CN211445042U - Closed-loop control heating system of decomposing furnace - Google Patents
Closed-loop control heating system of decomposing furnace Download PDFInfo
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- CN211445042U CN211445042U CN201922097513.XU CN201922097513U CN211445042U CN 211445042 U CN211445042 U CN 211445042U CN 201922097513 U CN201922097513 U CN 201922097513U CN 211445042 U CN211445042 U CN 211445042U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The utility model relates to a closed-loop control heating system of a decomposing furnace, which comprises a furnace body and a control module; the furnace body comprises a shell, a heating element connected with the shell and a furnace pipe arranged in the shell; the furnace pipe is provided with an air inlet pipe and an air outlet pipe; the control module comprises a detector connected with the air outlet pipe, a converter connected with the detector, a middle control connected with the detector and an adjuster connected with the middle control; the detector is used for detecting the gas content in the gas outlet pipe; the regulator is correspondingly connected with the heating element and is used for regulating the heating power of the heating element. Above-mentioned decomposing furnace closed-loop control system of heating detects the gas content in the outlet pipe through setting up the detector to give well controlling part in the transmission, control the heating power of heating member through well controlling part again, guarantee directly to control the heating member through detecting gas content, realize closed-loop control simultaneously, effectual ammonia content carries out direct detection control after the schizolysis, improves control accuracy.
Description
Technical Field
The utility model relates to a glass processing technology field especially relates to a decomposing furnace closed-loop control heating system.
Background
In the glass processing process, the protective gas of hydrogen and nitrogen is required to be introduced into the tin bath to ensure the purity of tin liquid and the stable operation of the production of the tin bath, so that the purity of the protective gas plays an important role in the glass processing process.
The existing protective gas of hydrogen and nitrogen is mainly used for heating and cracking ammonia water through a decomposing furnace, and then hydrogen and nitrogen which are obtained by cracking ammonia are used as protective gas to be introduced into a tin bath; however, when the mixed gas of hydrogen and nitrogen is generated by cracking in the existing decomposing furnace, part of ammonia is not cracked, so the ammonia content in the cracked gas directly influences the processing quality of glass. The existing control mode is to control the cracking temperature of the decomposing furnace to be eight hundred to eight hundred fifty degrees centigrade, and indirectly ensure the cracking of ammonia in the range of eight hundred to eight hundred fifty degrees centigrade by controlling the cracking temperature, but because the control mode detects and controls the working temperature, the ammonia content in cracked gas can not be directly ensured, the control precision is poor, and the processing quality of glass is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a closed-loop control heating system for a decomposing furnace, which aims at the problem of poor control accuracy of the ammonia content in the cracked gas in the decomposing furnace.
A decomposition furnace closed-loop control heating system comprises:
the furnace body comprises a shell, a heating element connected with the shell and a furnace pipe arranged in the shell; the furnace pipe is provided with an air inlet pipe and an air outlet pipe;
the control module is connected with the furnace body; the control module comprises a detector connected with the air outlet pipe, a converter connected with the detector, a middle control connected with the detector, and an adjuster connected with the middle control; the detector is used for detecting the gas content in the gas outlet pipe; the regulator is correspondingly connected with the heating element and is used for regulating the heating power of the heating element.
Above-mentioned decomposing furnace closed-loop control system of heating detects the gas content in giving vent to anger through setting up the detector, the rethread converter converts the information that detects into the signal of telecommunication, and correspond and transmit well controlling part, the heating power of heating member is controlled through well controlling part control regulator again, guarantee to directly control the heating member through detecting gas content, and then the operating temperature of control stove courage, realize closed-loop control simultaneously, effectual ammonia content carries out direct detection control after the schizolysis, improve control accuracy.
In one embodiment, the detector comprises a bottom shell, an air chamber connected with the bottom shell, an infrared light source part and a detection chamber which are respectively arranged at two ends of the air chamber, and a signal analysis plate electrically connected with the detection chamber; the air chamber is correspondingly connected with the air outlet pipe.
In one embodiment, a partition plate is arranged in the bottom shell, and a first chamber and a second chamber are respectively arranged on two sides of the partition plate; the air chamber, the infrared light source and the detection chamber are arranged in the first cavity, and the signal analysis plate is arranged in the second cavity.
