PWM voltage control unit inputs a rectangular pulse signal to the heater 2, and causes the voltage of the heater 2 to fluctuate in a variation trend corresponding to the rectangular pulse signal.
When the difference between the set temperature of the temperature controller 9 and the detected temperature of the temperature detector 3 is 0, it means that the current temperature of the deuterium tank 1 is equal to the set temperature of the temperature controller, and at this time, the PWM voltage control unit should maintain the current voltage pulse width of the heater 2 unchanged, so that the heater 2 continuously and constantly inputs a certain amount of heat to the deuterium tank 1, and the current temperature of the deuterium tank 1 is maintained. This is the first example.
When the difference between the set temperature of the thermostat 9 and the detected temperature of the temperature detector 3 is positive, it means that the temperature of the deuterium tank 1 is lower than the set temperature of the thermostat, and at this time, compared with the voltage pulse width of the heater 2 in the first example, the PWM voltage control unit should increase the voltage pulse width of the heater 2, that is, increase the duty ratio when the voltage value is positive in one period, and correspondingly shorten the duty ratio when the voltage value is 0 in one period, so as to increase the amount of heat transferred from the heater 2 to the deuterium tank 1.
When the difference between the set temperature of the thermostat 9 and the detected temperature of the temperature detector 3 is negative, it means that the temperature of the deuterium tank 1 is higher than the set temperature of the thermostat, and at this time, compared with the voltage pulse width of the heater 2 in the first example, the PWM voltage control means should reduce the width of the voltage pulse of the heater 2, i.e., reduce the ratio of the voltage value to a positive value in one period, and correspondingly increase the ratio of the voltage value to 0 in one period, so as to reduce the amount of heat transferred from the heater 2 to the deuterium tank 1.
It is thus clear that the utility model discloses a PWM voltage control unit of temperature controller 9 carries out voltage pulse width control to heater 2, and then controls the heat that heater 2 provided to deuterium jar 1 accurately, sensitively, dynamically, realizes the accurate control and the dynamic adjustment of deuterium jar 1 temperature, reduces deuterium jar 1's temperature fluctuation.
The utility model provides an optic fibre deuterium processing apparatus establishes ties at heater 2's circuit loop has overheat protection switch 10. The overheat protection switch 10 is provided to the deuterium tank 1. The cut-off temperature of the overheat protection switch 10 is set to the maximum value of the operating temperature of the deuterium tank 1, and once one of the temperature detector 3, the temperature controller 9 or the heater 2 fails to cause the heater 2 to continuously heat the deuterium tank 1 and the temperature of the deuterium tank 1 exceeds the operating temperature, the overheat protection switch 10 cuts off the circuit loop of the heater 2, thereby turning off the heater 2.
The overheat protection switch 10 may be disposed inside the deuterium tank 1, or may be disposed to be attached to the outer wall of the deuterium tank 1. In order to make the accurate operating temperature who acquires deuterium jar 1 of overheat protection switch 10, the utility model provides an in following embodiment, overheat protection switch 10 all sets up preferentially in deuterium jar 1.
To sum up, the utility model provides an optic fibre deuterium processing apparatus adopts the PWM voltage control unit of temperature controller 9 and the feedback regulation of 1 temperature of deuterium jar is realized to thermoscope 3, and PWM voltage control unit can be through the accurate, sensitive, the heat that dynamically adjusts heater 2 and provide to deuterium jar 1 of voltage pulse width of control heater 2, and then realizes the accurate control of deuterium jar 1 temperature. In addition, this optic fibre deuterium processing apparatus combines overheat protection switch 10 to realize the overheat protection of deuterium jar 1 temperature, avoids aforementioned temperature controller 9, thermoscope 3 and heater 2 can't accurate control deuterium jar 1 temperature because of the trouble. The utility model discloses utilize the feedback adjustment of thermoscope 3, temperature controller 9 and heater 2 to make deuterium jar 1's temperature can more accurate control, through overheat protection switch 10 automatic disconnection power when necessary, avoid the unnecessary loss because of equipment problem causes, improved the security reliability of equipment.
The following provides a further description of the optical fiber deuterium processing apparatus according to the present invention with reference to the accompanying drawings and embodiments.
On the basis of the above described embodiment, the heater 2 may be provided as a resistance wire heating belt. The resistance wire heating belt adopts the resistance heating principle, and its shape sets up to the banded, conveniently surrounds and is fixed in deuterium jar 1's lateral wall.
