CN217323844U - Oxygen supply device for glass melting furnace - Google Patents
Oxygen supply device for glass melting furnace Download PDFInfo
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- CN217323844U CN217323844U CN202221224484.4U CN202221224484U CN217323844U CN 217323844 U CN217323844 U CN 217323844U CN 202221224484 U CN202221224484 U CN 202221224484U CN 217323844 U CN217323844 U CN 217323844U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
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Abstract
The utility model relates to an oxygen feeding mechanism that glass melting furnace was used, main heat exchanger, air transportation that carry out the heat exchange including the gas among the confession air-separating device are responsible for and the rectifying column, the rectifying column include tower, lower tower and main condensation evaporimeter, main condensation evaporimeter on be equipped with liquid oxygen and carry the person in charge, liquid oxygen carries the end of being responsible for to be equipped with liquid oxygen evaporimeter, be equipped with the oxygen conveyer pipe on liquid oxygen evaporimeter and the main heat exchanger, the part that the air transportation was responsible for is installed on main heat exchanger, the air transportation between the inlet end that the air transportation was responsible for and the main heat exchanger is responsible for and is equipped with the compressor, the giving vent to anger of air transportation person in charge is served and is equipped with turbo expander, is linked together through low pressure air transportation pipe between turbo expander and the last tower, oxygen conveyer pipe is responsible for and is equipped with vice heat exchanger with air transportation. The electric energy required by oxygen heating is reduced. The utility model discloses adjust, convenient to use, have extensive market prospect.
Description
Technical Field
The utility model relates to an oxygen supply equipment field that glass melting furnace was used, concretely relates to oxygen supply device that glass melting furnace was used.
Background
Glass melting furnaces are generally equipped with burners using fossil fuel and air. Such energy sources are chosen for economic reasons in view of the large energy consumption. As an indication, conventional furnaces producing between 600 and 900 tons of glass per day require about 50 to 80 megawatts of available power. The use of these furnaces not only leads to a considerable energy consumption, but also to a very considerable emission of combustion-generated gases (hereinafter "combustion gases").
The air that is used for combustion-supporting at present usually adopts the oxygen-enriched air, the output of oxygen-enriched air relies on the high-purity oxygen of air separation plant fractionation usually, high-purity oxygen is lower from air separation system transport back normal temperature, conventional means adopts electric heater directly to heat oxygen to preset temperature back again with compressed air mixture formation oxygen-enriched air and carry for the glass smelting pot, the process that oxygen was heated during needs a large amount of heats, this is just caused power consumptive serious, increase enterprise's operating cost, it is unfavorable with marketing.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides an oxygen supply device for a glass melting furnace, which can reduce the electric energy required by oxygen heating, and is used for overcoming the defects in the prior art.
The utility model adopts the technical proposal that: an oxygen supply device for a glass melting furnace comprises a main heat exchanger for heat exchange of gas in an air supply device, an air conveying main pipe and a rectifying tower, the rectifying tower comprises an upper tower, a lower tower and a main condensation evaporator, wherein the main condensation evaporator is provided with a liquid oxygen conveying main pipe, the tail end of the liquid oxygen conveying main pipe is provided with a liquid oxygen evaporator, oxygen conveying pipes are arranged on the liquid oxygen evaporator and the main heat exchanger, the part of the air conveying main pipe is installed on the main heat exchanger, the air conveying main pipe between the air inlet end of the air conveying main pipe and the main heat exchanger is provided with a compressor, the air outlet end of the air conveying main pipe is provided with a turbine expander, the turbine expander and the upper tower are communicated through a low-pressure air conveying pipe, and the main heat exchanger is provided with an auxiliary heat exchanger on the oxygen conveying pipe far away from one side of the liquid oxygen evaporator and the air conveying main pipe between the compressor and the main heat exchanger.
Preferably, the liquid oxygen evaporator is located below the main condensation evaporator, the liquid oxygen evaporator comprises an evaporator heat source inlet end, an evaporator heat source outlet end, an evaporator cold source inlet end and an evaporator cold source outlet end, the evaporator cold source outlet end is communicated with the oxygen conveying pipe, the evaporator cold source inlet end is communicated with the liquid oxygen conveying main pipe, the evaporator heat source inlet end and the main heat exchanger are provided with air conveying branch pipes, the air conveying main pipe between the air inlet ends of the compressor and the air conveying main pipe is communicated with the air inlet ends of the air conveying branch pipes, and the evaporator heat source outlet end is communicated with the lower tower through a high-pressure air conveying pipe.