In one embodiment, a temperature detecting piece is arranged on the shell of the furnace body, and the temperature detecting piece is electrically connected with the middle control piece.
In one embodiment, the temperature detector is a temperature sensor.
In one embodiment, the furnace comprises a base communicated with the air inlet pipe, a cracking pipe communicated with the base, and a top seat communicated with the cracking pipe; the top seat is communicated with the air outlet pipe.
In one embodiment, the base and the top seat are arranged at two ends of the cracking tube in parallel.
In one embodiment, the cracking tubes are arranged in a hollow round tube structure, at least two cracking tubes are arranged, and each cracking tube is arranged around the outer sides of the base and the top seat.
In one embodiment, the air outlet pipe is provided with a cooling piece, and the cooling piece is sleeved outside the air outlet pipe in a hollow structure; the cooling part is provided with a cold water pipe and a circulating pipe which are correspondingly communicated with the inside of the cooling part.
In one embodiment, the heating elements are arranged around the outer side of the furnace, the number of the heating elements is at least two, and the heating elements are arranged at intervals along the direction of the furnace.
Drawings
Fig. 1 is a block diagram of a closed-loop control heating system of a decomposing furnace according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the furnace body shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the furnace body of FIG. 2;
FIG. 4 is a schematic structural view of the furnace of FIG. 4;
fig. 5 is a schematic structural view of the detector shown in fig. 1.
The reference numbers in the drawings have the meanings given below:
100-a decomposing furnace closed-loop control heating system;
10-furnace body, 11-outer shell, 12-heating element, 13-furnace pipe, 131-base, 132-cracking tube, 133-top base, 14-air inlet tube, 15-air outlet tube, 16-cooling element, 17-cold water tube and 18-circulating tube;
20-control module, 30-detector, 31-bottom shell, 310-partition, 315-first chamber, 316-second chamber, 319-flowmeter, 32-gas chamber, 33-infrared light source, 34-detection chamber, 35-signal analysis board, 40-converter, 50-middle control, 60-regulator;
70-temperature detecting element.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 to 5, a decomposition furnace closed-loop control heating system 100 according to an embodiment of the present invention includes a furnace body 10 and a control module 20 connected to the furnace body 10; the closed-loop control heating system 100 for the decomposing furnace performs closed-loop control on the working state of the furnace body 10 through the control module 20, improves the precision control of ammonia cracking in the furnace body 10, and ensures that ammonia is fully cracked into hydrogen and nitrogen.
The furnace body 10 is correspondingly arranged along the vertical direction; the furnace body 10 includes a casing 11, a heating member 12 connected to the casing 11, and a furnace pipe 13 provided in the casing 11. The shell 11 is hollow cylindrical and is arranged along the vertical direction, the shell 11 is used for accommodating a heating element 12 and a furnace pipe 13, and the inside of the shell 11 is approximately arranged in a closed structure so as to ensure the heating efficiency and effectively reduce the heat dissipation rate; the heating element 12 is arranged on the inner side of the shell 11 in a circular ring shape, the heating element 12 is arranged along the horizontal direction, the heating element 12 is correspondingly arranged on the outer side of the furnace pipe 13 in a surrounding mode, and the heating element 12 is used for heating the furnace pipe 13. In this embodiment, the heating element 12 is a heating wire, and when the heating element 12 is powered on, heat can be generated correspondingly, and the heating power of the heating element 12 can be adjusted correspondingly by adjusting the voltage applied to the heating element 12; the heating members 12 are provided in at least two numbers, and the heating members 12 are arranged at intervals along the inner side wall of the casing 11.
