CN214536288U - Waste heat recovery device for organic silicon production - Google Patents
Waste heat recovery device for organic silicon production Download PDFInfo
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- CN214536288U CN214536288U CN202120706001.3U CN202120706001U CN214536288U CN 214536288 U CN214536288 U CN 214536288U CN 202120706001 U CN202120706001 U CN 202120706001U CN 214536288 U CN214536288 U CN 214536288U
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
A waste heat recovery device for organic silicon production is used for heat recovery of waste gas and waste liquid, the waste gas is introduced into a pyrolysis device for pyrolysis, the pyrolyzed waste gas and air supplemented into a combustion furnace are respectively introduced into a gas-gas phase heat exchange device for heat exchange, and then are respectively introduced into the gas-liquid phase heat exchange device together with cooling medium water, and the medium water passing through the gas-liquid phase heat exchange device is conveyed to a storage tank for storage through a communicated pipe network; the waste liquid and medium water respectively carry out heat exchange through a liquid-liquid phase heat exchange device, and the exchanged medium water is conveyed to the storage tank through a pipe network to be stored. The utility model discloses to the waste gas that contains organic matter that produces in the organosilicon production process to and the recovery is unified to a large amount of heats that contain in the waste liquid, carry out the pyrolysis earlier to the organic matter that contains in the waste gas, rethread gas phase heat exchange device with heat energy transfer to the air that the combustion furnace was fired in the benefit, with the thermal efficiency that promotes combustion furnace, medium water lets in the bin and carries out difference or keep apart the storage.
Description
Technical Field
The utility model relates to an organosilicon waste heat recovery field, concretely relates to waste heat recovery device is used in organosilicon production.
Background
The organosilicon, i.e. organosilicon compound, is a compound containing Si-O bonds and at least one organic group directly connected with silicon atoms, wherein polysiloxane which is composed of siloxane bonds (-Si-0-Si-) as a framework is the most deeply researched and widely applied class in the organosilicon compound and accounts for more than 90 percent of the total dosage. The organic silicon has good temperature resistance and weather resistance, electrical insulation performance, low surface tension and low surface energy, and the organic silicon has the excellent performances, so the organic silicon has wide application range, not only can be used as a special material in aviation, top-end technology and military technical departments, but also can be used in various departments of national economy.
In organosilicon production, will produce a large amount of waste gas and waste gas, and contain a large amount of heats in the waste gas waste liquid, and waste heat recovery system under the prior art is too complicated, and contains organic compound in the waste gas, often carries out the pyrolysis earlier in order to form carbon dioxide and water to organic matter wherein, and thermal energy further promotes after the pyrolysis, and the value of retrieving expects much more, and can not be compatible to the recovery of waste gas and used heat at present, the utility model discloses utilize the medium water that the specific heat capacity is big to retrieve waste gas and waste liquid waste heat in the while.
Disclosure of Invention
According to the problem that the background art provided, the utility model provides an organosilicon production is with waste heat recovery device solves, it is right next the utility model discloses do further to explain.
A waste heat recovery device for organic silicon production is used for heat recovery of waste gas and waste liquid and comprises a pyrolysis device, a gas-gas phase heat exchange device, a gas-liquid phase heat exchange device, a storage tank and a liquid-liquid phase heat exchange device; the waste gas is introduced into a pyrolysis device for pyrolysis, the pyrolyzed waste gas and air supplemented into a combustion furnace are respectively introduced into a gas-gas phase heat exchange device for heat exchange, the waste gas and cooling medium water passing through the gas-gas phase heat exchange device are respectively introduced into the gas-gas phase heat exchange device for heat exchange, the waste gas and the water are subjected to heat exchange, and the medium water passing through the gas-gas phase heat exchange device is conveyed to a storage box for storage through a communicated pipe network; the waste liquid and medium water respectively carry out heat exchange through a liquid-liquid phase heat exchange device, and the exchanged medium water is conveyed to the storage tank through a pipe network to be stored.
Preferably, a control valve is arranged on a pipeline connecting the gas-gas phase heat exchange device and the medium water inlet of the liquid-liquid phase heat exchange device to control the flow rate of the medium water.
Preferably, a plurality of gas-gas phase heat exchange devices are arranged according to the flow rate of the waste gas, and the waste gas respectively passes through the gas-gas phase heat exchange devices through a pipe network, so that the flow rate of the waste gas is reduced to improve the heat exchange efficiency.