Preferably, a liquid oxygen storage tank is arranged below the main condensation evaporator, and the liquid oxygen storage tank is communicated with the liquid oxygen delivery main pipe through a liquid oxygen delivery branch pipe.
Preferably, a temperature sensor is arranged on the oxygen conveying pipe between the air outlet end of the oxygen conveying pipe and the auxiliary heat exchanger, and an electric heater is arranged on the oxygen conveying pipe between the temperature sensor and the auxiliary heat exchanger.
Preferably, a first regulating valve and a first flow sensor are arranged on the air conveying branch pipe between the air conveying main pipe and the main heat exchanger, and a second regulating valve and a second flow sensor are arranged on the air conveying main pipe between the air conveying branch pipe and the compressor.
Preferably, the liquid oxygen delivery branch pipe is provided with a third regulating valve and a third flow sensor, and the liquid oxygen delivery main pipe between the liquid oxygen delivery branch pipe and the liquid oxygen evaporator is provided with a fourth regulating valve and a fourth flow sensor.
Preferably, the upper tower and the main heat exchanger are provided with waste nitrogen conveying pipes, and subcoolers are arranged on the waste nitrogen conveying pipes and the liquid oxygen conveying branch pipes between the upper tower and the main heat exchanger.
The utility model has the advantages that: at first, the utility model discloses the product utilizes the compressor to pressurize once more and comes from the partly air of molecular sieve system and utilize behind the pressurization compressed air and low temperature oxygen to carry out the heat exchange, thereby reduce the electric energy that oxygen heating consumed, and the compressed air that is heaied up after the compressor pressurization is by low temperature oxygen cooling back, loop through main heat exchanger and turboexpander again and can obtain the compressed air of lower temperature and then let in the rectification process that the lower column participated in the lower column, reduced the energy consumption of lower column rectification process.
Secondly, oxygen conveyer pipe give vent to anger and be provided with temperature sensor on the oxygen conveyer pipe between end and the vice heat exchanger of oxygen conveyer pipe, the feedback of being convenient for is used for carrying the temperature for glass smelting pot oxygen.
Finally, the utility model discloses be provided with the level gauge on the liquid oxygen storage tank, be convenient for feed back the liquid level height in the liquid oxygen storage tank.
The utility model has the advantages of simple structure, convenient operation, design benefit has improved work efficiency greatly, has fine social and economic benefits, is the product of easily using widely.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic view of detail a of fig. 1.
Detailed Description
As shown in fig. 1 and 2, an oxygen supply device for a glass melting furnace comprises a main heat exchanger 1 for heat exchange of gas in an air supply device, an air delivery main pipe 2, a rectifying tower and a system cold box 30, wherein the rectifying tower comprises an upper tower 3, a lower tower 4 and a main condensation evaporator 5, the main condensation evaporator 5 is provided with a liquid oxygen delivery main pipe 6, the tail end of the liquid oxygen delivery main pipe 6 is provided with a liquid oxygen evaporator 7, the liquid oxygen evaporator 7 and the main heat exchanger 1 are provided with an oxygen delivery pipe 8, part of the air delivery main pipe 2 is arranged on the main heat exchanger 1, the air delivery main pipe 2 between the air inlet end of the air delivery main pipe 2 and the main heat exchanger 1 is provided with a compressor 9, the air outlet end of the air delivery main pipe 2 is provided with a turbine expander 10, the turbine expander 10 is communicated with the upper tower 3 through a low-pressure air delivery pipe 11, an auxiliary heat exchanger 12 is arranged on an oxygen conveying pipe 8 at one side of the main heat exchanger 1 far away from the liquid oxygen evaporator 7 and an air conveying main pipe 2 between the compressor 9 and the main heat exchanger 1. A temperature sensor 18 is arranged on the oxygen conveying pipe 8 between the air outlet end of the oxygen conveying pipe 8 and the auxiliary heat exchanger 12, and an electric heater 19 is arranged on the oxygen conveying pipe 8 between the temperature sensor 18 and the auxiliary heat exchanger 12.