The furnace pipe 13 is arranged at the inner side of the heating element 12 along the vertical direction, and the furnace pipe 13 is used for providing a reaction space for cracking ammonia into hydrogen and nitrogen; be provided with intake pipe 14 and outlet duct 15 on this stove courage 13, this outlet duct 15 corresponds with intake pipe 14 and is linked together with stove courage 13 is inside, this intake pipe 14 is the setting of cavity pipe form, the one end of intake pipe 14 corresponds and is connected with external ammonia gas source, the ammonia passes through in intake pipe 14 gets into stove courage 13, this outlet duct 15 is the setting of cavity pipe form structure, the one end of outlet duct 15 corresponds and is connected with external gas mixture buffer tank, use for subsequent manufacturing procedure. In this embodiment, the furnace 13 is disposed at the center of the housing 11, and the heating members 12 are disposed at intervals along the furnace 13. Further, the air outlet pipe 15 is provided with a cooling piece 16; the cooling piece 16 is sleeved on the outer side of the air outlet pipe 15 in a hollow structure, and the cooling piece 16 is used for cooling the air outlet pipe 15 so as to reduce the temperature of the hydrogen and the nitrogen which are cracked; the cooling part 16 is provided with a cold water pipe 17 and a circulating pipe 18, the cold water pipe 17 is arranged in a hollow round tubular structure, the cold water pipe 17 is correspondingly communicated with the inside of the cooling part 16, the circulating pipe 18 is arranged in a hollow round tubular structure, the circulating pipe 18 is correspondingly communicated with the inside of the cooling part 16, the cold water pipe 17 is used for introducing cooling water into the cooling part 16, the circulating pipe 18 is used for discharging the cooling water absorbing the heat of the air outlet pipe 15 out of the cooling part 16, the cold water pipe 17 and the circulating pipe 18 form a closed loop to further ensure the circulation of the cooling water, the cold water pipe 17 is correspondingly arranged on one side of the circulating pipe 18 far away from the furnace pipe 13, so that the flowing direction of the cooling water is opposite to the flowing direction of the gas in the air outlet pipe 15, and the.
The furnace pipe 13 comprises a base 131 communicated with the air inlet pipe 14, a cracking pipe 132 communicated with the base 131, and a top seat 133 connected with the cracking pipe 132; the base 131 is arranged at the bottom of the furnace pipe 13, the base 131 is roughly in the shape of a hollow circular plate and is arranged along the horizontal direction, and the air inlet pipe 14 correspondingly introduces external ammonia gas into the base 131; the cracking tube 132 is arranged in a hollow round tubular structure, the cracking tube 132 is arranged along the vertical direction, and the bottom end of the cracking tube 132 is correspondingly communicated with the base 131; the top seat 133 is disposed on the top of the furnace pipe 13, the top seat 133 is substantially hollow and disc-shaped and is disposed along the horizontal direction, the top seat 133 is correspondingly communicated with the gas outlet pipe 15, and the top seat 133 is communicated with the top end of the cracking pipe 132. In this embodiment, this base 131 is the both ends that the column structure set up at pyrolysis tube 132 with footstock 133 side by side, this pyrolysis tube 132 is provided with at least two, each pyrolysis tube 132 encircles the outside that sets up at base 131 and footstock 133, intake pipe 14 lets in the base 131 with the ammonia, the ammonia passes through base 131 and gets into pyrolysis tube 132, the ammonia is schizolysis in pyrolysis tube 132, the gas mixture after the schizolysis passes through pyrolysis tube 132 and gets into in the footstock 133, and then carry the gas mixture to external gas mixture buffer tank in order to supply subsequent processing to use through the outlet duct 15 with footstock 133 intercommunication.
The control module 20 is correspondingly connected with the furnace body 10, and the control module 20 is used for controlling the working state of the heating element 12 so as to ensure the cracking degree of ammonia; the control module 20 includes a detector 30 connected to the outlet duct 15, a converter 40 connected to the detector 30, a control 50 connected to the detector 30, and an adjuster 60 connected to the control 50. The detector 30 is communicated with the gas outlet pipe 15, so that the cracked mixed gas in the gas outlet pipe 15 is introduced into the detector 30, and the detector 30 is used for detecting the gas content in the gas outlet pipe 15.