Optionally, medium water of the gas-liquid phase heat exchange device and medium water of the liquid-liquid phase heat exchange device are conveyed to different storage tanks and stored respectively;
preferably, medium water of the gas-liquid phase heat exchange device and the liquid-liquid phase heat exchange device is jointly conveyed to the storage tank to be stored together.
Preferably, the storage tank is divided into two grids by a heat insulation plate, and medium water of the gas-liquid phase heat exchange device and the liquid-liquid phase heat exchange device is respectively communicated to the two grids for separated storage;
preferably, the heat insulation plate is provided with a communication valve capable of controlling opening and closing, and two grids of the storage tank are communicated or isolated through opening and closing.
Has the advantages that: compared with the prior art, the utility model discloses the waste gas that contains organic matter to producing in the organosilicon production process to and the recovery is unified to a large amount of heats that contain in the waste liquid, carry out the pyrolysis earlier to the organic matter that contains in the waste gas, rethread gaseous phase heat exchange device is with heat energy transfer to the air that the combustion furnace was fired in the benefit, with the thermal efficiency that promotes combustion furnace, reduce the temperature of waste gas simultaneously, then waste gas waste liquid carries out the heat exchange through heat exchange device and medium water respectively in order to retrieve the heat, let in the bin with medium water at last and carry out difference or keep apart the storage.
Drawings
FIG. 1: the structure of the utility model is shown schematically;
in the figure: the device comprises a pyrolysis device 1, a gas-gas phase heat exchange device 2, a gas-liquid phase heat exchange device 3, a storage tank 4, a liquid-liquid phase heat exchange device 5, a control valve 6, a heat insulation plate 7 and a communication valve 8.
Detailed Description
A specific embodiment of the present invention will be described in detail with reference to fig. 1.
A waste heat recovery device for organic silicon production is characterized in that waste gas and waste heat in the organic silicon production process are recovered together through medium water, wherein the waste gas in the organic silicon production process is introduced into a pyrolysis device 1 for pyrolysis, the pyrolyzed gas contains a large amount of heat, the pyrolyzed gas and air led to a combustion furnace are respectively introduced into a gas-gas heat exchange device 2 for heat exchange, the heat energy in the waste gas further heated by the pyrolysis device 1 is partially exchanged into the air, and the air is heated and then introduced into the combustion furnace, so that the combustion heat efficiency of the combustion furnace is higher, and meanwhile, the heat energy of the waste gas is reduced; waste gas passes through the first gas-phase heat exchange device 2 and then is respectively introduced into the gas-liquid-phase heat exchange device 3 together with cooling medium water, the waste gas and the water are subjected to heat exchange, the waste gas is subjected to heat recovery through water with large specific heat capacity, and the heated water is conveyed to the storage tank 4 through a communicated pipe network by the gas-liquid-phase heat exchange device 3 for storage, so that waste heat recovery of the waste gas is realized;
the waste liquid and the medium water respectively carry out heat exchange through the liquid-liquid phase heat exchange device 5, and the exchanged medium water is also conveyed to the storage tank 4 through a pipe network for storage.
Carry out the pyrolysis earlier with waste gas in this embodiment, carry out the pyrolysis with the organic matter in the waste gas, nevertheless promoted the heat of waste gas simultaneously, the temperature is too high this moment, consequently this embodiment rethread gas phase heat exchange device 2 with heat energy transfer to the air of mending the burning furnace to promote the thermal efficiency of burning furnace, reduce the temperature of waste gas simultaneously, make subsequent gas phase heat exchange device 3's heat load can reduce the setting standard.
In this embodiment, the ratio of the waste gas to the waste liquid is not constant according to the process, and in order to control the distribution of the medium water, a control valve 6 is arranged on a pipeline connecting the medium water inlets of the gas-gas phase heat exchange device 2 and the liquid-liquid phase heat exchange device 5 to control the flow rate of the medium water.
In the technology, the volume of waste gas is far greater than that of waste liquid, and simultaneously for promoting the exchange efficiency of waste gas and medium water, the gas-gas phase heat exchange device 2 of this embodiment can set up a plurality ofly, and waste gas passes through gas-gas phase heat exchange device 2 respectively through the pipe network, makes the waste gas velocity of flow reduce in order to promote heat exchange efficiency.