In order to reduce the energy required by liquid oxygen delivery, the liquid oxygen evaporator 7 of the product is positioned below the main condensation evaporator 5, and the liquid oxygen can be delivered by fully utilizing the self gravity of the liquid oxygen when the liquid oxygen is delivered to the liquid oxygen evaporator 7 by a liquid oxygen channel in the main condensation evaporator 5, so that the energy consumption is saved; liquid oxygen evaporator 7 include evaporimeter heat source entrance point, evaporimeter heat source exit end, evaporimeter cold source entrance point and evaporimeter cold source exit end, evaporimeter cold source exit end and oxygen conveyer pipe 8 be linked together, evaporimeter cold source entrance point and liquid oxygen transport be responsible for 6 and be linked together, evaporimeter heat source entrance point and main heat exchanger 1 on be provided with air transport branch pipe 13, the air transport between the inlet end of compressor 9 and air transport person in charge 2 is responsible for 2 and is linked together with the inlet end of air transport branch pipe 13, evaporimeter heat source exit end and lower tower 4 be linked together through highly-compressed air conveyer pipe 14.
A first adjusting valve 20 and a first flow sensor 21 are arranged on the air delivery branch pipe 13 between the air delivery main pipe 2 and the main heat exchanger 1, and a second adjusting valve 22 and a second flow sensor 23 are arranged on the air delivery main pipe 2 between the air delivery branch pipe 13 and the compressor 9. The process control of the rectifying tower can be facilitated by installing the first regulating valve 20 in the air delivery branch pipe 13 and the second regulating valve 22 in the air delivery main pipe 2 to regulate the amount of air delivered through the air delivery branch pipe 13 and the air delivery main pipe 2. And a first flow sensor 21 of the present product is installed on the air delivery branch 13 between the first regulating valve 20 and the main heat exchanger 1; the second flow sensor 23 is mounted on the main air delivery pipe 2 between the second regulating valve 22 and the compressor 9; it is more convenient to feed back the opening degrees of the second regulating valve 22 and the first regulating valve 20 in accordance with the values fed back by the second flow sensor 23 and the first flow sensor 21. The second flow sensor 23 and the first flow sensor 21 are both gas flow sensors.
And a liquid oxygen storage tank 15 is arranged below the main condensation evaporator 5, and the liquid oxygen storage tank 15 is communicated with the liquid oxygen delivery main pipe 6 through a liquid oxygen delivery branch pipe 17. The liquid oxygen conveying branch pipe 17 is provided with a third regulating valve 24 and a third flow sensor 25, and the liquid oxygen conveying main pipe 6 between the liquid oxygen conveying branch pipe 17 and the liquid oxygen evaporator 7 is provided with a fourth regulating valve 26 and a fourth flow sensor 27. The third regulating valve 24 and the fourth regulating valve 26 are arranged on the liquid oxygen conveying branch pipe 17 and the liquid oxygen conveying main pipe 6, so that the technical requirement of simultaneously conveying liquid oxygen to the cold source channels of the liquid oxygen storage tank 15 and the liquid oxygen evaporator 7 is met, and the opening degrees of the third regulating valve 24 and the fourth regulating valve 26 can be reasonably regulated according to the numerical values fed back by the third flow sensor 25 and the fourth flow sensor 27. The third flow sensor 25 and the fourth flow sensor 27 are both liquid flow sensors.
The number of the liquid oxygen storage tanks 15 is a plurality, and the tops of the liquid oxygen storage tanks 15 are respectively communicated with the liquid oxygen conveying branch pipes 17; a plurality of liquid oxygen storage tank 15 is divided equally and is provided with level gauge 16 respectively, and the outside of a plurality of liquid oxygen storage tank 15 is provided with storage tank cold box 31, is provided with the heat preservation in the storage tank cold box 31 inner chamber in the 15 outsides of a plurality of liquid oxygen storage tank, the heat preservation adopt the pearlite sand. The upper tower 3 and the main heat exchanger 1 are provided with a waste nitrogen delivery pipe 28, and a subcooler 29 is arranged on the waste nitrogen delivery pipe 28 and the liquid oxygen delivery branch pipe 17 between the upper tower 3 and the main heat exchanger 1. The temperature of the liquid oxygen delivered to the liquid oxygen storage tank 15 is further reduced by utilizing the heat exchange between the sewage nitrogen delivered by the sewage nitrogen delivery pipe 28 and the liquid oxygen delivered by the liquid oxygen delivery branch pipe 17, so that the time for safely storing the liquid oxygen in the liquid oxygen storage tank 15 is prolonged.