In order to fix the resistance wire heating belt conveniently and improve the heating uniformity of the deuterium tank 1, the length of the resistance wire heating belt is not less than the circumference of the deuterium tank 1, and the resistance wire heating belt is fixed to the deuterium tank 1 after surrounding the deuterium tank 1 for one circle. The width of the resistance wire heating tape is set according to the specific size of the deuterium can 1.
When the resistance wire heating belt is fixed on the outer wall of the deuterium tank 1, the resistance wire heating belt can be tightly attached to the outer wall of the deuterium tank 1 through interference fit.
The resistance wire heating belt can comprise an insulating rubber belt and a resistance wire fixed on the insulating rubber belt. The insulating rubber belt is soft and good in elasticity, and is convenient to be tightly attached to the side wall of the deuterium tank 1. The resistance wire can set up in insulating rubber area, can also laminate and be fixed in one side of insulating rubber area, makes things convenient for the opposite side of insulating rubber area to paste the lateral wall of tight deuterium jar 1.
The heating belt is connected with a temperature controller 9 through a cable. The heating tape raises the temperature inside the deuterium canister 1 by heating the canister body of the deuterium canister 1.
The utility model discloses the thermoscope 3 that adopts specifically can set up to the thermocouple. The thermocouple can the accurate temperature change who detects deuterium jar 1, and the cable by the thermocouple again with the signal transmission to temperature controller 9 of aforementioned temperature change, the power-on and power-off of temperature controller 9 according to the signal control heating band of thermocouple feedback to play the effect of heating deuterium jar 1 and cooling deuterium jar 1.
In order to bring the thermocouple into direct contact with the gas in the deuterium tank 1 as the object to be measured, the thermocouple is preferably provided inside the deuterium tank 1. Therefore, the lateral wall of the deuterium tank 1 is used as a thermocouple threading hole through which a cable of a thermocouple penetrates, and the thermocouple penetrates into the deuterium tank 1 from the thermocouple threading hole. Of course, in consideration of the air tightness of the deuterium tank 1, a thermocouple sealing heat insulation member is provided between the cable of the thermocouple inserted through the side wall of the deuterium tank 1 and the thermocouple threading hole.
The thermocouple sealing heat insulation piece can adopt a sealing and heat insulation rubber ring. The thermocouple sealing heat insulation piece plays a role in hermetically sealing the thermocouple threading hole, so that the deuterium tank 1 is prevented from generating gas exchange with the outside through the thermocouple threading hole; and secondly, the heat preservation and insulation effects are achieved, and the heat in the deuterium tank 1 is prevented from being conducted with the external heat.
Considering the electrical connection relationship between the heater 2 and the overheat protection switch 10 and the temperature detector 3, in this embodiment, the heater 2 is disposed in the deuterium tank 1. The lateral wall of the deuterium tank 1 is provided with a heater 2 threading hole for the cable of the heater 2 to pass through, and the cable of the heater 2 passes through the heater 2 threading hole and penetrates out of the deuterium tank 1. Also, a heater 2 sealing heat insulation member is provided between the threading hole of the heater 2 and the cable of the heater 2 for the airtightness and heat insulation of the deuterium tank 1.
On the basis of any one of the above embodiments, the deuterium tank 1 is provided with an air inlet hole and an air outlet hole; the air inlet is connected with an air inlet pipeline 6 for introducing deuterium gas into the deuterium tank 1; the air outlet is connected with a vacuum pump 8 and an exhaust valve.
The vacuum pump 8 is connected to the air outlet of the deuterium tank 1 through a gas pipeline. Before heating deuterium jar 1, bleed the air in deuterium jar 1 through vacuum pump 8, avoid carrying the hydrone because of remaining air in deuterium jar 1 to influence optic fibre deuterium processing procedure.
When the optical fiber is subjected to deuterium treatment, the optical fiber is firstly placed in the deuterium tank 1, and the vacuum pump 8 is enabled to pump air in the deuterium tank 1 until the deuterium tank 1 is in a vacuum state. Then, deuterium gas is filled into the deuterium tank 1 through the gas inlet pipeline 6, and the deuterium tank 1 is heated so as to realize optical fiber deuterium treatment. And finally, after the deuterium treatment is finished, the deuterium gas in the deuterium tank 1 is exhausted through an exhaust valve.
The air outlet is connected with a vacuum pipeline and an exhaust pipeline 7, and the vacuum pump 8 is connected with the vacuum pipeline through a first valve 11; a second valve 12 is connected to the exhaust line 7 for switching on and off the exhaust line 7. The inlet line 6 may also be provided with a third valve 13 to be switched on and off.