The volume and the temperature of the waste gas are far larger than those of the waste liquid, after the gas-liquid phase heat exchange device 3 carries out heat exchange, the temperature of the medium water is obviously higher than that of the medium water from the liquid-liquid phase heat exchange device 5, and the medium water of the gas-liquid phase heat exchange device 3 and the medium water of the liquid-liquid phase heat exchange device 5 are conveyed to different storage boxes 4 to be stored respectively or conveyed to the storage boxes 4 together to be stored together as required.
In this embodiment, the storage box 4 is divided into two compartments by a thermal insulation board 7, medium water of the gas-liquid phase heat exchange device 3 and medium water of the liquid-liquid phase heat exchange device 5 are respectively communicated to the two compartments for storage, preferably, a communicating valve 8 capable of controlling opening and closing is arranged on the thermal insulation board, and the two compartments of the storage box 4 are communicated or isolated by opening and closing.
The utility model discloses to the waste gas that contains organic matter that produces in the organosilicon production process to and the recovery is unified to a large amount of heats that contain in the waste liquid, carry out the pyrolysis earlier to the organic matter that contains in the waste gas, rethread gas phase heat exchange device is with heat energy transfer to the air that the combustion furnace was fired in the benefit, in order to promote the thermal efficiency that fires burning furnace, reduce the temperature of waste gas simultaneously, then waste gas waste liquid carries out the heat exchange through heat exchange device and medium water respectively in order to retrieve the heat, let in the bin with medium water at last and carry out difference or keep apart the storage.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an organic silicon production is with waste heat recovery device for waste gas and waste liquid's heat recovery, its characterized in that: comprises a pyrolysis device (1), a gas-gas phase heat exchange device (2), a gas-liquid phase heat exchange device (3), a storage box (4) and a liquid-liquid phase heat exchange device (5);
the waste gas is introduced into a pyrolysis device (1) for pyrolysis, the pyrolyzed waste gas and air supplemented into a combustion furnace are respectively introduced into a gas-gas phase heat exchange device (2) for heat exchange, the waste gas and cooling medium water passing through the gas-gas phase heat exchange device (2) are respectively introduced into a gas-liquid phase heat exchange device (3), the waste gas and the water are subjected to heat exchange, and the medium water passing through the gas-liquid phase heat exchange device (3) is conveyed to a storage tank (4) through a communicated pipe network for storage;
the waste liquid and medium water are respectively subjected to heat exchange through a liquid-liquid phase heat exchange device (5), and the exchanged medium water is conveyed to a storage tank (4) through a pipe network for storage.
2. The waste heat recovery device according to claim 1, characterized in that:
and a control valve (6) is arranged on a pipeline connecting the gas-phase heat exchange device (2) and the medium water inlet of the liquid-liquid phase heat exchange device (5).
3. The waste heat recovery device according to claim 1, characterized in that:
a plurality of gas-gas phase heat exchange devices (2) are arranged according to the flow of the waste gas, and the waste gas is respectively led into the gas-gas phase heat exchange devices (2) through a pipe network.
4. The waste heat recovery device according to claim 1, characterized in that:
and medium water of the gas-liquid phase heat exchange device (3) and the liquid-liquid phase heat exchange device (5) is conveyed to different storage tanks (4).
5. The waste heat recovery device according to claim 1, characterized in that:
and medium water of the gas-liquid phase heat exchange device (3) and the liquid-liquid phase heat exchange device (5) are jointly conveyed to the storage tank (4) to be stored together.
6. The waste heat recovery device according to claim 5, characterized in that:
the storage tank (4) is divided into two grids through a heat insulation plate (7), and medium water of the gas-liquid phase heat exchange device (3) and the liquid-liquid phase heat exchange device (5) is respectively communicated to the two grids for separation and storage.
7. The waste heat recovery device according to claim 6, characterized in that:
the heat insulation plate (7) is provided with a communicating valve (8) capable of controlling opening and closing, and two grids of the storage box (4) are communicated or isolated through opening and closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120706001.3U CN214536288U (en) | 2021-04-08 | 2021-04-08 | Waste heat recovery device for organic silicon production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120706001.3U CN214536288U (en) | 2021-04-08 | 2021-04-08 | Waste heat recovery device for organic silicon production |
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| Publication Number | Publication Date |
|---|---|
| CN214536288U true CN214536288U (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120706001.3U Active CN214536288U (en) | 2021-04-08 | 2021-04-08 | Waste heat recovery device for organic silicon production |
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| CN (1) | CN214536288U (en) |
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2021
- 2021-04-08 CN CN202120706001.3U patent/CN214536288U/en active Active
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