The use method of the product is as follows: as shown in fig. 1 and 2, a part of the compressed air delivered from the molecular sieve system is pressurized again by the compressor 9 through the main air delivery pipe 2, the temperature of the pressurized compressed air rises, then the pressurized compressed air is subjected to heat exchange with the low-temperature oxygen delivered to the cold source channel of the auxiliary heat exchanger 12 through the heat source channel of the auxiliary heat exchanger 12 and the low-temperature oxygen delivered to the cold source channel of the auxiliary heat exchanger 12 through the oxygen delivery pipe 8, the temperature of the compressed air passing through the heat source channel of the auxiliary heat exchanger 12 is reduced, then the compressed air passes through the main heat exchanger 1 and the turbo expander 10 in sequence, the pressure is reduced after passing through the turbo expander 10, the temperature is reduced, and the compressed air is delivered to the upper tower 3 of the rectifying tower through the low-pressure air delivery pipe 11 to be subjected to rectification of the upper tower 3.
The other part of the compressed air conveyed from the molecular sieve system enters a heat source channel of the liquid oxygen evaporator 7 and liquid oxygen in a cold source channel of the liquid oxygen evaporator 7 through the main air conveying pipe 2, the air conveying branch pipe 13 and the main heat exchanger 1 in sequence to carry out heat exchange, the temperature of the compressed air passing through the heat source channel of the liquid oxygen evaporator 7 is reduced, and then the compressed air is conveyed to the lower tower 4 of the rectifying tower through the high-pressure air conveying pipe 14 to participate in the rectifying process of the lower tower 4; the liquid oxygen in the cold source channel of the liquid oxygen evaporator 7 is heated to form low-temperature oxygen which enters the oxygen conveying pipe 8, then passes through the cold source channel of the main heat exchanger 1 and the auxiliary heat exchanger 12 and the electric heater 19 in sequence, and then is fed back to the glass melting furnace through the temperature sensor 18.
A part of liquid oxygen conveyed by the liquid oxygen channel of the main condensation evaporator 5 is conveyed to a cold source channel of a liquid oxygen evaporator 7 through a liquid oxygen conveying main pipe 6; the other part of the liquid oxygen conveyed by the liquid oxygen channel of the main condensation evaporator 5 is conveyed to the liquid oxygen storage tank 15 through the liquid oxygen conveying main pipe 6, the liquid oxygen conveying branch pipe 17 and the heat source channel of the subcooler 29 in sequence; and meanwhile, the waste nitrogen passes through a heat source channel of the subcooler 29 and is subjected to heat exchange with waste nitrogen conveyed from the top of the upper tower 3, the liquid oxygen is cooled through the heat source channel of the subcooler 29 and is conveyed into the liquid oxygen storage tank 15, the waste nitrogen is generated from the top of the upper tower 3 and then enters the waste nitrogen conveying pipe 28, and then the waste nitrogen sequentially passes through a cold source channel of the subcooler 29, the main heat exchanger 1 and the tail end of the waste nitrogen conveying pipe 28 and is conveyed to a user.
Through the embodiment, the product utilizes the compressor 9 to pressurize part of air from the molecular sieve system again and utilizes the pressurized compressed air and the low-temperature oxygen to carry out heat exchange, thereby reducing the electric energy consumed by oxygen heating, and the pressurized compressed air heated by the compressor 9 is cooled by the low-temperature oxygen, and then sequentially passes through the main heat exchanger 1 and the turboexpander 10 to obtain compressed air with lower temperature, and then is introduced into the lower tower 4 to participate in the rectification process of the lower tower 4, thereby reducing the energy consumption of the rectification process of the lower tower 4.
The utility model relates to an oxygen supply device that glass melting furnace used that satisfies the oxygen supply equipment field worker needs that glass melting furnace used, feasible the utility model discloses extensive market prospect has.