The detector 30 comprises a bottom shell 31, an air chamber 32 connected with the bottom shell 31, an infrared light source 33 and a detection chamber 34 respectively arranged at two ends of the air chamber 32, and a signal analysis plate 35 electrically connected with the detection chamber 34; the bottom shell 31 is arranged in a hollow rectangular structure, the bottom shell 31 is used for being installed outside the detector 30, and the bottom shell 31 is used for being installed outside the detector 30 to protect the detector 30; the air chamber 32 is cylindrical and is arranged in the bottom shell 31 along the horizontal direction, the air inlet pipe 14 is correspondingly communicated with the air chamber 32, and the mixed air in the air inlet pipe 14 is correspondingly introduced into the air chamber 32; the infrared light source 33 is cylindrically arranged at one end of the gas chamber 32, the infrared light source 33 is used for generating an infrared light source, and the infrared light source correspondingly penetrates through the mixed gas in the gas chamber 32; the detection chamber 34 is arranged in a cylindrical shape at one end of the air chamber 32 opposite to the infrared light source element 33, the detection chamber 34 is used for receiving the infrared light source passing through the air chamber 32, and by utilizing the principle that the gas can absorb the infrared radiation with a specific wavelength, and the absorption degree is related to the gas concentration, the detection chamber 34 correspondingly detects the concentration of the specific gas of the mixed gas in the air chamber 32 by detecting the specific wavelength of the infrared light source; the signal analysis plate 35 is correspondingly electrically connected with the detection chamber 34, the signal analysis plate 35 is used for identifying a detection signal of the detection chamber 34 for infrared radiation with a specific wavelength, and the signal analysis plate 35 correspondingly measures gas so as to convert the infrared radiation signal detected by the detection chamber 34 into the concentration content of specific gas in the mixed gas. In this embodiment, the detection chamber 34 is used for detecting the ammonia gas by absorbing infrared radiation with a specific wavelength, and further, the ammonia gas content in the mixed gas is calculated by the signal analysis board 35.
Further, a partition plate 310 is arranged in the bottom shell 31, the partition plate 310 is in a rectangular straight plate shape and is arranged along the vertical direction, a first cavity 315 and a second cavity 316 are respectively arranged on two sides of the partition plate 310, the air chamber 32, the infrared light source 33 and the detection chamber 34 are arranged in the first cavity 315, the signal analysis plate 35 is in a rectangular straight plate shape and is arranged in the second cavity 316, the arrangement direction of the signal analysis plate 35 is the same as that of the partition plate 310, the partition plate 310 divides the signal analysis plate into the first cavity 315 and the second cavity 316, the influence of heat generated when the signal analysis plate 35 works on gas in the air chamber 32 is reduced, and the detection precision of the detection chamber 34 is improved. Further, a flow meter 319 is disposed on the bottom shell 31, the flow meter 319 is correspondingly communicated with the air outlet pipe 15, and the flow meter 319 is used for detecting the flow rate of the mixture gas entering the air chamber 32 from the air pipe 15.
The converter 40 is correspondingly connected with the signal analysis board 35 of the detector 30, the converter 40 is used for converting the ammonia gas content calculated by the signal analysis board 35 into a signal which can be identified by the central control 50, and then the converter 40 transmits the ammonia gas content detected by the signal analysis board 35 to the central control 50; the middle control 50 is used for correspondingly controlling the regulator 60 after identifying the ammonia gas content, the regulator 60 is correspondingly connected with the heating element 12, the regulator 60 is used for adjusting the heating power of the heating element 12, and correspondingly, when the ammonia gas content is higher than a set value, the middle control 50 controls the regulator 60 to increase the power of the heating element 12, so that the temperature in the furnace pipe 13 is increased, and the cracking degree of the ammonia gas is improved; when the ammonia content is lower than the set value, the middle control 50 controls the regulator 60 to correspondingly reduce the working power of the heating element 12, so that the heat transmitted to the furnace pipe 13 is reduced, the energy is saved, the heating power of the heating element 12 is directly controlled in a closed loop mode by detecting the ammonia content of the gas in the gas pipe 15, the cracking degree is guaranteed, and the product quality of subsequent glass processing is guaranteed. In this embodiment, a temperature detector 70 is disposed on the outer shell 11 of the furnace body 10, the temperature detector 70 is electrically connected to the central control 50, one end of the temperature detector 70 is correspondingly inserted into the outer shell 11, the temperature detector 70 is used for detecting the working temperature of the furnace pipe 13 in the outer shell 11, the temperature detector 70 is a temperature sensor, the temperature detector 70 transmits the temperature of the working environment of the furnace pipe 13 to the central control 50, the temperature detector 70 effectively prevents the working temperature of the furnace pipe 13 from being too high or too low, and the cracking degree in the furnace pipe 13 is improved by controlling the temperature detector 70 and the detector 30 at the same time.