After the optical fiber is placed into the deuterium tank 1, the first valve 11 is opened, the vacuum pump 8 and the deuterium tank 1 are connected, and the gas in the deuterium tank 1 is pumped through the vacuum pump 8. Then, the first valve 11 is closed, the third valve 13 is opened, the air inlet pipe 6 and the deuterium tank 1 are connected, and deuterium gas is filled into the deuterium tank 1 through the air inlet pipe 6. When the pressure sensor 14 in the deuterium tank 1 detects that the air pressure in the deuterium tank 1 reaches a set pressure value, the third valve 13 is closed. Then, the deuterium tank 1 is heated by the heater 2, and during the heating, the first valve 11, the second valve 12, and the third valve 13 are all in the closed state. After the heating is completed, the second valve 12 is opened to discharge the deuterium gas in the deuterium tank 1 to the outside from the exhaust line 7.
The above is to the optical fiber deuterium processing apparatus provided by the present invention. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (9)
1. An optical fiber deuterium processing device is characterized by comprising a deuterium tank (1), a heater (2) and a temperature detector (3), wherein the heater (2) is arranged on the deuterium tank (1); the heater (2) and the temperature detector (3) are both connected with a temperature controller (9);
the temperature controller (9) is provided with a PWM voltage control unit which is used for adjusting the voltage pulse width of the heater (2) according to the set temperature and the detection temperature of the temperature detector (3);
the circuit loop of the heater (2) is connected in series with an overheat protection switch (10), and the overheat protection switch (10) is arranged in the deuterium tank (1) or attached to the outer wall of the deuterium tank (1).
2. Optical fiber deuterium treatment device according to claim 1, characterized in that said heater (2) is a resistive wire heating tape.
3. Optical fiber deuterium treatment device according to claim 2, characterized in that the resistance wire heating tape comprises an insulating rubber tape fixed to the deuterium canister (1) for bending deformation and a resistance wire fixed to the insulating rubber tape.
4. Optical fiber deuterium treatment device according to claim 3, characterized in that said heating tape is arranged close to the outer side wall of said deuterium canister (1).
5. Optical fiber deuterium treatment device according to claim 4, characterized in that said temperature detector (3) is embodied as a thermocouple; the thermocouple is arranged in the deuterium tank (1); the lateral wall of the deuterium tank (1) is provided with a thermocouple threading hole for the cable of the thermocouple to penetrate through, and a thermocouple sealing heat insulation piece is arranged between the thermocouple threading hole and the cable of the thermocouple.
6. Optical fiber deuterium treatment device according to claim 1, characterized in that said overtemperature protection switch (10) is arranged inside said deuterium canister (1).
7. Optical fiber deuterium treatment device according to claim 6, characterized in that said heater (2) is arranged inside said deuterium canister (1); the side wall of the deuterium tank (1) is provided with a heater threading hole for a cable of the heater (2) to pass through; and a heater sealing heat insulation piece is arranged between the heater threading hole and the cable of the heater (2).
8. Optical fiber deuterium treatment device according to any of claims 1 to 7, characterized in that the deuterium canister (1) is provided with an inlet hole and an outlet hole; the air inlet is connected with an air inlet pipeline (6) used for introducing deuterium gas into the deuterium tank (1); the air outlet is connected with a vacuum pump (8) and an exhaust valve (12); the air outlet hole discharges air to the outside through the exhaust valve (12).
9. Optical fiber deuterium treatment device according to claim 8, characterized in that said air outlet is connected with a vacuum line and an exhaust line (7); the vacuum pump (8) is connected to the vacuum pipeline through a stop valve; the exhaust valve (12) is connected to the exhaust line (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497155.8U CN213113096U (en) | 2020-07-24 | 2020-07-24 | Optical fiber deuterium treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497155.8U CN213113096U (en) | 2020-07-24 | 2020-07-24 | Optical fiber deuterium treatment device |
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| Publication Number | Publication Date |
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| CN213113096U true CN213113096U (en) | 2021-05-04 |
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| CN202021497155.8U Active CN213113096U (en) | 2020-07-24 | 2020-07-24 | Optical fiber deuterium treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754320A (en) * | 2021-09-02 | 2021-12-07 | 富通集团（嘉善）通信技术有限公司 | Equipment for deuterium treatment of optical fiber |
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2020
- 2020-07-24 CN CN202021497155.8U patent/CN213113096U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754320A (en) * | 2021-09-02 | 2021-12-07 | 富通集团（嘉善）通信技术有限公司 | Equipment for deuterium treatment of optical fiber |
| CN113754320B (en) * | 2021-09-02 | 2022-12-27 | 富通集团（嘉善）通信技术有限公司 | Equipment for deuterium treatment of optical fiber |
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