Claims (7)
1. The utility model provides an oxygen supply device that glass melting furnace used, includes main heat exchanger (1), air transportation main pipe (2) and the rectifying column that supplies the gas in the air separation system to carry out the heat exchange, the rectifying column include tower (3), lower tower (4) and main condensation evaporimeter (5), its characterized in that: the main condensation evaporator (5) is provided with a liquid oxygen conveying main pipe (6), the tail end of the liquid oxygen conveying main pipe (6) is provided with a liquid oxygen evaporator (7), the liquid oxygen evaporator (7) and the main heat exchanger (1) are provided with oxygen conveying pipes (8), part of the air conveying main pipe (2) is arranged on the main heat exchanger (1), the air conveying main pipe (2) between the air inlet end of the air conveying main pipe (2) and the main heat exchanger (1) is provided with a compressor (9), the air outlet end of the air conveying main pipe (2) is provided with a turbine expander (10), the turbine expander (10) is communicated with the upper tower (3) through a low-pressure air conveying pipe (11), an auxiliary heat exchanger (12) is arranged on an oxygen conveying pipe (8) at one side of the main heat exchanger (1) far away from the liquid oxygen evaporator (7) and an air conveying main pipe (2) between the compressor (9) and the main heat exchanger (1).
2. The oxygen supply apparatus for a glass melting furnace as set forth in claim 1, wherein: liquid oxygen evaporimeter (7) be located the below of main condensation evaporimeter (5), liquid oxygen evaporimeter (7) including evaporimeter heat source entrance point, evaporimeter heat source exit end, evaporimeter cold source entrance point and evaporimeter cold source exit end, evaporimeter cold source exit end and oxygen conveyer pipe (8) be linked together, evaporimeter cold source entrance point and liquid oxygen transport be responsible for (6) and be linked together, evaporimeter heat source entrance point and main heat exchanger (1) on be provided with air transport branch pipe (13), air transport between the inlet end of compressor (9) and air transport person in charge (2) is responsible for (2) and is linked together with the inlet end of air transport branch pipe (13), evaporimeter heat source exit end and lower tower (4) be linked together through highly-compressed air conveyer pipe (14).
3. The oxygen supply apparatus for a glass melting furnace as set forth in claim 1, wherein: and a liquid oxygen storage tank (15) is arranged below the main condensation evaporator (5), and the liquid oxygen storage tank (15) is communicated with the liquid oxygen delivery main pipe (6) through a liquid oxygen delivery branch pipe (17).
4. The oxygen supply apparatus for a glass melting furnace as set forth in claim 1, wherein: the oxygen delivery pipe (8) between the air outlet end of the oxygen delivery pipe (8) and the auxiliary heat exchanger (12) is provided with a temperature sensor (18), and the oxygen delivery pipe (8) between the temperature sensor (18) and the auxiliary heat exchanger (12) is provided with an electric heater (19).
5. The oxygen supply apparatus for a glass melting furnace as set forth in claim 2, wherein: a first adjusting valve (20) and a first flow sensor (21) are arranged on an air conveying branch pipe (13) between the air conveying main pipe (2) and the main heat exchanger (1), and a second adjusting valve (22) and a second flow sensor (23) are arranged on the air conveying main pipe (2) between the air conveying branch pipe (13) and the compressor (9).
6. The oxygen supply apparatus for a glass melting furnace as set forth in claim 3, wherein: the liquid oxygen conveying branch pipe (17) is provided with a third regulating valve (24) and a third flow sensor (25), and a fourth regulating valve (26) and a fourth flow sensor (27) are arranged on the liquid oxygen conveying main pipe (6) between the liquid oxygen conveying branch pipe (17) and the liquid oxygen evaporator (7).
7. The oxygen supply apparatus for a glass melting furnace as set forth in claim 3, wherein: and waste nitrogen conveying pipes (28) are arranged on the upper tower (3) and the main heat exchanger (1), and subcoolers (29) are arranged on the waste nitrogen conveying pipes (28) and the liquid oxygen conveying branch pipes (17) between the upper tower (3) and the main heat exchanger (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221224484.4U CN217323844U (en) | 2022-05-19 | 2022-05-19 | Oxygen supply device for glass melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221224484.4U CN217323844U (en) | 2022-05-19 | 2022-05-19 | Oxygen supply device for glass melting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217323844U true CN217323844U (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221224484.4U Active CN217323844U (en) | 2022-05-19 | 2022-05-19 | Oxygen supply device for glass melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217323844U (en) |
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2022
- 2022-05-19 CN CN202221224484.4U patent/CN217323844U/en active Active
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