Above-mentioned decomposing furnace closed-loop control system of heating 100, detect gas content in outlet duct 15 through setting up detector 30, the information conversion that rethread converter 40 will detect is the signal of telecommunication, and correspond and transmit well controlling part 50, the heating power of heating member 12 is controlled through well controlling part 50 control regulator 60 again, guarantee to directly control heating member 12 through detecting gas content, and then control furnace 13's operating temperature, realize closed-loop control simultaneously, effectual ammonia content carries out direct detection control after the schizolysis, and the control precision is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A closed-loop control heating system of a decomposing furnace is characterized by comprising:
the furnace body comprises a shell, a heating element connected with the shell and a furnace pipe arranged in the shell; the furnace pipe is provided with an air inlet pipe and an air outlet pipe; and
the control module is connected with the furnace body; the control module comprises a detector connected with the air outlet pipe, a converter connected with the detector, a middle control connected with the detector, and an adjuster connected with the middle control; the detector is used for detecting the gas content in the gas outlet pipe; the regulator is correspondingly connected with the heating element and is used for regulating the heating power of the heating element.
2. The closed-loop control heating system of decomposition furnace according to claim 1, wherein the detector comprises a bottom case, an air chamber connected with the bottom case, an infrared light source and a detection chamber respectively arranged at two ends of the air chamber, and a signal analysis plate electrically connected with the detection chamber; the air chamber is correspondingly connected with the air outlet pipe.
3. The closed-loop control heating system of the decomposing furnace according to claim 2, wherein a partition plate is arranged in the bottom shell, and a first chamber and a second chamber are respectively arranged on two sides of the partition plate; the air chamber, the infrared light source and the detection chamber are arranged in the first cavity, and the signal analysis plate is arranged in the second cavity.
4. The closed-loop control heating system of the decomposing furnace according to claim 1, wherein a temperature detecting piece is arranged on the outer shell of the furnace body, and the temperature detecting piece is electrically connected with the middle control piece.
5. The closed-loop controlled warming system of a decomposition furnace according to claim 4, wherein the temperature detector is a temperature sensor.
6. The closed-loop control heating system of the decomposing furnace as claimed in claim 1, wherein the furnace comprises a base communicated with the gas inlet pipe, a cracking pipe communicated with the base, and a top seat communicated with the cracking pipe; the top seat is communicated with the air outlet pipe.
7. The closed-loop controlled heating system of claim 6, wherein the base and the top seat are arranged in parallel at two ends of the cracking tube.
8. The closed-loop control heating system of claim 7, wherein the cracking tubes are arranged in a hollow round tube structure, at least two cracking tubes are arranged, and each cracking tube is arranged around the outer sides of the base and the top seat.
9. The closed-loop control heating system of the decomposing furnace according to any one of claims 1 to 8, wherein a cooling piece is arranged on the gas outlet pipe, and the cooling piece is sleeved outside the gas outlet pipe in a hollow structure; the cooling part is provided with a cold water pipe and a circulating pipe which are correspondingly communicated with the inside of the cooling part.
10. The closed-loop control heating system of the decomposing furnace according to any one of claims 1 to 8, characterized in that the heating elements are arranged around the outside of the furnace, at least two heating elements are arranged, and the heating elements are arranged at intervals along the direction of the furnace.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922097513.XU CN211445042U (en) | 2019-11-27 | 2019-11-27 | Closed-loop control heating system of decomposing furnace |
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| CN201922097513.XU CN211445042U (en) | 2019-11-27 | 2019-11-27 | Closed-loop control heating system of decomposing furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790221A (en) * | 2019-11-27 | 2020-02-14 | 清远南玻节能新材料有限公司 | Closed-loop control heating system of decomposing furnace |
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- 2019-11-27 CN CN201922097513.XU patent/CN211445042U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790221A (en) * | 2019-11-27 | 2020-02-14 | 清远南玻节能新材料有限公司 | Closed-loop control heating system of decomposing furnace |
| CN110790221B (en) * | 2019-11-27 | 2024-07-19 | 清远南玻节能新材料有限公司 | Closed-loop control heating system of decomposing furnace |
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